Spawning rhythms of common snook in Florida
Spawning rhythms of common snook in Florida
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佛罗里达州常见斯诺克的产卵节奏
DOI：
10.1111/j.1095-8649.1998.tb00998.x
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发表时间：
1998
影响因子：
2
通讯作者：
J. A. Whittington
中科院分区：
文献类型：
--
作者：
Ronald G. Taylor;H. Grier;J. A. Whittington
在1989至1991年间，每月从佛罗里达州大西洋沿岸的朱庇特湖沃斯地区(1452条鱼)和1988至1989年(2090条鱼)在佛罗里达州墨西哥湾沿岸的坦帕湾(Tampa Bay)采集到普通的十进制中央斯诺克鱼。证明了卵母细胞的群体同步发育。两个海岸的卵巢成熟始于3月或4月。在组织学上，1989年和1991年在大西洋沿岸首次发现产卵，1988年5月和1989年4月在墨西哥湾海岸首次发现产卵。每年，大西洋沿岸的产卵活动在10月结束，墨西哥湾沿岸的产卵活动在9月结束。卵巢组织学证据表明，个体雌性可能在1400-2000小时之间每隔1.1-2.5天产卵一次。卵母细胞的最终成熟与潮汐周期或月相无关，在预典当或产卵条件下，每天都能观察到一些常见的斯诺克现象。产卵发生在大西洋和墨西哥湾的主要进水口或附近，在通往更大内陆海湾和海湾的次要通道中，以及近岸岛屿周围。
Common snook Centropomus undecimaliswere sampled monthly from the Jupiter–Lake Worth area of Florida's Atlantic coast during 1989 and 1991 (1452 fish) and from Tampa Bay on Florida's Gulf of Mexico coast during 1988 and 1989 (2090 fish). Group-synchronous oocyte development was demonstrated. Ovarian maturation began during March or April on both coasts. Spawning was first detected histologically in April during 1989 and 1991 on the Atlantic coast and during May in 1988 and in April in 1989 on the Gulf coast. In each year, spawning ended during October on the Atlantic coast and during September on the Gulf coast. Ovarian histological evidence suggested that individual females may spawn every 1·1–2·5 days between 1400 and about 2000 hours. Final oocyte maturation occurred independently of either tidal cycle or lunar phase, and some common snook were observed in prespawning or spawning condition on every day sampled. Spawning occurred in or near major inlets to the Atlantic Ocean and the Gulf of Mexico, in secondary passes to larger inland bays and bayous, and around nearshore islands.