This dataset presents data of nitrogen isotopic composition of coral (Porites) skeleton-bound organic matter and oxygen isotopes form coral cores collected on the reef flat and atoll rim of Surprise Island in the D'entrecasteaux Reefs, the IGUANE cruise (2019; doi:10.17600/18000897). The corals on the reef flat grew in proximity to a seabird breading site and are exposed to seabird-derived nutrients. Additionally we provide measurements of coral growth parameters, including linear extension and skeletal density, derived from the same coral cores analyzed for nitrogen and oxygen isotope composition.

Further funding information: SPP2299: Priority Programme SPP 2299: Tropical Climate Variability and Coral Reefs Max Planck Society (MPG) Paul Crutzen post-doctoral fellowship New Caledonia: IGUANE project (funded by the Labex Mer et Corail)* GUANACO project (funded by LEFE and EC2CO)