Ontogenetic diet shift in the euphausiid Euphausia pacifica quantified using stable isotope analysis.

The article focuses on the euphausiid Euphausia pacifica's ontogenetic diet shift in the East Sea (Japan Sea or Sea of Japan). Euphausia pacifica is one of the 4 species found in the region and studies about its morphology seems to be lacking. In the study conducted by the authors, they discovered that lower values of §15N are found in adults compared to values found in juveniles. This discovery reflects that as euphausiid E. pacifica matures, their diet turns detritivorous. According to the authors, the results can be useful in analyzing energy transfer in marine food chains.