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Lahaye, Jacqueline. |
In recent years, thyroidal activity in Teleosts has been the focus of a significant amount of studies. This activity shows important variations through the year, and different authors managed to establish its seasonal cycle. Among them are: LIEBER (1936) in Misgurnus fossilis, HAGEN (1936) in Eel, HOAR (1939) and OLIVEREAU (1954) in Salmon, BUCHMANN (1940) in Clupea halengus, BARRINGTON and MATTY (1954) in Phoxinus phoxinus, SWIFT (1954) in Salmo trutta, WOODHEAD (1959) in Gadus callarias.... |
Tipo: Text |
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Ano: 1966 |
URL: http://archimer.ifremer.fr/doc/1966/publication-3975.pdf |
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Lahaye, Jacqueline. |
Representative species of the families Pleuronectidae, Bothidae and Soleidae were studied throughout the year. Changes are described which were seen in the ovaries, and photographs of cross sections of the tissue are shown. The progress of egg release was noted, and in some cases correlated studies were made of gonadal changes in male. The period of egg release was prolonged over 1 one half -2 months for plaice and turbot, and for 6 months for sole. Individual fish showed these extended periods of laying, and the actual months of the year differed for each species. The massive mobilisation of reserves which necessarily accompanied the release of large numbers of eggs was reflected by turbot, in sperm production. In addition, the increase in gonadosomatic... |
Tipo: Text |
Palavras-chave: Gonadosomatic activity; Sperm; Species; Brittany coasts; Flat fishes; Sexual cycles. |
Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-2064.pdf |
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