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首页> 外文期刊>CRUSTACEANA >Distribution and estimation of body size and weight of four species of deep water shrimps in the southeastern Gulf of California, Mexico
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Distribution and estimation of body size and weight of four species of deep water shrimps in the southeastern Gulf of California, Mexico

机译：墨西哥东南加州墨西哥湾四种深水虾的体重分布和估计

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摘要

There is virtually no fishery for deep-water shrimps in the Gulf of California, Mexico, mostly due to lack of information and to the presence of a wide minimum oxygen layer that spans from depths of c. 100-150 m to 600-800 m. The body weight and size of four species of deep-water shrimps (Benthesicymus tanneri, Heterocarpus affinis, Pandalopsis ampla, and Glyphocrangon spinulosa) were analysed. Samples were collected with a benthic sledge during four research cruises (August and December 2000; March and June 2001) in the SE Gulf of California to depths over 2000 m. Relationships between total length and carapace length, total length and total weight, and between tail weight with and without carapace were established for each species. Relationships were not significantly different between males and females, except in the case of the total weight/total length regression in B. tanneri. A tail weight/body weight index was calculated from regression equations: B. tanneri, 0.43; H. affinis, 0.46; P. ampla, 0.50; G. spinulosa, 0.40. Maximum body size (153 mm) and weight (28 g) indicate that H. affinis should be considered as the target species while the other species should be considered as by-catch.
机译：实际上，在墨西哥湾的墨西哥湾，几乎没有捕捞深水虾的情况，主要是由于缺乏信息，而且存在着深达c深度的最小最小氧层。 100-150 m至600-800 m分析了四种深水虾（Benthesicymus tanneri，Hterocarpus affinis，Pandalopsis ampla和Glyphocrangon spinulosa）的体重和大小。在加利福尼亚SE湾的四个研究航行（2000年8月和2000年12月; 2001年3月和2001年6月）中，用底栖雪橇采集了样本，深度超过2000 m。建立了每种物种的总长度和甲壳长度，总长度和总重量之间的关系，以及有或没有甲壳的尾巴重量之间的关系。男性和女性之间的关系没有显着差异，但鞣制双歧杆菌中总体重/总长度的回归除外。从回归方程式计算出尾巴重量/体重指数：B.tanneri，0.43; B.tanneri，0.43。血友病菌，0.46; P.ampla，0.50; G. spinulosa，0.40。最大体重（153毫米）和体重（28克）表明，嗜血链球菌应被视为目标物种，而其他物种应被视为副渔获物。

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