YIELD MODELLING OF MITTEN CRAB, ERIOCHEIR SINENSIS IN YANGTZE LAKES
作者单位：Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 Hubei China
会议名称：《第十九届国际动物学大会》
会议日期：2004年
学科分类：090801[农学-水产养殖] 0908[农学-水产] 09[农学]
摘 要：正Mitten-crab-culture in Chinese lakes is undergoing reduction in profitability inasmuch as natural food sources are being over-exploited by heavy stocking. With purpose for sustainable crab fisheries, we carried out a study on empirical modelling of crab yield in 20 farms of 4 Yangtze lakes. The results show that submersed macrophytes is the key factor affecting crab yield （CY, kg/ha）. Hence, macrophyte bio-mass in winter and spring （ WBMac, SBMac, g/m2）, the time of stocking, is used as the driving variable to generate models: