On behalf of my coauthors, I am pleased to announce the recent publication
of our paper on marine mammals and sea turtles off Angola. The paper is
published as Open Access, so anyone can download the pdf and supplementary
file using this link. https://www.doi.org/10.1017/S0025315422001084

*Citation:* Whitt, A.D., A.M. Warde, L. Blair, K.J.P. Deslarzes, and C.-H.
Chaineau. 2023. Recent occurrence of marine mammals and sea turtles off
Angola and first report of right whales since the whaling era. Journal of
the Marine Biological Association of the United Kingdom 103:e9.

*Abstract:* Marine megafauna occurrence was recorded in the deep-sea region
bordering the abyssal plain ∼400 km north-west of Luanda, Angola. The
survey took place during an Environmental Baseline Study (EBS), prior to
drilling exploration activities, with the goal of characterizing the
habitat and biodiversity of the region. Offshore shipboard surveys were
conducted during September 2018 in water depths ranging from 2350–3850 m.
We recorded daytime sightings of marine mammals and sea turtles and at
night made audio recordings using passive acoustic monitoring (PAM) methods
focused on capturing the sounds of vocalizing marine mammals. A variety of
species were visually detected, including the humpback whale (*Megaptera
novaeangliae*), sperm whale (*Physeter macrocephalus*), common dolphin (
*Delphinus* spp.), striped dolphin (*Stenella coeruleoalba*), Atlantic
spotted dolphin (*S. frontalis*), and olive ridley turtle (*Lepidochelys
olivacea*). Acoustic click bouts similar to those made by several
odontocete species, possibly including beaked whales, were recorded within
the 25–48 kHz range. The humpback whale was the most frequently sighted
species, accounting for 56% of mammal sightings, indicating a potential far
offshore migratory habitat in this region. Most notably, right whales
(probable *Eubalaena australis*) were visually observed. This is the first
confirmed record of right whales in Angolan waters since the early 1900s.
As development expands in this offshore region, these data can usefully
inform future monitoring and mitigation strategies focused on minimizing
impacts to wildlife.

-- 
*Amy D. Whitt, M.E.M.*
CEO, Senior Scientist

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