西北太平洋柔鱼渔场分布与涡动能变化的相关关系

刘瑜; 郑全安; 李晓峰

doi:10.3969/j.issn.0253-4193.2020.02.005

西北太平洋柔鱼渔场分布与涡动能变化的相关关系

doi: 10.3969/j.issn.0253-4193.2020.02.005

刘瑜^1,,
郑全安²,
李晓峰^1, ,

1.
上海海洋大学海洋科学学院，上海 201306
2.
马里兰大学大气海洋科学系，马里兰州科利吉帕科 20742

基金项目: “十二五”国家科技支撑计划“大洋性渔业捕捞技术与新资源开发”（2013BAD13B05）。

详细信息

作者简介:
刘瑜（1985—），女，山东省烟台市人，工程师，主要研究方向为渔业遥感。E-mail：liuy@shou.edu.cn

通讯作者:
李晓峰，教授，主要从事海洋遥感和人工智能海洋研究。E-mail：xfli@shou.edu.cn

中图分类号: P745
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- 文章访问数: 373
- HTML全文浏览量: 41
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- 被引次数: 0
出版历程
- 收稿日期: 2019-01-06
- 修回日期: 2019-05-10
- 网络出版日期: 2020-11-18
- 刊出日期: 2020-02-25

Relationship between neon flying squid Ommastrephes bartramii fishery distribution patterns and eddy kinetic energy in Northwest Pacific Ocean

Liu Yu^1
,,
Zheng Quanan²,
Li Xiaofeng^{1
, ,}

1.
College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China
2.
Department of Atmospheric and Oceanic Science, University of Maryland, College Park 20742, USA

摘要

摘要: 本研究利用卫星高度计数据计算海洋涡动能（Eddy Kinetic Energy，EKE），根据2010–2016年中国远洋渔业协会鱿钓组提供的西北太平洋柔鱼(Ommastrephes bartramii)渔业生产数据，分析柔鱼渔场的EKE分布特征以及黑潮延伸体EKE的时空变化对柔鱼渔场分布的影响。结果显示，柔鱼渔场的EKE与单位捕捞努力量渔获量（Catch Per Unit Effort，CPUE）呈显著负相关(P < 0.01)，EKE对CPUE的有效影响范围为0～1 500 cm²/s²，最适宜EKE范围为25～150 cm²/s²。黑潮延伸体EKE强度由西向东递减，与CPUE年平均呈负相关，相关系数为0.81(P < 0.05)。按黑潮延伸体经度范围分为4个子区域，CPUE月平均纬度重心响应该月EKE强度最高的子区域。盛渔期8–10月渔场距离黑潮延伸体在800～1 000 km范围内时，CPUE随距离增加而增大，其中最适宜的距离范围为850～950 km。研究表明，当黑潮延伸体路径弯曲多变时，EKE增大，而柔鱼CPUE变低，渔场位置越偏北。
- 涡动能 /
- 柔鱼 /
- 柔鱼渔场 /
- CPUE /
- 黑潮延伸体 /
- 西北太平洋
Abstract: In this study, the eddy kinetic energy (EKE) derived from satellite altimeter data and the fishery data during 2010−2016 obtained from the Chinese Squid-jigging Science and Technology Group, are used to analyze the spatial and temporal relationship between the Kuroshio Extension EKE and fishing ground distribution. The results show that the catch per unit effort (CPUE) is negatively related to the EKE of fishing ground in the range of 0–1 500 cm²/s², the most suitable EKE is between 25–150 cm²/s². Furthermore, the Kuroshio Extension EKE decreasing from west to east, is correlated with CPUE with the high correlation coefficient of 0.81. According to the longitudinal range, the Kuroshio Extension is divided into four sub-areas, and the monthly average latitudes of fishing ground centroids respond to the sub-areas with the highest EKE in the same month. When the distance (DIST) from fishing grounds to the Kuroshio Extension in the range of 800–1 000 km, CPUE increases with the DIST, and the most suitable DIST from August to October is between 850−950 km. When the Kuroshio Extension path has complicated meanders, EKE is high, while the CPUE is reduced and the fishing grounds move northward.
- eddy kinetic energy /
- Ommasterphes bartramii /
- fishing ground /
- CPUE /
- Kuroshio Extension /
- Northwest Pacific Ocean

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图 1 研究区域和渔场重心位置（黄色圆圈）

Fig. 1 Study area and the locations of fishing ground centroids (yellow circles)

下载: 全尺寸图片幻灯片

图 2 2010−2016年7−11月柔鱼的月平均CPUE和EKE变化

Fig. 2 Variations of the monthly average CPUE and EKE from July to November during 2010−2016

下载: 全尺寸图片幻灯片

图 3 2010−2016年7−11月CPUE在各EKE区间内的累积频率分布

Fig. 3 Distribution of CPUE frequencies in relation to EKE from July to November during 2010−2016

下载: 全尺寸图片幻灯片

图 4 EKE与CPUE关系的GAM分析图

S为光滑样条函数的拟合值，表示其对CPUE的影响。虚线表示 95% 的置信区间，实线表示拟合后平均值

Fig. 4 GAM analysis of the relationship between EKE and CPUE

S is the fitted value of smoothing spline functions, which represent their impacts on CPUE. Dashed lines indicate 95% confidence intervals, solid line indicates the mean of fitted data

下载: 全尺寸图片幻灯片

图 5 2010−2016年7−11月CPUE与黑潮延伸体EKE_A相关变化图

虚线表示每年的平均值，实线表示拟合后平均值

Fig. 5 Variations of the monthly average CPUE and EKE_A of the Kuroshio Extension from July to November during 2010−2016

Dashed lines indicate the average of each year, solid line indicates the mean of fitted data

下载: 全尺寸图片幻灯片

图 6 2010−2016年7−11月黑潮延伸体各子区域的EKE变化

Fig. 6 Variations of the EKE in sub-areas of the Kuroshio Extension from July to November during 2010−2016

下载: 全尺寸图片幻灯片

图 7 2010−2016年7−11月CPUE渔场分布重心变化

Fig. 7 Fishing ground centroids from July to November, 2010−2016

下载: 全尺寸图片幻灯片

图 8 不同区域DIST与CPUE关系的GAM分析

Fig. 8 GAM analysis of the relationship between DIST of sub-areas and CPUE

下载: 全尺寸图片幻灯片

图 9 2013−2015年8−10月渔场重心与月平均EKE分布图（黄色圆圈表示渔场重心）

Fig. 9 Maps of fishing ground centroids (yellow circles) with backgrounds of monthly average EKE from August to October, 2013−2015

下载: 全尺寸图片幻灯片

表 1 CPUE纬度重心与黑潮延伸体EKE的相关关系

Tab. 1 Correlations of the latitudinal centroids of CPUE to EKE of the Kuroshio Extension

年/份	7月	8月	9月	10月	11月
2010	0.77_D	0.79_B	P>0.05	0.69_D	P>0.05
2011	0.55_E	0.91_B	P>0.05	0.85_C	P>0.05
2012	0.81_D	0.71_B	0.91_E	0.82_C	P>0.05
2013	0.86_D	0.96_B	P>0.05	0.70_C	P>0.05
2014	0.51_E	0.87_C	0.86_C	0.83_C	P>0.05
2015	0.84_E	0.73_B	0.36_C	P>0.05	P>0.05
2016	0.74_D	0.82_B	0.60_C	P>0.05	P>0.05
注：表中有系数值时均为P < 0.01；_B、C、D、E表示子区域。

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