EsturgeonV1, Main, Merge, bibRecord, 001341

A noninvasive technique for determining sex of live adult North American sturgeons

Identifieur interne : 001341 ( Main/Merge ); précédent : 001340; suivant : 001342

A noninvasive technique for determining sex of live adult North American sturgeons

Auteurs : Paul Vecsei [Canada] ; Matthew K. Litvak [Canada] ; David L. G. Noakes [Canada] ; Tom Rien [États-Unis] ; Martin Hochleithner [Autriche]

Source :

Environmental biology of fishes [ 0378-1909 ] ; 2003.

RBID : Pascal:04-0375090

Descripteurs français

Pascal (Inist)
- Sexe, Amérique du Nord, Protection environnement, Morphologie, Dimorphisme sexuel, Pisces, Méthode non invasive.

English descriptors

KwdEn :
- Environmental protection, Morphology, Non invasive method, North America, Pisces, Sex, Sexual dimorphism.

Abstract

We have developed a noninvasive technique to determine the sex of adult North American sturgeon by examination of the external morphology of live individuals. We analyzed four sturgeon species taken by commercial and scientific harvest: white Acipenser transmontanus, green A. medirostris, Atlantic A. oxyrinchus and shortnose A. brevirostrum. Males have a urogenital opening in the shape of a letter Y, while the opening of females is in the shape of the letter O. We accurately sexed 26 of 36 sturgeon using this criterion. Accuracy was highest in live fish (82%), and significantly lower in dead fish (29%). Dead sturgeon usually have the rectum prolapsed so that the urogenital opening is protruded, and thus making the sexes indistinguishable.

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000270
to stream PascalFrancis, to step Curation: 000106
to stream PascalFrancis, to step Checkpoint: 000297

Links to Exploration step

Pascal:04-0375090

Le document en format XML

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<front><div type="abstract" xml:lang="en">We have developed a noninvasive technique to determine the sex of adult North American sturgeon by examination of the external morphology of live individuals. We analyzed four sturgeon species taken by commercial and scientific harvest: white Acipenser transmontanus, green A. medirostris, Atlantic A. oxyrinchus and shortnose A. brevirostrum. Males have a urogenital opening in the shape of a letter Y, while the opening of females is in the shape of the letter O. We accurately sexed 26 of 36 sturgeon using this criterion. Accuracy was highest in live fish (82%), and significantly lower in dead fish (29%). Dead sturgeon usually have the rectum prolapsed so that the urogenital opening is protruded, and thus making the sexes indistinguishable.</div>
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A noninvasive technique for determining sex of live adult North American sturgeons

A noninvasive technique for determining sex of live adult North American sturgeons

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri