Effects of age and body size on gonadal development of Atlantic sturgeon
Identifieur interne : 000C59 ( Istex/Curation ); précédent : 000C58; suivant : 000C60Effects of age and body size on gonadal development of Atlantic sturgeon
Auteurs : J. P. Van Eenennaam [États-Unis] ; S. I. Doroshov [États-Unis]Source :
- Journal of Fish Biology [ 0022-1112 ] ; 1998-09.
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Abstract
Three hundred and five Atlantic sturgeon caught in the Hudson River and Hudson Bight were examined for age, body size and gonadal development (histology). Sampled fish ranged in age from 1·5 to 43 years and fork length (LF) 48–244 cm, and included 144 females and 161 males. All young sturgeon (age 1·5–4 years) caught in the river had sexually differentiated gonads. Age and size distributions of subadults and adults at different stages of gametogenesis were sex‐specific and conformed with von Bertalanffy growth curves. Males mature faster and at a younger age compared to the females. Females with mid‐vitellogenic ovaries were not found and their absence may be related to fishing gear selectivity or out‐migration into the ocean during ovarian recrudescence. Mature males and females caught during the spring spawning migration into the Hudson River, ranged in age from 12 to 19 and from 14 to 43 years, and LF 117–185 and 173–244 cm, respectively. Individual fecundity and diameter of fully grown ovarian follicles increased with age and body size, but this increase was dampened in older females. Three hermaphroditic fish were found and all exhibited sparse pre‐vitellogenic ovarian follicles embedded in normally developing testicular tissue.
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DOI: 10.1111/j.1095-8649.1998.tb01006.x
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Doroshov</name><affiliation wicri:level="1"><mods:affiliation>Department of Animal Science, Meyer Hall, University of California, One Shields Avenue, Davis, CA 95616, U.S.A.</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Animal Science, Meyer Hall, University of California, One Shields Avenue, Davis, CA 95616</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:66409444B7E0D35EEFE46F15F186A62CDD1B72B1</idno><date when="1998" year="1998">1998</date><idno type="doi">10.1111/j.1095-8649.1998.tb01006.x</idno><idno type="url">https://api.istex.fr/document/66409444B7E0D35EEFE46F15F186A62CDD1B72B1/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000C61</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000C61</idno><idno type="wicri:Area/Istex/Curation">000C59</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Effects of age and body size on gonadal development of Atlantic sturgeon</title><author><name sortKey="Van Eenennaam, J P" sort="Van Eenennaam, J P" uniqKey="Van Eenennaam J" first="J. P." last="Van Eenennaam">J. P. Van Eenennaam</name><affiliation wicri:level="1"><mods:affiliation>Department of Animal Science, Meyer Hall, University of California, One Shields Avenue, Davis, CA 95616, U.S.A.</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Animal Science, Meyer Hall, University of California, One Shields Avenue, Davis, CA 95616</wicri:regionArea></affiliation><affiliation wicri:level="1"><mods:affiliation>E-mail: jpvaneenennaam@ucdavis.edu</mods:affiliation><country wicri:rule="url">États-Unis</country></affiliation></author><author><name sortKey="Doroshov, S I" sort="Doroshov, S I" uniqKey="Doroshov S" first="S. I." last="Doroshov">S. I. Doroshov</name><affiliation wicri:level="1"><mods:affiliation>Department of Animal Science, Meyer Hall, University of California, One Shields Avenue, Davis, CA 95616, U.S.A.</mods:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Animal Science, Meyer Hall, University of California, One Shields Avenue, Davis, CA 95616</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Fish Biology</title><idno type="ISSN">0022-1112</idno><idno type="eISSN">1095-8649</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="1998-09">1998-09</date><biblScope unit="volume">53</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="624">624</biblScope><biblScope unit="page" to="637">637</biblScope></imprint><idno type="ISSN">0022-1112</idno></series><idno type="istex">66409444B7E0D35EEFE46F15F186A62CDD1B72B1</idno><idno type="DOI">10.1111/j.1095-8649.1998.tb01006.x</idno><idno type="ArticleID">JFB624</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0022-1112</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Atlantic sturgeon</term><term>Hudson Bight</term><term>fecundity</term><term>gametogenesis</term><term>hermaphroditism.</term><term>oocyte diameter</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Three hundred and five Atlantic sturgeon caught in the Hudson River and Hudson Bight were examined for age, body size and gonadal development (histology). Sampled fish ranged in age from 1·5 to 43 years and fork length (LF) 48–244 cm, and included 144 females and 161 males. All young sturgeon (age 1·5–4 years) caught in the river had sexually differentiated gonads. Age and size distributions of subadults and adults at different stages of gametogenesis were sex‐specific and conformed with von Bertalanffy growth curves. Males mature faster and at a younger age compared to the females. Females with mid‐vitellogenic ovaries were not found and their absence may be related to fishing gear selectivity or out‐migration into the ocean during ovarian recrudescence. Mature males and females caught during the spring spawning migration into the Hudson River, ranged in age from 12 to 19 and from 14 to 43 years, and LF 117–185 and 173–244 cm, respectively. Individual fecundity and diameter of fully grown ovarian follicles increased with age and body size, but this increase was dampened in older females. Three hermaphroditic fish were found and all exhibited sparse pre‐vitellogenic ovarian follicles embedded in normally developing testicular tissue.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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