The taxonomic status of Rhabdolichops troscheli (Kaup, 1856), and speculations on gymnotiform evolution
Identifieur interne : 006381 ( Istex/Corpus ); précédent : 006380; suivant : 006382The taxonomic status of Rhabdolichops troscheli (Kaup, 1856), and speculations on gymnotiform evolution
Auteurs : Francisco Mago-Leccia ; Thomas M. ZaretSource :
- Environmental Biology of Fishes [ 0378-1909 ] ; 1978-12-01.
English descriptors
- KwdEn :
- Academic press, Branchial arches, Characiform, Characiform ancestors, Cyclopoid copepods, Dorsal view, Ecological studies, Eigenmannia, Eigenmannia virescens, Electric communication, Electric organs, Fish physiology, Food items, Generalized characiforms, Gill rakers, Gymnotiform, Gymnotiform fishes, Gymnotiforms, Large mouth, Light penetration, Morphological characteristics, Nocturnal habits, Prey location, Rhabdolichops, Rhabdolichops troscheli, Stomach contents, Troscheli, Venezuela, Virescens.
- Teeft :
- Academic press, Branchial arches, Characiform, Characiform ancestors, Cyclopoid copepods, Dorsal view, Ecological studies, Eigenmannia, Eigenmannia virescens, Electric communication, Electric organs, Fish physiology, Food items, Generalized characiforms, Gill rakers, Gymnotiform, Gymnotiform fishes, Gymnotiforms, Large mouth, Light penetration, Morphological characteristics, Nocturnal habits, Prey location, Rhabdolichops, Rhabdolichops troscheli, Stomach contents, Troscheli, Venezuela, Virescens.
Abstract
Synopsis: Anatomical and ecological studies of the gymnotiformRhabdolichops troscheli (Kaup 1856), one of the weakly electric fish of South America, indicate it to be unique among gymnotiforms in possessing certain characteristics found in characins. These include post-temporal fossae, well developed gillrakers, a planktivorous feeding mode, and diurnal feeding activity. We use these findings to speculate about the evolution of gymnotiform fishes, by assuming that these character states in this most primitive gymnotiform convey information about the group's evolutionary history. We suggest that the electric organs in this group of ostaryophysans have evolved primarily as a means of locating and capturing prey in river habitats of South America whose turbid waters result in low light penetration, ruling out visual sensing systems as an effective means of receiving information. Other aspects of morphology and behavior such as the absence or reduction of scales, and the nocturnal feeding activities characteristic of other gymnotiform, can be explained as consequences of food resource availability and predation pressures in these riverine environments.
Url:
DOI: 10.1007/BF00000530
Links to Exploration step
ISTEX:C8A0E44B812CF0CC5E4778C7E80BD5FC634AE7F9Le document en format XML
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These include post-temporal fossae, well developed gillrakers, a planktivorous feeding mode, and diurnal feeding activity. We use these findings to speculate about the evolution of gymnotiform fishes, by assuming that these character states in this most primitive gymnotiform convey information about the group's evolutionary history. We suggest that the electric organs in this group of ostaryophysans have evolved primarily as a means of locating and capturing prey in river habitats of South America whose turbid waters result in low light penetration, ruling out visual sensing systems as an effective means of receiving information. Other aspects of morphology and behavior such as the absence or reduction of scales, and the nocturnal feeding activities characteristic of other gymnotiform, can be explained as consequences of food resource availability and predation pressures in these riverine environments.</div></front></TEI><istex><corpusName>springer</corpusName><keywords><teeft><json:string>troscheli</json:string><json:string>rhabdolichops</json:string><json:string>eigenmannia</json:string><json:string>gymnotiforms</json:string><json:string>gymnotiform</json:string><json:string>characiform</json:string><json:string>virescens</json:string><json:string>gill rakers</json:string><json:string>rhabdolichops troscheli</json:string><json:string>gymnotiform fishes</json:string><json:string>electric organs</json:string><json:string>eigenmannia virescens</json:string><json:string>characiform ancestors</json:string><json:string>cyclopoid copepods</json:string><json:string>venezuela</json:string><json:string>light penetration</json:string><json:string>large mouth</json:string><json:string>stomach contents</json:string><json:string>morphological characteristics</json:string><json:string>branchial arches</json:string><json:string>dorsal view</json:string><json:string>generalized characiforms</json:string><json:string>ecological studies</json:string><json:string>nocturnal habits</json:string><json:string>food items</json:string><json:string>prey location</json:string><json:string>fish physiology</json:string><json:string>academic press</json:string><json:string>electric communication</json:string></teeft></keywords><author><json:item><name>Francisco Mago-Leccia</name><affiliations><json:string>Instituto de Zoologia Tropical, Facultad de Ciencias, Universidad Central de Venezuela, Caracas, Venezuela</json:string></affiliations></json:item><json:item><name>Thomas M. 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We use these findings to speculate about the evolution of gymnotiform fishes, by assuming that these character states in this most primitive gymnotiform convey information about the group's evolutionary history. We suggest that the electric organs in this group of ostaryophysans have evolved primarily as a means of locating and capturing prey in river habitats of South America whose turbid waters result in low light penetration, ruling out visual sensing systems as an effective means of receiving information. 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These include post-temporal fossae, well developed gillrakers, a planktivorous feeding mode, and diurnal feeding activity. We use these findings to speculate about the evolution of gymnotiform fishes, by assuming that these character states in this most primitive gymnotiform convey information about the group's evolutionary history. We suggest that the electric organs in this group of ostaryophysans have evolved primarily as a means of locating and capturing prey in river habitats of South America whose turbid waters result in low light penetration, ruling out visual sensing systems as an effective means of receiving information. Other aspects of morphology and behavior such as the absence or reduction of scales, and the nocturnal feeding activities characteristic of other gymnotiform, can be explained as consequences of food resource availability and predation pressures in these riverine environments.</p></abstract><textClass><keywords scheme="Journal Subject"><list><head>Environment</head><item><term>Hydrobiology</term></item><item><term>Zoology</term></item><item><term>Animal Systematics/Taxonomy/Biogeography</term></item><item><term>Environment, general</term></item><item><term>Nature Conservation</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1978-04-03">Created</change><change when="1978-12-01">Published</change><change xml:id="refBibs-istex" who="#ISTEX-API" when="2017-10-3">References added</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/C8A0E44B812CF0CC5E4778C7E80BD5FC634AE7F9/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Springer, Publisher found" wicri:toSee="no header"><istex:xmlDeclaration>version="1.0" encoding="UTF-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//Springer-Verlag//DTD A++ V2.4//EN" URI="http://devel.springer.de/A++/V2.4/DTD/A++V2.4.dtd" name="istex:docType"></istex:docType><istex:document><Publisher><PublisherInfo><PublisherName>Kluwer Academic Publishers</PublisherName><PublisherLocation>Dordrecht</PublisherLocation></PublisherInfo><Journal><JournalInfo JournalProductType="ArchiveJournal" NumberingStyle="Unnumbered"><JournalID>10641</JournalID><JournalPrintISSN>0378-1909</JournalPrintISSN><JournalElectronicISSN>1573-5133</JournalElectronicISSN><JournalTitle>Environmental Biology of Fishes</JournalTitle><JournalAbbreviatedTitle>Environ Biol Fish</JournalAbbreviatedTitle><JournalSubjectGroup><JournalSubject Type="Primary">Environment</JournalSubject><JournalSubject Type="Secondary">Hydrobiology</JournalSubject><JournalSubject Type="Secondary">Zoology</JournalSubject><JournalSubject Type="Secondary">Animal Systematics/Taxonomy/Biogeography</JournalSubject><JournalSubject Type="Secondary">Environment, general</JournalSubject><JournalSubject Type="Secondary">Nature Conservation</JournalSubject></JournalSubjectGroup></JournalInfo><Volume><VolumeInfo VolumeType="Regular" TocLevels="0"><VolumeIDStart>3</VolumeIDStart><VolumeIDEnd>3</VolumeIDEnd><VolumeIssueCount>4</VolumeIssueCount></VolumeInfo><Issue IssueType="Regular"><IssueInfo TocLevels="0"><IssueIDStart>4</IssueIDStart><IssueIDEnd>4</IssueIDEnd><IssueArticleCount>11</IssueArticleCount><IssueHistory><CoverDate><DateString>December 29, 1978</DateString><Year>1978</Year><Month>12</Month></CoverDate></IssueHistory><IssueCopyright><CopyrightHolderName>Dr. W. Junk B.V. Publishers</CopyrightHolderName><CopyrightYear>1978</CopyrightYear></IssueCopyright></IssueInfo><Article ID="Art8"><ArticleInfo Language="En" ArticleType="BriefCommunication" NumberingStyle="Unnumbered" TocLevels="0" ContainsESM="No"><ArticleID>BF00000530</ArticleID><ArticleDOI>10.1007/BF00000530</ArticleDOI><ArticleSequenceNumber>8</ArticleSequenceNumber><ArticleTitle Language="En">The taxonomic status of<Emphasis Type="Italic">Rhabdolichops troscheli</Emphasis> (Kaup, 1856), and speculations on gymnotiform evolution</ArticleTitle><ArticleCategory>Note</ArticleCategory><ArticleFirstPage>379</ArticleFirstPage><ArticleLastPage>384</ArticleLastPage><ArticleHistory><RegistrationDate><Year>2004</Year><Month>3</Month><Day>2</Day></RegistrationDate><Received><Year>1978</Year><Month>4</Month><Day>3</Day></Received><Accepted><Year>1978</Year><Month>6</Month><Day>15</Day></Accepted></ArticleHistory><ArticleCopyright><CopyrightHolderName>Dr. W. Junk B.V. Publishers</CopyrightHolderName><CopyrightYear>1978</CopyrightYear></ArticleCopyright><ArticleGrants Type="Regular"><MetadataGrant Grant="OpenAccess"></MetadataGrant><AbstractGrant Grant="OpenAccess"></AbstractGrant><BodyPDFGrant Grant="Restricted"></BodyPDFGrant><BodyHTMLGrant Grant="Restricted"></BodyHTMLGrant><BibliographyGrant Grant="Restricted"></BibliographyGrant><ESMGrant Grant="Restricted"></ESMGrant></ArticleGrants><ArticleContext><JournalID>10641</JournalID><VolumeIDStart>3</VolumeIDStart><VolumeIDEnd>3</VolumeIDEnd><IssueIDStart>4</IssueIDStart><IssueIDEnd>4</IssueIDEnd></ArticleContext></ArticleInfo><ArticleHeader><AuthorGroup><Author AffiliationIDS="Aff1"><AuthorName DisplayOrder="Western"><GivenName>Francisco</GivenName><FamilyName>Mago-Leccia</FamilyName></AuthorName></Author><Author AffiliationIDS="Aff2"><AuthorName DisplayOrder="Western"><GivenName>Thomas</GivenName><GivenName>M.</GivenName><FamilyName>Zaret</FamilyName></AuthorName></Author><Affiliation ID="Aff1"><OrgName>Instituto de Zoologia Tropical, Facultad de Ciencias, Universidad Central de Venezuela</OrgName><OrgAddress><City>Caracas</City><Country>Venezuela</Country></OrgAddress></Affiliation><Affiliation ID="Aff2"><OrgDivision>Department of Zoology FM-12</OrgDivision><OrgName>University of Washington</OrgName><OrgAddress><City>Seattle</City><State>Washington</State><Postcode>98195</Postcode><Country>USA</Country></OrgAddress></Affiliation></AuthorGroup><Abstract ID="Abs1" Language="En"><Heading>Synopsis</Heading><Para>Anatomical and ecological studies of the gymnotiform<Emphasis Type="Italic">Rhabdolichops troscheli</Emphasis> (Kaup 1856), one of the weakly electric fish of South America, indicate it to be unique among gymnotiforms in possessing certain characteristics found in characins. These include post-temporal fossae, well developed gillrakers, a planktivorous feeding mode, and diurnal feeding activity. We use these findings to speculate about the evolution of gymnotiform fishes, by assuming that these character states in this most primitive gymnotiform convey information about the group's evolutionary history. We suggest that the electric organs in this group of ostaryophysans have evolved primarily as a means of locating and capturing prey in river habitats of South America whose turbid waters result in low light penetration, ruling out visual sensing systems as an effective means of receiving information. Other aspects of morphology and behavior such as the absence or reduction of scales, and the nocturnal feeding activities characteristic of other gymnotiform, can be explained as consequences of food resource availability and predation pressures in these riverine environments.</Para></Abstract><KeywordGroup Language="En"><Heading>Keywords</Heading><Keyword>Gymnotids</Keyword><Keyword>Fish taxonomy</Keyword><Keyword>Tropical fishes</Keyword><Keyword>Planktivore</Keyword><Keyword>Evolution</Keyword><Keyword>Fish ecology</Keyword></KeywordGroup></ArticleHeader><NoBody></NoBody></Article></Issue></Volume></Journal></Publisher></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>The taxonomic status of Rhabdolichops troscheli (Kaup, 1856), and speculations on gymnotiform evolution</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>The taxonomic status ofRhabdolichops troscheli (Kaup, 1856), and speculations on gymnotiform evolution</title></titleInfo><name type="personal"><namePart type="given">Francisco</namePart><namePart type="family">Mago-Leccia</namePart><affiliation>Instituto de Zoologia Tropical, Facultad de Ciencias, Universidad Central de Venezuela, Caracas, Venezuela</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Thomas</namePart><namePart type="given">M.</namePart><namePart type="family">Zaret</namePart><affiliation>Department of Zoology FM-12, University of Washington, 98195, Seattle, Washington, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="brief-communication" displayLabel="BriefCommunication" authority="ISTEX" authorityURI="https://content-type.data.istex.fr" valueURI="https://content-type.data.istex.fr/ark:/67375/XTP-S9SX2MFS-0">brief-communication</genre><originInfo><publisher>Kluwer Academic Publishers</publisher><place><placeTerm type="text">Dordrecht</placeTerm></place><dateCreated encoding="w3cdtf">1978-04-03</dateCreated><dateIssued encoding="w3cdtf">1978-12-01</dateIssued><dateIssued encoding="w3cdtf">1978</dateIssued><copyrightDate encoding="w3cdtf">1978</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><abstract lang="en">Synopsis: Anatomical and ecological studies of the gymnotiformRhabdolichops troscheli (Kaup 1856), one of the weakly electric fish of South America, indicate it to be unique among gymnotiforms in possessing certain characteristics found in characins. These include post-temporal fossae, well developed gillrakers, a planktivorous feeding mode, and diurnal feeding activity. We use these findings to speculate about the evolution of gymnotiform fishes, by assuming that these character states in this most primitive gymnotiform convey information about the group's evolutionary history. We suggest that the electric organs in this group of ostaryophysans have evolved primarily as a means of locating and capturing prey in river habitats of South America whose turbid waters result in low light penetration, ruling out visual sensing systems as an effective means of receiving information. Other aspects of morphology and behavior such as the absence or reduction of scales, and the nocturnal feeding activities characteristic of other gymnotiform, can be explained as consequences of food resource availability and predation pressures in these riverine environments.</abstract><note>Note</note><relatedItem type="host"><titleInfo><title>Environmental Biology of Fishes</title></titleInfo><titleInfo type="abbreviated"><title>Environ Biol Fish</title></titleInfo><genre type="journal" displayLabel="Archive Journal" authority="ISTEX" valueURI="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</genre><originInfo><publisher>Springer</publisher><dateIssued encoding="w3cdtf">1978-12-01</dateIssued><copyrightDate encoding="w3cdtf">1978</copyrightDate></originInfo><subject><genre>Environment</genre><topic>Hydrobiology</topic><topic>Zoology</topic><topic>Animal Systematics/Taxonomy/Biogeography</topic><topic>Environment, general</topic><topic>Nature Conservation</topic></subject><identifier type="ISSN">0378-1909</identifier><identifier type="eISSN">1573-5133</identifier><identifier type="JournalID">10641</identifier><identifier type="IssueArticleCount">11</identifier><identifier type="VolumeIssueCount">4</identifier><part><date>1978</date><detail type="volume"><number>3</number><caption>vol.</caption></detail><detail type="issue"><number>4</number><caption>no.</caption></detail><extent unit="pages"><start>379</start><end>384</end></extent></part><recordInfo><recordOrigin>Dr. W. Junk B.V. Publishers, 1978</recordOrigin></recordInfo></relatedItem><identifier type="istex">C8A0E44B812CF0CC5E4778C7E80BD5FC634AE7F9</identifier><identifier type="ark">ark:/67375/1BB-0QRHPBJM-L</identifier><identifier type="DOI">10.1007/BF00000530</identifier><identifier type="ArticleID">BF00000530</identifier><identifier type="ArticleID">Art8</identifier><accessCondition type="use and reproduction" contentType="copyright">Dr. W. Junk B.V. Publishers, 1978</accessCondition><recordInfo><recordContentSource authority="ISTEX" authorityURI="https://loaded-corpus.data.istex.fr" valueURI="https://loaded-corpus.data.istex.fr/ark:/67375/XBH-3XSW68JL-F">springer</recordContentSource><recordOrigin>Dr. W. Junk B.V. Publishers, 1978</recordOrigin></recordInfo></mods><json:item><extension>json</extension><original>false</original><mimetype>application/json</mimetype><uri>https://api.istex.fr/document/C8A0E44B812CF0CC5E4778C7E80BD5FC634AE7F9/metadata/json</uri></json:item></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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