Research
| Title： | Sustainable farming practices of the Chinese mitten crab (Eriocheir sinensis) around Hongze Lake, lower Yangtze River Basin, China |
|---|---|
| First author： | Wang, Qidong; Liu, Jiashou; Zhang, Shengyu; Lian, Yuxi; Ding, Huaiyu; Du, Xue; Li, Zhongjie; De Silva, Sena S. |
| Journal： | AMBIO |
| Years： | 2016 |
| DOI： | 10.1007/s13280-015-0722-0 |
| Abstract： | Results of a survey of 156 Chinese mitten crab (Eriocheir sinensis) grow-out farms around Hongze Lake (118.48-118.72A degrees E; 33.36-33.38A degrees N) are reported. Area farmed has remained relatively unchanged but production (59 932 t in 2012) increased steadily over the last 7 years, indicative of the viability and sustainability of the farming system that has gradually replaced intensive Chinese major carp polyculture around Hongze Lake. Results showed that production range was 135-2400 kg ha(-1) cycle(-1) (mean 1144 +/- A 34). Crab yields correlated linearly to stocking density and conformed to a normal distribution curve, with 66.7 % of farms yielding 900 kg ha(-1) cycle(-1) or more. Yield was negatively correlated to pond size and capture size (p < 0.01), and farms with macrophyte coverage rate lower than 30 % of water surface were significantly (p < 0.05) lower than those exceeding 30 %. |
