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Book (series)Consequences of biomanipulation for fish and fisheries 2001
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No results found.The main goal of biomanipulation by fish reduction is not a change in the fish community but a change in the aquatic ecosystem. Fish reduction is a method to push the system in another state, usually a shift from algae domination to macrophyte domination. Intensive fish removal is done by one of the following methods: seining (the Netherlands, Germany, UK), trawling (Sweden, Finland), use of rotenone (Norway, USA, Poland) and stocking of piscivorous fish (USA, Germany). If circumstances allow it (reservoir, ponds) draining is combined with seining (the Netherlands, UK, Poland). The intensity and duration of fishing differs per case, but is quite important for the way the system changes. Fishing may be combined with stocking of predatory fish, mainly pike and pikeperch (or walleye)...... -
No Thumbnail AvailableBook (series)Management of Asian reservoir fisheries. 1980
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No results found.An increasing number of impoundments in Southeast Asian countries is now becoming available for fishery management purposes. This report is an overview of reservoir fisheries experience, based both on temperate and tropical countries. It provides a synthesis of information of fish population studies, including predictions of fish potential yield, alternatives for management of fish populations and for management of the habitat. It should assist in planning fishery management strategies for new r eservoirs, and improve the management of existing reservoir fisheries in Southeast Asia. -
No Thumbnail AvailableBook (series)Role of fishery technology in management and development of freshwater fisheries in Africa 1979
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