Nghiên cứu đã đưa ra một số giải pháp nhằm giảm thiểu sự suy giảm nhanh chóng đa dạng sinh học của khu vực bằng các biện pháp cụ thể từ nhiều hướng: quản lý, giáo dục, tuyên truyền, bảo tồn, ngăn chặn những tác nhân nêu trên ảnh hưởng tới chất lượng hệ sinh thái trong khu vực. | VNU Journal of Science Earth and Environmental Sciences Vol. 37 No. 1 2021 16-27 Original Article Biodiversity Assessment of Some Aquatic Communities Indicates the Environmental Quality of the Ecosystemsin Mekong Estuary Nguyen Quoc Huy1 Nguyen Hoang Hanh1 Tran Van Thuy2 Le Ngoc Mai2 Do Quy Manh1 Doan Thi Nhat Minh2 1 Institute of Ecology and Works Protection 267 Chua Boc Dong Da Hanoi Vietnam 2 VNU University of Science 334 Nguyen Trai Hanoi Vietnam Received 01 November 2019 Revised 21 November 2019 Accepted 12 April 2020 Abstract The Mekong River mouths have a significance of biodiversity and biological resources especially for the floating and benthic communities in the ecosystem. The study area belongs to 4 provinces in the lower Mekong River Tien Giang Tra Vinh Ben Tre and Soc Trang. The results of Shannon-Wiener biodiversity value assessment and Berger - Parke index of 3 major aquatic communities in the area including phytoplankton zooplankton and benthic showed that biodiversity was at low levels in terms of species composition as well as biodiversity values. More noteworthy is that the benthic animal communities were at the highest level of risk of loss and biodiversity value loss mainly due to socio-economic activities dam construction activities the industrial and agricultural activities that have made the environment here especially the sediment environment strongly affected. The study has proposed a number of solutions to minimize the rapid decline of biodiversity of the region by specific measures from many directions management education propaganda conservation and prevention of the factors affecting the quality of ecosystem in the region. Keywords Biodiversity aquatic Cuu Long river mouths decline. _ Corresponding author. E-mail address doquymanh@ https 2588-1094 16 . Huy et al. VNU Journal of Science Earth and Environmental Sciences Vol. 37 No. 1 2021 16-27 17 Đánh giá tính đa dạng sinh học một số quần xã .
