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学科主题: Marine & Freshwater Biology
题名: The growth patterns of juvenile and precocious Chinese mitten crabs, Eriocheir sinensis (Decapoda, Grapsidae), stocked in freshwater lakes of China
作者: Jin, G ; Li, Z ; Xie, P
通讯作者: Xie, P, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Hubei, Peoples R China
关键词: CHIONOECETES-OPILIO BRACHYURA ; MALE SNOW CRAB ; CANCER-IRRORATUS ; ROCK CRAB ; SIZE ; TEMPERATURE ; MATURITY ; SALINITY ; MAJIDAE ; GULF
刊名: CRUSTACEANA
发表日期: 2001
卷: 74, 期:0, 页:261-273
收录类别: SCI
部门归属: Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol China, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Hubei, Peoples R China
摘要: Stocking experiments with Eriocheir sinensis were conducted in two small, shallow lakes to study its growth pattern in 1994-1997. For the initially immature crabs, carapace width (CW) increases from 21.2 +/- 0.4 mm (mean +/- s.e.) for females and 22.3 +/- 0.5 mm for males in January, to 65.4 +/- 0.5 mm for females and 66.9 +/- 0.6 mm for males in October. There is no significant difference in CW and carapace length (CL), although there is a large difference in body weight (BW) between sexes in every month from January to August when crabs are juvenile, however, there are significant differences in CW, CL. and BW between sexes after September when the crabs become sexually mature. The growth curve from January to October fits a logistic equation and may be expressed as CW = 75.7 (1 + exp (0.914 - 0.011t))(-1) for females, and CW = 77.5 (1 + exp (0.889 - 0.011t))-1 for males, where CW is in mm, t in days. For precocious crabs (reaching maturity by the first autumn, CW does not change much from January to July, which indicates that precocious crabs stop growing. Like juveniles, the precocious crabs show no differences in CW and CL, but do show a statistically significant difference in BW between sexes.
WOS记录号: WOS:000168529000004
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/10006
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Recommended Citation:
Jin, G; Li, Z; Xie, P.The growth patterns of juvenile and precocious Chinese mitten crabs, Eriocheir sinensis (Decapoda, Grapsidae), stocked in freshwater lakes of China,CRUSTACEANA,2001,74():261-273
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