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Air‐breathing behaviour of the African anabantoid fish Ctenopoma muriei

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Frequency of aerial respiration in Ctenopoma muriei increased as dissolved oxygen (DO) decreased; breathing behaviour was spatially synchronous, and there was no difference in air‐breathing frequency between populations from a high‐ and low‐DO site. Although C. muriei survived without access to the surface, its loss of buoyancy and equilibrium under these conditions suggested that it is a functionally obligatory air breather.

Keywords: Anabantidae; bimodal breather; synchronous air breathing; tropical freshwater fish

Document Type: Research Article


Publication date: 2005-07-01

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