Pilbara Marine Conservation Partnership (PMCP) surveys of stable isotope ratios and concentrations of important elements in the tissues of primary producers and consumers. The data include: * Stable isotope ratios (d15N and d13C) of muscle tissue of selected species of fishes, of leaves of seagrasses and mangroves, and of thalli of macroalgae * Concentrations of nitrogen and carbon (%N and %C) and C:N ratios for the same samples. These data are an output of the Pilbara Marine Conservation Partnership (PMCP) Coral Reef Health Theme.