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Present State and Perspectives of Stellate Sturgeon Brood Fish in the Romanian Part of the Danube

Identifieur interne : 000289 ( Istex/Corpus ); précédent : 000288; suivant : 000290

Present State and Perspectives of Stellate Sturgeon Brood Fish in the Romanian Part of the Danube

Auteurs : Cornel Ceapa ; Patrick Williot ; Nicolae Bacalbasa-Dobrovici

Source :

RBID : ISTEX:85759EF4C89F15AAC92C1E346C6D9CDCF2198FAA

English descriptors

Abstract

This paper is presenting the results of a four years biometry study on the stellate sturgeon (Acipenser stellatus) brood fish in the Danube River. We calculated the growth rate, the length‐weight relationships and the age composition for the two sexes of the brood fish during the reproduction migration. Comparing with the age frequencies for the 1965–1968 period we noticed an appreciable shift in the proportion of the age classes toward the youngest ones and a rejuvenation of the population (average age of 7.2 years for the males and 10.9 years for the females). The average total length for the 1997–2000 period (mean TL = 119,73 cm) is much smaller compared to the 30 years earlier value (mean TL = 131.16 cm). The maximum frequency age class was the 7th years class for the males and the 8th and 11th for the females. These data are a classical expression of overfishing.

Url:
DOI: 10.1002/1522-2632(200211)87:5/6<507::AID-IROH507>3.0.CO;2-W

Links to Exploration step

ISTEX:85759EF4C89F15AAC92C1E346C6D9CDCF2198FAA

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<titleInfo type="abbreviated" lang="en">
<title>Acipenser stelllatus in the Danube</title>
</titleInfo>
<titleInfo type="alternative" contentType="CDATA" lang="en">
<title>Present State and Perspectives of Stellate Sturgeon Brood Fish in the Romanian Part of the Danube</title>
</titleInfo>
<name type="personal">
<namePart type="given">Cornel</namePart>
<namePart type="family">Ceapa</namePart>
<affiliation>“Dunarea de Jos” University of Galat�i, Fishing and Aquaculture Department, 47 Domneascã Str., RO‐6200 Galati, Romania</affiliation>
<affiliation>E-mail: cceapa@hotmail.com</affiliation>
<role>
<roleTerm type="text">author</roleTerm>
</role>
</name>
<name type="personal">
<namePart type="given">Patrick</namePart>
<namePart type="family">Williot</namePart>
<affiliation>Cemagref, Division Ressources Aquatiques Continentales, 50 Avenue de Verdun, 33612 Cestas Cedex, France</affiliation>
<role>
<roleTerm type="text">author</roleTerm>
</role>
</name>
<name type="personal">
<namePart type="given">Nicolae</namePart>
<namePart type="family">Bacalbasa‐Dobrovici</namePart>
<affiliation>“Dunarea de Jos” University of Galat�i, Fishing and Aquaculture Department, 47 Domneascã Str., RO‐6200 Galati, Romania</affiliation>
<role>
<roleTerm type="text">author</roleTerm>
</role>
</name>
<typeOfResource>text</typeOfResource>
<genre type="article" displayLabel="article"></genre>
<originInfo>
<publisher>WILEY‐VCH Verlag</publisher>
<place>
<placeTerm type="text">Berlin</placeTerm>
</place>
<dateIssued encoding="w3cdtf">2002-11</dateIssued>
<copyrightDate encoding="w3cdtf">2002</copyrightDate>
</originInfo>
<language>
<languageTerm type="code" authority="rfc3066">en</languageTerm>
<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
</language>
<physicalDescription>
<internetMediaType>text/html</internetMediaType>
<extent unit="figures">4</extent>
<extent unit="tables">2</extent>
<extent unit="references">11</extent>
</physicalDescription>
<abstract lang="en">This paper is presenting the results of a four years biometry study on the stellate sturgeon (Acipenser stellatus) brood fish in the Danube River. We calculated the growth rate, the length‐weight relationships and the age composition for the two sexes of the brood fish during the reproduction migration. Comparing with the age frequencies for the 1965–1968 period we noticed an appreciable shift in the proportion of the age classes toward the youngest ones and a rejuvenation of the population (average age of 7.2 years for the males and 10.9 years for the females). The average total length for the 1997–2000 period (mean TL = 119,73 cm) is much smaller compared to the 30 years earlier value (mean TL = 131.16 cm). The maximum frequency age class was the 7th years class for the males and the 8th and 11th for the females. These data are a classical expression of overfishing.</abstract>
<subject lang="en">
<genre>keywords</genre>
<topic>stellate sturgeon</topic>
<topic>Danube</topic>
<topic>brood fish</topic>
<topic>growth parameters</topic>
<topic>age composition</topic>
<topic>overfishing</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>International Review of Hydrobiology</title>
<subTitle>A Journal Covering all Aspects of Limnology and Marine Biology</subTitle>
</titleInfo>
<titleInfo type="abbreviated">
<title>International Review of Hydrobiology</title>
</titleInfo>
<genre type="journal">journal</genre>
<subject>
<genre>article-category</genre>
<topic>I. Conservation and Broodstock Management: Original Paper</topic>
</subject>
<identifier type="ISSN">1434-2944</identifier>
<identifier type="eISSN">1522-2632</identifier>
<identifier type="DOI">10.1002/(ISSN)1522-2632</identifier>
<identifier type="PublisherID">IROH</identifier>
<part>
<date>2002</date>
<detail type="volume">
<caption>vol.</caption>
<number>87</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>5‐6</number>
</detail>
<extent unit="pages">
<start>507</start>
<end>513</end>
<total>7</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">85759EF4C89F15AAC92C1E346C6D9CDCF2198FAA</identifier>
<identifier type="DOI">10.1002/1522-2632(200211)87:5/6<507::AID-IROH507>3.0.CO;2-W</identifier>
<identifier type="ArticleID">IROH507</identifier>
<accessCondition type="use and reproduction" contentType="copyright">© 2002 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</accessCondition>
<recordInfo>
<recordContentSource>WILEY</recordContentSource>
<recordOrigin>WILEY‐VCH Verlag</recordOrigin>
</recordInfo>
</mods>
</metadata>
<serie></serie>
</istex>
</record>

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