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Dams, Fish and Fisheries Opportunities, Challenges and Conflict Resolution

By Marmulla, Gerd

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Book Id: WPLBN0000211964
Format Type: PDF eBook
File Size: 1.6 MB
Reproduction Date: Available via World Wide Web.
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Title: Dams, Fish and Fisheries Opportunities, Challenges and Conflict Resolution  
Author: Marmulla, Gerd
Language: English
Subject: United Nations., Food and Agriculture Organization of the United Nations. FAO agriculture series, Agriculture
Collection: United Nations Food and Agriculture Organization Collection
Publication Date:
Publisher: Food and Agriculture Organization of the United Nations; Digitizer: Fao

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Excerpt: The extent to which fisheries can be developed, sustained or protected along riverine ecosystems modified by dams reflects basin topography, geological features, watershed hydrology, and climate, as well as engineering features of the dam itself, and operational programmes for retention and release of water from the reservoir, through the dam and into the tailwaters. Compensation for loss in yield from river fisheries can be difficult to achieve through development of reservoir fisheries. The larger the river, and the more downstream the location of the dam, the less potential there is for a reservoir fishery to compensate in terms of yield for losses sustained by the river fishery. Compensation potentials apparently are higher in shallower reservoirs in tropical regions than they are in deeper reservoirs and in more northern latitudes. Even if compensation is achieved from a fishery perspective, specific needs of fish species not included in the fishery, and/or that may be threatened or endangered, must be considered to avoid negative impacts to these fishes.


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