ventral fin

noun

ventral fin

another name for pelvic fin
any unpaired median fin situated on the undersurface of fishes and some other aquatic vertebrates

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First recorded in 1745–55

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Examples have not been reviewed.

From September 10-14, Chinook must have an adipose or left ventral fin clip to be retained.

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Chinook retention on Sundays and Mondays will be limited to hatchery fish with an adipose or left ventral fin clip.

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Chinook retention on Sundays and Mondays will be limited to hatchery fish with an adipose or left ventral fin clip only.

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These steelhead can be identified by having both the adipose and right ventral fin clipped.

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Effective August 30 through September 1, all Chinook must be adipose or left ventral fin clipped to be retained.

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