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Article

Sustainable Exploitation of Dominant Fishes in the Largest Estuary in Southeastern China

1
Fisheries College, Ocean University of China, Qingdao 266003, China
2
Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
*
Author to whom correspondence should be addressed.
Water 2020, 12(12), 3390; https://doi.org/10.3390/w12123390
Received: 20 October 2020 / Revised: 23 November 2020 / Accepted: 30 November 2020 / Published: 2 December 2020
(This article belongs to the Section Water, Agriculture and Aquaculture)
Globally, marine fisheries have declined under multiple stresses including overfishing, climate change, and habitat degradation. The Min River Estuary, as the largest estuary in southeastern China, has confronted this situation over recent decades. In this study, the dominant species of fish stocks in the Min River Estuary, including Coilia mystus, Cynoglossus abbreviates, Collichthys lucidus, Amblychaeturichthys hexanema, Polydactylus sextarius, Harpodon nehereus, and Secutor ruconius, were evaluated by the length-based Bayesian biomass estimator method (LBB). Outcomes could be grouped into three categories as healthy, showing the lowest exploitation rate (E: 0.31–0.43) and highest relative biomass (B/Bmsy: 1.30–1.90), including S. ruconius, C. mystus, and H. nehereus; overfished, with a medium E (0.50–0.58) and B/Bmsy (0.68–0.79), including A. hexanema and C. abbreviates; and collapsed, with the highest E (0.89–0.92) and lowest B/Bmsy (0.03–0.21), including C. lucidus and P.sextarius. Corresponding imperative countermeasures such as using larger-sized mesh gears and reducing fishing intensity should be deployed according to the current status of each species for sustainable fishery exploitation and fish conservation. View Full-Text
Keywords: Min River Estuary; LBB; dominant species; length frequency; conservation Min River Estuary; LBB; dominant species; length frequency; conservation
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MDPI and ACS Style

Wang, L.; Lin, L.; Li, Y.; Xing, Y.; Kang, B. Sustainable Exploitation of Dominant Fishes in the Largest Estuary in Southeastern China. Water 2020, 12, 3390. https://doi.org/10.3390/w12123390

AMA Style

Wang L, Lin L, Li Y, Xing Y, Kang B. Sustainable Exploitation of Dominant Fishes in the Largest Estuary in Southeastern China. Water. 2020; 12(12):3390. https://doi.org/10.3390/w12123390

Chicago/Turabian Style

Wang, Linlong, Li Lin, Yuan Li, Yankuo Xing, and Bin Kang. 2020. "Sustainable Exploitation of Dominant Fishes in the Largest Estuary in Southeastern China" Water 12, no. 12: 3390. https://doi.org/10.3390/w12123390

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