中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Seasonal distribution patterns and conservation gaps of blue sharks in the Indo-Western Pacific Ocean

文献类型:期刊论文

作者Zhang, Yuewen5; Lian, Peng4; Zhang, Xiong1,2,3,5
刊名DIVERSITY AND DISTRIBUTIONS
出版日期2024-03-06
页码12
关键词conservation planning marine protected areas overfishing pelagic shark seasonal habitat uses species distribution model
ISSN号1366-9516
DOI10.1111/ddi.13828
通讯作者Zhang, Xiong(zhangx758@mail.sysu.edu.cn)
英文摘要Aim: Oceanic sharks play an important role in maintaining the stability and biodiversity of marine ecosystems, and yet they are among the most threatened taxa worldwide. Currently, large spatial-scale distribution patterns and conservation gaps are poorly known for most species since they are challenging to study. To address the problem, we here use an integrated approach with an illustration with the blue shark (Prionace glauca), a common bycatch oceanic species. Location: Indo-Western Pacific Ocean (IWPO). Methods: We first collated decades of species occurrences and marine environmental datasets from open-access sources. We then applied ensembled species distribution models (SDMs) to predict its seasonal distributions and evaluated the model performance using true skill statistic (TSS) and area under the receiver-operating characteristic curve (AUC). We finally conducted spatial analyses (e.g. bivariate hotspot analyses) to identify conservation gaps/opportunities based on the predicted distribution maps and two additional datasets, namely, marine protected areas (MPAs) and fishing effort. Results: (1) Both seasonal SDMs performed well (mean TSS > 0.8, AUC > 0.95), and the results suggested that blue sharks were widely distributed in the IWPO with some seasonal differences in ecological niches and distributions (mainly in the West Indian Ocean and the Northwest Pacific Ocean); (2) large MPAs and shark sanctuaries covered comparable, small portions (4%-9%) of blue shark habitats, but these locations (in MPAs and sanctuaries) varied between seasons; (3) fishery-shark conflict hotspots also varied between seasons with some located in or close to large MPAs and sanctuaries. Main conclusions: We provide seasonal (cold vs. warm) distribution maps of blue sharks across the IWPO to advance their conservation and management. We highlight the importance of strengthening management both in and near large MPAs and shark sanctuaries. Our study contributes a feasible integrated approach to reveal seasonal distribution patterns and conservation opportunities for oceanic sharks.
WOS关键词SPECIES DISTRIBUTION MODELS ; MARINE PROTECTED AREAS ; PRIONACE-GLAUCA ; PELAGIC SHARKS ; PREDICTION ; MOVEMENT ; BEHAVIOR ; BYCATCH
资助项目Science and Technology Planning Projects of Guangdong Province ; Guangdong Basic and Applied Basic Research Foundation[2022A1515010640] ; [2021B1212110002]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001180244000001
出版者WILEY
源URL[http://ir.qdio.ac.cn/handle/337002/184855]  
专题海洋研究所_海洋环流与波动重点实验室
通讯作者Zhang, Xiong
作者单位1.Sun Yat Sen Univ, Sch Ecol, 66 Gongchang Rd, Shenzhen 518107, Guangdong, Peoples R China
2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
3.Sun Yat Sen Univ, Sch Marine Sci, Zhuhai, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China
5.Sun Yat Sen Univ, Sch Ecol, Shenzhen, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Yuewen,Lian, Peng,Zhang, Xiong. Seasonal distribution patterns and conservation gaps of blue sharks in the Indo-Western Pacific Ocean[J]. DIVERSITY AND DISTRIBUTIONS,2024:12.
APA Zhang, Yuewen,Lian, Peng,&Zhang, Xiong.(2024).Seasonal distribution patterns and conservation gaps of blue sharks in the Indo-Western Pacific Ocean.DIVERSITY AND DISTRIBUTIONS,12.
MLA Zhang, Yuewen,et al."Seasonal distribution patterns and conservation gaps of blue sharks in the Indo-Western Pacific Ocean".DIVERSITY AND DISTRIBUTIONS (2024):12.

入库方式: OAI收割

来源:海洋研究所

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