摘要
2006年10月4日-10月7日对天津蛏头沽、驴驹河以及高沙岭潮间带进行了大型底栖动物调查。调查结果表明,该区共有5大类底栖动物30种,其中软体动物最多,平均栖息密度为264 ind./m2,平均生物量为114.84 g/m2,蛏头沽潮间带的栖息密度和生物量是三个区域中最低的。北塘河口至蛏头沽潮间带香农-威纳多样性指数平均值为0.28,属于重污染区;临港工业区至独流碱河潮间带香农-威纳多样性指数平均值为1.67,属于中度污染区,并且历史上存在的毛蚶、缢蛏等经济贝类已很少见到。此次调查发现大量泥螺。
A survey of macrobenthos was carried out in the intertidal zone of Chengtougu, Lvjuhe and Gaoshaling, Tianjin, from October 4th to 7th in 2006. There were 30 species belong to 5 groups, and Mollusca were dominant. The average inhabiting density was 264 ind./m^2 and the average biomass was 114.84 g/m^2. The abundance and biomass in Chengtougu was the least of the three areas. The average Shannon-Wiener diversity index from Beitang estuary to Chengtougu in- tertidal zone was 0.28, which showed polluted seriously. The average Shannon - Wiener diversity index from Lingang Industrial Zone to Duliujian River was 1.67, which showed polluted moderately. Arca subcrenata and Sinonovacula constricta, which existed ever before in history, had seldom been seen. A great number of Bullacta exarata was found this time.
出处
《盐业与化工》
CAS
2010年第1期31-35,共5页
Jounral of Salt and Chemical Industry
基金
国家重点基础研究发展计划项目(973:2007CB407306-2)资助
