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Implications of thiamine deficiency in Great Lakes salmonines

January 1, 2005

Our recent experimental work and ecoepizootiological assessments provide mechanistic data supporting a plausible hypothesis for an association between a prey base comprised of a large biomass of nonnative alewives Alosa pseudoharengus and the recruitment difficulties currently experienced by Great Lakes salmonines. We hypothesize that the thiamine deficiency induced by alewives, a species harboring high thiaminase activity, represents an ongoing cause of fry and adult mortality in salmonines. Overall ramifications of the thiamine deficiency on recruitment have not been firmly established but may represent a substantial bottleneck for natural recruitment in feral salmonine populations in the Great Lakes.

Citation Information

Publication Year 2005
Title Implications of thiamine deficiency in Great Lakes salmonines
DOI 10.1577/H04-015.1
Authors Scott B. Brown, John D. Fitzsimons, Dale C. Honeyfield, Donald E. Tillitt
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Aquatic Animal Health
Series Number
Index ID 70029061
Record Source USGS Publications Warehouse
USGS Organization Columbia Environmental Research Center