Scientist holding brown trout Salmo trutta fario as part of fish management programme in la Garonne river St Gaudens France

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Scientist holding brown trout Salmo trutta fario sampled as part of fish management programme in la Garonne river St Gaudiens France The fish are caught using electric probes which temporarily stun the fish allowing scientists to check size and weight

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Size: 5120px × 3413px
Location: St Gaudens France
Photo credit: © Mark Boulton / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: biology, brown, catching, checking, ecology, fario, fishery, france, garonne, gaudens, hands, holding, la, research, river, salmo, sampling, scientist, size, st, stocks, testing, trout, trutta, weight