Growth and condition of juvenile coho salmon Oncorhynchus kisutch relate positively to species richness of trophically transmitted parasites

The aims of this study were first, to test the hypothesis that metrics of fish growth and condition relate positively to parasite species richness (SR) in a salmonid host; second, to identify whether SR differs as a function of host origin; third, to identify whether acquisition of parasites through...

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Bibliographic Details
Published in:	Journal of fish biology Vol. 85; no. 5; pp. 1665 - 1681
Main Authors:	Losee, J. P., Fisher, J., Teel, D. J., Baldwin, R. E., Marcogliese, D. J., Jacobson, K. C.
Format:	Journal Article
Language:	English
Published:	Oxford, UK Blackwell Publishing Ltd 01-11-2014 Wiley Subscription Services, Inc
Subjects:	Animals Biodiversity Fish fresh water habitat quality Host-Parasite Interactions IGF1 marine Oncorhynchus kisutch - growth & development Oncorhynchus kisutch - parasitology Oregon Parasites Parasites - isolation & purification Salmon species diversity Washington Oregon Washington habitat quality species diversity IGF1 fresh water marine
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Summary:	The aims of this study were first, to test the hypothesis that metrics of fish growth and condition relate positively to parasite species richness (SR) in a salmonid host; second, to identify whether SR differs as a function of host origin; third, to identify whether acquisition of parasites through marine v. freshwater trophic interactions was related to growth and condition of juvenile salmonids. To evaluate these questions, species diversity of trophically transmitted parasites in juvenile coho salmon Oncorhynchus kisutch collected off the coast of the Oregon and Washington states, U.S.A. in June 2002 and 2004 were analysed. Fish infected with three or more parasite species scored highest in metrics of growth and condition. Fish originating from the Columbia River basin had lower SR than those from the Oregon coast, Washington coast and Puget Sound, WA. Parasites obtained through freshwater or marine trophic interactions were equally important in the relationship between SR and ocean growth and condition of juvenile O. kisutch salmon.
Bibliography:	Bonneville Power Administration istex:5177F13525FB500513F452241EAB836006155A67 NOAA Fisheries ark:/67375/WNG-K15RXM9S-9 ArticleID:JFB12525 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0022-1112 1095-8649
DOI:	10.1111/jfb.12525