Respiration; buccal and opercular pumps
Respiration; buccal and opercular pumps
Respiration; buccal and opercular pumps
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In many bottom-living fishes, there is a tendency to increase the duration<br />
of the inspiratory phase, that is, the <strong>opercular</strong> pump phase. Thus phase<br />
1 is of long duration, while phase 3 is relatively short: