Adaptation of animals to low oxygen tension
Adaptation of animals to low oxygen tension
- High haemoglobin concentration in blood
- Have myoglobin that store oxygen
- Fish e.g. trout store oxygen in swimming bladder
- Have haemoglobin with high affinity for oxygen e.g. lungworm
- Fish air breath: when oxygen in water is low fishes break the surface and trap air inside the mouth.
- Decreased activities. Animals tend to be sluggish
- Increased ventilation rate i.e. fast and deep breathing to reduce oxygen requirement
- Aquatic surface respiration: fish stay on the surface leave snout at air water surface taking in water richer in oxygen.
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