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大型海藻孔石莼在工厂化海水养殖中的生物修复及其应用前景 总被引：1，自引：0，他引：1
海水养殖业是山东半岛蓝色经济区建设产业群的重要组成部分.在大力发展蓝色经济的宏观指导下,海水养殖业特别是工厂化海水养殖业得以快速发展.近几年,除了较早发展的室内鲍鱼养殖外,我国许多海水养殖品种和养殖规模都有所扩大,如真鲷、牙鲆、美国红鱼、大西洋鲑等.在以低碳养殖(低能耗、低排放、低污染)为产业发展方向的政策指引下,一种对环境友好、对生物无害、可高值化利用的养殖模式——海基(生态型)和陆基(集约型)两大类型的工厂化养殖模式成为养殖业发展的方向.大型藻类由于生长速度快,海水净化能力强,用其在水产养殖过程中替代化学和微生物方法净化水质,维持养殖生态平衡,取得了良好的效果. 相似文献
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Perinereis aibuhitensis(Grube, 1878) lives in marine sediments of estuary or shoal areas, where substrate has some crucial environmental factors affecting its burrowing and distribution. In order to provide basic data for the habitat selection and suitability evaluations of the artificial aquaculture of P. aibuhitensis, this paper conducted a quantified analysis of its burrowing ability and explored its behavioral preferences in different substrates,including mud(75 μm), fine sand(125–250 μm), medium sand(250–500 μm), coarse sand(500–2 000 μm), gravel(2 000–4 000 μm) and ceramsite(4 000–8 000 μm). The research results revealed that substrate grain size significantly affected the burrowing time, burrowing rate, burrowing depth and distribution rate(P0.01).Moreover, P. aibuhitensis demonstrated preferential selections relating to substrate grain sizes, had higher burrowing ability in ceramsite, mud and fine sand compared with other substrates. The strongest burrowing ability and the highest distribution rate were observed in ceramsite. The study indicated that P. aibuhitensis was sensitive to substrate grain size, which also had an impact on its burrowing process and population distribution.In the natural sea, substrates mainly composed of mud and fine sand are fit for aquaculture and stock enhancement. Based on behavioral preferences and ecological rehabilitation function of P. aibuhitensis, this paper proposes a symbiotic system of marine animals and halophytes, and constructs an ecosystem model of"Marine fish-Halophytes-Perinereis aibuhitensis" with P. aibuhitensis as the link. 相似文献
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