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Yunlong Chen, Xiujuan Shan, Dingyong Zeng, Harry Gorfine, Yinfeng Xu, Qiang Wu, Tao Yang, Xianshi Jin. Estimating seasonal habitat suitability for migratory species in the Bohai Sea and Yellow Sea: a case study of Tanaka's snailfish (Liparis tanakae)[J]. Acta Oceanologica Sinica. doi: 10.1007/s13131-021-1912-1
Citation: Yunlong Chen, Xiujuan Shan, Dingyong Zeng, Harry Gorfine, Yinfeng Xu, Qiang Wu, Tao Yang, Xianshi Jin. Estimating seasonal habitat suitability for migratory species in the Bohai Sea and Yellow Sea: a case study of Tanaka's snailfish (Liparis tanakae)[J]. Acta Oceanologica Sinica. doi: 10.1007/s13131-021-1912-1

Estimating seasonal habitat suitability for migratory species in the Bohai Sea and Yellow Sea: a case study of Tanaka's snailfish (Liparis tanakae)

doi: 10.1007/s13131-021-1912-1
Funds:  The National Key R&D Program of China under contract No. 2018YFD0900906; the National Natural Science Foundation of China under contract No. 31872692; the Youth Talent Program Supported by Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao) under contract No. 2018-MFS-T05; the Central Public-Interest Scientific Institution Basal Research Fund, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences under contract No. 20603022019010.
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  • Corresponding author: E-mail: shanxj@ysfri.ac.cn
  • Received Date: 2020-12-09
  • Accepted Date: 2021-08-03
  • Available Online: 2022-05-10
  • Acquiring a comprehensive and accurate understanding of habitat preference is essential for species conservation and fishery management, especially for mobile species that migrate seasonally. Presence and absence data from field surveys are recommended when available due to their high reliability. Using field survey data, we investigated seasonal habitat suitability requirements for Tanaka's snailfish (Liparis tanakae) in the Bohai Sea and Yellow Sea (BSYS) via a machine-learning, random forests (RFs) method. Five environmental, biologically relevant variables (bottom temperature, bottom salinity, current velocity, depth and primary productivity) were used to build the ecological niches between the presence/absence data and suitable habitat. In addition, the degree to which false absence data might impact model performance was evaluated. Our results indicated that RFs provided accurate predictions, with seasonal habitat suitability maps of L. tanakae differing substantially. Bottom temperature and salinity were identified as important factors influencing the distribution of L. tanakae. False absence data were found to have negative effects on model performance and the decrease in evaluation metrics was usually significant (P<0.05) after 30% or more errors were added to the absence data. Through identifying highly suitable areas within its geographic range, our study provides a baseline for L. tanakae that can be further applied in ecosystem modelling and fishery management in the BSYS.
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