Thân mềm (Mollusca) và giáp xác lớn (Malacostraca) ở một số thủy vực núi đá vôi huyện Hạ Lang, tỉnh Cao Bằng: Đa dạng, phân bố và bảo tồn

Khảo sát tại 13 điểm ở các thủy vực khác nhau tại vùng núi đá vôi của huyện Hạ Lang, tỉnh Cao Bằng vào tháng 5/2019, chúng tôi đã xác định được 13 loài Thân mềm (Mollusca) và Giáp xác lớn (Malacostraca) thuộc 10 họ, 13 giống. Trong đó, có tôm, Caridina sp.; Macrobrachium sp.; cua, Chinapotamon sp. Indochinamon sp., đến thời điểm này mới chỉ tìm thấy ở Hạ Lang và có khả năng đây là những loài mới cho khoa học. | TAP CHI SINH HOC 2019 41 2se1 amp 2se2 131 142 DOI 0866-7160 v41n2se1 amp Mollusca AND Malacostraca IN SOME LIMESTONE WATERBODIES IN HA LANG DISTRICT CAO BANG PROVINCE DIVERSITY DISTRIBUTION AND CONSERVATION Do Van Tu Le Hung Anh Nguyen Tong Cuong Dang Van Dong Phan Van Mach Tran Duc Luong Cao Thi Kim Thu Institute of Ecology and Biological Resources VAST Vietnam Received 8 August 2019 accepted 27 September 2019 ABSTRACT An investigation on molluscs and crustaceans was conducted at 13 sites of different water bodies of the limestone mountains of Ha Lang District Cao Bang Province in May 2019. As a result a total of 13 species of molluscs and crustaceans of the class Malacostraca belonging to 10 families 13 genera were recorded. Two shrimp species Caridina sp. Macrobrachium sp. and two crab species Chinapotamon sp. Indochinamon sp. are considered to be endemic of Vietnam and maybe new species. Especially the genus Chinapotamon was recorded in Vietnam for the first time. Each water body such as puddles streams rivers and cave streams is characterized by different composition of molluscs and crustaceans. Although the average number of species is low 3 species per site the percentage of endemic and endangered species is very high 31 and 39 respectively. Small streams puddles in the forests of Duc Quang and Kim Loan Communes- habitats of those endemic and endangered species are the areas that need to be protected. The ecosystem was impacted in some survey sites with the presence of invasive alien species and disturbance indicators. Our first records on molluscs and crustaceans suggested that Ha Lang is currently one of the hot spots for the biodiversity of Vietnam. Keywords Mollusca Malacostraca conservation diversity distribution Ha Lang. Citation Do Van Tu Le Hung Anh Nguyen Tong Cuong Dang Van Dong Phan Van Mach Tran Duc Luong Cao Thi Kim Thu 2019. Mollusca and Malacostraca in some limestone waterbodies in Ha Lang district Cao Bang Province .