Potential effects of global warming on northern European freshwater fish and fisheries
Identifieur interne : 001101 ( Main/Exploration ); précédent : 001100; suivant : 001102Potential effects of global warming on northern European freshwater fish and fisheries
Auteurs : H. Lehtonen [Finlande]Source :
- Fisheries Management and Ecology [ 0969-997X ] ; 1996-03.
English descriptors
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Abstract
Abstract Global warming is expected to result in considerable changes in northern European freshwater fish populations, fisheries and aquaculture. Shifts towards cyprinid and percid dominance in fish assemblages are expected, together with a decrease and collapse of salmonid and other coldwater fish populations. Most of the evident changes will occur in shallow lakes, where no thermal stratification occurs. The potential ranges of some fish species will shift northwards but pronounced changes will occur in the relative abundance of individual fish species. Total fish production will increase but because of changed composition of fish communities the commercial and recreational value of catches will decrease. Salmonid aquaculture productivity will increase provided that fish farmers adapt to new circumstances and cold, oxygenated water is available in larger quantities during summer.
Url:
DOI: 10.1111/j.1365-2400.1996.tb00130.x
Affiliations:
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Le document en format XML
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