Abrolhos Pinnacles is an important reproductive area for one shark species.

In April 2015, 60 Baited Remote Underwater Video Station (BRUVS) surveys were deployed within the broader Abrolhos Bank region and Caribbean Reef Sharks were recorded only within this area (Schmid et al. 2022). Between January–February 2017, 90 BRUVS surveys were deployed in the broader Abrolhos area, including 54 within this area. Caribbean Reef Sharks were only recorded within this area, in 26% of deployments, with the maximum number of individuals in a video frame (MaxN) ranging from one to three (Rolim et al. 2022). The total length (TL) of the Caribbean Reef Sharks observed was estimated between 69–203 cm TL (mean = 90.8 cm TL). Of the 15 Caribbean Reef Sharks measured in the BRUVS, 14 animals were considered to be neonate/young-of-the-year with estimated sizes between 69–97 cm TL. The size-at-birth of Caribbean Reef Sharks is 70 cm TL (Ebert et al. 2021). Additionally, during the FinPrint project undertaken in 2018, 90 BRUVS were deployed in the area and broader region (Simpfendorfer et al. 2023). Of these, 25 were within this area. Caribbean Reef Sharks were recorded in four deployments, all within this area (MaxN = 12 at 17.3 m depth) (Simpfendorfer et al. 2023). These animals measured an estimated 90–110 cm TL. Finally, five YOY Caribbean Reef Sharks measuring <100 cm TL and captured within this area between 1997–1999 are in ichthyology collections supporting the historic use of this area in the early life stages of this species (Garla et al. 2006). This is the only known area in the Brazilian Shelf where the early stages of the Caribbean Reef Shark are regularly recorded. Other areas are the oceanic islands Trindade, Fernando de Noronha, and Rocas Atoll (Garla et al. 2006).