摘要
本文报道了1985年7月在新疆福海四个湖区的7个断面39个采样点上计采到寡毛类9种,水生昆虫42种,软体动物11种,其它动物7种。在调查湖区中以小海子的种类最多,大海子最少。全湖底栖动物的平均密度为1083个/m^3,生物量为18.544g/m^2。不同湖区中的现存量有一定差别,密度以中海子为最大,生物量则以“七十三公里”湖区为最高。文中扼要分析了环境条件对底栖动物种类组成和数量分布等方面的影响。
A survey of zoobenthos in the Fuhai Lake, Xinjiang was carried out during July, 1985. Sixty-nine zoobenthic species (including 9 aquatic oligochaetes, 42 aquatic insects, 11 molluscs and 7 species of other taxa) were found. Among them, Tubifex tubifex, Limnodrilus helveticus, Procladius choreus, Chironomus salinarius, Tanytarsus, Palpomyia and Caenis were predominant. The average density of zoobenthos in the lake was 1083 ind/m^2 (86% belonging to insects) and the biomass was 18.544 g/m^2 (63% belonging to insects). Standing crops of the zoobenthos were differecnt in the four subregions of the lake. Population densities in the subregions exhibited a gradual decrease in the following order: Zhonghaizi>Qishisan Gongli>Xiaohaizi>ted a gradual decrease in the following order: Zhonghaizi>Qishisan Gongli>Xiaohaizi>Dahaizi. Environomntal characteristics of Fuhai Lake and their influences on the composition and abundance of zoobenthos were also discussed.
出处
《水生生物学报》
CAS
CSCD
北大核心
1991年第4期303-313,共11页
Acta Hydrobiologica Sinica
