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Journal of Parasitology Research
Volume 2012 (2012), Article ID 237280, 7 pages
Review Article

Host-Parasite Interactions in Some Fish Species

Department of Biology, Memorial University of Newfoundland, St. John's, NL, Canada A1B 3X9

Received 2 April 2012; Accepted 20 June 2012

Academic Editor: Renato A. Mortara

Copyright © 2012 R. A. Khan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Host-parasite interactions are complex, compounded by factors that are capable of shifting the balance in either direction. The host's age, behaviour, immunological status, and environmental change can affect the association that is beneficial to the host whereas evasion of the host’s immune response favours the parasite. In fish, some infections that induce mortality are age and temperature dependent. Environmental change, especially habitat degradation by anthropogenic pollutants and oceanographic alterations induced by climatic, can influence parasitic-host interaction. The outcome of these associations will hinge on susceptibility and resistance.