Age estimation and reproductive status of an exceptionally large blue-eye trevalla (Hyperoglyphe antarctica, Centrolophidae) captured off the south coast of Western Australia

In March 2005, an exceptionally large blue-eye trevalla, Hyperoglyphe antarctica Carmichael, 1819), was captured by drop line off the south coast of Western Australia. The specimen measured 1066 mm total length, 968 mm fork length, was female and in spawning condition (hydrated oocytes were present)...

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Veröffentlicht in:Cybium 2008-12, Vol.32 (4), p.321-324
Hauptverfasser: WAKEFIELD, Corey B, NEWMAN, Stephen J
Format: Artikel
Sprache:eng
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Zusammenfassung:In March 2005, an exceptionally large blue-eye trevalla, Hyperoglyphe antarctica Carmichael, 1819), was captured by drop line off the south coast of Western Australia. The specimen measured 1066 mm total length, 968 mm fork length, was female and in spawning condition (hydrated oocytes were present). The sagitta was used to estimate an age of approximately 32 years. This specimen is one of the largest and oldest reported for this species and also contributes towards the knowledge of the reproductive biology of this species, which has not been investigated in Western Australia.Original Abstract: Estimation de l'age et du statut reproducteur d'un individu exceptionnellement grand de Hyperoglyphe antarctica (Centrolophidae) capture sur la cote sud de l'Australie occidentale. En mars 2005, un individu exceptionnellement grand de Hyperoglyphe antarctica (Carmichael, 1819) a ete capture a la ligne sur la cote sud de l'Australie Occidentale. Ce specimen qui mesurait 1066 mm de longueur totale pour 968 mm de longueur a la fourche, etait une femelle prete a frayer (des oocytes hydrates etaient presents). La sagitta a ete utilisee pour estimer un age d'environ 32 ans. Cet exemplaire est un des plus grands et plus vieux de cette espece et contribue aussi a une meilleure connaissance de la biologie reproductrice de l'espece, laquelle n'a pas ete etudiee en Australie Occidentale.
ISSN:0399-0974