Scientist checking size and weight of brown trout management programme in la Garonne river St Gaudens France

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Scientist with brown trout Salmo trutta fario checking size and weight as part of brown trout management programme in la Garonne river St Gaudiens France The fish sample is taken using electric probes which temporarily stun the fish

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Size: 3413px × 5120px
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, la, research, river, salmo, sampling, scientists, size, st, stocks, testing, trout, trutta, vertical, weighing, weight