119 lines
13 KiB
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119 lines
13 KiB
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<document id="62096AE5EC320FB0E4715942DBC4815E" ENCODING="UTF-8" ID-GBIF-Dataset="fcec80e1-41a0-4a5e-9a6b-db36694b011e" ModsDocID="z01072p027" checkinTime="1247053673427" checkinUser="thomas" docAuthor="M. E. Anderson, D. L. Stein & H. W. Detrich" docDate="2005" docId="6599BCBF70A5C6E9BF53B95DD70C5746" docLanguage="en" docName="2005_Anderson_Stein_Detrich_gg1.xml" docOrigin="Zootaxa 1072" docSource="http://www.zoobank.org/urn:lsid:zoobank.org:pub:394228F5-C326-482F-876B-58BF0C84CA19" docTitle="Sebastes sp." docType="treatment" docVersion="12" lastPageNumber="32" masterDocId="41DDF31C84FABB9A145218519758A963" masterDocTitle="Additions to the ichthyofauna of the Tristan da Cunha Group, South Atlantic Ocean." masterLastPageNumber="33" masterPageNumber="27" pageNumber="30" updateTime="1701314230862" updateUser="plazi">
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<mods:titleInfo id="5007FDF0272566D22957BF2B6818E8E4">
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<mods:title id="F3DE36C098311E560AA1A5B8EDEEB6C8">Additions to the ichthyofauna of the Tristan da Cunha Group, South Atlantic Ocean.</mods:title>
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</mods:titleInfo>
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<mods:name id="D0582AFB0872755ECBCE2067B71CA360" type="personal">
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<mods:namePart id="D42F7C52304806DBEB10D49F467E0563">M. E. Anderson</mods:namePart>
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<mods:name id="04436EAB7F638988E975122271F5E497" type="personal">
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</mods:role>
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<mods:namePart id="3054F1345A64481181C7C0F6E74C3767">D. L. Stein</mods:namePart>
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</mods:name>
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<mods:name id="91C1C872D71F6A8E442965B8B417A6AA" type="personal">
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</mods:role>
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<mods:namePart id="80EDF5DEEFC296F54BD88CF793D2FF22">H. W. Detrich</mods:namePart>
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</mods:name>
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<mods:typeOfResource id="C343EB4B8AC2A115D66A7E2568ECA5DC">text</mods:typeOfResource>
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<mods:title id="C7542B2EA4AA9843A9EEC63CF3167032">Zootaxa</mods:title>
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<mods:part id="077D0D00E6CD0C30FD9F185992C292D4">
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<mods:date id="51A6BC01D1AFA0C6768C26C8C372A414">2005</mods:date>
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<mods:detail id="BA4B158ED5F57206A3F8BDDFC582891C" type="volume">
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<mods:number id="6C1294F2B9366F15F3E1E6EF4A869DBC">1072</mods:number>
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<mods:url id="593D59FD3427D0C0F6F06F1AB9088892">http://www.zoobank.org/urn:lsid:zoobank.org:pub:394228F5-C326-482F-876B-58BF0C84CA19</mods:url>
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</mods:location>
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<mods:classification id="1EDF5C7311F626831C3C0A4FBE003F37">journal article</mods:classification>
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<mods:identifier id="BFD7AB560EDBA41171EED99357DFE00E" type="Plazi-Custom">z01072p027</mods:identifier>
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<mods:identifier id="1433AE042039CC13CB0DF7EFA00030E5" type="ZooBank">394228F5-C326-482F-876B-58BF0C84CA19</mods:identifier>
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<treatment id="6599BCBF70A5C6E9BF53B95DD70C5746" ID-DOI="http://doi.org/10.5281/zenodo.6265833" ID-GBIF-Taxon="100121511" ID-Zenodo-Dep="6265833" LSID="urn:lsid:plazi:treatment:6599BCBF70A5C6E9BF53B95DD70C5746" httpUri="http://treatment.plazi.org/id/6599BCBF70A5C6E9BF53B95DD70C5746" lastPageNumber="32" pageNumber="30">
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<subSubSection id="2B6C8E0488ECF2A74F5A842AA385C0A5" type="nomenclature">
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<paragraph id="5EE80C943E8A994BD426085EB5D0C79A" pageNumber="30">
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<taxonomicName id="CD5EBA60F1E00C35DECCB2FB66331048" ID-CoL="63SJT" ID-ENA="34820" LSID-ZBK="urn:lsid:zoobank.org:act:FD0FC645-7D00-4AA7-A41A-403FA9CCB62C" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Sebastes Cuvier 1829:166" order="Scorpaeniformes" pageNumber="30" phylum="Chordata" rank="genus">Sebastes sp.</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="6A0E8699C4349B10196B2544725C06A4" type="description">
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<paragraph id="F17D383FAEECA2EC87E0007CE626EFD8" pageNumber="30">(Fig. 2)</paragraph>
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</subSubSection>
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<subSubSection id="51D2CF4C2C12DA42AA0B58C3FA1C711D" type="discussion">
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<paragraph id="2130CD874922DAD1E88EE020E0C6ACE9" pageNumber="30">
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A single juvenile rockfish was obtained from lobstermen by Mr. James Glass at Edinburgh and donated to us for description. It differs remarkably from the only known species at Tristan,
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<taxonomicName id="AB2397F93D112A6AF5111AA1BBB8578B" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="30" phylum="Chordata" rank="species" species="capensis">Sebastes capensis (Gmelin)</taxonomicName>
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, by its rusty red colour without a trace of white blotches on the dorsum typical of the large subgenus
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<taxonomicName id="5DFE6207DAA04397070B2CAF3163642A" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="30" phylum="Chordata" rank="subGenus" subGenus="Sebastomus">Sebastomus Gill</taxonomicName>
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, and its lack of supraocular spines.
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</paragraph>
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<paragraph id="A14E533277F35F2C1E1314785CAC2B22" pageNumber="31">
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Rocha-Olivares et al. (1999) clarified the systematics of southern hemisphere
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<taxonomicName id="5E43D8782463FFBDB2B05F860F472ACC" LSID-ZBK="urn:lsid:zoobank.org:act:FD0FC645-7D00-4AA7-A41A-403FA9CCB62C" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Sebastes Cuvier 1829:166" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="genus">Sebastes</taxonomicName>
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using mitochondrial DNA sequence variation. They concluded that
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<taxonomicName id="C32B525B45A17FED7EADAD779FD4C3A5" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="capensis">S. capensis</taxonomicName>
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was widespread across the South Atlantic with an unsampled clade in the southeastern Pacific where it overlaps the range of
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<taxonomicName id="0AE39086F51424B445F490D8BCC590DE" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="oculatus">S. oculatus</taxonomicName>
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. Both these species are clearly members of subgenus
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<taxonomicName id="5155CC24B67C7474C8ED9F26FD023E4B" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="subGenus" subGenus="Sebastomus">Sebastomus</taxonomicName>
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. Almost all juvenile specimens of
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<taxonomicName id="BDF911CA60DFD401495CC0F12751FCB6" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="capensis">S. capensis</taxonomicName>
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from Tristan known to date have been more orangish than our specimen, with the white blotches and with supraocular spines.
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</paragraph>
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<paragraph id="8D564C1152AFAA8A4ACA1327698CF59D" pageNumber="31">
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Mr John Hyde, Scripps Institution of Oceanography, La Jolla, California, has sequenced tissue samples of this specimen for the cytochrome b gene. He reports that out of the 1141 base pairs for the gene, 1138 match with 10
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<taxonomicName id="C28C5FD04A418D5D776BEA7AF88D5F4B" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="capensis">S. capensis</taxonomicName>
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from South Africa which he puts well within normal intraspecific variation in
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<taxonomicName id="89DD0AF87B7F349ED290C9F7D1E5125C" LSID-ZBK="urn:lsid:zoobank.org:act:FD0FC645-7D00-4AA7-A41A-403FA9CCB62C" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Sebastes Cuvier 1829:166" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="genus">Sebastes</taxonomicName>
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and less than the difference between
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<taxonomicName id="95407718BBDF39D5A1955DB5985BC19E" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="capensis">S. capensis</taxonomicName>
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and
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<taxonomicName id="FBEFB084DDA1E168B457CAB1C4263560" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="oculatus">S. oculatus</taxonomicName>
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. Three unique nucleotide differences were found in the red specimen, suggesting along with the morphological differences, that it may represent an undescribed, cryptic species. However, Mr. Hyde reports that three nucleotide differences from one fish, with the small sample size of
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<taxonomicName id="6606731B93526FF3F631E4C69FF32B19" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="capensis">S. capensis</taxonomicName>
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, make it difficult to consider that our specimen represents a distinct species. Also, the nucleotide differences would not cause a change in the protein encoded by the gene. More specimens for confirmation are sought.
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</paragraph>
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<paragraph id="8D18FDB9748ACC8970741BD0CBA8BA7C" pageNumber="31">
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Dr. Paul Tyler, Darwin Project, U. K., sent the first author several underwater photographs of
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<taxonomicName id="5AD2DD47FCFD70D8276E30F03DF160EF" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="capensis">Sebastes capensis</taxonomicName>
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and
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<taxonomicName id="2E9EE0729EC1E82D7AE904F3FD8F145F" family="Sebastidae" genus="Helicolenus" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="mouchezi">Helicolenus mouchezi</taxonomicName>
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from Tristan taken during dives in late 2004 at depths of 15-25 m. One (Fig. 3) is of a red individual with poorly developed dorsal blotches and with small spots reminiscent of the northeastern Pacific
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<taxonomicName id="1349A50640E05E63F33E10DB0B69FE81" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="constellatus">S. constellatus Jordan and Gilbert</taxonomicName>
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. Thus, it appears that
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<taxonomicName id="EDB26FE9C330FFAFA3D959983663C174" family="Sebastidae" genus="Sebastes" higherTaxonomySource="CoL" kingdom="Animalia" order="Scorpaeniformes" pageNumber="31" phylum="Chordata" rank="species" species="capensis">S. capensis</taxonomicName>
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at Tristan may exist as several morphotypes, possibly including the odd specimen in Fig. 2.
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</paragraph>
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</subSubSection>
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<subSubSection id="ED7640BF60662A538C50EFD3D1F866C2" type="description">
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<paragraph id="C8A652310777B337A0F74CE8889B59CB" pageNumber="31">Counts: Vertebrae 8 + 17 = 25; D XIII, 14; A III, 6; P 18; C (branched rays) 12; gill rakers 8 + 1 + 17 + 3 pads; lateral line pores 38; pyloric caeca 9; vertical scale rows above lateral line 66; scales between lateral line and D origin 12. Head spines present: nasal, preocular, postocular, tympanic, parietal, supracleithral and cleithral. Head spines absent: supraocular, coronal and nuchal. Proportions in percent SL: head length 37.7; snout length 5.9; orbit diameter 11.7; interorbital width 5.1; lacrimal width 4.6; body depth 33.0; predorsal length 29.2; preanal length 69.0; prepelvic length 38.5; caudal peduncle depth 9.1; pectoral fin length 25.2; pelvic fin length 20.4; length 4th D spine 14.7; length 2nd A spine 18.8; spinous D base 35.2; rayed D base 22.7; A base 13.8. Both jaws and branchiostegal membranes naked. Interorbital concave. Symphyseal knob weak, ventral margin evenly rounded. No dentigerous premaxillary knobs. Body colour uniformly dark rusty red without white blotches, ventral part of abdomen whitish; fin membranes reddishorange except pectoral fin which is more red; irregular, black humeral spot present.</paragraph>
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</subSubSection>
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<subSubSection id="8B7B77D50538BE6563FC1E08C2D80E92" type="materials_examined">
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<paragraph id="05170ABF9740EC6237FF4E725C3735F0" pageNumber="32">
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Material:
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<materialsCitation id="BE29FA216F86FCBD910088BA71C81944" ID-GBIF-Occurrence="923932629" country="Great Britain" stateProvince="Tristan Da Cunha">
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<collectionCode id="1AEE564C2F9473FA77EBF597809E0FFE" collectionName="SAIAB">SAIAB</collectionCode>
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74965 (male, 147 mm SL);
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<collectingRegion id="3AFBC6703FEF82D20ACFCC685F055637">Tristan da Cunha</collectingRegion>
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off Edinburgh; lobster trap; 50-70 m; 3-
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<date id="E7C9A469B0A13EF3337ED34DA373CF9D" day="06" month="07" value="2004-07-06" year="2004">6 July 2004</date>
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; J. Glass.
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</materialsCitation>
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</paragraph>
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</subSubSection>
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</treatment>
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</document>
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