Redistribution of the lizardfish Harpadon nehereus in coastal waters of China due to climate change |
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Authors: | Wang Linlong Zhang Zhixin Lin Longshan Peng Xin Lin Li Kang Bin |
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Institution: | 1.Fisheries College, Ocean University of China, Qingdao, 266003, China ;2.Arctic Research Center, Hokkaido University, Sapporo, 001‐0021, Japan ;3.Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, China ;4.Zhejiang Mariculture Research Institute, Wenzhou, 325000, China ; |
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Abstract: | Climate change has the potential to greatly alter species distributions and threatens biodiversity in marine ecosystems. Mapping changes in species distribution patterns under climate change will help facilitate management strategies to maintain ecosystem structure and function. The lizardfish Harpadon nehereus is an aggressive predator that has experienced rapid population growth along the coast of China in recent decades, compressing the ecological niches of other marine species and disrupting food webs. If this species’ range is shifting due to climate change, it could further impact the integrity of ecological communities. To map the distribution of H. nehereus, we developed an ensemble species distribution model and projected the present and future habitat suitability in Chinese coastal waters. Annual mean benthic water temperature was identified as the most important variable affecting the projected distribution of H. nehereus, followed by water depth and salinity. Currently suitable habitats are along the coast from Guangxi Province to the southern Jiangsu Province. As climate changes, the southern portion of its distribution is predicted to recede with habitat losses, and the overall suitable habitat will shift northward. To avoid the potential impacts of H. nehereus redistribution, precautionary management based on species distribution modeling would help to maintain healthy marine ecosystems in the newly invaded areas. |
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