X-cell gill disease obliterates the lamellar blood supply in the Antarctic teleost, Pagothenia borchgreviniki (Boulenger 1902) |
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| Authors: | C E FRANKLIN J C McKENZIE W DAVISON P W CAREY |
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| Institution: | Department of Zoology, University of Queensland, Brisbane, Australia;Department of Zoology, University of Canterbury, Christchurch, New Zealand |
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| Abstract: | Abstract Vascular corrosion casting methods were used to elucidate the pathological effects of X-cell disease on the blood supply to the gills of the Antarctic teleost, Pagothenia borchgrevinki (Boulenger, 1902). Afferent and efferent branchial arteries were patent in X-cell diseased fish; however, the blood supply to the lamellae was markedly reduced or obliterated in areas in which there was a predominance of X-cells. The present authors believe that the tissue hyperplasia associated with X-cell disease results in the compression of the lamellar vascular bed which leads eventually to the occlusion of vessels. |
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