气候变化领域集成服务门户(CCPortal): Analyzing fishery data and exploring the resource status of Antarctic krill based on its environmental dependence

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DOI	10.1111/fog.12674
	Analyzing fishery data and exploring the resource status of Antarctic krill based on its environmental dependence
	Wang, Rui; Liu, Shigang; Zhang, Ran; Li, Hai; Song, Puqing; Li, Yuan; Lin, Longshan
发表日期	2024
ISSN	1054-6006
EISSN	1365-2419
英文摘要	Antarctic krill Euphausia superba is a key species in the Southern Ocean ecosystem and has important ecological value. It is also one of the main fishery resources in the Southern Ocean with high economic value. In recent years, with the development of krill fishery and rapid climate change, the conservation and management of krill resources have faced unprecedented challenges. The krill resource is different from the general fishery resources. Due to the krill schooling characteristics, fishery data has some advantages over scientific survey data. Reviewing and analyzing the krill fishery data is necessary. Therefore, in this study, four fishery resource indices (FRIs) were calculated based on Antarctic krill fishery data, and based on the environmental dependence of Antarctic krill, the FRI with the strongest environmental dependence was screened by using the Gradient Forest Model, and the step changes of the FRI with strongest environmental dependence was examined by using the sequential t-test analyses of regime shifts (STARS). The generalized additive model (GAM) to analyze the correlation between the FRI with the strongest environmental dependence and the main environmental factors, and then explore the resource status of Antarctic krill in the study area. The model results showed that the FRI_hual had the strongest environmental dependence and was a better indicator of the status of the Antarctic krill in the study area than the others. In the 2009-2010 year, FRI_hual had an obvious regime shift. The interaction of environmental factors ice_area_2 and SSH_1 has a great impact on FRI_hual. Methods used and results obtained in the study can provide new ideas and a scientific reference for future work, including integrated stock assessment of krill and krill resource monitoring, conservation, and management based on the ecosystem.
英文关键词	Antarctic krill; environmental dependence; fishery data; GAM; gradient forest model; marine environment
语种	英语
WOS研究方向	Fisheries ; Oceanography
WOS类目	Fisheries ; Oceanography
WOS记录号	WOS:001193298900001
来源期刊	FISHERIES OCEANOGRAPHY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/302601
作者单位	Third Institute of Oceanography, Ministry of Natural Resources; Third Institute of Oceanography, Ministry of Natural Resources
推荐引用方式 GB/T 7714	Wang, Rui,Liu, Shigang,Zhang, Ran,et al. Analyzing fishery data and exploring the resource status of Antarctic krill based on its environmental dependence[J],2024.
APA	Wang, Rui.,Liu, Shigang.,Zhang, Ran.,Li, Hai.,Song, Puqing.,...&Lin, Longshan.(2024).Analyzing fishery data and exploring the resource status of Antarctic krill based on its environmental dependence.FISHERIES OCEANOGRAPHY.
MLA	Wang, Rui,et al."Analyzing fishery data and exploring the resource status of Antarctic krill based on its environmental dependence".FISHERIES OCEANOGRAPHY (2024).