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首页> 外文期刊>Journal of Oceanography and Marine Science >Recruitment pattern and catch per unit effort of the Black Tiger Shrimp (Penaeus monodon) in Andoni River System, Niger Delta Region of Nigeria
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Recruitment pattern and catch per unit effort of the Black Tiger Shrimp (Penaeus monodon) in Andoni River System, Niger Delta Region of Nigeria

机译：尼日利亚尼日尔三角洲地区安多尼河水系黑虎虾（斑节对虾）的招募方式和捕捞量

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摘要

The investigation of recruitment pattern and catch per unit effort of the black tiger shrimp (Penaeus monodon) was conducted from March 2012 to February 2013 in Andoni River System, Niger Delta region of Nigeria. Total weight and length of sampled P. monodon, number of fishers, fishing duration and temperature were sampled monthly. Total weight of P. monodon landed, number of fishers and fishing duration was used to determine catch per unit effort in kg/man/h. The recruitment pattern was analyzed using the length frequency data of the stock. The result shows that recruitment pattern was continuous and higher during the rainy season, that is from May to October. Catch per unit effort was lowest (46.09Kg/man/h) in January and highest (78.11 kg/man/h) in September. Mean temperature ranged from 27±0.32°C to 31±0.89°C which was suitable for the stock. A positive moderate correlation existed between recruitment and catch per unit effort (r = 0.50056) while a positive weak correlation occurred between recruitment and temperature (r = 0.21102). It is concluded from the study that a rise in the recruitment of P.monodon translated into a rise in catch per unit effort and that temperature was not the only factor necessary for recruitment.
机译：2012年3月至2013年2月，在尼日利亚尼日尔三角洲地区的安多尼河水系进行了黑虎虾（斑节对虾）的捕捞方式和每单位捕捞量的调查。每月抽样抽样的斑节对虾的总重量和长度，渔民数量，捕鱼时间和温度。利用斑节对虾的总重量，渔民数量和捕鱼时间确定单位工作量的捕获量，单位为公斤/人/小时。使用库存的长度频率数据分析了招聘模式。结果表明，在雨季（即5月至10月），招聘模式是连续的，且较高。 1月单位捕捞量最低（46.09Kg / man / h），9月最高（78.11 kg / man / h）。平均温度范围为27±0.32°C到31±0.89°C，适合该原料。募集和捕捞每单位工作量之间存在正的正相关（r = 0.50056），而募集和温度之间存在正的弱相关（r = 0.21102）。从研究得出的结论是，斑节对虾的募集增加转化为每单位工作量捕捞量的增加，而温度不是募集唯一必要的因素。

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