摘要
养殖环境评价是衡量海水养殖活动是否健康、可持续的重要环节。为掌握北方典型规模化养殖海湾——桑沟湾沉积环境质量状况,于2017年4和7月对桑沟湾全湾海域进行大型底栖动物走航调查取样,分析了大型底栖动物的种类组成、生物量、栖息密度及群落结构;运用AMBI(AZTI’s marine biotic index)指数法和M-AMBI(Multivariate-AMBI)指数法,分析了大型底栖动物群落受干扰程度,评价了沉积环境质量状况。研究表明,在两次调查中多毛类均为优势种,其中4月多毛类36种,占总种数63.16%;7月32种,占总种数的60.38%。AMBI法的评估结果表明,调查海域各站位以受到轻度扰动为主,个别站位受到中度扰动和无扰动,干扰程度从小到大依次为海带区<海草区<混养区<贝类区;M-AMBI法的评估结果表明,生态环境质量等级为良或优的站位占60.00%~68.42%,海草区环境质量状况要明显好于养殖区。多营养层次综合养殖模式缓解了桑沟湾近海生态系统的养殖压力,使得桑沟湾受人为干扰较小,海草区环境质量为优,贝类区、混养区和海带区的环境质量处于中等和良之间。
Environment assessment is an important step of evaluating maricultural healthy and sustainability.To monitor the ecological status of Sanggou Bay,macroinvertebrate samples were collected in April and July,2017.Species composition,biomass,density and community structure of macrobenthos were analyzed.The degree of disturbance of large benthic communities and the quality of sedimentary environment were evaluated though AMBI and M-AMBI approaches.Both surveys showed that polychaetes are the dominant species.In total,36 and 32 species were polychaetes found in April and July,accounting for 63.16%and 60.38%of the total,respectively.The results of AMBI and M-AMBI showed that most of the stations in the surveyed sea areas are subject to mild disturbances and several stations are moderately disturbed or undisturbed.The quality of the ecological environment was mostly good.Integrated multi-trophic aquaculture(IMTA)alleviated the pressure of Sanggou Bay coastal ocean ecosystem,and accordingly Sanggou Bay was less affected by human disturbance.The environmental quality of Seagrass area was high and that of bivalves,mixed culture and kelp areas varied between good and moderate.
作者
李文豪
于晓清
蒋增杰
杜美荣
贾彦
何为
高亚平
Li Wenhao;Yu Xiaoqing;Jiang Zengjie;Du Meirong;Jia Yan;He Wei;Gao Yaping(National Demonstration Center for Experimental Fisheries Science Education,College of Fishers and Life Sciences,Shanghai Ocean University,Shanghai 201306,China;Key Laboratory of Sustainable Development of Marine Fisheries of Ministry of Agriculture,Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Qingdao 266071,China;Marine Science Research Institute of Shandong Province,Qingdao 266104,China;Laboratory for Marine Fisheries Science and Food Production Processes,Laoshan Laboratory,Qingdao 266237,China)
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2024年第6期55-67,共13页
Periodical of Ocean University of China
基金
中国水产科学研究院基本科研业务费项目(2020TD50)
国家现代农业产业技术体系项目(CARS-49)资助。
