199 lines
26 KiB
XML
199 lines
26 KiB
XML
<document id="42944A07C8C75E59A657E5E19D93DA8C" ID-CLB-Dataset="63548" ID-DOI="10.5281/zenodo.6610922" ID-GBIF-Dataset="7c540c0e-42b4-40f1-982f-0ef4d0c28e77" ID-ISBN="978-84-96553-93-4" ID-Zenodo-Dep="6610922" IM.metadata_requiresApprovalFor="plazi" IM.taxonomicNames_requiresApprovalFor="plazi" checkinTime="1654195746118" checkinUser="diego" docAuthor="Russell A. Mittermeier & Don E. Wilson" docDate="2014" docId="BD4CCC617621FFE9FF7BFA9AE151F7EB" docLanguage="en" docName="hbmw_4_Delphinidae_0410.pdf.imf" docOrigin="Handbook of the Mammals of the World – Volume 4 Sea Mammals, Barcelona: Lynx Edicions" docTitle="Delphinus capensis Gray 1828" docType="treatment" docVersion="10" lastPageNumber="502" masterDocId="4175B419762FFFE7FFAAFFFEE608FFEC" masterDocTitle="Delphinidae" masterLastPageNumber="526" masterPageNumber="410" pageNumber="502" updateTime="1699338792597" updateUser="ExternalLinkService">
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<mods:mods id="B4D43983FC65D91CDCBC22CC66C72BF8" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="C9C15BE2EDFF4E881E546ACD8C3A95BE">
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<mods:title id="E0506B5E6C375E34C70B502A7F5EC511">Delphinidae</mods:title>
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<mods:namePart id="EC0C9B15D86EB05362E65953F5408827">Russell A. Mittermeier</mods:namePart>
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<mods:roleTerm id="91C004048B9A3EE775B264172CBC36BC">Author</mods:roleTerm>
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<mods:namePart id="BACB99F797EA20100B2DD2BB7D13B8DC">Don E. Wilson</mods:namePart>
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<mods:dateIssued id="BF6024E54EDE48E71B70F63ACF972F91">2014</mods:dateIssued>
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<mods:dateOther id="F93D5579F03E0B65A62018FEEAF56A1D" type="pubDate">2014-07-31</mods:dateOther>
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<mods:publisher id="6E46F47C3638DDF2FC1F186D61A7E48C">Lynx Edicions</mods:publisher>
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<mods:place id="AD8617449C6CCA87E285206E30EAECF4">
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<mods:placeTerm id="E17EF95BDAA27FE256CC46390D05E996">Barcelona</mods:placeTerm>
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<mods:titleInfo id="3058F01C54A711E0C2FDDA3C7C98F26F">
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<mods:title id="CD89CCEB1F0DABBC366800239814415A">Handbook of the Mammals of the World – Volume 4 Sea Mammals</mods:title>
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<mods:part id="DBBF128BCA667B64ABD5615BE609C889">
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<mods:identifier id="8E6AD78D76FEC765238EFA33A9D009EC" type="DOI">10.5281/zenodo.6610922</mods:identifier>
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<mods:identifier id="CA5A04A210DFCB9C86EEFA93D54191A6" type="ISBN">978-84-96553-93-4</mods:identifier>
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<treatment id="BD4CCC617621FFE9FF7BFA9AE151F7EB" ID-DOI="http://doi.org/10.5281/zenodo.6608642" ID-GBIF-Taxon="195730925" ID-Zenodo-Dep="6608642" LSID="urn:lsid:plazi:treatment:BD4CCC617621FFE9FF7BFA9AE151F7EB" httpUri="http://treatment.plazi.org/id/BD4CCC617621FFE9FF7BFA9AE151F7EB" lastPageNumber="502" pageId="14" pageNumber="502">
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<subSubSection id="7DFF2EFC7621FFE9FF7BFA9AE700FA7E" box="[209,264,1380,1426]" pageId="14" pageNumber="502" type="multiple">
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<paragraph id="355A7D777621FFE9FF7BFA9AE700FA7E" blockId="14.[204,1363,1380,1508]" box="[209,264,1380,1426]" pageId="14" pageNumber="502">
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<heading id="6E12CA1B7621FFE9FF7BFA9AE700FA7E" box="[209,264,1380,1426]" pageId="14" pageNumber="502">
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<figureCitation id="ADDE61F27621FFE9FF7BFA9AE700FA7E" box="[209,264,1380,1426]" captionStart="On" captionStartId="13.[102,132,3415,3440]" captionTargetBox="[12,2767,13,3655]" captionTargetPageId="9" captionText="On following pages: 11. Long-beaked Common Dolphin (Delphinus capensis); 12. Fraser's Dolphin (Lagenodelphis hosel); 13. Tucuxi (Sotalia fluviatilis); 14. Guiana Dolphin (Sotalia guianensis); 15. Indo-Pacific Humpback Dolphin (Sousa chinensis); 16. Atlantic Humpback Dolphin (Sousa teuszii)." figureDoi="http://doi.org/10.5281/zenodo.6611003" httpUri="https://zenodo.org/record/6611003/files/figure.png" pageId="14" pageNumber="502">11.</figureCitation>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="7DFF2EFC7621FFE9FEB3FA9AE5B1FA7E" box="[281,953,1380,1426]" pageId="14" pageNumber="502" type="vernacular_names">
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<paragraph id="355A7D777621FFE9FEB3FA9AE5B1FA7E" blockId="14.[204,1363,1380,1508]" box="[281,953,1380,1426]" pageId="14" pageNumber="502">
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<heading id="6E12CA1B7621FFE9FEB3FA9AE5B1FA7E" box="[281,953,1380,1426]" pageId="14" pageNumber="502">
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<vernacularName id="BBE60D597621FFE9FEB3FA9AE5B1FA7E" box="[281,953,1380,1426]" pageId="14" pageNumber="502">Long-beaked Common Dolphin</vernacularName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="7DFF2EFC7621FFE9FC54FA9AE35BFA7E" box="[1022,1363,1380,1426]" pageId="14" pageNumber="502" type="nomenclature">
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<paragraph id="355A7D777621FFE9FC54FA9AE35BFA7E" blockId="14.[204,1363,1380,1508]" box="[1022,1363,1380,1426]" pageId="14" pageNumber="502">
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<heading id="6E12CA1B7621FFE9FC54FA9AE35BFA7E" box="[1022,1363,1380,1426]" pageId="14" pageNumber="502">
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<taxonomicName id="F2E506F47621FFE9FC54FA9AE35BFA7E" ID-CoL="34JWC" authorityName="Gray" authorityYear="1828" box="[1022,1363,1380,1426]" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="species" species="capensis">
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<emphasis id="0791A1657621FFE9FC54FA9AE35BFA7E" box="[1022,1363,1380,1426]" italics="true" pageId="14" pageNumber="502">Delphinus capensis</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="7DFF2EFC7621FFE9FF64FA5AE359FA0D" pageId="14" pageNumber="502" type="vernacular_names">
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<paragraph id="355A7D777621FFE9FF64FA5AE255FA55" blockId="14.[204,1363,1380,1508]" box="[206,1117,1444,1465]" pageId="14" pageNumber="502">
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<heading id="6E12CA1B7621FFE9FF64FA5AE255FA55" box="[206,1117,1444,1465]" pageId="14" pageNumber="502">
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<emphasis id="0791A1657621FFE9FF64FA5AE711FA55" bold="true" box="[206,281,1444,1465]" pageId="14" pageNumber="502">French:</emphasis>
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<vernacularName id="BBE60D597621FFE9FE89FA5AE7C9FA55" box="[291,449,1444,1465]" pageId="14" pageNumber="502">Dauphin du Cap</vernacularName>
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/
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<emphasis id="0791A1657621FFE9FE7CFA5AE438FA55" bold="true" box="[470,560,1444,1465]" pageId="14" pageNumber="502">German:</emphasis>
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<vernacularName id="BBE60D597621FFE9FD90FA5AE501FA55" box="[570,777,1444,1465]" pageId="14" pageNumber="502">Langschnauzendelfin</vernacularName>
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/
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<emphasis id="0791A1657621FFE9FCB5FA5AE572FA55" bold="true" box="[799,890,1444,1465]" pageId="14" pageNumber="502">Spanish:</emphasis>
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<vernacularName id="BBE60D597621FFE9FC2EFA5AE255FA55" box="[900,1117,1444,1465]" pageId="14" pageNumber="502">Delfin de hocico largo</vernacularName>
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</heading>
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</paragraph>
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<paragraph id="355A7D777621FFE9FF64FA32E359FA0D" blockId="14.[204,1363,1380,1508]" box="[206,1361,1484,1505]" pageId="14" pageNumber="502">
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<heading id="6E12CA1B7621FFE9FF64FA32E359FA0D" box="[206,1361,1484,1505]" pageId="14" pageNumber="502">
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<emphasis id="0791A1657621FFE9FF64FA32E7CCFA0D" bold="true" box="[206,452,1484,1505]" pageId="14" pageNumber="502">Other common names:</emphasis>
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<vernacularName id="BBE60D597621FFE9FE64FA32E45DFA0D" box="[462,597,1484,1505]" pageId="14" pageNumber="502">Cape Dolphin</vernacularName>
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,
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<vernacularName id="BBE60D597621FFE9FDC9FA32E359FA0D" box="[611,1361,1484,1505]" pageId="14" pageNumber="502">Long-beaked Saddleback Dolphin; Indo-Pacific Common Dolphin (tropicalis)</vernacularName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="7DFF2EFC7621FFE9FC91F9E8E376F9C3" box="[827,1406,1558,1583]" pageId="14" pageNumber="502" type="reference_group">
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<paragraph id="355A7D777621FFE9FC91F9E8E376F9C3" blockId="14.[827,1410,1558,1977]" box="[827,1406,1558,1583]" pageId="14" pageNumber="502">
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<emphasis id="0791A1657621FFE9FC91F9E8E5DEF9C3" bold="true" box="[827,982,1558,1583]" pageId="14" pageNumber="502">Taxonomy.</emphasis>
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<taxonomicName id="F2E506F47621FFE9FC4EF9E8E372F9C3" ID-CoL="34JWC" authority="Gray, 1828" authorityName="Gray" authorityYear="1828" box="[996,1402,1558,1583]" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="species" species="capensis">Delphinus capensis Gray, 1828</taxonomicName>
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,
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</paragraph>
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</subSubSection>
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<subSubSection id="7DFF2EFC7621FFE9FC96F9CBE256F9BA" box="[828,1118,1589,1622]" pageId="14" pageNumber="502" type="materials_examined">
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<paragraph id="355A7D777621FFE9FC96F9CBE256F9BA" blockId="14.[827,1410,1558,1977]" box="[828,1118,1589,1622]" pageId="14" pageNumber="502">
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<materialsCitation id="858D772A7621FFE9FC96F9CBE256F9BA" ID-GBIF-Occurrence="3802895330" box="[828,1118,1589,1622]" pageId="14" pageNumber="502">Cape of Good Hope.</materialsCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="7DFF2EFC7621FFE9FC96F99EE4C8F7BB" pageId="14" pageNumber="502" type="discussion">
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<paragraph id="355A7D777621FFE9FC96F99EE4C8F7BB" blockId="14.[827,1410,1558,1977]" lastBlockId="14.[205,1413,1983,3473]" pageId="14" pageNumber="502">
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Only a single species of common dolphin was recognized before 1994 when it was splitinto
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<taxonomicName id="F2E506F47621FFE9FC15F955E236F920" authorityName="Linnaeus" authorityYear="1758" box="[959,1086,1707,1740]" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="species" species="delphis">D. delphis</taxonomicName>
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and
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<taxonomicName id="F2E506F47621FFE9FB29F955E31AF920" authorityName="Gray" authorityYear="1828" box="[1155,1298,1707,1740]" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="species" species="capensis">D. capensis</taxonomicName>
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. Taxonomy of
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<taxonomicName id="F2E506F47621FFE9FC0BF92DE227F918" authorityName="Gray" authorityYear="1828" box="[929,1071,1747,1780]" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="species" species="capensis">D. capensis</taxonomicName>
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is uncertain. Difficulties in distinguishing
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<taxonomicName id="F2E506F47621FFE9FB93F900E2C4F8F7" authorityName="Gray" authorityYear="1828" box="[1081,1228,1790,1819]" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="species" species="capensis">D. capensis</taxonomicName>
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from
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<taxonomicName id="F2E506F47621FFE9FA81F900E578F8AE" authorityName="Linnaeus" authorityYear="1758" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="species" species="delphis">D. delphis</taxonomicName>
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in regions where they are sympatric and more recent genetic work have called into question monophyly of
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<taxonomicName id="F2E506F47621FFE9FB4EF88EE373F87D" authorityName="Gray" authorityYear="1828" box="[1252,1403,1904,1937]" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="species" species="capensis">D. capensis</taxonomicName>
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, which may have arisen independently in several oceans. The genus
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<taxonomicName id="F2E506F47621FFE9FD97F841E4B7F80C" authorityName="Linnaeus" authorityYear="1758" box="[573,703,1983,2016]" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="genus">Delphinus</taxonomicName>
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may thus contain more than two species. A distinct geographical subspecies, the “Indo-Pacific Common Dolphin” (D. c. tropicalis), with a very long beak occurs in the Indo-Pacific Ocean; it was once classified as a separate species. Two subspecies recognized.
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</paragraph>
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</subSubSection>
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<subSubSection id="7DFF2EFC7621FFE9FF64F7A3E2AFF6AF" pageId="14" pageNumber="502" type="distribution">
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<caption id="619A2DFF7621FFE9FF64F7A3E2AFF6AF" ID-DOI="http://doi.org/10.5281/zenodo.6610950" ID-Zenodo-Dep="6610950" httpUri="https://zenodo.org/record/6610950/files/figure.png" inLine="true" pageId="14" pageNumber="502" targetBox="[208,798,1556,1970]" targetPageId="14">
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<paragraph id="355A7D777621FFE9FF64F7A3E4F5F719" blockId="14.[205,1413,1983,3473]" pageId="14" pageNumber="502">
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<emphasis id="0791A1657621FFE9FF64F7A3E456F792" bold="true" box="[206,606,2141,2174]" pageId="14" pageNumber="502">Subspecies and Distribution.</emphasis>
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<taxonomicName id="F2E506F47621FFE9FF64F77AE4F5F719" authority="Gray, 1828" authorityName="Gray" authorityYear="1828" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="subSpecies" species="capensis" subSpecies="capensis">D.c.capensisGray,1828—distinctpopulationsalongWcoastofNorthandSouthAmerica,theEcoastofSouthAmerica,WAfrica,andtheWPacificOceanfromSJapanandKoreatoNTaiwanandinNewZealand.</taxonomicName>
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</paragraph>
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<paragraph id="355A7D777621FFE9FF64F6FDE2AFF6AF" blockId="14.[205,1413,1983,3473]" pageId="14" pageNumber="502">
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<taxonomicName id="F2E506F47621FFE9FF64F6FDE45BF6F0" authority="van Bree, 1971" authorityName="van Bree" authorityYear="1971" box="[206,595,2307,2332]" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="subSpecies" species="capensis" subSpecies="tropicalis">D. c. tropicalis van Bree, 1971</taxonomicName>
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— coastal Indo-Pacific Ocean from E & S Africa to S China and W Taiwan, including Red Sea, Persian Gulf, and Gulf of Thailand.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection id="7DFF2EFC7621FFE9FF64F6B3E2A7F40C" pageId="14" pageNumber="502" type="description">
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<paragraph id="355A7D777621FFE9FF64F6B3E2A7F40C" blockId="14.[205,1413,1983,3473]" pageId="14" pageNumber="502">
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<emphasis id="0791A1657621FFE9FF64F6B3E7CDF686" bold="true" box="[206,453,2381,2410]" pageId="14" pageNumber="502">Descriptive notes.</emphasis>
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Total length 202-260 cm (males) and 193-222 cm (females); weight up to 235 kg. The Long-beaked Common Dolphin is similar in appearance to the Short-beaked Common Dolphin (
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<taxonomicName id="F2E506F47621FFE9FD00F666E538F655" authorityName="Linnaeus" authorityYear="1758" box="[682,816,2456,2489]" class="Mammalia" family="Delphinidae" genus="Delphinus" kingdom="Animalia" order="Cetacea" pageId="14" pageNumber="502" phylum="Chordata" rank="species" species="delphis">D. delphis</taxonomicName>
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), but it has slightly more slender build and longer beak, and its melon slopesless steeply. Dorsal fin is moderately tall and falcate, with pointed tip, and flippers are small and slender,also with pointed tips. Some adult Long-beaked Common Dolphins,likely males, possess post-anal protrusion. Color pattern is similar to that of the Short-beaked Common Dolphin, with dark-gray dorsal surface, white belly, and hourglass pattern on flanks. Thoracic portion of hourglass tends to be darker and more muted than on the Short-beaked Common Dolphin. There is also distinct dark stripe running from flipper to anus—a feature that tends to be faint or absent in the Short-beaked Common Dolphin. More of beak is black on the Long-beaked Common Dolphin, and dark eye patches may be continuous with flipper-anus stripe. Dorsal fin and flippers tend to be dark, occasionally with faint pale central patches. The Indo-Pacific Common Dolphin has longer beak (9-4-9-7% of body length) than the nominate subspecies (6-:9-7-6% of body length), and as such,it also has a larger tooth count: 54-67 pairs in upperjaw and 52-64 in lowerjaw vs. 47-60 pairs in upper jaw and 48-57 in lower jaw for the nominate subspecies.
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</paragraph>
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</subSubSection>
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<subSubSection id="7DFF2EFC7621FFE9FF7AF418E40EF3BA" pageId="14" pageNumber="502" type="biology_ecology">
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<paragraph id="355A7D777621FFE9FF7AF418E40EF3BA" blockId="14.[205,1413,1983,3473]" pageId="14" pageNumber="502">
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<emphasis id="0791A1657621FFE9FF7AF418E736F3EB" bold="true" box="[208,318,3046,3079]" pageId="14" pageNumber="502">Habitat.</emphasis>
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Coastally distributed, usually within 180 km of shore, and preferring shallow, warm water less than 180 m deep, but not found around oceanic islands distant from continental mainland.
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</paragraph>
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</subSubSection>
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<subSubSection id="7DFF2EFC7621FFE9FF7AF3A2E5B7F27D" pageId="14" pageNumber="502" type="food_feeding">
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<paragraph id="355A7D777621FFE9FF7AF3A2E5B7F27D" blockId="14.[205,1413,1983,3473]" pageId="14" pageNumber="502">
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<emphasis id="0791A1657621FFE9FF7AF3A2E7D0F391" bold="true" box="[208,472,3164,3197]" pageId="14" pageNumber="502">Food and Feeding.</emphasis>
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Little is known about the diet of the LLong-beaked Common Dolphin, and available data comes from only a few populations. Off Brazil, it prefers cephalopods, but off southern California, Pacific American pilchard (
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<taxonomicName id="F2E506F47621FFE9FB07F355E326F320" authorityName="Hubbs" authorityYear="1929" box="[1197,1326,3243,3276]" class="Actinopterygii" family="Clupeidae" genus="Sardinops" kingdom="Animalia" order="Clupeiformes" pageId="14" pageNumber="502" phylum="Chordata" rank="genus">Sardinops</taxonomicName>
|
||
caerulea), northern anchovy (
|
||
<taxonomicName id="F2E506F47621FFE9FD88F324E4A9F31F" box="[546,673,3290,3315]" class="Actinopterygii" family="Engraulidae" genus="Engraulis" kingdom="Animalia" order="Clupeiformes" pageId="14" pageNumber="502" phylum="Chordata" rank="genus">Engraulis</taxonomicName>
|
||
mordax), Pacific saury (
|
||
<taxonomicName id="F2E506F47621FFE9FC47F324E254F31F" authorityName="T.N.Gill" authorityYear="1896" box="[1005,1116,3290,3315]" class="Actinopterygii" family="Scomberesocidae" genus="Cololabis" kingdom="Animalia" order="Beloniformes" pageId="14" pageNumber="502" phylum="Chordata" rank="genus">Cololabis</taxonomicName>
|
||
saira), Pacific bonito (
|
||
<taxonomicName id="F2E506F47621FFE9FF76F300E721F2F7" box="[220,297,3326,3355]" class="Actinopterygii" family="Scombridae" genus="Sarda" kingdom="Animalia" order="Perciformes" pageId="14" pageNumber="502" phylum="Chordata" rank="genus">Sarda</taxonomicName>
|
||
chiliensis), and California market squid (
|
||
<taxonomicName id="F2E506F47621FFE9FCF6F300E5E6F2F7" authorityName="Naef" authorityYear="1912" box="[860,1006,3326,3355]" class="Cephalopoda" family="Loliginidae" genus="Doryteuthis" kingdom="Animalia" order="Myopsida" pageId="14" pageNumber="502" phylum="Mollusca" rank="genus">Doryteuthis</taxonomicName>
|
||
opalescens) are preferred. Off South Africa, dominant prey includes South African pilchard (
|
||
<taxonomicName id="F2E506F47621FFE9FB9EF2DBE2BCF2AE" authorityName="Hubbs" authorityYear="1929" box="[1076,1204,3365,3394]" class="Actinopterygii" family="Clupeidae" genus="Sardinops" kingdom="Animalia" order="Clupeiformes" pageId="14" pageNumber="502" phylum="Chordata" rank="genus">Sardinops</taxonomicName>
|
||
sagax ocellatus) and South African anchovy (
|
||
<taxonomicName id="F2E506F47621FFE9FDC5F2B3E56FF286" authorityName="Gilchrist" authorityYear="1913" box="[623,871,3405,3434]" class="Actinopterygii" family="Engraulidae" genus="Engraulis" kingdom="Animalia" order="Clupeiformes" pageId="14" pageNumber="502" phylum="Chordata" rank="species" species="capensis">Engraulis capensis</taxonomicName>
|
||
). Cooperative herding of fish schools has been observed in the northern Gulf of California.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="7DFF2EFC7621FFE9FA6CFEE1E0D9FE32" pageId="14" pageNumber="502" type="breeding">
|
||
<paragraph id="355A7D777621FFE9FA6CFEE1E0D9FE32" blockId="14.[1476,2686,287,2057]" pageId="14" pageNumber="502">
|
||
<emphasis id="0791A1657621FFE9FA6CFEE1E045FEAC" bold="true" box="[1478,1613,287,320]" pageId="14" pageNumber="502">Breeding.</emphasis>
|
||
Very little known is known aboutlife history and reproductive biology of the Long-beaked Common Dolphin. Sexual maturity is thought to occur when individuals are ¢.200 cm in length. Because of its more tropical distribution, the LLong-beaked Common Dolphin likely has less breeding seasonality than does the Short-beaked Common Dolphin.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="7DFF2EFC7621FFE9FA6FFE1AEEF9FDB8" pageId="14" pageNumber="502" type="activity">
|
||
<paragraph id="355A7D777621FFE9FA6FFE1AEEF9FDB8" blockId="14.[1476,2686,287,2057]" pageId="14" pageNumber="502">
|
||
<emphasis id="0791A1657621FFE9FA6FFE1AE0BCFDE9" bold="true" box="[1477,1716,484,517]" pageId="14" pageNumber="502">Activity patterns.</emphasis>
|
||
Like the Short-beaked Common Dolphin, the L.ong-beaked Common Dolphin is also known to be aerially active in large groups, frequently breaching while traveling, and it is known to readily bow-ride vessels.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="7DFF2EFC7621FFE9FA6CFDA4EF07FCAC" pageId="14" pageNumber="502" type="biology_ecology">
|
||
<paragraph id="355A7D777621FFE9FA6CFDA4EF07FCAC" blockId="14.[1476,2686,287,2057]" pageId="14" pageNumber="502">
|
||
<emphasis id="0791A1657621FFE9FA6CFDA4EE91FD97" bold="true" box="[1478,2201,602,635]" pageId="14" pageNumber="502">Movements, Home range and Social organization.</emphasis>
|
||
Group sizes of the Long-beaked Common Dolphin are less than twelve to more than 1000 individuals. Social segregation by sex and age classes is suspected and thought to be similar to the Short-beaked Common Dolphin. Little is known about movements and home ranges of populations of Long-beaked Common Dolphins. In South African waters, LLong-beaked Common Dolphins are known to seasonally follow migrating sardines.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="7DFF2EFC7621FFE9FA6DFCB8E076F884" pageId="14" pageNumber="502" type="conservation">
|
||
<paragraph id="355A7D777621FFE9FA6DFCB8E076F884" blockId="14.[1476,2686,287,2057]" pageId="14" pageNumber="502">
|
||
<emphasis id="0791A1657621FFE9FA6DFCB8E139FC8B" bold="true" box="[1479,1841,838,871]" pageId="14" pageNumber="502">Status and Conservation.</emphasis>
|
||
CITES Appendix II. Classified as Data Deficient on The IUCN Red List. The Indo-Pacific Common Dolphin has not been assessed independently. There are currently no estimates of global abundance for the Long-beaked Common Dolphin, but there are several regional abundance estimates. There are ¢.55,000 individuals off Pacific Mexico, ¢.69,000 individuals in the Gulf of California, and ¢.15,000-20,000 individuals off South Africa. A recent abundance estimate for the Long-beaked Common Dolphin off California is 183,396 individuals—higher than previous estimates. The Long-beaked Common Dolphin is classified as Data Deficient due to unknown severity of direct and incidental catch off West Africa, East Asia, and South America; it is occasionally taken as direct catch. They are taken by harpoon off Margarita Island in eastern Venezuela and occasionally in Japanese drive fisheries. They are also taken opportunistically off north-eastern Taiwan and incidentally in Taiwanese oceanic driftnets. Observed lesions and scars on LLong-beaked Common Dolphins from bycatch indicate that there are violent interactions with fisheries off Peru. It is frequently caught in purse-seine fisheries there, although catch rates have diminished since 1994. They are only rarely caught incidentally in tuna purse-seine fisheries in the tropical Pacific Ocean and not to the same extent as the Short-beaked Common Dolphin. They are also occasionally caught in driftnet fisheries for broadbill swordfish (Xiphia gladius) and common thresher shark (Alopias vulpinus) off California and in gillnet, trawl, and purse-seine fisheries in Indian and Chinese waters. Marine pollution may also be a threat to the LLong-beaked Common Dolphin in some areas. High organochlorine concentrations (primarily DDT and PCBs) have been found in blubber of Long-beaked Common Dolphins caught in Brazilian waters. These contaminants likely come from heavily industrialized areas along the Brazilian coast. High concentrations of heavy metals, primarily zinc, cadmium, and mercury, have also been found in livers and kidneys of Long-beaked Common Dolphins in the Sea ofJapan off South Korea.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="7DFF2EFC7621FFE9FA63F885E151F7EB" pageId="14" pageNumber="502" type="bibRefCitation_list">
|
||
<paragraph id="355A7D777621FFE9FA63F885E151F7EB" blockId="14.[1476,2686,287,2057]" pageId="14" pageNumber="502">
|
||
<emphasis id="0791A1657621FFE9FA63F885E069F87C" bold="true" box="[1481,1633,1915,1936]" pageId="14" pageNumber="502">Bibliography.</emphasis>
|
||
Amaral et al. (2012), Carretta, Chivers & Perryman (2011), Carretta, Price et al. (2004), Hammond et al. (2008h), Heyning & Perrin (1994), Jefferson & Van Waerebeek (2002), Jefferson et al. (2008), Kajiwara et al. (2004), Kim Seong-Gil et al. (2011), Kingston & Rosel (2004), Natoli et al. (2006), Perrin (2009d), Santos et al. (2002), Van Bressem etal. (2006).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |