北太平洋柔鱼的丰度指数与气候因子之间的关系
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- 英文论文题名：Relationship between abundance indices of neon flying squid(Ommastrephes bartramii) and climatic factors in the north Pacific Ocean
- 论文作者：魏广恩 ; 汪金涛 ; 陈新军 ; 余为 ; 李刚
- 英文论文作者：Guangen Wei ; Jintao Wang ; Xinjun Chen ; Wei Yu ; Gang Li ; College of Marine Sciences ; Shanghai Ocean University ; Collaborative Innovation Center for Distant-water Fisheries ; National Engineering Research Centre for Oceanic Fisheries ; Shanghai Ocean University
- 年：2016
- 作者机构：上海海洋大学海洋科学学院;大洋渔业资源可持续开发省部共建教育部重点实验室;国家远洋渔业工程技术研究中心;
- 论文关键词：柔鱼 ; 环境变量 ; 人工神经网络 ; 资源丰度指数 ; 北太平洋。
- 英文论文关键词：Ommastrephes bartramii ; environmental variation ; artificial neural network ; abundance indices ; North Pacific Ocean
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S931.1
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：560k
- 原文格式：D
- 会议级别：全国
摘要
柔鱼冬春生群体的丰度指数的年际间震荡与环境变量具有显著的相关性,利用神经网络模型结合多种的环境数据可用来评估柔鱼的丰度指数,并且可以更好地理解柔鱼丰度指数和环境变量之间的关系。本文利用了中国鱿钓船队从1994-2015年的捕捞西部冬春生群体的渔获数据、产卵场区域性尺度的环境数据(产卵场区域最适海表温的比例)和大尺度海洋气候指数,包括太平洋年代际震荡指数(PDO)、南方涛动指数(SOI)和厄尔尼诺转化指数(TNI)。自变量相关和灵敏度分析结果显示产卵场1月和3月的Ps值与柔鱼的资源丰度具有显著的正相关性。PDO指数与柔鱼资源丰度具有显著的正相关并且主要影响柔鱼的1月的产卵季节和8月的索饵季节。TNI和SOI与厄尔尼诺事件相关并且会影响产卵和索饵季节时的Ps值。
Interannual fluctuation in abundance indices of winter-spring cohort of the neon flying squid(Ommastrephes bartramii) was found to be significantly correlated with environmental variations. A variety of datasets were used within a suite of artificial neural networks to evaluate squid abundance indices and better understand the relationship between squid abundance indices and environmental variations. These data included Chinese squid-jigging vessel fishery data for the western winter-spring cohort of O. bartramii during 1994-2015, regional-scale environmental conditions(the proportion of favourable-SST in a given area, Ps) in spawning areas and large-scale oceanographic indices, including Pacific Decadal Oscillation(PDO), Southern Oscillation Index(SOI), and Trans-Ni?o Index(TNI). Independent variable relevance and sensitivity analyses indicated that Ps in spawning areas was positively correlated with squid abundance and January and March were significant months. PDO was significantly and positively related to squid abundance indices and mostly influence the period of spawning and feeding seasons in January and August.
Interannual fluctuation in abundance indices of winter-spring cohort of the neon flying squid(Ommastrephes bartramii) was found to be significantly correlated with environmental variations. A variety of datasets were used within a suite of artificial neural networks to evaluate squid abundance indices and better understand the relationship between squid abundance indices and environmental variations. These data included Chinese squid-jigging vessel fishery data for the western winter-spring cohort of O. bartramii during 1994-2015, regional-scale environmental conditions(the proportion of favourable-SST in a given area, Ps) in spawning areas and large-scale oceanographic indices, including Pacific Decadal Oscillation(PDO), Southern Oscillation Index(SOI), and Trans-Ni?o Index(TNI). Independent variable relevance and sensitivity analyses indicated that Ps in spawning areas was positively correlated with squid abundance and January and March were significant months. PDO was significantly and positively related to squid abundance indices and mostly influence the period of spawning and feeding seasons in January and August.
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