| 温台渔场龙头鱼的生长、死亡及最适开捕规格 |
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| 引用本文： | 杜晓雪,高春霞,田思泉,刘伟成,王家启,叶深.温台渔场龙头鱼的生长、死亡及最适开捕规格[J].水产学报,2018,42(10):1550-1558. |
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| 作者姓名： | 杜晓雪 高春霞 田思泉 刘伟成 王家启 叶深 |
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| 作者单位： | 上海海洋大学中国远洋渔业数据中心;上海海洋大学大洋渔业资源可持续开发教育部重点实验室;上海海洋大学海洋科学学院;上海海洋大学国家远洋渔业工程技术研究中心;浙江省海洋水产养殖研究所;浙江省近岸水域生物资源开发与保护重点实验室 |
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| 基金项目： | 浙江省渔业资源调查（温台地区）（158053） |
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| 摘 要： | 在传统渔业资源衰退的情况下,龙头鱼等次要的经济种类逐渐成为东海海区的优势种群,具有重要的经济价值和生态地位。根据2015年11月—2016年8月在温州台州外海(120.93°~122.95°E,27.21°~28.97°N)调查采集的2 611尾龙头鱼的生物学数据,用ELEFANⅠ方法对其生长、死亡参数进行估算,并通过不完全β函数渔获量方程动态综合模型确定最适开捕规格,评估种群资源的利用状况。结果显示,温台渔场龙头鱼体长—体质量关系为W=0.000 5L3.87(R2=0.906 7),雌、雄个体间的体长—体质量关系无显著性差异;龙头鱼的Von Bertalanffy生长方程参数L∞、K、t0分别为32.13 cm、0.39和–0.69龄,体质量生长拐点年龄为2.78龄;根据体长组成资料的线性渔获量曲线估算出龙头鱼的总死亡系数2.55,用Pauly经验公式估算出自然死亡系数0.66,捕捞死亡系数1.89和开发率0.74;动态综合模型评估表明,应适当提高开捕年龄,增大开捕体长,最适开捕年龄tc为1.15龄,相应开捕体长为16.5 cm。
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| 关 键 词： | 龙头鱼 生长参数 开捕体长 不完全β函数渔获量方程 温台渔场 |
| 收稿时间： | 2017/6/8 0:00:00 |
| 修稿时间： | 2017/10/22 0:00:00 |
Growth, mortality and optimum catchable size of Bombay duck (Harpadon nehereus) in the Wentai fishing ground, East China Sea |
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| DU Xiaoxue,GAO Chunxi,TIAN Siquan,LIU Weicheng,WANG Jiaqi and YE Shen.Growth, mortality and optimum catchable size of Bombay duck (Harpadon nehereus) in the Wentai fishing ground, East China Sea[J].Journal of Fisheries of China,2018,42(10):1550-1558. |
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| Authors: | DU Xiaoxue GAO Chunxi TIAN Siquan LIU Weicheng WANG Jiaqi and YE Shen |
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| Institution: | College of Marine Science, Shanghai Ocean University, Shanghai 201306, China;National Data Centre for Distant-Water Fisheries of China, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China,College of Marine Science, Shanghai Ocean University, Shanghai 201306, China;National Data Centre for Distant-Water Fisheries of China, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China;National Distant-water Fisheries Engineering Research Center, Shanghai Ocean University, Shanghai 201306, China,College of Marine Science, Shanghai Ocean University, Shanghai 201306, China;National Data Centre for Distant-Water Fisheries of China, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China;National Distant-water Fisheries Engineering Research Center, Shanghai Ocean University, Shanghai 201306, China,Zhejiang Mariculture Research Institute, Wenzhou 325005, China;Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-resource, Wenzhou 325005, China,College of Marine Science, Shanghai Ocean University, Shanghai 201306, China;National Data Centre for Distant-Water Fisheries of China, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China and Zhejiang Mariculture Research Institute, Wenzhou 325005, China;Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-resource, Wenzhou 325005, China |
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