Article (Scientific journals)
Taxonomic and functional diversities reveal different fish assemblage dynamics of stow net fishery in Haizhou Bay.
Fang, Guangjie; Zhang, Yazhou; Yu, Haolin et al.
2024In Heliyon, 10 (20), p. 39428
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Keywords :
Fish biodiversity; Fishery management; Functional redundancy; Traits
Abstract :
[en] Biodiversity is the cornerstone of marine fisheries. To ensure the prosperity of stow net fishery in Haizhou Bay, regular investigations of fishery resources are essential. However, most studies have primarily focused on taxonomic diversity while overlooking functional diversity. In this study, we examined both the taxonomic and functional diversity of fish assemblages based on abundance and functional traits from 2013 to 2018. Significant differences in taxonomic diversity were observed only between two seasons, whereas functional diversity showed significant differences across years, seasons and groups. Diversity indices exhibited negative linear relationships with catch per unit effort, except for functional evenness (FEve) and functional divergence. Twenty-seven out of 30 correlations between the two types of diversity indices were predominantly positive and synclastic, whether linear or nonlinear. Functional dispersion showed the most positive relationships with taxonomic diversities, while FEve exhibited gentle slopes. The functional redundancy curves indicated that the ecological stability and resilience of fish assemblages were vulnerable. The non-target fish group demonstrated a higher overlap in functions compared to the target fish group and the total fish group. In summary, the taxonomic and functional diversities revealed inconsistent statuses and trends of fish assemblages, with an evident decreasing trend in the non-target fish group requiring special attention. This study highlights that both taxonomic and functional diversity should be considered simultaneously in fish biodiversity investigations, which is crucial for establishing effective fish conservation systems.
Disciplines :
Aquatic sciences & oceanology
Author, co-author :
Fang, Guangjie ;  Zhejiang Marine Fisheries Research Institute, Zhoushan, 316201, China ; Key Laboratory of Sustainable Utilization of Technology Research for Fishery Resources of Zhejiang Province, Zhoushan, 316021, China ; Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Zhoushan, 316021, China ; Marine and Fisheries Institute, Zhejiang Ocean University, Zhoushan, 316022, China
Zhang, Yazhou;  Zhejiang Marine Fisheries Research Institute, Zhoushan, 316201, China ; Key Laboratory of Sustainable Utilization of Technology Research for Fishery Resources of Zhejiang Province, Zhoushan, 316021, China ; Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Zhoushan, 316021, China ; Marine and Fisheries Institute, Zhejiang Ocean University, Zhoushan, 316022, China
Yu, Haolin ;  Université de Liège - ULiège > Freshwater and OCeanic science Unit of reSearch (FOCUS) ; Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
Chen, Chuanxi;  College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361005, China
Liang, Jun;  Zhejiang Marine Fisheries Research Institute, Zhoushan, 316201, China ; Key Laboratory of Sustainable Utilization of Technology Research for Fishery Resources of Zhejiang Province, Zhoushan, 316021, China ; Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Zhoushan, 316021, China ; Marine and Fisheries Institute, Zhejiang Ocean University, Zhoushan, 316022, China
Tang, Yanli;  Fisheries College, Ocean University of China, Qingdao, 266003, China
Language :
English
Title :
Taxonomic and functional diversities reveal different fish assemblage dynamics of stow net fishery in Haizhou Bay.
Publication date :
30 October 2024
Journal title :
Heliyon
eISSN :
2405-8440
Publisher :
Elsevier Ltd, England
Volume :
10
Issue :
20
Pages :
e39428
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This research was supported by Zhejiang Provincial Natural Science Foundation of China under Grant No. LQ24C190010 and LGN21C190005 and Zhejiang Marine Fisheries Research Institute Science and Technology Foundation under Grant No. HYS-ZX-202306 and HYS-ZX-202307.
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