Functional morphology of the respiratory organs of the air-breathing fish with particular emphasis on the African catfishes, Clarias mossambicus and C. gariepinus
Keywords: ABO; air breathing organ; BGB; blood-gas barrier; DO2; total morphometric diffusing capacity for oxygen; LOs; labyrinthine organs; SBCMs; suprabranchial chamber (epibranchial) membranes; WBB; water-blood barrier; Ïht; harmonic mean thickness of the tissu