| 基于空间自相关模型的南极半岛北部水域南极磷虾渔场时空演变特征 |
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| 引用本文： | 赵国庆,宋学锋,徐博,杨嘉樑,李帅,饶欣,黄洪亮,张衡.基于空间自相关模型的南极半岛北部水域南极磷虾渔场时空演变特征[J].水产学报,2022,46(3):368-378. |
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| 作者姓名： | 赵国庆 宋学锋 徐博 杨嘉樑 李帅 饶欣 黄洪亮 张衡 |
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| 作者单位： | 上海海洋大学海洋科学学院,中国水产科学研究院东海水产研究所,中国水产科学研究院东海水产研究所,中国水产科学研究院东海水产研究所,中国水产科学研究院东海水产研究所,中国水产科学研究院东海水产研究所,中国水产科学研究院东海水产研究所 |
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| 基金项目： | 国家重点研发计划(2018YFC1406802) |
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| 摘 要： | 南极磷虾是南极海域生态系统的关键物种,是南极渔业的主要捕捞对象,其渔场具有显著的时空分布特征.为明晰南极半岛北部水域磷虾渔场的变动情况,本研究根据中国2010—2020年南极磷虾渔业统计资料,运用全局Moran's I指数和热点分析对该水域磷虾渔场的时空分布特征进行了分析.结果显示,南极半岛北部水域磷虾渔获量在空间分布...
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| 关 键 词： | 南极磷虾 空间自相关 Global Moran’s I 热点分析 南极半岛 |
| 收稿时间： | 2021/8/31 0:00:00 |
| 修稿时间： | 2022/2/18 0:00:00 |
Spatio-temporal evolution characteristics of Antarctic krill (Euphausia superba) fishing ground in the northern waters of Antarctic Peninsula based on spatial autocorrelation model |
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| ZHAO Guoqing,SONG Xuefeng,XU Bo,YANG Jialiang,LI Shuai,RAO Xin,HUANG Hongliang,ZHANG Heng.Spatio-temporal evolution characteristics of Antarctic krill (Euphausia superba) fishing ground in the northern waters of Antarctic Peninsula based on spatial autocorrelation model[J].Journal of Fisheries of China,2022,46(3):368-378. |
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| Authors: | ZHAO Guoqing SONG Xuefeng XU Bo YANG Jialiang LI Shuai RAO Xin HUANG Hongliang ZHANG Heng |
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| Institution: | College of Marine Sciences,Shanghai Ocean University,Key Laboratory of Oceanic and Polar Fisheries,Ministry of Agriculture and Rural Affairs,Key Laboratory of Oceanic and Polar Fisheries,Ministry of Agriculture and Rural Affairs,Key Laboratory of Oceanic and Polar Fisheries,Ministry of Agriculture and Rural Affairs,Key Laboratory of Oceanic and Polar Fisheries,Ministry of Agriculture and Rural Affairs,Key Laboratory of Oceanic and Polar Fisheries,Ministry of Agriculture and Rural Affairs,Key Laboratory of Oceanic and Polar Fisheries,Ministry of Agriculture and Rural Affairs |
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| Abstract: | Antarctic krill is a key species of Antarctic marine ecosystem and the main fishing object of Antarctic fishery, whose fishing ground has significant temporal and spatial distribution characteristics. In order to clarify the changes of krill fisheries in the northern waters of the Antarctic Peninsula, based on the statistical data of Antarctic krill fisheries in China from 2010 to 2020, this study analyzed the temporal and spatial distribution characteristics of krill fisheries in this waters by using the global Moran''s I index and hot spot analysis. The results showed that the spatial distribution of krill catches in the northern waters of the Antarctic Peninsula evolved from dispersion to concentration, and gradually transitioned from the north of the South Shetland Islands (SSI) to the Bransfield Strait (BS), with high values distributed along the land. The high value of catch per unit effort (CPUE) mainly occurred in the north of SSI and the side near the Antarctic Peninsula in BS, which was distributed along the land. The krill fisheries in the northern waters of the Antarctic Peninsula showed significant spatial aggregation from 2010 to 2020, and the spatial autocorrelation in 2014, 2015, 2016, 2018 and 2020 was relatively weak. The temporal and spatial evolution characteristics of hot spots and cold spots in the distribution of krill fishing grounds were obvious. The hot spots gradually migrated from the north of SSI to BS, the north of SSI gradually changed from hot spots to cold spots, and the BS gradually changed from cold spots to hot spots. This study discussed the temporal and spatial distribution characteristics of krill fishery, which could not only provide a scientific basis for further research on krill population distribution and fishery formation mechanism, but also provided basic data for improving the production efficiency of krill fishery. |
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