Induced maturation and spawning in an incidentally caught adult pair of critically endangered European sturgeon, Acipenser sturio L.
Identifieur interne : 000177 ( France/Analysis ); précédent : 000176; suivant : 000178Induced maturation and spawning in an incidentally caught adult pair of critically endangered European sturgeon, Acipenser sturio L.
Auteurs : Patrick Williot [France] ; R. Brun [France] ; M. Pelard [France] ; D. Mercier [France]Source :
- Journal of Applied Ichthyology [ 0175-8659 ] ; 2000-12.
Abstract
Described is how a pair of wild spawners of the critically endangered common Atlantic sturgeon, Acipenser sturio L., were induced to provide progeny despite their unsuitable reproductive states. When captured, the female revealed signs of over‐maturation. The male, caught in brackish water, yielded no sperm; after 5 days in fresh water and with pituitary injection, motile spermatozoa were produced. A batch of 30% fertilized eggs was produced with a two‐injection sequence. As opposed to the Siberian sturgeon, A. baeri, the A. sturio L. hatchlings showed no positive phototaxis.
Url:
DOI: 10.1046/j.1439-0426.2000.00238.x
Affiliations:
- France
- Aquitaine, Nouvelle-Aquitaine
- Bordeaux, Cestas
- Cemagref - centre de Bordeaux, Centre national du machinisme agricole, du génie rural, des eaux et des forêts, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000222
- to stream Istex, to step Curation: 000222
- to stream Istex, to step Checkpoint: 000C84
- to stream Main, to step Merge: 001635
- to stream Main, to step Curation: 001558
- to stream Main, to step Exploration: 001558
- to stream France, to step Extraction: 000177
Links to Exploration step
ISTEX:16982B26E35011E5D03297D67DC56052EFDE8C65Le document en format XML
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When captured, the female revealed signs of over‐maturation. The male, caught in brackish water, yielded no sperm; after 5 days in fresh water and with pituitary injection, motile spermatozoa were produced. A batch of 30% fertilized eggs was produced with a two‐injection sequence. As opposed to the Siberian sturgeon, A. baeri, the A. sturio L. hatchlings showed no positive phototaxis.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Aquitaine</li><li>Nouvelle-Aquitaine</li></region><settlement><li>Bordeaux</li><li>Cestas</li></settlement><orgName><li>Cemagref - centre de Bordeaux</li><li>Centre national du machinisme agricole, du génie rural, des eaux et des forêts</li><li>Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture</li></orgName></list><tree><country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Williot, P" sort="Williot, P" uniqKey="Williot P" first="P." last="Williot">Patrick Williot</name></region><name sortKey="Brun, R" sort="Brun, R" uniqKey="Brun R" first="R." last="Brun">R. Brun</name><name sortKey="Mercier, D" sort="Mercier, D" uniqKey="Mercier D" first="D." last="Mercier">D. 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