| 北部湾春季多齿蛇鲻生物学特征及其年际变化 |
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| 引用本文： | 邓裕坚,易木荣,李波,刘思杓,邱康文,沈春燕,何雄波,颜云榕. 北部湾春季多齿蛇鲻生物学特征及其年际变化[J]. 渔业科学进展, 2021, 42(2): 36-44 |
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| 作者姓名： | 邓裕坚 易木荣 李波 刘思杓 邱康文 沈春燕 何雄波 颜云榕 |
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| 作者单位： | 广东海洋大学水产学院 湛江524088;广东海洋大学水产学院 湛江524088;南方海洋科学与工程广东省实验室(湛江)南海资源大数据中心 湛江524013;广东海洋大学水产学院 湛江524088;广东省南海深远海渔业管理与捕捞工程技术研究中心 湛江524088;广东海洋大学水产学院 湛江524088;南方海洋科学与工程广东省实验室(湛江)南海资源大数据中心 湛江524013;广东省南海深远海渔业管理与捕捞工程技术研究中心 湛江524088;广东海洋大学深圳研究院海洋渔业信息化技术中心 深圳518120 |
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| 基金项目： | 国家重点研发计划项目(2018YFD0900905);南方海洋科学与工程广东省实验室(湛江)资助项目(ZJW-2019-08);广东省科技计划项目(2018B030320006)共同资助。 |
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| 摘 要： | 根据北部湾渔港采样及海上调查生物学测定与数据分析,研究了北部湾多齿蛇鲻(Saurida tumbil)春季生物学特征及其年际变化.结果显示,2008～2018年春季,多齿蛇鲻个体呈小型化趋势,各年度平均体长范围为15.8～16.9cm,平均体质量范围为48.8～77.5 g,2018年的平均体长和平均体质量比2008...
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| 关 键 词： | 北部湾 多齿蛇鲻 生物学特征 50 性成熟体长 肥满度 年际变化 |
| 收稿时间： | 2019-12-12 |
| 修稿时间： | 2020-05-12 |
Biological characteristics and inter-annual changes of Saurida tumbil in spring in the Beibu Gulf, South China Sea |
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| DENG Yujian,YI Murong,LI Bo,LIU Sibiao,QIU Kangwen,SHEN Chunyan,HE Xiongbo,YAN Yunrong. Biological characteristics and inter-annual changes of Saurida tumbil in spring in the Beibu Gulf, South China Sea[J]. Progress in Fishery Sciences, 2021, 42(2): 36-44 |
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| Authors: | DENG Yujian YI Murong LI Bo LIU Sibiao QIU Kangwen SHEN Chunyan HE Xiongbo YAN Yunrong |
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| Affiliation: | College of Fisheries, Guangdong Ocean University, Zhanjiang 524088;College of Fisheries, Guangdong Ocean University, Zhanjiang 524088; Marine Resources Big Data Center of South China Sea, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524013;College of Fisheries, Guangdong Ocean University, Zhanjiang 524088; Guangdong Provincial Engineering and Technology Research Center of Far Sea Fisheries Management and Fishing of South China Sea, Zhanjiang 524088; College of Fisheries, Guangdong Ocean University, Zhanjiang 524088; Marine Resources Big Data Center of South China Sea, Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524013; Guangdong Provincial Engineering and Technology Research Center of Far Sea Fisheries Management and Fishing of South China Sea, Zhanjiang 524088; Center of Marine Fisheries Information Technology, Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120 |
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| Abstract: | Using data from the spring fishing port samples and bottom trawl surveys in the Beibu Gulf, the biological characteristics and inter-annual changes of Saurida tumbil were investigated. The population structure of S. tumbil in the Beibu Gulf had a miniaturization trend - the average standard length (SL) and body weight (BW) decreased from 2008 to 2018, with ranges of 15.8~16.9 cm and 48.8~77.5 g, respectively. There were also temporal variations in SL and BW; the average values decreased by 6.5% and 34.5% from 2008 to 2018, respectively. The range of the allometric parameter b was 3.03~3.42, indicating that S. tumbil had positive allometric growth (b>3) in the Beibu Gulf in spring. Analysis of the inter-annual change in length at 50% maturity (L50) in females showed that the S. tumbil population maturated before the L50, decreasing 12.6% from 2008 (19.0 cm) to 2018 (16.6 cm). Compared to 2011 (18.6 cm), the 2015 female L50 reduced by 3.8% (17.9 cm). Fatness also declined from 2008 to 2018 (range: 1.09~1.29), as evidenced by consistent downward trends in the fatness samples from both fishing methods. However, fatness had an overall increasing trend with increasing SL. |
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| Keywords: | Beibu Gulf Saurida tumbil Biological characteristics Length at 50% maturity Fatness Inter-annual change |
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