Biodiversity and Fisheries in the Mekong River Basin
Author | : |
Publisher | : |
Total Pages | : 40 |
Release | : 2003 |
Genre | : Aquaculture |
ISBN | : |
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Author | : |
Publisher | : |
Total Pages | : 40 |
Release | : 2003 |
Genre | : Aquaculture |
ISBN | : |
Author | : Ian Charles Campbell |
Publisher | : Academic Press |
Total Pages | : 647 |
Release | : 2009-11-20 |
Genre | : Science |
ISBN | : 0080920632 |
The Mekong is the most controversial river in Southeast Asia, and increasingly the focus of international attention. It flows through 6 counties, China, Myanmar, Laos, Thailand, Cambodia and Viet Nam. The 4 downstream countries have formed the Mekong River Commission to promote sustainable development of the river and many of their people depend on it for their subsistence ? it has possible the largest freshwater fishery in the world, and the Mekong waters support rice agriculture in the delta in Viet Nam (which produces about 40% of that country's food) as well as in Cambodia, Laos and Thailand. China is now building the first large mainstream dam on the river, and has proposals for several more. These dams are likely to affect the downstream countries. Several of the downstream countries also have plans for large scale hydropower and irrigation development which could also impact the river. This book will provide a solid overview of the biophysical environment of the Mekong together with a discussion of the possible impacts, biophysical, economic and social, of some possible development scenarios. It is intended to provide a technical basis which can inform the growing political and conservation debate about the future of the Mekong River, and those who depend on it. It is aimed at river ecologists, geographers, environmentalists and development specialists both in the basin and (especially) outside for whom access to this material is most difficult. This book will be the first comprehensive treatment of the Mekong system. The first comprehensive overview of all aspects of the Mekong River system Deals with a regionally critical ecosystem and one under threat The Mekong supports the world's largest freshwater fishery and provides water underpinning a major regional rice paddy system Presents the authoritative findings of the Mekong River Commission's research for a wider audience for the first time outside of limited distribution reports
Author | : Eric Baran |
Publisher | : WorldFish |
Total Pages | : 79 |
Release | : |
Genre | : |
ISBN | : |
Author | : |
Publisher | : IUCN |
Total Pages | : 52 |
Release | : 2006 |
Genre | : Biodiversity |
ISBN | : 2831709563 |
Author | : François Molle |
Publisher | : Earthscan |
Total Pages | : 449 |
Release | : 2012 |
Genre | : Business & Economics |
ISBN | : 1849770867 |
The water resources of the Mekong river catchment area, from China, through Thailand, Cambodia and Laos to Vietnam, are increasingly contested. Governments, companies and banks are driving new investment in roads, dams, diversions, irrigation schemes, navigation facilities, power plants and other emblems of conventional "development." Their plans and interventions pose multiple burdens and risks to the livelihoods of millions of people dependent on wetlands, floodplains, fisheries and aquatic resources.
Author | : Hong Quan Nguyen |
Publisher | : Elsevier |
Total Pages | : 674 |
Release | : 2024-04-22 |
Genre | : Science |
ISBN | : 0323914500 |
The Mekong River Basin: Ecohydrological Complexity from Catchment to Coast, Volume Three presents real facts, data and predictions for quantifying human-induced changes throughout the Mekong watershed, including its estuaries and coasts, and proposes solutions to decrease or mitigate the negative effect and enable sustainable development. This is the first work to link socio–ecological interaction study over the whole Mekong River basin through the lens of ecohydrology. Each chapter is written by a leading expert, with coverage on climate change, groundwater, land use, flooding drought, biodiversity and anthropological issues. Human activities are enormous in the whole watershed and are still increasing throughout the catchment, with severe negative impacts on natural resources are emerging. Among these activities, hydropower dams, especially a series of 11 dams in China, are the most critical as they generate massive changes throughout the system, including in the delta and to the livelihoods of millions of people and they threaten sustainability. Presents an extensive collection of eco-hydrological changes in the river basin driven by both nature and anthropological factors Provides state of the art modeling, data analysis methodologies for complex socio-ecological complexity applied in the Mekong river basin Includes specific cases of ecohydrology in the river basin, especially from the Mekong delta
Author | : |
Publisher | : WorldFish |
Total Pages | : 301 |
Release | : 2008 |
Genre | : |
ISBN | : 9832346614 |
Author | : Naven Hon |
Publisher | : Grin Publishing |
Total Pages | : 16 |
Release | : 2017-01-04 |
Genre | : |
ISBN | : 9783668284975 |
Seminar paper from the year 2014 in the subject Biology - Ecology, Victoria University of Wellington (School of Biology), language: English, abstract: The Mekong River is one of the largest rivers and the second richest in biodiversity in the world. Because of the demand in electricity for social economics development, the lower Mekong riparian countries have constructed and proposed more than one hundred dams. This river is currently under threat as the dams will block migratory fish species from spawning to feeding habitats, and disturb non-migratory fish species' habitats. These will lead to a decline in fish recruitment and food security. The dams will also risk the extinction of the critically endangered Irrawaddy dolphin and the Mekong Giant catfish. Moreover, they will seriously affect people's livelihood by destroying agricultural lands and damaging water quality. Consequently, it is important to have an international standard of social and environmental impact assessment before building the dams. Governments should avoid building dams which are located in biodiversity hotspots. Small dam projects should be considered reducing the impact on fish migration by introducing with fishways. Ultimately, the governments should consider the long-term costs and benefits of these development projects on both people and biodiversity.
Author | : Mahfuzuddin Ahmed |
Publisher | : WorldFish |
Total Pages | : 68 |
Release | : 2000 |
Genre | : Economic development |
ISBN | : 971802008X |
Author | : Chouly Ou |
Publisher | : |
Total Pages | : |
Release | : 2014 |
Genre | : |
ISBN | : |
The Mekong River is one of the world's most important rivers in terms of its size, economic importance, cultural significance, productivity, and biodiversity. The Mekong River's fisheries and biodiversity are threatened by major hydropower development and over-exploitation. Knowledge of river food web ecology is essential for management of the impacts created by anthropogenic activities on plant and animal populations and ecosystems. In the present study, I surveyed four tropical rivers in Cambodia within the Mekong River Basin. I examined the basal production sources supporting fish biomass in the four rivers during the dry and wet seasons and explored the relationship between trophic position and body size of fish at various taxonomic levels, among local species assemblages, and across trophic guilds. I used stable isotopes of carbon and nitrogen to estimate fish trophic levels and the principal primary production sources supporting fishes. My study provides evidence that food web dynamics in tropical rivers undergo significant seasonal shifts and emphasizes that river food webs are altered by dams and flow regulation. Seston and benthic algae were the most important production sources supporting fish biomass during the dry season, and riparian macrophytes appeared to be the most important production source supporting fishes during the wet season. In the river with strong flow regulation from an upstream impoundment, seston and benthic algae were even more important production sources supporting fishes during the dry season. My findings challenge the Eltonian theory of size-based trophic structure in food webs and also contradict the broadly accepted prediction of the fishing-down-the-food-web concept. Eltonian and fishing-down-the-food-web concepts propose that trophic level is strongly correlated with body size, but I found no significant correlation between body size and trophic position for fish assemblages. Results suggest that body size distributions are not useful for prediction the trophic structure of communities with diverse detritivores, omnivores and insectivores, but that it is a good predictor of trophic position among piscivorous fishes. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151776