长江瑞昌江段四大家鱼鱼苗资源变化  

The Resource Evolvement of Chinese Carps Fry in Ruichang Section of the Yangtze River

作　　者：贺刚[1] 付辉云[1] 万正义 方春林[1] 胡成钰[3] 毛慧玲[3] 王庆萍[1] 吴斌[1] 

机构地区：[1]江西省水产科学研究所,南昌330039 [2]江西省瑞昌长江四大家鱼原种场,江西瑞昌332200 [3]南昌大学生命科学院,南昌330031

出　　处：《湖北农业科学》2015年第22期5673-5676,共4页Hubei Agricultural Sciences

基　　金：江西省农业新技术示范推广项目(赣财农指[2012]185号);赣鄱英才555工程刀鲚调查专项基金项目;江西省现代农业产业技术体系建设专项资金项目(JXARS-04)

摘　　要：为了评估长江瑞昌段四大家鱼幼鱼资源和繁殖情况,分析了2001~2014年四大家鱼幼鱼捕捞量。2001~2014年,长江瑞昌江段四大家鱼鱼苗表现以下的变化规律：1在捕捞的各类鱼苗中,四大家鱼鱼苗占6.22%~20.08%;2在四大家鱼鱼苗中,2003年以前草鱼苗所占比例最大,其次青鱼苗;2004年以后,鲢鱼苗所占比例呈上升趋势,2014年增加到69.57%;3草鱼苗近几年的所占比例呈下降趋势,而青鱼、鳙鱼苗近几年波动相对较小。In 2001-2014, a systematic study on the dynamic larvae abundance of the four domestic Chinese carps was per- formed to assess the fish resource status and breeding population in Ruichang section of the Yangtze River. From 2001 to 2014, the larve of the four domestic fishes in Ruichang section show the following change laws： ① The four domestic fishes larve accounted for 6.22%-20.08% in the total larve abundance; ②In the larval composition of the four domestic fishes, before 2004, grass carp occupied the highest proportion, then was black carp; then from 2004 to 2014, the larve proportion of silver carp was rising, and reached to 69.57% in 2014; ③The proportion of grass carp in the larve abundance of the four domestic fishes showed decreasing trend, then the proportion volatility of black carp and bighead carp was relatively small in recent years.

关 键 词：长江瑞昌江段 四大家鱼 幼鱼 资源量 

分 类 号：S937.3[农业科学—渔业资源]