clarias gariepinus in the laboratory.

abdominal animal asia biology bladder cardiac catfish clarias clariidae closeup cover cut diseases dorsal education esophagus experiment fish fishing food gall gariepinus gill head heads ilium intestine laboratory large liver mandible mandibular morphology mouth musculus opercular organ pancreas papillae phylogenetics physiology pyloric raker rectum respiratory science small stomach structure study surgery system taxonomy teeth testis tongue zoological