Baseline BRUV Surveys, Eastern Cabo Verde

We have monitored marine megafauna in Eastern Cabo Verde around the islands of Boavista, Maio and Sal since 2015. Working with traditional fishers and students we use baited remote under video (BRUV) deployed systematically around the islands based on a spokes-on-a-wheel design, that generated a baseline of abundance and distribution of sharks, rays and large […]

Mega-Planktivore Monitoring Boavista, Cabo Verde

We have monitored the seasonal abundance and distribution of whale sharks (Rhincodon typus) and oceanic manta rays (Mobula birostris) around the island of Boavista, Cabo Verde, since 2015. Fisher and boat-based surveys with traditional artisanal fishers have revealed the SW quadrant to be the seasonal focus of mega-planktivores between June and October. Trained in-water observers […]

Tiger Shark Spatial Ecology Northeastern Cabo Verde

We have surveyed large-bodied coastal sharks in northeastern Cabo Verde since 2016, with a focus on the higher trophic predator – the tiger shark (Galeocerdo cuvier). Using standardized scientific fishing techniques we capture, measure, sex, tag and release large animals. We have also deployed 12 fin-mounted SPOT tags to study their spatial ecology. To date […]

Nursery Area Monitoring Boavista, Cabo Verde

In 2015 MarAlliance identified the area known as the Baía de Sal Rei in northwestern Boavista, Cabo Verde as being used as a nursery area for several shark species. In 2016, we began monitoring work with a focus on the endangered scalloped hammerhead shark (Sphyrna lewini). We use standardized scientific fishing techniques that allow us […]

Cabo Verde

The status of sharks and rays in the Eastern Atlantic is poorly known, as is their connectivity with the Western Atlantic. Working with traditional fishers and institutional partners, we are conducting the first fisheries-dependent and independent assessments and long-term monitoring of sharks and rays in Cabo Verde, including critical nursery areas. This work gives us […]