Dear all,
I am trying to understand the diet of different fish parasites using stable isotope analysis. I have indications (isospace) that some of them are feeding directly on the fish tissues, but others on other sources (not fish tissues). How do I correct C13 and N15 for fractionation in this case? Are you aware of studies and /or correction factors applied to fish parasites?
Best regards
Alessandro Manfrin
Parasite fractionation values are an interesting area of study. However, they are not well known (to my knowledge) but this paper does look at some cases: Unusual stable isotope fractionation patterns observed for fish host—parasite trophic relationships. If you are trying to correct for fractionation you must rely on published values or controlled laboratory studies.
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