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Tracing anthropogenic inputs in stream foods webs with stable carbon and nitrogen isotope systematics along an agricultural gradient

Fig 5

δ¹⁵N of animal tissues plotted against δ¹⁵N of nitrate (a), δ¹⁵N of darters plotted against δ¹⁵N of trout and bass (b), δ¹⁵N of fish tissues plotted against δ¹⁵N of mussles (c), and δ¹³C of darters plotted against δ¹³C of trout and bass (d).

doi: https://doi.org/10.1371/journal.pone.0200312.g005