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The diet of Japanese eels, Anguilla japonica, was investigated using stomach content and stable isotope analyses. Stable isotope enrichment of carbon and nitrogen (Δδ13C and Δδ15N) was first estimated for A. japonica by comparing the isotopic signatures (δ13C and δ15N) of reared eels to that of their food. The estimated isotope enrichment was then applied to the diet estimation of A. japonica in the...
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