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首页> 外文期刊>North American Journal of Fisheries Management >Growth and Maturation of Acadian Redfish in the Gulf of Maine
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Growth and Maturation of Acadian Redfish in the Gulf of Maine

机译：缅因州海湾Acadian Redfish的生长和成熟

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摘要

Acadian Redfish Sebastes fasciatus were captured by otter trawl from inshore and offshore sites in the Gulf of Maine. Fish weights and lengths were recorded, sagittal annuli were counted for age determination, and ovarian histology was conducted to develop ogives for length and age at maturity for females. Maximum observed ages of males and females were 25 and 37 years, respectively, but very few males greater than 21 years and females greater than 25 years of age were observed. Growth functions were significantly different between males and females, and similar growth rates (k) but higher maximum length (L-infinity) and lower t(0) values were observed in females. Mature female Acadian Redfish ranged in length and age from 17 to 39 cm and from 4 to 37 years, respectively, attaining 100% maturity at similar to 26 cm and similar to 10 years. Median length at maturity (L-50) was 21.7 cm and median age at maturity (A(50)) was 6.6 years. Smaller, immature fish were primarily sampled from inshore locations. The results of this study were very similar to previous data from a depleted Acadian Redfish population in the Gulf of Maine from 1975 to 1980, suggesting that these population parameters have not changed despite population recovery.
机译：Acadian Redfish Sebastes Fasciatus被Otter从缅因州湾的近海和离岸地点捕获。记录了鱼权和长度，占据了年龄测定的矢状，并进行了卵巢组织学，为女性到期时的长度和年龄发展ogives。最多观察到的男性和女性分别为25岁和37岁，但较少少于21岁，女性均观察到大于25岁。在雌性和女性之间，生长功能在显着差异，并且在女性中观察到类似的生长速率（K）但最大长度（L-无限）和更低的T（0）值。成熟的雌性阿卡迪鱼的长度和年龄从17至39厘米，分别为4至37岁，达到100％的成熟度，类似于26厘米，类似于10年。成熟度（L-50）的中位数长度为21.7厘米，成熟度（A（50））的中位数为6.6倍。较小，未成熟的鱼类主要来自居住地点。本研究的结果与来自1975年至1980年缅因州河湾的耗尽的Acadian Redfish人口的先前数据非常相似，这表明这些人口参数尽管人口恢复了。

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