What evidence exists on the ecological and physical effects of built structures in shallow, tropical coral reefs? A systematic map protocol - Paxton, Avery; Swannack, Tom; Piercy, Candice; Altman, Safra; Poussard, Leanne; Puckett, Brandon; Storlazzi, Curt; Viehman, T. Shay (Environmental Evidence, 2023)