Red Grouper Reproduction in the Southern Gulf of Mexico
Red Grouper Reproduction in the Southern Gulf of Mexico
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墨西哥湾南部的红石斑鱼繁殖
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
M. Sánchez
中科院分区：
文献类型：
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作者：
T. Brulé;C. Déniel;T. Colás;M. Sánchez
摘要 对尤卡坦半岛（坎佩切浅滩）近海和近海水域的红石斑鱼 Epinephelus morio 的繁殖生物学进行了为期 5 年（1988-1993）的调查。结果证实，红石斑鱼是单雄性先熟雌雄同体，如下所示：(1) 样本中不存在初生雄性，(2) 群体中存在过渡体（占近海捕捞总量的 1%），(3) 所有雄性的睾丸中均存在膜衬中央腔，大多数雄性的性腺壁中存在背窦，(4) 雄性和雄性石斑鱼的体型范围和平均叉长度存在显着差异。 (5) 叉长 (FL) 小于 72.0 厘米的尺寸类别中，男性与女性的比例偏女性。我们全年都在近海水域发现未成熟的雌性，在近海水域发现未成熟的雌性、成熟的雌性和雄性，以及过渡型。在墨西哥湾南部，该物种表现出季节性繁殖，每年的产卵高峰发生在冬末……
Abstract The reproductive biology of red grouper Epinephelus morio from the inshore and offshore waters of the Yucatan Peninsula (Campeche Bank) was investigated over a 5-year period (1988–1993). Results confirmed that red grouper is a monandric protogynous hermaphrodite as shown by (1) the absence of primary males in samples, (2) the presence of transitionals in the population (1% of the total offshore catches), (3) the occurrence of a membrane-lined central cavity in the testes of all males and dorsal sinuses in the gonadal wall in most males, (4) the significant difference in size ranges and mean fork lengths of males and females, and (5) a female-biased male : female ratio in size-classes less than 72.0 cm fork length (FL). We found immature females all year round in inshore waters and immature females, mature females, and males, and transitionals in offshore waters. In the southern Gulf of Mexico, the species displayed seasonal reproduction, with single, annual peak spawning occurring in late winter ...