Garter Diet Question

[DrKate]

If you have references to those studies, I am interested (particularly as it relates to the mechanism of the deficiency).

If you've got access to Aquatic Sciences & Fisheries Abstracts through your university library, use "thiaminase" and "alewife" as search terms and set the fields to "Anywhere." There are loads of studies, I only read enough of them to convince myself the salmon had thiamine deficiency and were eating the alewives live. If you don't have access to ASFA, PM me and I'll send you a list of the search results. Since the OP asked a very practical question, I don't want to further clog the thread with academic nonsense.