| 网箱养殖区野生许氏平的种群数量 |
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| 引用本文： | 葛长字,方建光.网箱养殖区野生许氏平的种群数量[J].吉首大学学报(自然科学版),2006(6). |
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| 作者姓名： | 葛长字 方建光 |
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| 作者单位： | 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，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 山东青岛266071，中国海洋大学海洋渔业系，山东青岛266003，山东青岛266071 |
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| 基金项目： | 国家973计划资助项目(2006CB400608) |
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| 摘 要： | 利用非线性回归法,评估得到爱莲湾野生许氏平的丰度为0.01 ind/m2,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.
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| 关 键 词： | 鱼类网箱养殖 爱莲湾 种群评估 生态效应 |
Population Size of Wild Black Stockfish Sebastodes Fuscescens in Fish Cage Culture Zones |
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| GE Chang-zi.Population Size of Wild Black Stockfish Sebastodes Fuscescens in Fish Cage Culture Zones[J].Journal of Jishou University(Natural Science Edition),2006(6). |
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| Authors: | GE Chang-zi |
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| Institution: | GE Chang-zi~ |
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| Abstract: | 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. |
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| Keywords: | fish cage aquaculture Ailian Bay stock assessment ecological effect |
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