458 lines
66 KiB
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458 lines
66 KiB
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<document ID-DOI="10.11646/phytotaxa.575.3.1" ID-ISSN="1179-3163" ID-Zenodo-Dep="7431242" checkinTime="1670915127192" checkinUser="plazi" docAuthor="Costa, Lívia F., Wetzel, Carlos E., Maquardt, Gisele C., Zanon, Jaques E., Ector, Luc & Bicudo, Denise C." docDate="2022" docId="0399343DFF8BFFD676ACBD83FEF9F836" docLanguage="en" docName="phytotaxa.575.3.1.pdf" docOrigin="Phytotaxa 575 (3)" docSource="http://dx.doi.org/10.11646/phytotaxa.575.3.1" docStyle="DocumentStyle:96748F8F1B6C902996E134952A3A36B9.5:Phytotaxa.2014-.journal_article" docStyleId="96748F8F1B6C902996E134952A3A36B9" docStyleName="Phytotaxa.2014-.journal_article" docStyleVersion="5" docTitle="Achnanthidium parvicapitatum L. F. Costa, Ector & C. E. Wetzel 2022, sp. nov." docType="treatment" docVersion="3" lastPageNumber="202" masterDocId="FFA04C45FF85FFD97624BD1DFF97FFF6" masterDocTitle="Taxonomy and ecology of Achnanthidium (Bacillariophyta, Achnanthidiaceae) from southeastern Brazil with the description of six new species" masterLastPageNumber="223" masterPageNumber="187" pageNumber="201" updateTime="1670961475714" updateUser="jonas" zenodo-license-figures="UNSPECIFIED" zenodo-license-treatments="UNSPECIFIED">
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<mods:titleInfo>
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<mods:title>Taxonomy and ecology of Achnanthidium (Bacillariophyta, Achnanthidiaceae) from southeastern Brazil with the description of six new species</mods:title>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Costa, Lívia F.</mods:namePart>
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<mods:affiliation>Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & livia. fcosta @ hotmail. com; https: // orcid. org / 0000 - 0001 - 7148 - 9964</mods:affiliation>
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<mods:nameIdentifier type="email">livia.fcosta@hotmail.com</mods:nameIdentifier>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Wetzel, Carlos E.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0001-5330-0494</mods:nameIdentifier>
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<mods:affiliation>Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation Department (ERIN), Observatory for Climate, Environment and Biodiversity (OCEB), 41 rue du Brill, 4422 Belvaux, Luxembourg. & carlos. wetzel @ list. lu; https: // orcid. org / 0000 - 0001 - 5330 - 0494</mods:affiliation>
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<mods:nameIdentifier type="email">carlos.wetzel@list.lu</mods:nameIdentifier>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Maquardt, Gisele C.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0002-2721-1487</mods:nameIdentifier>
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<mods:affiliation>Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & Universidade Guarulhos, Centro de Pós-Graduação, Pesquisa e Extensão CEPPE, Praça Tereza Cristina 88, 07023070 Guarulhos, SP, Brazil. & giselecmarquardt @ gmail. com; https: // orcid. org / 0000 - 0002 - 2721 - 1487</mods:affiliation>
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<mods:nameIdentifier type="email">giselecmarquardt@gmail.com</mods:nameIdentifier>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Zanon, Jaques E.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0002-9619-4393</mods:nameIdentifier>
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<mods:affiliation>Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & jaques. zanon @ gmail. com; https: // orcid. org / 0000 - 0002 - 9619 - 4393</mods:affiliation>
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<mods:nameIdentifier type="email">jaques.zanon@gmail.com</mods:nameIdentifier>
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</mods:name>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Ector, Luc</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0002-4573-9445</mods:nameIdentifier>
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<mods:affiliation>Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation Department (ERIN), Observatory for Climate, Environment and Biodiversity (OCEB), 41 rue du Brill, 4422 Belvaux, Luxembourg. & https: // orcid. org / 0000 - 0002 - 4573 - 9445</mods:affiliation>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Bicudo, Denise C.</mods:namePart>
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<mods:nameIdentifier type="ORCID">0000-0002-4248-3261</mods:nameIdentifier>
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<mods:affiliation>Instituto de Pesquisas Ambientais (IPA), Department of Biodiversity Conservation, Av. Miguel Estéfano 3687, 04301 - 012 São Paulo, SP, Brazil. & denisecbicudo @ gmail. com; https: // orcid. org / 0000 - 0002 - 4248 - 3261</mods:affiliation>
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<mods:nameIdentifier type="email">denisecbicudo@gmail.com</mods:nameIdentifier>
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<mods:title>Phytotaxa</mods:title>
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<mods:date>2022</mods:date>
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<mods:number>2022-12-13</mods:number>
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<mods:detail type="volume">
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<mods:number>575</mods:number>
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<mods:number>3</mods:number>
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<mods:start>187</mods:start>
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<mods:url>http://dx.doi.org/10.11646/phytotaxa.575.3.1</mods:url>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">10.11646/phytotaxa.575.3.1</mods:identifier>
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<mods:identifier type="ISSN">1179-3163</mods:identifier>
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<mods:identifier type="Zenodo-Dep">7431242</mods:identifier>
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<treatment LSID="urn:lsid:plazi:treatment:0399343DFF8BFFD676ACBD83FEF9F836" httpUri="http://treatment.plazi.org/id/0399343DFF8BFFD676ACBD83FEF9F836" lastPageId="15" lastPageNumber="202" pageId="14" pageNumber="201">
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<taxonomicName authority="L.F.Costa, Ector & C.E.Wetzel" authorityName="L. F. Costa, Ector & C. E. Wetzel" authorityYear="2022" box="[136,852,158,185]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="14" pageNumber="201" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">
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<emphasis bold="true" box="[136,499,158,185]" italics="true" pageId="14" pageNumber="201">Achnanthidium parvicapitatum</emphasis>
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L.F.Costa, Ector & C.E.Wetzel
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</taxonomicName>
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<emphasis box="[859,944,159,184]" italics="true" pageId="14" pageNumber="201">
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<taxonomicNameLabel box="[859,944,159,184]" pageId="14" pageNumber="201" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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(
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<figureCitation box="[958,1113,158,184]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201">Figs 100–116</figureCitation>
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)
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="15" lastPageNumber="202" pageId="14" pageNumber="201" type="description">
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<paragraph blockId="14.[136,1452,230,545]" pageId="14" pageNumber="201">
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<emphasis bold="true" box="[136,312,230,256]" pageId="14" pageNumber="201">Description:—</emphasis>
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LM: Valves linear-lanceolate, with subtle shoulders and subcapitate to small capitate apices (
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<figureCitation captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201">Figs 100– 111</figureCitation>
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); 18.2–22.7 µm long, 2.7–3.0 µm wide. Raphe valve: axial area narrow and linear, central area rounded, with 2–4 shortened striae on both sides of the valve, rarely forming a rectangular fascia (
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<figureCitation box="[1013,1172,302,329]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201">Figs 100–105</figureCitation>
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). Raphe filiform straight. Transapical striae slightly radiate throughout the entire valve, more spaced in the central area, and becoming denser and more strongly radiate towards the apices (
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<figureCitation box="[648,807,374,401]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201">Figs 100–105</figureCitation>
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);
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10 µm. Rapheless valve: axial area narrow and linear, widening towards the central area; central area absent or narrow lanceolate, with 1–2 shortened striae on both sides of the valve (
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<figureCitation box="[352,510,446,472]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201">Figs 106–111</figureCitation>
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). Transapical striae slightly radiate throughout the entire valve, more spaced in the central area, and becoming denser towards the apices;
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10 µm. Girdle view rectangularly arched, with pointed apices recurved to the rapheless valve (
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<figureCitation box="[575,672,518,544]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201">Fig. 112</figureCitation>
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).
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</paragraph>
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<caption ID-DOI="http://doi.org/10.5281/zenodo.7431260" ID-Zenodo-Dep="7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201" startId="14.[136,243,1738,1760]" targetBox="[228,1362,569,1709]" targetPageId="14">
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<paragraph blockId="14.[136,1452,1738,1940]" pageId="14" pageNumber="201">
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<emphasis bold="true" box="[136,340,1738,1760]" pageId="14" pageNumber="201">FIGURES 100–116.</emphasis>
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LM and SEM images of
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<emphasis box="[599,985,1738,1760]" italics="true" pageId="14" pageNumber="201">
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<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[599,901,1738,1760]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="14" pageNumber="201" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">Achnanthidium parvicapitatum</taxonomicName>
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<taxonomicNameLabel box="[909,985,1739,1760]" pageId="14" pageNumber="201" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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||
from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure.
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</paragraph>
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</caption>
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<paragraph blockId="14.[136,1452,1986,2085]" lastBlockId="15.[136,1452,158,1985]" lastPageId="15" lastPageNumber="202" pageId="14" pageNumber="201">
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SEM: Raphe prolonged after the striae, terminating on the border between the valve face and mantle (
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<figureCitation box="[1341,1439,1986,2013]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201">Fig. 113</figureCitation>
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). Central and terminal raphe fissures straight (
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<figureCitation box="[644,743,2022,2049]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201">Fig. 113</figureCitation>
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). Striae mainly composed of 3–4 or 4–5 rounded to elongated areolae, sometimes slit-like near the valve margin (
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<figureCitation box="[707,863,2058,2085]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201">Figs 113, 115</figureCitation>
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). Mantle with one row of slit-like areolae (
|
||
<figureCitation box="[1342,1439,2058,2085]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="14" pageNumber="201">Fig. 113</figureCitation>
|
||
). Presence of two small punctuations, spaced and apically arranged on central area of rapheless valve of some longer valves (
|
||
<figureCitation box="[223,320,194,221]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="15" pageNumber="202">Fig. 115</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="15" pageNumber="202" type="materials_examined">
|
||
<paragraph blockId="15.[136,1452,158,1985]" pageId="15" pageNumber="202">
|
||
<emphasis bold="true" box="[189,286,230,256]" pageId="15" pageNumber="202">Type:—</emphasis>
|
||
<materialsCitation collectingDate="2014-02-27" collectionCode="R" collectorName="Bartozek & D. C. Bicudo" country="Brazil" latitude="-23.582933" location="Santa Helena" longLatPrecision="1" longitude="-47.430702" municipality="Votorantim" pageId="15" pageNumber="202" specimenCount="1" stateProvince="Sao Paulo" typeStatus="holotype">
|
||
<collectingCountry box="[285,390,230,256]" name="Brazil" pageId="15" pageNumber="202">BRAZIL</collectingCountry>
|
||
.
|
||
<collectingRegion box="[399,573,230,257]" country="Brazil" name="Sao Paulo" pageId="15" pageNumber="202">São Paulo state</collectingRegion>
|
||
:
|
||
<collectingMunicipality box="[582,711,230,256]" pageId="15" pageNumber="202">Votorantim</collectingMunicipality>
|
||
,
|
||
<location LSID="urn:lsid:plazi:treatment:0399343DFF8BFFD676ACBD83FEF9F836:8EEFD3F0FF8AFFD674F4BDFBFCF3FEF6" box="[720,868,230,256]" country="Brazil" latitude="-23.582933" longLatPrecision="1" longitude="-47.430702" municipality="Votorantim" name="Santa Helena" pageId="15" pageNumber="202" stateProvince="Sao Paulo">Santa Helena</location>
|
||
reservoir, epilithon,
|
||
<geoCoordinate box="[1098,1280,230,257]" degrees="23" direction="south" minutes="34" orientation="latitude" pageId="15" pageNumber="202" precision="1" seconds="58.56" value="-23.582933">23º 34’ 58.56” S</geoCoordinate>
|
||
,
|
||
<geoCoordinate degrees="47" direction="west" minutes="25" orientation="longitude" pageId="15" pageNumber="202" precision="1" seconds="50.52" value="-47.430702">47º 25’ 50.52” W</geoCoordinate>
|
||
,
|
||
<emphasis box="[174,755,266,293]" italics="true" pageId="15" pageNumber="202">
|
||
<collectorName box="[174,220,266,292]" name="European Committee" pageId="15" pageNumber="202">E.C.</collectorName>
|
||
<collectionCode box="[220,239,266,292]" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="15" pageNumber="202">R</collectionCode>
|
||
.
|
||
<collectorName box="[242,348,266,292]" pageId="15" pageNumber="202">Bartozek</collectorName>
|
||
&
|
||
<collectorName box="[383,517,266,292]" pageId="15" pageNumber="202">D.C.Bicudo</collectorName>
|
||
,
|
||
<date box="[529,755,266,292]" pageId="15" pageNumber="202" value="2014-02-27">
|
||
<collectingDate box="[529,755,266,292]" pageId="15" pageNumber="202" value="2014-02-27">27th February 2014</collectingDate>
|
||
</date>
|
||
</emphasis>
|
||
(
|
||
<typeStatus box="[769,869,266,292]" pageId="15" pageNumber="202">holotype</typeStatus>
|
||
SP-469524! =
|
||
<figureCitation box="[1040,1135,266,292]" captionStart="FIGURES 100–116" captionStartId="14.[136,243,1738,1760]" captionTargetBox="[228,1362,569,1709]" captionTargetId="figure-187@14.[215,1371,569,1713]" captionTargetPageId="14" captionText="FIGURES 100–116. LM and SEM images of Achnanthidium parvicapitatum sp. nov. from the type (SP-469524) from Santa Helena reservoir, São Paulo state. Figure 108 corresponds to the holotype. 100–105. LM views of raphe valves. 106–111. LM views of rapheless valves. 112. Girdle view of the new taxon. 113. SEM external view of raphe valve showing striation pattern, axial and central areas. 114. SEM internal view of the raphe and rapheless valves. 115. SEM external view of the rapheless valves showing striation pattern, axial and central areas, including the presence of two small punctuations on central area. 116. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431260" httpUri="https://zenodo.org/record/7431260/files/figure.png" pageId="15" pageNumber="202">Fig. 108</figureCitation>
|
||
, isotype: BR-4616)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection box="[189,1277,302,329]" pageId="15" pageNumber="202" type="etymology">
|
||
<paragraph blockId="15.[136,1452,158,1985]" box="[189,1277,302,329]" pageId="15" pageNumber="202">
|
||
<emphasis bold="true" box="[189,356,302,328]" pageId="15" pageNumber="202">Etymology:—</emphasis>
|
||
The specific epithet refers to the shape of the apices, which are small and capitate.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="15" pageNumber="202" type="discussion">
|
||
<paragraph blockId="15.[136,1452,158,1985]" pageId="15" pageNumber="202">
|
||
<emphasis bold="true" box="[189,496,338,364]" pageId="15" pageNumber="202">Taxonomical remarks:—</emphasis>
|
||
<taxonomicName authority="Witkowski, Kulikovskiy & Riaux-Gobin (2012: 65)" authorityName="Witkowski, Kulikovskiy & Riaux-Gobin" authorityPageNumber="65" authorityYear="2012" box="[497,1451,338,365]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="sieminskae">
|
||
<emphasis box="[497,807,338,364]" italics="true" pageId="15" pageNumber="202">Achnanthidium sieminskae</emphasis>
|
||
<bibRefCitation author="Witkowski, A. & Kulikovskiy, M. & Riaux-Gobin, C." box="[823,1451,338,365]" pageId="15" pageNumber="202" pagination="61 - 68" refId="ref25610" refString="Witkowski, A., Kulikovskiy, M. & Riaux-Gobin, C. (2012) Achnanthidium sieminskae, a new diatom species from the Kerguelen Archipelago (Austral Islands). In: Wolowski, K., Kaczmarska, I., Ehrman, J. M. & Wojtal, A. Z. (Eds.) Current Advances in Algal Taxonomy and its Applications. W. Szafer Institute of Botany, Polish Academy of Sciences, Krakow, pp. 61 - 68." type="book chapter" year="2012">Witkowski, Kulikovskiy & Riaux-Gobin (2012: 65)</bibRefCitation>
|
||
</taxonomicName>
|
||
described from marine environments of the Kerguelen Archipelago, Austral Islands (
|
||
<bibRefCitation author="Witkowski, A. & Kulikovskiy, M. & Riaux-Gobin, C." box="[1084,1336,374,400]" pageId="15" pageNumber="202" pagination="61 - 68" refId="ref25610" refString="Witkowski, A., Kulikovskiy, M. & Riaux-Gobin, C. (2012) Achnanthidium sieminskae, a new diatom species from the Kerguelen Archipelago (Austral Islands). In: Wolowski, K., Kaczmarska, I., Ehrman, J. M. & Wojtal, A. Z. (Eds.) Current Advances in Algal Taxonomy and its Applications. W. Szafer Institute of Botany, Polish Academy of Sciences, Krakow, pp. 61 - 68." type="book chapter" year="2012">
|
||
Witkowski
|
||
<emphasis box="[1215,1271,374,400]" italics="true" pageId="15" pageNumber="202">et al.</emphasis>
|
||
2012
|
||
</bibRefCitation>
|
||
) resemble our population. The Antarctic taxon has linear to narrowly linear-lanceolate valves with almost parallel to slightly convex margins (
|
||
<bibRefCitation author="Van de Vijver, B. & Kopalova, K." box="[326,687,446,472]" pageId="15" pageNumber="202" pagination="1 - 19" refId="ref25160" refString="Van de Vijver, B. & Kopalova, K. (2014) Four Achnanthidium species (Bacillariophyta) formerly identified as Achnanthidium minutissimum from the Antarctic Region. European Journal of Taxonomy 79: 1 - 19. https: // doi. org / 10.5852 / ejt. 2014.79" type="journal article" year="2014">Van de Vijver & Kopalová 2014</bibRefCitation>
|
||
), whereas
|
||
<emphasis box="[803,1093,447,473]" italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[803,1003,447,473]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">A. parvicapitatum</taxonomicName>
|
||
<taxonomicNameLabel box="[1009,1093,447,472]" pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
has more lanceolate valves with clearly convex margins, with the central portion evidently larger than the constriction before the apices, and sometimes larger than the apices. The apices in
|
||
<taxonomicName authorityName="Witkowski, Kulikovskiy & Riaux-Gobin" authorityYear="2012" box="[556,712,518,545]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="sieminskae">
|
||
<emphasis box="[556,712,518,545]" italics="true" pageId="15" pageNumber="202">A. sieminskae</emphasis>
|
||
</taxonomicName>
|
||
can also be rostrate (
|
||
<bibRefCitation author="Van de Vijver, B. & Kopalova, K." box="[957,1333,518,544]" pageId="15" pageNumber="202" pagination="1 - 19" refId="ref25160" refString="Van de Vijver, B. & Kopalova, K. (2014) Four Achnanthidium species (Bacillariophyta) formerly identified as Achnanthidium minutissimum from the Antarctic Region. European Journal of Taxonomy 79: 1 - 19. https: // doi. org / 10.5852 / ejt. 2014.79" type="journal article" year="2014">Van de Vijver & Kopalová 2014</bibRefCitation>
|
||
), differing from our populations.
|
||
</paragraph>
|
||
<paragraph blockId="15.[136,1452,158,1985]" pageId="15" pageNumber="202">
|
||
<treatmentCitationGroup pageId="15" pageNumber="202">
|
||
<treatmentCitation author="Lange-Bertalot, H." box="[189,1010,590,616]" page=")" pageId="15" pageNumber="202" year="1999">
|
||
<taxonomicName authority="(Lange-Bertalot) Lange-Bertalot (1999: 277)" authorityName="Lange-Bertalot" authorityPageNumber="277" authorityYear="1999" baseAuthorityName="Lange-Bertalot" box="[189,1010,590,616]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="caledonicum">
|
||
<emphasis box="[189,508,590,616]" italics="true" pageId="15" pageNumber="202">Achnanthidium caledonicum</emphasis>
|
||
(Lange-Bertalot)
|
||
<bibRefCitation author="Lange-Bertalot, H." box="[707,1010,590,616]" pageId="15" pageNumber="202" refId="ref22244" refString="Lange-Bertalot, H. (1999) Neue Kombinationen von Taxa aus Achnanthes Bory (sensu lato). In: Lange-Bertalot, H. (Ed.), Iconographia Diatomologica. Annotated Diatom Micrographs. Vol. 6. Phytogeography - Diversity - Taxonomy. Koeltz Scientific Books, Konigstein, Germany, pp. 276 - 289." type="book" year="1999">Lange-Bertalot (1999: 277)</bibRefCitation>
|
||
</taxonomicName>
|
||
</treatmentCitation>
|
||
can be confused with
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[1251,1451,591,617]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">
|
||
<emphasis box="[1251,1451,591,617]" italics="true" pageId="15" pageNumber="202">A. parvicapitatum</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel box="[136,227,627,653]" pageId="15" pageNumber="202" rank="species">
|
||
<emphasis box="[136,220,627,652]" italics="true" pageId="15" pageNumber="202">sp. nov</emphasis>
|
||
.
|
||
</taxonomicNameLabel>
|
||
The main difference between these two species is the broadly capitate apices in
|
||
<taxonomicName authorityName="Lange-Bertalot" authorityYear="1999" baseAuthorityName="Lange-Bertalot" box="[1192,1370,626,653]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="caledonicum">
|
||
<emphasis box="[1192,1370,626,653]" italics="true" pageId="15" pageNumber="202">A. caledonicum</emphasis>
|
||
</taxonomicName>
|
||
, while the Brazilian species present small capitate to subcapitate specimens. Another difference is that the valves of
|
||
<taxonomicName authorityName="Lange-Bertalot" authorityYear="1999" baseAuthorityName="Lange-Bertalot" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="caledonicum">
|
||
<emphasis italics="true" pageId="15" pageNumber="202">A. caledonicum</emphasis>
|
||
</taxonomicName>
|
||
are linear with parallel margins or sometimes inflated just at the centre, while
|
||
<emphasis italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[1204,1409,699,725]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">A. parvicapitatum</taxonomicName>
|
||
<taxonomicNameLabel pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
is linear-lanceolate and narrower. Previously, one Austrian specimen, in a mixed population, closely resembling
|
||
<emphasis box="[136,443,771,797]" italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[136,342,771,797]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">A. parvicapitatum</taxonomicName>
|
||
<taxonomicNameLabel box="[354,443,771,796]" pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
was illustrated in
|
||
<bibRefCitation author="Lange-Bertalot, H. & Krammer, K." box="[665,1066,770,797]" pageId="15" pageNumber="202" pagination="1 - 393" refId="ref22305" refString="Lange-Bertalot, H. & Krammer, K. (1989) Achnanthes eine Monographie der Gattung mit Definition der Gattung Cocconeis und Nachtragen zu den Naviculaceae. Bibliotheca Diatomologica 18: 1 - 393." type="journal article" year="1989">Lange-Bertalot & Krammer (1989</bibRefCitation>
|
||
, pl. 55,
|
||
<figureCitation box="[1167,1238,770,796]" captionStart="FIGURES 2–25" captionStartId="7.[136,243,1919,1941]" captionTargetBox="[341,1250,745,1888]" captionTargetId="figure-202@7.[328,1258,745,1895]" captionTargetPageId="7" captionText="FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431246" httpUri="https://zenodo.org/record/7431246/files/figure.png" pageId="15" pageNumber="202">Fig. 4</figureCitation>
|
||
) and identified as
|
||
<taxonomicName authority="(J. R. Carter) Lange-Bertalot" authorityName="Lange-Bertalot" baseAuthorityName="J. R. Carter" box="[136,859,806,833]" class="Bacillariophyceae" family="Achnanthaceae" genus="Achnanthes" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="variety" species="minutissima" variety="scotica">
|
||
<emphasis box="[136,409,806,832]" italics="true" pageId="15" pageNumber="202">Achnanthes minutissima</emphasis>
|
||
var.
|
||
<emphasis box="[464,543,807,832]" italics="true" pageId="15" pageNumber="202">scotica</emphasis>
|
||
(J.R.Carter) Lange-Bertalot
|
||
</taxonomicName>
|
||
(in
|
||
<treatmentCitation author="Lange-Bertalot, H. & Krammer, K." box="[904,1339,806,833]" page="106" pageId="15" pageNumber="202" year="1989">
|
||
<bibRefCitation author="Lange-Bertalot, H. & Krammer, K." box="[904,1339,806,833]" pageId="15" pageNumber="202" pagination="1 - 393" refId="ref22305" refString="Lange-Bertalot, H. & Krammer, K. (1989) Achnanthes eine Monographie der Gattung mit Definition der Gattung Cocconeis und Nachtragen zu den Naviculaceae. Bibliotheca Diatomologica 18: 1 - 393." type="journal article" year="1989">Lange-Bertalot & Krammer 1989: 106</bibRefCitation>
|
||
</treatmentCitation>
|
||
; currently considered a synonym of
|
||
<taxonomicName authorityName="Lange-Bertalot" authorityYear="1999" baseAuthorityName="Lange-Bertalot" box="[427,749,842,868]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="caledonicum">
|
||
<emphasis box="[427,749,842,868]" italics="true" pageId="15" pageNumber="202">Achnanthidium caledonicum</emphasis>
|
||
</taxonomicName>
|
||
). Specimens incorrectly identified as
|
||
<taxonomicName authorityName="Lange-Bertalot" authorityYear="1999" baseAuthorityName="Lange-Bertalot" box="[1177,1352,842,869]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="caledonicum">
|
||
<emphasis box="[1177,1352,842,869]" italics="true" pageId="15" pageNumber="202">A. caledonicum</emphasis>
|
||
</taxonomicName>
|
||
are very similar (
|
||
<bibRefCitation author="Krammer, K. & Lange-Bertalot, H." box="[228,607,878,904]" pageId="15" pageNumber="202" pagination="1 - 468" refId="ref21916" refString="Krammer, K. & Lange-Bertalot, H. (2004) Bacillariophyceae 4. Teil: Achnanthaceae, Kritische Erganzungen zu Achnanthes s. l., Navicula s. str., Gomphonema. Gesamtliteraturverzeichnis Teil 1 - 4. In: Ettl, H., Gartner, G., Gerloff, J., Heynig, H. & Mollenhauer, D. (Eds.) Susswasserflora von Mitteleuropa Vol. 2 / 4. Spektrum Akademischer Verlag, Heidelberg-Berlin, pp. 1 - 468." type="book chapter" year="2004">Krammer & Lange-Bertalot 2004</bibRefCitation>
|
||
, pl. 34,
|
||
<figureCitation box="[694,792,878,904]" captionStart="FIGURES 2–25" captionStartId="7.[136,243,1919,1941]" captionTargetBox="[341,1250,745,1888]" captionTargetId="figure-202@7.[328,1258,745,1895]" captionTargetPageId="7" captionText="FIGURES 2–25. LM and SEM images of Achnanthidium acutum sp. nov. from type material (SP-427898), Rio Grande reservoir, São Paulo state. Figure 17 corresponds to the holotype. 2–12. LM views of raphe valves. 13–20. LM views of rapheless valves. 21. SEM external view of raphe valves showing striation pattern, axial and central areas. 22. SEM external detail of the distal raphe end. 23. SEM external view of the rapheless valve showing striation pattern, axial and central areas. 24. SEM internal view of the raphe valve. 25. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431246" httpUri="https://zenodo.org/record/7431246/files/figure.png" pageId="15" pageNumber="202">Figs 4–6</figureCitation>
|
||
) and an investigation of those specimens is currently being carried out. Furthermore, similar German specimens were also identified as
|
||
<taxonomicName authorityName="Lange-Bertalot" authorityYear="1999" baseAuthorityName="Lange-Bertalot" box="[1002,1361,914,940]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" isUncertain="true" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="caledonicum">
|
||
<emphasis box="[1002,1173,914,940]" italics="true" pageId="15" pageNumber="202">Achnanthidium</emphasis>
|
||
cf.
|
||
<emphasis box="[1218,1361,914,940]" italics="true" pageId="15" pageNumber="202">caledonicum</emphasis>
|
||
</taxonomicName>
|
||
(pl. 24,
|
||
<figureCitation box="[136,261,950,977]" captionStart="FIGURES 45–71" captionStartId="12.[136,243,1718,1740]" captionTargetBox="[286,1305,421,1691]" captionTargetId="figure-123@12.[276,1311,421,1695]" captionTargetPageId="12" captionText="FIGURES 45–71. LM and SEM images of Achnanthidium lusitanicum from Garças Lake, São Paulo state (SP-469485). 45–56.LM views of raphe valves. 57–65. LM views of rapheless valves. 66, 67. SEM external view of raphe valves showing striation pattern, axial and central areas. 68. SEM internal view of the raphe valve. 69, 70. SEM external view of the rapheless valves showing striation pattern, axial and central areas. 71. SEM internal view of the rapheless valve. LM scale bar = 10 μm. SEM scale bars indicated in each figure." figureDoi="http://doi.org/10.5281/zenodo.7431254" httpUri="https://zenodo.org/record/7431254/files/figure.png" pageId="15" pageNumber="202">
|
||
Figs
|
||
<quantity box="[191,261,950,977]" metricMagnitude="0" metricUnit="m" metricValue="1.4986" metricValueMax="1.524" metricValueMin="1.4731999999999998" pageId="15" pageNumber="202" unit="in" value="59.0" valueMax="60.0" valueMin="58.0">58–60</quantity>
|
||
</figureCitation>
|
||
in
|
||
<bibRefCitation author="Lange-Bertalot, H. & Hofmann, G. & Werum, M. & Cantonati, M." box="[297,598,950,976]" pageId="15" pageNumber="202" pagination="1 - 942" refId="ref22404" refString="Lange-Bertalot, H., Hofmann, G., Werum, M. & Cantonati, M. (2017) Freshwater benthic diatoms of Central Europe: over 800 common species used in ecological assessment. English edition with updated taxonomy and added species. In: Cantonati, M., Kelly, M. G. & Lange-Bertalot, H. (Eds.) Koeltz Botanical Books, Schmitten-Oberreifenberg, pp. 1 - 942." type="book chapter" year="2017">
|
||
Lange-Bertalot
|
||
<emphasis box="[474,530,950,976]" italics="true" pageId="15" pageNumber="202">et al.</emphasis>
|
||
2017
|
||
</bibRefCitation>
|
||
).
|
||
</treatmentCitationGroup>
|
||
</paragraph>
|
||
<paragraph blockId="15.[136,1452,158,1985]" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Lange-Bertalot & F. Staab" authorityName="Lange-Bertalot & F. Staab" authorityYear="2004" box="[189,884,986,1012]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="neomicrocephalum">
|
||
<emphasis box="[189,584,986,1012]" italics="true" pageId="15" pageNumber="202">Achnanthidium neomicrocephalum</emphasis>
|
||
Lange-Bertalot & F.Staab
|
||
</taxonomicName>
|
||
(in
|
||
<bibRefCitation author="Krammer, K. & Lange-Bertalot, H." box="[933,1375,986,1013]" pageId="15" pageNumber="202" pagination="1 - 468" refId="ref21916" refString="Krammer, K. & Lange-Bertalot, H. (2004) Bacillariophyceae 4. Teil: Achnanthaceae, Kritische Erganzungen zu Achnanthes s. l., Navicula s. str., Gomphonema. Gesamtliteraturverzeichnis Teil 1 - 4. In: Ettl, H., Gartner, G., Gerloff, J., Heynig, H. & Mollenhauer, D. (Eds.) Susswasserflora von Mitteleuropa Vol. 2 / 4. Spektrum Akademischer Verlag, Heidelberg-Berlin, pp. 1 - 468." type="book chapter" year="2004">Krammer & Lange-Bertalot 2004: 431</bibRefCitation>
|
||
) bears some similarities with
|
||
<emphasis box="[391,686,1023,1049]" italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[391,594,1023,1049]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">A. parvicapitatum</taxonomicName>
|
||
<taxonomicNameLabel box="[601,686,1023,1048]" pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
, such as linear-lanceolate valves with capitate to subcapitate apices. Its slender valve shape with longer, narrower valves (22–38 µm long, 2.5–2.8 µm wide,
|
||
<bibRefCitation author="Krammer, K. & Lange-Bertalot, H." pageId="15" pageNumber="202" pagination="1 - 468" refId="ref21916" refString="Krammer, K. & Lange-Bertalot, H. (2004) Bacillariophyceae 4. Teil: Achnanthaceae, Kritische Erganzungen zu Achnanthes s. l., Navicula s. str., Gomphonema. Gesamtliteraturverzeichnis Teil 1 - 4. In: Ettl, H., Gartner, G., Gerloff, J., Heynig, H. & Mollenhauer, D. (Eds.) Susswasserflora von Mitteleuropa Vol. 2 / 4. Spektrum Akademischer Verlag, Heidelberg-Berlin, pp. 1 - 468." type="book chapter" year="2004">Krammer & Lange-Bertalot 2004</bibRefCitation>
|
||
) allows their separation, even though there are some overlaps in size ranges reported (21.6–25.3 μm long, 2.5–2.8 μm wide, by
|
||
<bibRefCitation author="Silva-Lehmkuhl, A. M. & Tremarin, P. I. & Vercellino, I. S. & Ludwig, T. A. V." box="[282,594,1130,1156]" pageId="15" pageNumber="202" pagination="20180568" refId="ref24687" refString="Silva-Lehmkuhl, A. M., Tremarin, P. I., Vercellino, I. S. & Ludwig, T. A. V. (2019) Periphytic diatoms from an oligotrophic lentic system, Piraquara I reservoir, Parana state, Brazil. Biota Neotropica 19 (2): e 20180568. https: // doi. org / 10.1590 / 1676 - 0611 - bn- 2018 - 0568" type="journal article" year="2019">
|
||
Silva-Lehmkuhl
|
||
<emphasis box="[471,527,1130,1156]" italics="true" pageId="15" pageNumber="202">et al.</emphasis>
|
||
2019
|
||
</bibRefCitation>
|
||
). Another distinction between the taxa is the subtle shoulders observed in the Brazilian populations but not present in
|
||
<taxonomicName authorityName="Lange-Bertalot & F. Staab" authorityYear="2004" box="[586,831,1166,1193]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="neomicrocephalum">
|
||
<emphasis box="[586,831,1166,1193]" italics="true" pageId="15" pageNumber="202">A. neomicrocephalum</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph blockId="15.[136,1452,158,1985]" pageId="15" pageNumber="202">
|
||
Recently described from
|
||
<collectingCountry box="[469,539,1202,1228]" name="China" pageId="15" pageNumber="202">China</collectingCountry>
|
||
,
|
||
<taxonomicName authority="P. Yu, Q." authorityName="P. Yu, Q." box="[549,963,1202,1229]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="longissimum">
|
||
<emphasis box="[549,869,1202,1228]" italics="true" pageId="15" pageNumber="202">Achnanthidium longissimum</emphasis>
|
||
P.Yu, Q.
|
||
</taxonomicName>
|
||
-M.You & Kociolek (in
|
||
<bibRefCitation author="Yu, P. & Kociolek, J. P. & You, Q. & Wang, Q." box="[1231,1444,1202,1229]" pageId="15" pageNumber="202" pagination="339 - 348" refId="ref25950" refString="Yu, P., Kociolek, J. P., You, Q. & Wang, Q. (2018) Achnanthidium longissimum sp. nov. (Bacillariophyta), a new diatom species from Jiuzhai Valley, Southwestern China. Diatom Research 33 (3): 339 - 348. https: // doi. org / 10.1080 / 0269249 X. 2018.1545704" type="journal article" year="2018">
|
||
Yu
|
||
<emphasis box="[1269,1324,1202,1228]" italics="true" pageId="15" pageNumber="202">et al.</emphasis>
|
||
2018: 340
|
||
</bibRefCitation>
|
||
) was compared in its protologue to
|
||
<taxonomicName authorityName="Lange-Bertalot" authorityYear="1999" baseAuthorityName="Lange-Bertalot" box="[529,704,1238,1265]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="caledonicum">
|
||
<emphasis box="[529,704,1238,1265]" italics="true" pageId="15" pageNumber="202">A. caledonicum</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName authorityName="Lange-Bertalot & F. Staab" authorityYear="2004" box="[761,1007,1238,1265]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="neomicrocephalum">
|
||
<emphasis box="[761,1007,1238,1265]" italics="true" pageId="15" pageNumber="202">A. neomicrocephalum</emphasis>
|
||
</taxonomicName>
|
||
. Despite the similar valve outline to
|
||
<emphasis italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">A. parvicapitatum</taxonomicName>
|
||
<taxonomicNameLabel box="[313,397,1275,1300]" pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
,
|
||
<taxonomicName box="[409,581,1274,1301]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="longissimum">
|
||
<emphasis box="[409,581,1274,1301]" italics="true" pageId="15" pageNumber="202">A. longissimum</emphasis>
|
||
</taxonomicName>
|
||
has capitate apices, and the raphe’s terminal fissures are strongly bent towards the same side of the valve. This feature is clearly visible in LM images.
|
||
<taxonomicName box="[959,1280,1310,1336]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="longissimum">
|
||
<emphasis box="[959,1280,1310,1336]" italics="true" pageId="15" pageNumber="202">Achnanthidium longissimum</emphasis>
|
||
</taxonomicName>
|
||
also has larger valves and a reduced stria density (36–48 μm long, 4.0–4.5 μm wide, 22–25 striae in 10 μm,
|
||
<bibRefCitation author="Yu, P. & Kociolek, J. P. & You, Q. & Wang, Q." box="[1209,1374,1346,1373]" pageId="15" pageNumber="202" pagination="339 - 348" refId="ref25950" refString="Yu, P., Kociolek, J. P., You, Q. & Wang, Q. (2018) Achnanthidium longissimum sp. nov. (Bacillariophyta), a new diatom species from Jiuzhai Valley, Southwestern China. Diatom Research 33 (3): 339 - 348. https: // doi. org / 10.1080 / 0269249 X. 2018.1545704" type="journal article" year="2018">
|
||
Yu
|
||
<emphasis box="[1249,1308,1346,1372]" italics="true" pageId="15" pageNumber="202">et al.</emphasis>
|
||
2018
|
||
</bibRefCitation>
|
||
) when compared to the new Brazilian taxon.
|
||
</paragraph>
|
||
<paragraph blockId="15.[136,1452,158,1985]" pageId="15" pageNumber="202">
|
||
Another similar species to
|
||
<emphasis box="[513,825,1419,1445]" italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[513,721,1419,1445]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">A. parvicapitatum</taxonomicName>
|
||
<taxonomicNameLabel box="[734,825,1419,1444]" pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
is
|
||
<taxonomicName authority="Pinseel, Vanormelingen, P. B. Hamilton & Van de Vijver" authorityName="Pinseel, Vanormelingen, P. B. Hamilton & Van de Vijver" authorityYear="2017" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="digitatum">
|
||
<emphasis box="[869,1160,1418,1444]" italics="true" pageId="15" pageNumber="202">Achnanthidium digitatum</emphasis>
|
||
Pinseel, Vanormelingen, P.B.Hamilton & Van de Vijver
|
||
</taxonomicName>
|
||
(in
|
||
<bibRefCitation author="Pinseel, E. & Vanormelingen, P. & Hamilton, P. B. & Vyverman, W. & Van de Vijver, B. & Kopalova, K." box="[520,787,1454,1480]" pageId="15" pageNumber="202" pagination="264 - 280" refId="ref23948" refString="Pinseel, E., Vanormelingen, P., Hamilton, P. B., Vyverman, W., Van de Vijver, B. & Kopalova, K. (2017) Molecular and morphological characterization of the Achnanthidium minutissimum complex (Bacillariophyta) in Petuniabukta (Spitsbergen, High Arctic) including the description of A. digitatum sp. nov. European Journal of Phycology 52 (3): 264 - 280. https: // doi. org / 10.1080 / 09670262.2017.1283540" type="journal article" year="2017">
|
||
Pinseel
|
||
<emphasis box="[607,663,1454,1480]" italics="true" pageId="15" pageNumber="202">et al.</emphasis>
|
||
2017: 271
|
||
</bibRefCitation>
|
||
). However,
|
||
<taxonomicName authorityName="Pinseel, Vanormelingen, P. B. Hamilton & Van de Vijver" authorityYear="2017" box="[921,1059,1454,1481]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="digitatum">
|
||
<emphasis box="[921,1059,1454,1481]" italics="true" pageId="15" pageNumber="202">A. digitatum</emphasis>
|
||
</taxonomicName>
|
||
has smaller, narrower valves and a higher stria density (8.6–19.1 μm long, 1.8–2.3 μm wide, 31–36 striae in 10 µm,
|
||
<bibRefCitation author="Pinseel, E. & Vanormelingen, P. & Hamilton, P. B. & Vyverman, W. & Van de Vijver, B. & Kopalova, K." box="[1037,1247,1490,1516]" pageId="15" pageNumber="202" pagination="264 - 280" refId="ref23948" refString="Pinseel, E., Vanormelingen, P., Hamilton, P. B., Vyverman, W., Van de Vijver, B. & Kopalova, K. (2017) Molecular and morphological characterization of the Achnanthidium minutissimum complex (Bacillariophyta) in Petuniabukta (Spitsbergen, High Arctic) including the description of A. digitatum sp. nov. European Journal of Phycology 52 (3): 264 - 280. https: // doi. org / 10.1080 / 09670262.2017.1283540" type="journal article" year="2017">
|
||
Pinseel
|
||
<emphasis box="[1124,1180,1490,1516]" italics="true" pageId="15" pageNumber="202">et al.</emphasis>
|
||
2017
|
||
</bibRefCitation>
|
||
). Additionally, the valves of
|
||
<taxonomicName authorityName="Pinseel, Vanormelingen, P. B. Hamilton & Van de Vijver" authorityYear="2017" box="[243,379,1526,1553]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="digitatum">
|
||
<emphasis box="[243,379,1526,1553]" italics="true" pageId="15" pageNumber="202">A. digitatum</emphasis>
|
||
</taxonomicName>
|
||
are more linear, with margins almost parallel, and the striae are mostly composed of two areolae, an observation that is different from the population described here.
|
||
</paragraph>
|
||
<paragraph blockId="15.[136,1452,158,1985]" pageId="15" pageNumber="202">
|
||
In our study area,
|
||
<emphasis box="[398,696,1599,1625]" italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[398,602,1599,1625]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">A. parvicapitatum</taxonomicName>
|
||
<taxonomicNameLabel box="[610,696,1599,1624]" pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
co-occurred with two taxa that are sometimes difficult to separate using LM:
|
||
<emphasis box="[267,524,1634,1661]" italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[267,425,1634,1661]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">A. brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[435,524,1635,1660]" pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
and
|
||
<taxonomicName box="[584,815,1635,1661]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="tropicocatenatum">
|
||
<emphasis box="[584,815,1635,1661]" italics="true" pageId="15" pageNumber="202">A. tropicocatenatum</emphasis>
|
||
</taxonomicName>
|
||
. In general, smaller specimens are difficult to discern, however,
|
||
<emphasis box="[244,535,1671,1697]" italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[244,445,1671,1697]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">A. parvicapitatum</taxonomicName>
|
||
<taxonomicNameLabel box="[451,535,1671,1696]" pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
is usually slender and has less lanceolate valve margins than
|
||
<emphasis box="[1210,1452,1670,1697]" italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[1210,1363,1670,1697]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="brasiliense" status="sp. nov.">A. brasiliense</taxonomicName>
|
||
<taxonomicNameLabel box="[1368,1452,1671,1696]" pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
They also have slightly distinct apices, while the latter taxon presents more rostrate than subcapitate apices. Concerning
|
||
<taxonomicName box="[136,365,1743,1769]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="tropicocatenatum">
|
||
<emphasis box="[136,365,1743,1769]" italics="true" pageId="15" pageNumber="202">A. tropicocatenatum</emphasis>
|
||
</taxonomicName>
|
||
, it is smaller and presents visibly inflated valves in the median portion. The girdle view is also slightly arched, but the apices in
|
||
<taxonomicName box="[505,734,1779,1805]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="tropicocatenatum">
|
||
<emphasis box="[505,734,1779,1805]" italics="true" pageId="15" pageNumber="202">A. tropicocatenatum</emphasis>
|
||
</taxonomicName>
|
||
are more strongly and sharply recurved to the rapheless valve.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="15" pageNumber="202" type="distribution">
|
||
<paragraph blockId="15.[136,1452,158,1985]" pageId="15" pageNumber="202">
|
||
<emphasis bold="true" box="[189,707,1814,1840]" pageId="15" pageNumber="202">Distribution and ecological information:—</emphasis>
|
||
<emphasis box="[707,1156,1814,1840]" italics="true" pageId="15" pageNumber="202">
|
||
<taxonomicName authority="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo, 2022" authorityName="Costa & Wetzel & Maquardt & Zanon & Ector & Bicudo" authorityYear="2022" box="[707,1059,1814,1840]" class="Bacillariophyceae" family="Achnanthidiaceae" genus="Achnanthidium" higherTaxonomySource="GBIF" kingdom="Chromista" order="Achnanthales" pageId="15" pageNumber="202" phylum="Bacillariophyta" rank="species" species="parvicapitatum" status="sp. nov.">Achnanthidium parvicapitatum</taxonomicName>
|
||
<taxonomicNameLabel box="[1069,1156,1815,1840]" pageId="15" pageNumber="202" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
was distributed in all the habitats, occurring in 20 % of the counted samples (highest abundance: 36 % in SP-428935). In all the communities, the species showed ecological preferences for slightly acid (pH optimum of 6.6–6.8), low to medium cond. (optimum of 56–74 μS∙
|
||
<superScript attach="right" box="[280,330,1922,1948]" fontSize="6" pageId="15" pageNumber="202">cm-1</superScript>
|
||
), and oligo- to mesotrophic water conditions (TP optimum of 14.1–22.5 μg∙L-
|
||
<superScript attach="right" box="[1215,1222,1922,1936]" fontSize="6" pageId="15" pageNumber="202">1</superScript>
|
||
and TN optimum of 321.4–468.2 μg∙L-
|
||
<superScript attach="right" box="[343,350,1958,1972]" fontSize="6" pageId="15" pageNumber="202">1</superScript>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |