There is a very simple and weak structure of ecosystem eomposeingof producer and primary comsumer in shrimp culture pond. Where theorgsnic detritus input rate into sediments and eutrophication are allheigh. In this environment,phytoplancton always queatly bloom, sometimeblue or green algae are dominant, diversity index is lower and bacteriaor virus devolep greatly. For protecting the culture environment andproduction we consider it is important to control accumulating rate ofdetritus in sediments of culture pond by standing benthos feedingdetritus in it. taut to control accumulating rate ofdetritus in sediments of culture pond by standing
浅海岩礁环境系高生产力区,在中、高纬度海域中,由大型海藻和大叶藻(Zostera-marina)所构成的初级生产力常为浮游植物初级生产力的数倍(Miller et al.,1971)。同时,此种环境又是以大型藻类或有机碎屑为食物的珍贵海产品鲍鱼(Haliotis)、刺参(Siichopus)、海胆(Strongylocentrotus)等的洒息场所和采捕作业区;还是一些优质鱼类星鳗(Astroconger mytiaster)、鲈(Lateolobrax japonicus)等的藏匿场所和游钓渔业的渔场;重要经济藻类石花菜(Gelidium)等也在此环境中定着、生长。所以,浅海岩礁的资源开发前景很好。为了促进上述珍贵海产品的增、养殖生产和发展游钓渔业,
