Effects of fish stocking and fishing pressure on fish community structures in French lakes

Fish stocking and regulation of fishing activities are widely implemented by freshwater fisheries authorities who have to protect aquatic communities. The effects of fish management on fish communities have not received sufficient attention. As a result of two datasets, one from EU Water Framework D...

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Bibliographic Details
Published in:Fisheries management and ecology 2021-08, Vol.28 (4), p.317-327
Main Authors: Daupagne, Léa, Rolan‐Meynard, Marlène, Logez, Maxime, Argillier, Christine
Format: Article
Language:English
Subjects:
Aquatic communities
Catch per unit effort
community structure
Environmental Sciences
Fish
Fish populations
Fish stocking
Fish stocks
Fisheries
Fishing
Fishing effort
fishing intensity
Freshwater
Freshwater fish
Inertia
Inland water environment
Lakes
Polls & surveys
Restocking
size spectrum
standing stocks
Stocking
Surveying
Surveys
Water management
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Summary:Fish stocking and regulation of fishing activities are widely implemented by freshwater fisheries authorities who have to protect aquatic communities. The effects of fish management on fish communities have not received sufficient attention. As a result of two datasets, one from EU Water Framework Directive (WFD) monitoring surveys, and one from a French survey targeting angler's associations, this study investigated the impacts of both fishing intensity and fish stocking on fish communities in French lakes. Both co‐inertia analysis and community size spectra analysis, showed that: (i) stocking does not contribute to the standing stocks for five of the six most stocked fish species in France; and (ii) neither fishing intensity nor fish stocking lead to a change in the proportion of large and small fish. The results support alternative methods being promoted to enhance native fish populations.
ISSN:0969-997X
1365-2400
DOI:10.1111/fme.12476