Brook Trout Spawning-underwater footage-spectacular - Wild Visions, Inc.

Professionally filmed in HD. Spectacular. In late Sept, high in the Rockies in Colorado, the Brook Trout will spawn. The female will turn on her side and thrash around, moving sand and gravel to make a bed or 'redd'. The male will defend her and his territory for the right to fertilize her eggs. She, too, will also chase off other suitors. Males at breeding time develop a hooked lower jaw (Kype) and their lower flanks become brilliantly colored with reddish-orange. When the bed is finished and she is ready, she will deposit her eggs in the bed and the male will come over and fertilize those eggs with his sperm. She will then cover it all up with sand and gravel and the surviving eggs will incubate for 2-3 months and hatch later. This process can take all day and they do not spawn at night. They are not abundant in water where temperatures are less than 60-65 degrees F and, in general, will not be found in streams where 68 degrees F are exceeded for an extended amount of time. Temperatures above 77 degrees F are fatal if sustained for an extended period of time. Filmed in the Rockies.

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