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作 者:朱清澄[1,2,3] 马伟刚[3] 花传祥[4] 董炳秀[3] 夏辉[3]
机构地区:[1]上海海洋大学大洋渔业资源可持续开发省部共建教育部重点实验室,上海201306 [2]上海海洋大学大洋生物资源开发和利用上海市高校重点实验室,上海201306 [3]上海海洋大学海洋科学学院,上海201306 [4]上海海洋大学工程学院,上海201306
出 处:《上海海洋大学学报》2009年第5期593-598,共6页Journal of Shanghai Ocean University
基 金:上海市重点学科建设项目(S30702);农业部远洋渔业探捕项目(2007-91);上海高校选拔培养优秀青年教师科研专项基金(B-8101-08-0044)
摘 要:印尼阿拉弗拉海是我国过洋性渔业的主要作业海区之一。根据2008年7-10月在印尼阿拉弗拉海拖网渔船探捕调查所获得的资料,对主要渔获物之一的大西洋带鱼(Trichiurus lepturus)生物学特性进行了分析。研究认为,大西洋带鱼的性成熟度以Ⅱ~Ⅲ期为主,占总样本的81.73%;摄食等级主要为0级和1级,占总数的70.87%;雌雄性比接近1.2∶1;肛长范围为123~650 mm,均值为(343±60)mm;优势肛长组为283~403 mm,均值为(339±31)mm,占总数的77.89%;按经纬度分析,渔获物肛长在136.5°N^137.5°N和6°S^6.5°S范围内差异较大;在优势肛长组中,雄性个体出现的频率高于雌性。据分析推断,其资源状况良好,调查海域可能是产卵渔场。Abstract:The Arafura Sea is one of the major fishing areas for distant-water fishery of China. Based on the data obtained from investigation made by otter board trawl in the Arafura sea of Indonesia during July and October 2008, the biological characteristics of Trichiurus lepturus were studied. The results show that maturity at stage II & HI of the gonad is dominant with percentage of 81.73 ; the feeding intensity is mainly in class 0 or class 1, totally 70.87%; the female-male ratio is near 1.2:1; the anus length range is 123 -650 mm, the dominant length is 283 - 403 mm, the mean value is 339 ± 31 mm, totally 77.89% ; the difference of the distribution of anus length is obvious in the areas of 136.5°N -137.5°N and 6°S -6.5°S; the frequency of male is higher than female' s in the dominant anus length grouping. According to the analysis, it can be deduced that the investigation area is the spawning ground for Trichiurus lepturus and still rich in fish resources.
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