01635nam a2200241Ia 4500 CTU_237587 210402s9999 xx 000 0 und d 590 K45 8620301 Khounsysounthone, Thongdam Biodiversity of zooplankton in the Hau river : Graduate thesis. Major: Aquaculture Thongdam Khounsysounthone ; Nguyen Thi Kim Lien (Supervisor) Can Tho Can Tho University 2020 The objectives of this study were to investigate and assess the water quality parameters and zooplankton composition to serve as database for development of a zooplankton based biomonitoring system for water quality assessment in the Hau River. The study was implemented four times a year (March, June, September and December, 2019) at An Giang (upstream), Can Tho (middle stream) and Soc Trang (downstream). Sampling was conducted at 29 sites (including 14 locations in the main river and 15 sites in its tributaries). The results showed that a total of 167 zooplankton species were recorded. Among them, Rotifera was the most abundant group with 64 species (accounting for 48%), followed by Protozoa with 48 species (29%), Copepoda with 27 species (16%), and other taxa range of 10-18 species (6-11%). Species composition and density of zooplankton in its tributaries were higher than that in the main river. Động vật phù du,Zooplankton Tuyến tvtrong tvtrong,tvtrong Trung tâm Học liệu Trường Đại học Cần Thơ