In this paper, we assess how resettlement and changes in water access have altered livelihoods of local communities upstream of the Theun Hinboun Expansion Project in Lao PDR. Based on household surveys conducted both before and after resettlement, we estimate changes in water use and benefits among households of 4 resettled villages.
The Mekong is an exceptional river in many ways. In terms of fish biodiversity, it is the world’s second richest river after the Amazon (www.fishbase. org). With 6 to 18% of the global freshwater fish catch, it is also home to the largest freshwater fisheries in the world. The productive Mekong fisheries are essential to the food security of the 60 million people of the Lower Mekong Basin. Fish contributes 81% of the population’s protein intake in Cambodia and 48% in Laos. Mekong inland fisheries also provide employment to 1.6 of the 14 million Cambodians.
In this review, the author provides an overview of the small water bodies as an important inland fishery resource and analyses the global trends in their utilization. He also assesses the opportunities for enhancing fish production from these water bodies based on the strengths and weaknesses of the different management options.
We compared the effects of water resource development on migratory fish in two North American rivers using a descriptive approach based on four highlevel indicators: (1) trends in abundance of Pacific salmon, (2) reliance on artificial production to maintain fisheries, (3) proportion of adult salmon that are wild- versus hatchery-origin, and (4) number of salmon populations needing federal protection to avoid extinction.
Twelve hydropower schemes have been proposed for the Lao, Lao-Thai and Cambodian reaches of the Mekong mainstream. Implementation of any or all of the proposed mainstream projects in the Lower Mekong Basin (LMB) could have profound and wide-ranging socio-economic and environmental impacts in all four riparian countries.
Results of a twelve-month assessment of the fisheries and aquaculture potential of small waterbodies (SWBs) in the West Gonja District of Northern Ghana are presented. The primary objectives of the project were to established whether the fisheries within the reservoir basins in the West Gonja and Nanumba Districts (Northern Region) could be enhanced and aquaculture associated with the SWBs could be viable.
As hydropower developments are accelerated, particularly along the the Mekong mainstream, debates are looming over how to address the loss of abundant fisheries that are so important to local livelihoods.The authors discuss what is at stake and what might be lost by considering how fisheries contribute to development that meets the needs of the people of Mekong. They emphasise the importance of food sovereignty as a local issue in the discourse about trade-offs in water decision-making.
The past decade has seen increased international recognition of the importance of the services provided by natural ecosystems. It is unclear however whether such international awareness will lead to improved environmental management in many regions. We explore this issue by examining the specific case of fish migration and dams on the Mekong river. We determine that dams on the Mekong mainstem and major tributaries will have a major impact on the basin’s fisheries and the people who depend upon them for food and income.
This consultation is a contribution to an assessment of the impacts of basin development on fish production in the Lower Mekong Basin (LMB). Fish of different species respond to development activities, in particular hydropower development, in different ways depending upon their migratory behaviour and their ability to adapt to and tolerate new environmental conditions.