High congruence of isotope sewage signals in multiple marine taxa.

Highlights: [•] Sewage inputs are routinely mapped with stable isotopes (¹⁵N) in organisms. [•] We tested whether choice of species influences spatial ¹⁵N distributions. [•] Spatial gradients were consistent between algae, seagrasses, crabs, and fish. [•] A match of sewage-N signals in multiple marine taxa has not been reported before. [•] Spatially-coupled transfers in the food web produce the congruence of N imprints. [Copyright &y& Elsevier]