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Michigan Sea Grant

Chinook Hen Fanning Gravel

315 views 1 year ago
This raw underwater video footage was taken in the South Branch of the Black River in Van Buren County, Michigan. The water was cloudy from early October rains and Chinook salmon were preparing to spawn.

The first fish in the video is a male. The female, or hen, seen later in the video is preparing her redd by fanning her tail to clean fine particles of sand and silt from the gravel and cobble where she will deposit and bury her eggs. The flow of the current through the clean gravel will keep her eggs aerated through the winter months.
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This raw underwater video footage was taken in the South Branch of the Black River in Van Buren County, Michigan. The water was cloudy from early October rains and Chinook salmon were preparing to spawn.

The first fish in the video is a male. The female, or hen, seen later in the video is preparing her redd by fanning her tail to clean fine particles of sand and silt from the gravel and cobble where she will deposit and bury her eggs. The flow of the current through the clean gravel will keep her eggs aerated through the winter months. Show less

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