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中文摘要：
正确评价河口及邻近海域鱼类优先保护次序,对河口生态管理以及维持生物多样性具有重要意义,而鱼类优先保护次序评价指标体系和评价方法研究是珍稀鱼类保护的基础。在实地调查和资料收集的基础上,借助专家咨询和相关研究成果提出了由物种濒危系统、遗传价值系统和物种价值系统3个子系统及其指标集组成的鱼类优先保护评价指标体系,确定了评价等级和标准。为克服权重确定的主观随意性,基于信息熵原理确定各指标的客观权重,在此基础上,引入理想点法进行鱼类优先保护多目标决策评价,进而建立了鱼类优先保护次序的评价模型,最后以建立的模型对漳卫新河口及邻近海域鱼类优先保护次序进行评价。结果表明,计算方法简便,评价结果合理,在河口生态管理中具有一定的应用价值。
英文摘要：
Correct evaluation of priority conservation order of fishes in the estuary and offshore has important significance for estuarine ecosystem management and maintenance of biological diversity.A set of index system and method of evaluation of priority conservation order of fishes is preferred to protect race fishes.Based on field survey and information collection,a new evaluation index system of priority conservation order of fishes is established by means of expert consultation and related research achievements,which is consisted of subsystems of the endangered species system,the genetic value system and the species value system.At the same time,the evaluation grade and standard of priority conservation order of fishes is determined.In order to overcome the subjective random of weight determination,the objective weights of evaluation indexes are calculated based on the information entropy principle.On the basis of this,ideal point method is introduced into multi-objective decision making evaluation of priority conservation order of fishes in the estuary and offshore.Furthermore,a model is established to evaluate priority of conservation order of fishes.Finally,the model is applied to evaluate priority conservation order of fishes in the Zhangweixin River Estuary and Offshore.The result shows that the method is very simple and the evaluation result is reliable,so it can be widely applied in estuarine ecosystem management.
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