Population size in Atol das Rocas, Brazil was estimated in 368 individuals (SD = 68), with Petersen-Bailey estimator, and 339 individuals (SD = 95) with Jolly-Seber estimator (Castro 2000a, Castro and Rosa 2005). This population is protected in a biological reserve. Other protected populations in Brazil include those of Marine State Park of Parcel Manuel Luiz (Maranhão State), Marine State Park of Risca do Meio (Ceará State), National Marine Park of Fernando de Noronha (Pernambuco State) and National Marine Park of Abrolhos (Bahia State).

Glover?s Atol, Belize: Nurse Sharks are the most common elasmobranch on this offshore atol. They made up 68% of the elasmobranch catch in a fishery independent shark survey conducted in 2000 (Grubbs et al. 2000).

Unknown