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Evaluation of the effect of stock enhancement in the coastal waters of Guangdong, China

文献类型: 外文期刊

作者: Chen, P. 1 ; Qin, C. 1 ; Yu, J. 1 ; Shu, L. 1 ; Li, X. 1 ; Zhou, Y. 2 ; Yuan, H.;

作者机构: 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Sci Observing & Expt Stn South China Sea Fishery, Key Lab Marine Ranching Technol,Minist Agr, Guangzhou 510300, Guangdong, Peoples R China

2.Chinese Acad F

关键词: discrimination of recapture stocking quantity;fishing log-book survey;market survey;recapture benefit;recapture rate

期刊名称:FISHERIES MANAGEMENT AND ECOLOGY ( 影响因子:1.894; 五年影响因子:2.192 )

ISSN:

年卷期:

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收录情况: SCI

摘要: A total of 14.573 million fish fry and 96.32 million shrimp larvae were released across 31 locations into the coastal waters off Guangdong, China, in 2010. The released fish and shrimp were sampled through a combination of market and fishing log-book surveys. The combined fishery production reached 362 868 kg. The input-output ratio was 1:5.99 for released fish (over 3years) and 1:11.01 for released shrimp (over 2years). The average increase in income was 721 RMB per capita. Approximately 240 thousand fish (after 3years) and 1.2 million shrimp (after 2years) survived to sexual maturity and could contribute to the spawning stock. The stockings were approximately one-seventh of the fish and one-half of the shrimp stocking carrying capacities, respectively. Based on these results, the intensity of stocking could be increased. Stocking and recapture strategies should be adjusted to align with the optimal stocking carrying capacity determined from this study.

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