基于层次分析法的莱州湾鱼卵、仔稚鱼评估

作者采用层次分析法对莱州湾鱼卵、仔稚鱼群落结构进行评估,旨在为渔业水域生态环境保护和渔业资源的合理利用提供参考和依据。根据2014年5月、6月和9月对莱州湾鱼卵、仔稚鱼的调查结果,分别以生物、经济、化学3类评价指标构建层次结构模型,最终计算得到各站位评分。结果表明:2014年夏季到秋季的时间变化中,莱州湾鱼卵、仔稚鱼群落结构最优区域的分布存在由近岸向中央区域转移的明显趋势。同时,在评估结果方面,针对评估体系中化学指标的存在与否,莱州湾近岸区域相对于中央区域反应更加敏感。

Evaluating the fish eggs and juveniles in the Laizhou Bay using analytical hierarchy process

The community structure characteristics of fish eggs and juveniles were evaluated using analytical hierarchy process. This study aims to provide the reference and support for the protection of the ecological environment and the reasonable utilization of fishery resources in the Bohai Sea. The survey was conducted on the fish eggs and the juveniles in the Laizhou Bay in May, June, and September 2014. The hierarchy analysis model was composed of three types of indices such as biological index, economic index, and chemical index. The scores of all stations were calculated. Results demonstrated that the distribution of the optimal region showed an obvious trend from the inshore area to the central area in the Laizhou Bay from summer to autumn in 2014 and that the inshore area was more sensitive than the central area in the Laizhou Bay when the chemical indicator in the evaluation system was considered or not.