The thermoregulatory function of diel vertical migration for a juvenile fish, Cottus extensus

Juvenile sculpin (Cottus extensus) less than 30 mm long exhibit a diel vertical migration in the limnetic zone of Bear Lake (Utah-Idaho). Using mid-water and bottom trawls we found that these fish inhabit the bottom of the lake (5 deg C) during the day but migrate 30-40 m into the water column at ni...

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