How many times the fish opens and closes its mouth in a minute?

Asked by  | 6th Jul, 2008, 04:15: PM

Expert Answer:

The duration of one respiratory cycle in fishes can vary both by species and the time of day, generally from 2 seconds to 4 seconds.That implies that fish opens and closes it's mouth ranging from 15 to 30 times per minute.

Answered by  | 7th Jul, 2008, 06:08: AM

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