How important is the presence of air bladder in Pisces?
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gas bladder or air bladder is a gas filled sac present in fishes. It helps in maintaining buoyancy. Thus, it helps fishes to ascend or descend and stay in the water current.
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A gas filled swim bladder or air sac/bladder is always present above the alimentary canal which acts as buoyancy regulator. It enables the fish to stay at a particular depth without expending energy in swimming.
In some bony fishes, the swim bladder is used as lung for breathing air.
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In some bony fishes, the swim bladder is used as lung for breathing air.
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adityakjha24:
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