Air-breathing Behaviour in Heterotis niloticus Fingerlings: Response to Changes in Oxygen, Temperature and Exercise Regimes

Air-breathing in fish is believed to have arisen as an adaptation to aquatic hypoxia. Although air-breathing has been widely studied in numerous fish species, little is known about the obligate air-breathing African bonytongue, Heterotis niloticus. In this way, we evaluated if abiotic factors and ph...

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