Observations ichtyologiques effectuées en 1986

ln the Bay of Biscay, during 1986, there were a beaching -strand of Dalatias licha. One the one hand, the cod, Gadus morhua, spawning during winter, one the other hand, the meagre, Argyrosomus regius and Senegalese sole, Solea senegalensis, spawning during summer were more numeros than usual. There...

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Bibliographic Details
Main Authors: Quero, Jean-claude, Decamps, Philippe, Du Buit, M.h., Fonteneau, Joseph, Vayne, Jean-jacques
Format: Article in Journal/Newspaper
Language:French
Published: Société des sciences naturelles de la Charente-Maritime 1987
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Online Access:https://archimer.ifremer.fr/doc/1987/publication-3669.pdf
https://archimer.ifremer.fr/doc/00000/3669/
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Summary:ln the Bay of Biscay, during 1986, there were a beaching -strand of Dalatias licha. One the one hand, the cod, Gadus morhua, spawning during winter, one the other hand, the meagre, Argyrosomus regius and Senegalese sole, Solea senegalensis, spawning during summer were more numeros than usual. There are probably connections berween their higher relative abundance and temperatures of colder last winters, for the cod, and warmer summers, for the two other fishes. One witch, Glyptocephalus cynoglossus were caught in the south of 46°N. One double-headed foetus of spur-dog, Squalus acanthias is recorded. NOT CONTROLLED OCR En 1986, outre l'échouage sur une plage de Charente-Maritime d'un Dalatias licha, les auteurs signalent une certaine abondance, à la fois, d'une espèce septentrionale, Gadus morhua, à reproduction hivernale, et de deux espèces méridionales, Argyrosomus regius et Solea senegalensis, à reproduction estivale. La fréquence plus grande ce ces espèces, semble liée, d'une part, à deux hivers rigoureux et d'autre part à des étés plus chauds. Un Glyptocephalus cynoglossus a également été capturé au sud de 46°N. Un foetus bicéphale de Squalus acanthias a été observé. OCR NON CONTRÔLE