海洋工程环境评价中渔业资源价值损失的估算方法  

Estimating economic costs of potential fishery losses caused by marine engineering

作　　者：徐兆礼[1] 陈华[1,2] 

机构地区：[1]中国水产科学研究院东海水产研究所农业部海洋与河口渔业重点开放实验室,上海200090 [2]上海水产大学海洋学院,上海200090

出　　处：《中国水产科学》2008年第6期970-975,共6页Journal of Fishery Sciences of China

基　　金：上海市908专项(PJ1-1);中国近海海洋综合调查与评价(908)专项(908-02-01-03)资助

摘　　要：以中国南方近海某LNG接收站海洋工程分析和渔业资源调查数据为研究基础,评价该工程对附近海域渔业资源形成的物质损害。以此为案例,探讨中国海洋工程环境影响评价中渔业资源价值损失估算的基本方法。在现有科学条件下,对海洋工程引起渔业资源损失量进行精确计算暂时还难以实现,但可以寻求一个相对客观的方法,即首先要选择一个尽可能反映现场调查资料、符合生态学原理和渔业科学理论的评估方法。在此原则下,成鱼采用直接重量损失法评价;鱼卵、仔鱼和幼体采用长成推算法评价与采用的直接重量损失法相比较,"成长推算法"更具合理性。在长成推算法中,工程影响海域成体的平均体质量应通过不同物种各自尾数的比例和成体平均尾重加权平均求得。本研究旨为目前中国海洋工程环境影响评价和今后相关标准的修订提供参考。A method is proposed to estimate the potential fishery loss and consequent economic costs caused by marine engineering. Here we give a case study of the Liquefied natural gas （LNG） Projection, which was launched in the southern off shore area of East China Sea. By now, the acurate quantitative evaluation is still not available. Therefore, we attempted to explore a mathematical method to evaluate the potential fishery loss due to marine engineering, based on ecological and fishery principals and field investigation data. In our method, the loss of adult fish was determined by Weight Estimation （WE） ; while the economic losses of egg, larval, and juvenile fish were determined by Growth Estimation （GE）, concerning their potential growth capacity. According to GE, potential fishery losses of egg, larval, and juvenile fish should be converted into the potential average weight of the adult fish. Then we calculated the potential average weight of the adult fish for all species through weighted mean method by the percentage of every species in the total individual and their mean weight. Thus, the total potential fishery losses due to LNG were found. Finally, the economic losses were deduced by potential fishery losses and their marketing value.[ Journal of Fishery Sciences of China, 2008, 15 （6） ： 971-976]

关 键 词：海洋工程 环境评价 渔业资源 损失估算 

分 类 号：X37[环境科学与工程—环境工程]