Long-term evolution of the structure of the St. Lawrence (Canada) marine ecosystem in the context of climate change and anthropogenic activities: An isotopic perceptive.

Generalized linear models examining variation in δ 13 C and δ 15 N values were highly significant (both p < .001), and the total variance explained by fixed effects (i.e., species, region, and period) was relatively high for δ 13 C ( R 2 = .57) and for δ 15 N ( R 2 = .80).

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