LONG TERM EFFECTS OF AGENT ORANGE/ DIOXIN ON AQUATIC INVERTEBRATE FAUNA IN MA DA AREA, DONG NAI PROVINCE,SOUTHERN VIETNAM
Survey results show that in Ma Da (Dong Nai province, southern Vietnam), there are still certain areas with dioxin levels at 6.04-19.1ppt and TEQs value at 35.162ppt. Forty years ago, after the US Army widely sprayed Agent Orange in southern Vietnam, Ma Da forest was destroyed. Water bodies in this area were also strongly affected. Many aquatic invertebrates have vanished from this area. Hitherto, based on our extensive field surveys, only 163 aquatic invertebrate species have been found from this area so far, that is 22 species fewer than in Cat Tien National Park, the area was not affected by Agent Orange (with 185 species). The abundance of each species in Ma Da is also much lower than that in Cat Tien, reflecting in the Shannon – Weiner Index (H) calculated: from Ma Da stream was 0.918 and from Cat Tien stream was 3.408. Therefore, the overall aquatic invertebrate biodiversity of Ma Da is very low and much lower than that of Cat Tien National Park.
Nguyen Xuan Quynh Ngo Xuan Nam Nguyen Quang Huy Nguyen Thai Binh Nguyen Thanh Son Tran Anh Duc
Hanoi University of Science (Vietnam National University)
国际会议
北京
英文
1-4
2009-08-24（万方平台首次上网日期，不代表论文的发表时间）