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The pathology of Chilodonella hexasticha (Kiernik). Infections in cichlid fishes
Author(s) -
Paperna I.,
As J. G.
Publication year - 1983
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1983.tb02924.x
Subject(s) - biology , emaciation , hyperplasia , epithelium , gill , necrosis , mucus , cichlid , pathology , mesenchyme , anatomy , fish <actinopterygii> , fishery , endocrinology , ecology , medicine , genetics
Pathological and histopathological changes induced by infection of Chilodonella hexasticha (Kiernik) in wild and cultured cichlid fishes from Israel and South Africa are described. Heavy infection resulted in emaciation and mass mortalities. Infection in the gills caused severe degeneration, necrosis and consequent degradation of the branchial epithelium and occlusion of the capillaries. Infection also induced massive proliferation of chloride and mucus cells and also caused hyperplasia of the lining filamental epithelium. However, epithelial hyperplasia was counteracted by the extreme process of degradation of the epithelial layer and as a result was either limited in extent or occurred in an uneven pattern.