Reconstructing the diet, trophic level and migration pattern of mysticete whales based on baleen isotopic composition.

However, all five individuals had higher averages for δ 15 N Gly values in minimum periods ranging from 0.3 to 1.4‰ and the difference for FW2 was nearly statistically significant ( p = 0.06).

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For all individuals, the mean δ 15 N Gly value for the bulk minimum periods was higher than for the bulk maximum, but was only statistically higher for FW3 ( Z 8 = 2, p = 0.04), although FW1 ( Z 8 = 1.9, p = 0.06) was close to being significant at a threshold of α = 0.05 ( figure 4 c ). δ 15 N Asp values were higher for both the humpback and minke than for the fin whales, and for δ 15 N Ser the humpback had higher values than all the other whales (one-way ANOVAs; Asp F 4,55 = 13.5, p < 0.001; Ser F 4,55 = 14.6, p < 0.001; figure 4 a ). δ

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