By Bui The Anh, 7/02/2010 | .mp3, 7.22 MB | 1305 views |
Programme: Expert Workshop on Inland Fisheries Resource Enhancement and Conservation in Asia
Vietnam has a very high biodiversity in aquatic resources with 1,027 freshwater fishes (belonging to 97 families) (Nguyen and Ngo, 2001), 1 438 micro algae, more than 800 invertebrate species. It diversifies with much kind of groups such as freshwater fishes, invertebrates and migratory species. There are some high value freshwater fish species that fetch prices as high as marine fishes such as Hemibagrus species.
In the past, freshwater capture fisheries were important for the economy in many regions and important food source for the Vietnamese people and the soldiers (Dinh, 1995; Bui, 2006). The government (GoV) was the exclusive harvesting sector for all reservoirs (Ngo and Le, 2001). In the 1970s, there were more than 70 fishing cooperatives with annual production of several thousand tonnes. However, this system collapsed due to over-exploitation of resources change in the country’s economic system (Ngo and Le, 2001; Bui, 2006), which caused a reduction in the resource and most cooperatives of fishers changed their operation to other activities at the end (Dinh, 1995).
There are several threats that directly impact the diversity of inland resources and ecosystem such as over-exploitation, development of agricultural areas to industrial zones, pollution, overutilization of the water supply system caused changed in hydrography, construction of new dams/reservoirs, etc. (MARD, 2009).