Sustainable fisheries in shallow lakes: an independent empirical test of the Chinese mitten crab yield model

Haijun Wang; Xiaomin Liang; Hongzhu Wang

doi:10.1007/s00343-017-6045-1

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Sustainable fisheries in shallow lakes: an independent empirical test of the Chinese mitten crab yield model

OriginalPaper | Updated：2023-05-16

- Sustainable fisheries in shallow lakes: an independent empirical test of the Chinese mitten crab yield model
- Sustainable fisheries in shallow lakes: an independent empirical test of the Chinese mitten crab yield model
- 海洋湖沼学报（英文） 2017年35卷第4期页码：894-901
- Affiliations：
  
  State Key Laboratory of Freshwater Ecology and Biotechnology Institute of Hydrobiology Chinese Academy of Sciences
- Author bio：
- Funds：
  
  Supported by the State Key Laboratory of Freshwater Ecology and Biotechnology (Nos. 2014FB14, 2011FBZ14), the Hubei Province (No. 2001AA201A05), the National Basic Research Program of China (973 Program) (No. 2008CB418006), and the Chinese Academy of Sciences (No. KZCX1-SW-12);WANG Haijun was supported by the Youth Innovation Association of Chinese Academy of Sciences (No. 2014312)
- DOI：10.1007/s00343-017-6045-1
  中图分类号：
- 网络首发：2016-08-12，
  
  纸质出版：2017
- Accepted：
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Sustainable fisheries in shallow lakes: an independent empirical test of the Chinese mitten crab yield model[J]. 海洋湖沼学报（英文）, 2017,35(4):894-901.

Wang, H., Liang, X. & Wang, H. Sustainable fisheries in shallow lakes: an independent empirical test of the Chinese mitten crab yield model., Chin. J. Ocean. Limnol. 35, 894–901 (2017). https://doi.org/10.1007/s00343-017-6045-1
Sustainable fisheries in shallow lakes: an independent empirical test of the Chinese mitten crab yield model[J]. 海洋湖沼学报（英文）, 2017,35(4):894-901. DOI： 10.1007/s00343-017-6045-1.

Wang, H., Liang, X. & Wang, H. Sustainable fisheries in shallow lakes: an independent empirical test of the Chinese mitten crab yield model., Chin. J. Ocean. Limnol. 35, 894–901 (2017). https://doi.org/10.1007/s00343-017-6045-1 DOI：

摘要

Abstract

Next to excessive nutrient loading

intensive aquaculture is one of the major anthropogenic impacts threatening lake ecosystems. In China

particularly in the shallow lakes of mid-lower Changjiang (Yangtze) River

continuous overstocking of the Chinese mitten crab (Eriocheir sinensis) could deteriorate water quality and exhaust natural resources. A series of crab yield models and a general optimum-stocking rate model have been established

which seek to benefit both crab culture and the environment. In this research

independent investigations were carried out to evaluate the crab yield models and modify the optimum-stocking model. Low percentage errors (average 47%

median 36%) between observed and calculated crab yields were obtained. Specific values were defined for adult crab body mass (135 g/ind.) and recapture rate (18% and 30% in lakes with submerged macrophyte biomass above and below 1 000 g/m2) to modify the optimum-stocking model. Analysis based on the modified optimum-stocking model indicated that the actual stocking rates in most lakes were much higher than the calculated optimum-stocking rates. This implies that

for most lakes

the current stocking rates should be greatly reduced to maintain healthy lake ecosystems.

关键词

Keywords

references

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