- Final Rule (as filed)
- Proposed Rule Correction & Comment Period Re-opening (88 FR 46727, 07/20/2023)
- Proposed Rule (88 FR 20829, 04/07/2023)
- 90-day Finding (86 FR 68452, 12/02/2021)
Atlantic Humpback Dolphin
About the Species
The Atlantic humpback dolphin is a coastal species endemic to tropical and subtropical eastern Atlantic nearshore waters of western Africa, ranging from Morocco to Angola. This species occurs exclusively in shallow (<30 m) depths, in warm nearshore waters, and in dynamic habitats strongly influenced by tidal patterns (e.g., sandbanks, deltas, estuaries, and mangrove systems).
Atlantic humpback dolphin populations are small and fragmented, ranging from the tens to low hundreds of individuals. Available information indicates that the species probably includes fewer than 3,000 individuals.
Threats to the Atlantic humpback dolphin include fisheries bycatch and prey depletion, deliberate capture, coastal development, and anthropogenic noise. Bycatch of Atlantic humpback dolphins in artisanal gillnets is considered widespread throughout the species’ range and is the primary threat facing the species.
In the Spotlight
The Atlantic humpback dolphin is listed as endangered under the Endangered Species Act.
In 2021, NOAA Fisheries received a petition to list the Atlantic humpback dolphin as threatened or endangered under the Endangered Species Act. In our 90-day finding, we concluded that the petitioned action may be warranted. After completing a Status Review, we proposed to list the species as endangered and requested comments from the public. In 2024, NOAA Fisheries listed the Atlantic humpback dolphin as endangered under the Endangered Species Act.