The constituents released from sea lice (Lepeophtheirus salmonis) in the presence of salmonid mucus

The constituents released from sea lice ...

Paper title	The constituents released from sea lice (Lepeophtheirus salmonis) in the presence of salmonid mucus
Paper author(s)	M. Fast, J. Burka, S. Johnson, N. Ross
Proceedings title	Aquaculture Canada 2001: Moving forward through partnerships. Proceedings of the contributed papers of the 18th Annual Meeting of the Aquaculture Association of Canada, Halifax, Nova Scotia, Canada, 6-9 May 2001
Date	2001
Conference	C. I., Hendry, S. E., McGladdery
Abstract	Sea lice (Lepeophtheirus salmonis, Kroyer) are a major pathogen of farmed Atlantic salmon (Salmo salar). To obtain a better understanding of the host-parasite relationship, we compared protease secretions of L. salmonis into mucus collected from susceptible hosts (Atlantic salmon and rainbow trout, Oncorhynchus mykiss), a resistant salmonid (coho salmon, O. kisutch) and a non-salmonid (winter flounder, Pseudopleuronectes americanus). Protease zymography of mucus from these fish following incubation with live lice revealed the presence of L. salmonis-derived low molecular weight proteases more frequently in Atlantic salmon and rainbow trout, compared to coho salmon or flounder (P<0.05). The differences in L. salmonis protease secretion in response to mucus from different host species may partially explain why coho salmon are more resistant to infection..

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