网箱养殖区野生许氏平的种群数量  

Population Size of Wild Black Stockfish Sebastodes Fuscescens in Fish Cage Culture Zones

作　　者：葛长字[1] 方建光[1] 

机构地区：[1]农业部渔业资源可持续利用重点开放实验室黄海水产研究所

出　　处：《吉首大学学报（自然科学版）》2006年第6期99-102,共4页Journal of Jishou University(Natural Sciences Edition)

基　　金：国家973计划资助项目(2006CB400608)

摘　　要：利用非线性回归法，评估得到爱莲湾野生许氏平蚰的丰度为0．01ind／m^2，种群数量大体和5．6个大型抗风浪网箱或135个筏式网箱放养的鱼类数量相当．野生鱼类将产生正或负的生态效应。和养殖鱼类竞争DO,因排泄而支持爱莲湾初级生产所需氮的0．8％-1、3％．同时消耗残饵和排出粪便．The density of wild Black Stockfish Sebastodes fuscescens in fish cage culture zones in Ailian Bay is assessed as 0.01 ind/m^2 by one non-line regression method. And the population size of these wild fish is equal to the number of cultivated fish in 5.6 floating net cages or 135 raft net cages. These wild fish may bring positive or negative ecological effects to fish farms, e. g., these fish will compete DO with cultivated fish and provide 0.8 % - 1.3 % of nitrogen demand for primary production in the whole bay. Besides, the wild fish may consume feed remains and produce feces.

关 键 词：鱼类网箱养殖 爱莲湾 种群评估 生态效应 

分 类 号：S931.4[农业科学—渔业资源]