海水网箱养殖的关键生物过程研究:花鲈生理代谢  

Study on key biological process of cage mariculture:Metabolism of Lateolabrax japonicus

作　　者：葛长字[1] 方建光[2] 关长涛[2] 王巍[2] 蒋增杰[2] 

机构地区：[1]中国科学院海洋研究所 [2]农业部渔业资源可持续利用重点实验室中国水产科学研究院黄海水产研究所,青岛266071

出　　处：《海洋水产研究》2007年第2期45-50,共6页Marine Fisheries Research

基　　金：国家973计划项目(2006B400608);国家863计划项目(2006AA10Z414)资助

摘　　要：2004年4～12月对爱伦湾抗风浪网箱养殖区养殖花鲈（Lateolabrax japonieus）的现存量、生长进行了实地调查和模型分析。结果表明，7～9月是研究爱伦湾鱼类养殖水域养殖容量的关键季节。夏季鱼类的摄食最活跃，鲈鱼的摄食率为1．4％～4．4％，8月最大。残饵率在11．0％～28．0％之间，7～9月最高。1个养殖周期内，约有38．6t DO被养殖鲈鱼消耗，7～9月进入耗氧高峰期。养殖鱼类在网箱养殖区域的营养盐循环中起着重要的作用。花鲈4～12月向爱伦湾输出0．8t氨氮，1．0～1．6t N。在面积（2．0×10^5）m^2的抗风浪网箱养殖区，养殖鱼类因排泄而再循环的N能满足浮游植物生产所需N的17．2％～27．5％。养殖花鲈因排粪向水体输出12．0t颗粒物。Investigation was made on extant stock and growth of Lateolabrax japonicus cultured in floating cages in Ailun Bay from April to December of 2004, and model analyses were carried out simultaneously. The results indicated that from July to September was the key season for studying the carrying capacity of fish farming water in Ailun Bay. The feeding behaviour of cultured Lateolabrax japonicus became most active in summer, with the feeding rate being 1.4 %～4.4% and the largest values being found in August. Normally, uncaptured feed waste percentage varies from 11.0 % to 28.0 %, while the largest values appeared from July to August. About 38.6 t DO were consumed by cultured Lateolabraxjaponicus in one culture period, the fastigium of oxygen consumption being from July to September. In addition, the cultured fish played an important role in nutrient circulation in the cage culture areas. About 0.08t ammonia or 1. 0 ～ 1. 6 t nitrogen were exported into Ailun Bay by the cultured Lateolabrax japonicus . In the floating cage culture areas with 2.0 ;〈 105 me , the nitrogen excreted by cultured Lateolabraxjaponicus could meet 17.2 %～27.5% demands for phytoplankton production. From April to December, 12. It faecal waste from fish culture were released into marine environment.

关 键 词：鲈鱼 抗风浪网箱 代谢 生态效应 爱伦湾 

分 类 号：S967.3[农业科学—水产养殖]