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Brook Trout in ULTRA HD 4k (Salvelinus fontinalis): Under Water Spawning and Life Cycle

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Rating: 4.0; Vote: 1

was taken in early December at the base of a long white water run. - Once the females have located suitable spawning habitat, she will use her tail fin to excavate a shallow depression called a redd which will serve as a nest for the eggs. - The debris that is turned up is carried downstream by the current. - The female will check the depth and thus suitability of the nest by lowering herself to the river substrate. She tests it by keeping her pelvic, anal, and caudal fins stiff, to see if they touch the bottom. - The more brightly coloured male will closely guard the female and position himself so that he can fertilize the eggs once released. The male makes various advances and passes, nudges, and comes alongside the female so that their bodies touch in order to stimulate her to release her eggs. - When the female is finally ready to deposit her eggs she will drop her anal fin deeply into the depression and then arch her back. Both the male and female will then open their mouths wide and tremble with rapid undulations of their body as the eggs and milt are simultaneously released. - As fertilization occurs externally, more than one male might fertilize the same batch of eggs. - A female may lay between 20 and 5000 eggs depending on her age, overall size, and health. She does not lay her eggs all at once, but instead releases 15 to 60 at a time. - Eggs must be fertilized within the first 3 minutes, but are most successfully fertilized im
Date: 2021-05-17

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Comments and reviews: 3

hunt
Awesome video! This is worthy of a nature of things or national geographic documentary. I love Brook Trouts. Is this your favourite fish to eat too? How long does it take the brookies to reach 5 to 10 inches when they are able to reproduce, and do they all breed around the same time of year in the late fall or early winter? How long do they usually live for, and lastly, do they all go upstream like Salmon to lay their eggs? Thanks for your expert advice fellow Canuck.
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Kate
Hi there! I am producing a video for Colorado Trout Unlimited and we need footage just like this for a section of the video. Could I get your permission to use this clip?
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Cane
You made a really good video. I think I may do some time released video of crawfish growing in my water garden or some web cams of our honey bees.
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