Credit: JACK PERKS PHOTOGRAPHY/SCIENCE PHOTO LIBRARY

Caption: Male brown trout. Filmed in the River Derwent, Derbyshire, England.

Release details: Model release not required. Property release not required.

Keywords: 20 seconds or greater, animal themes, biological, biology, british, brown trout, day, derbyshire, england, europe, european, fauna, fish, fresh water, freshwater, gb, great britain, lake trout, male, medium shot, nature, nobody, one animal, real time, river, river derwent, rocks, salmo trutta, science, scientific, stones, trout, uk, underwater, united kingdom, wild animal, wildlife, zoological, zoology

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