| 秘鲁外海鲯鳅生物学特性及资源分布初步研究 |
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| 引用本文： | 许骆良,;王伟杰,;钱卫国. 秘鲁外海鲯鳅生物学特性及资源分布初步研究[J]. 广东海洋大学学报, 2014, 0(3): 5-9 |
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| 作者姓名： | 许骆良, 王伟杰, 钱卫国 |
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| 作者单位： | [1]上海海洋大学海洋科学学院,上海201306; [2]国家远洋渔业工程技术研究中心 上海海洋大学,上海201306; [3]大洋渔业资源可持续开发省部共建教育部重点实验室 上海海洋大学,上海201306; [4]远洋渔业协同创新中心,上海201306 |
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| 基金项目： | 农业部公海渔业资源专项经费项目（2130135-5） |
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| 摘 要： | 根据2012年5~7月东南太平洋秘鲁外海(探捕海域在83°W~87°W、10°S~14°S)鲯鳅资源的探捕调查资料,对其生物学特性作了初步分析。结果表明:秘鲁外海鲯鳅的叉长范围为31~121cm,优势叉长为30~50cm,占57.4%;在个体大小的空间分布上,探捕海域北部比南部个体略微偏大;雌性叉长(l)与体质量(m)关系式为m=5×10-4·l2.236 2(R2=0.940 5;n=104 9),雄性为m=5×10-4l2.209 6(R2=0.958 0,n=851);雌性鲯鳅比例稍高,占55.2%。探捕海域鲯鳅鱼资源密度较高,CPUE值范围为2~23.6 kg/(人·h),平均为11.6 kg/(人·h);不同区域资源密度有所差异,其中CPUE最高的区域在84°W~86°W、12°30′S~13°30′S附近;探捕期间6月份的最高平均CPUE为16.37 kg/(人·h)。
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| 关 键 词： | 鲯鳅 秘鲁外海 生物学特性 资源分布 CPUE |
Primary Study of Biological Characteristics and Resource Distribution of Coryphaena hippurus in the Sea off Peru |
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| Affiliation: | XU Luo-liang, WANG Wei-jie, QIAN Wei-guo ( 1.College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China; 2. National Engineering Research Center for Oceanic Fisheries, Shanghai Ocean University, Shanghai 201306, China; 3 .Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China; Collaborative Innovation Center for Distant-water Fisheries, Shanghai 201306, China ) |
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| Abstract: | Based on the investigation of Coryphaena hippurus in the sea off Peru （the investigation area is 83°-87°W, 10°-14°S ） from May to July in 2012, the biological characteristics of Coryphaena hippurus were studied. The results show that fork lengths of Coryphaena hippurus range from 31 cm to 121cm. The dominant sizes vary between 30cm and 50cm, which cover 57.4%. The size of Coryphaena hippurus has an increasing tendency from south to north in the area. The statistical relations of length and weight is W=5×l0^-4L^2.2362 （R^2= 0.940 5; n = 104 9 ） for female and W=5×10^-4L^2.2096 （R^2= 0.958 ; n=851 ） for male. During the investigation, the tiny dominant sex is female which occupy 55.2 percent. The results of investigation show that the Coryphaena hippurus distributes the whole investigation area and the resource density is high although they varied in different areas. CPUE ranges between 2 kg/（ person·hour ） to 23.6 kg/（ person·hour ）of which the average is 11.6 kg/（ person·hour ）. The highest CPUE appear in the area in and near 84°W-86°W, 12°30′S-13°30′S. And during the period of investigation, the highest CPUE appear in June and the average of which is 16.37 kg/（ person·hour ）. |
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| Keywords: | Coryphaena hippurus the sea off Peru biological characteristics distribution of resource CPUE |
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