THEMES & METHODS
Fisheries Monitoring & Livelihoods
We conduct fisheries-dependent data collection through market surveys, catch documentation, and socio-economic assessments. We analyse species composition, catch characteristics, and the spatiotemporal dynamics of elasmobranch fisheries, while evaluating the contribution of shark fisheries and trade to household income, food security, and local livelihoods.
Biodiversity & Ecology
We undertake species identification and biodiversity assessments using morphological, molecular, and emerging techniques (e.g. DNA barcoding, eDNA, BRUVS). We investigate population structure, life history traits, and ecological function through morphometrics, reproductive biology, trophic ecology, and habitat use studies to identify critical habitats and better understand species' roles within marine ecosystems.
Participatory Monitoring & Policy
We promote community-based and citizen science monitoring through digital tools and participatory frameworks (e.g. Siren App, Open Data Kit, KoboToolbox). We support evidence-based conservation by evaluating policy, contributing to international frameworks (e.g. CITES, CMS, IUCN), and developing adaptive management approaches that integrate ecological, fisheries, and socio-economic data.
Outputs & Publications
Angola
Fisher perceptions of catch and trade of sharks and rays in Angolan small-scale fisheries (Soares et al., 2024)
Cabo Verde
Baseline assessment of the coastal elasmobranch fauna of Eastern Cabo Verde, West Africa (Seymour et al., 2024)
Sea Turtle, Shark, and Dolphin Bycatch Rates by Artisanal and Semi-Industrial Fishers in Maio Island, Cape Verde (Lopes et al., 2016)
Evidence for the first multi-species shark nursery area in Atlantic Africa (Boa Vista Island, Cabo Verde) (Rosa et al., 2023)
Sharks in Cabo Verde, Canarias, Madeira and Azores islands: species richness, conservation status and anthropogenic pressures (Varela et al., 2025)
Abnormal skin pigmentation in sharks in the Eastern Atlantic: a case study from Maio Island, Cabo Verde (Ratão et al., 2025)
Cameroon
Shining a light on Cameroon’s elasmobranch fisheries: insights from citizen science and market surveys highlight a conservation priority (Labyedh et al., 2025)
Characterisation of Marine Artisanal Fisheries and the Impact of By-Catch on Marine Fauna in Southern Cameroon (West-Africa) (Ayissi et al., 2018)
Côte d'Ivoire
Reproductive biology of the silky shark Carcharhinus falciformis (Müller & Henle, 1839) in waters off Côte d’Ivoire (West Africa) (N’Gouan et al., 2023)
Diet of the Silky Shark Carcharhinus falciformis (Müller & Henle, 1839) in Waters off Côte d’Ivoire (West Africa) (N’Gouan et al., 2021)
Equatorial Guinea
Using Cumulative Impact Mapping to Prioritize Marine Conservation Efforts in Equatorial Guinea (Trew et al., 2019)
Gabon
Status report on the catches of elasmobranchs by small-scale marine fisheries in Mayumba (De Bruyne, 2015)
Length–Weight Relationships of Elasmobranchs Caught by Artisanal Fisheries From Southern Gabon (Minko et al., 2025)
Fulfilling global marine commitments; lessons learned from Gabon (Metcalfe et al., 2022)
Key Biodiversity Areas of Gabon (Texier et al., 2024)
Gambia
Risks to biodiversity and coastal livelihoods from artisanal elasmobranch fisheries in a Least Developed Country: The Gambia (West Africa) (Moore et al., 2019)
Ghana
Local Ecological Knowledge, Catch Characteristics, and Evidence of Elasmobranch Depletions in Western Ghana Artisanal Fisheries (Seidu et al., 2022)
Fishing for survival: Importance of shark fisheries for the livelihoods of coastal communities in Western Ghana (Seidu et al., 2022)
“Every fish in the sea is meat and so are guitarfishes”: Socio-economic drivers of a guitarfish fishery in Ghana (Seidu et al., 2022)
Species composition, seasonality and biological characteristics of Western Ghana’s elasmobranch fishery (Seidu et al., 2022)
Evaluation of the shark fisheries along the Coastline of Ghana, West Africa (Sekey et al., 2022)
Guinea
Guinean landing surveys of Bentfin devil rays add insight into threatened elasmobranch catch (Kashey et al., 2025)
The industrial fishery in Guinea: status and review of available data (Lesnoff et al.)
State of knowledge on sharks and rays fisheries in CSRP’ space: Case of Guinea Conakry (Samba et al.)
Using Cumulative Impact Mapping to Prioritize Marine Conservation Efforts in Equatorial Guinea (Trew et al., 2019)
Guinea Bissau
Elasmobranch capture by commercial small-scale fisheries in the Bijagós Archipelago, Guinea Bissau (Cross, 2015)
Addressing data-deficiency of threatened sharks and rays in a highly dynamic coastal ecosystem using environmental DNA (Leurs et al., 2023)
Where land meets sea: Intertidal areas as key‐habitats for sharks and rays (Leurs et al., 2023)
Growth, maturity, and diet of the pearl whipray (Fontitrygon margaritella) from the Bijagós Archipelago, Guinea-Bissau (Clements et al., 2022)
Reconstructing historical catch trends of threatened sharks and rays based on fisher ecological knowledge (Leurs et al., 2025)
Liberia
A Critical Review of the Liberian Fisheries Sector: A Technical Report (Jueseah, 2021)
Technical Efficiency Analysis of Coastal Small-Scale Fisheries in Liberia (Jueseah et al., 2021)
Fishers’ ecological knowledge of sawfishes in Lake Piso, Liberia (Leeney, 2015)
Liberia to start industrial shrimp fishing, worrying artisanal fishers (Blamo, 2025)
Distant-water fleets, local consequences: lessons from a case study in Liberia (Jueseah et al., 2025)
Mauritania
Overfishing of Threatened Bycatch Species in a Marine Protected Area: The Elasmobranchs of Banc d'Arguin, Mauritania (Lemrabott et al., 2024)
eDNA metabarcoding reveals a rich but threatened and declining elasmobranch community in West Africa’s largest marine protected area, the Banc d’Arguin (de la Hoz Schilling et al., 2024)
DNA barcoding as a tool to explore elasmobranch diversity in environmental DNA off the Banc d’Arguin (Mauritania) (de la Hoz Schilling, 2021)
Evolution of catches and specific composition of elasmobranchs in Mauritanian artisanal, coastal and offshore fisheries (Dia et al., 2023)
Nigeria
Biometrics of the Common Smooth-Hound Shark, Mustelus Mustelus From Landing Sites of Lagos and Ondo Coasts (Nigeria) (Fola-Matthews et al., 2024)
Socio-Ecological Survey of Ray and Skate in the Badagry and Epe Coastal System, Lagos, Nigeria (Oladipo et al., 2025)
DNA barcoding and morphological characterization of marine stingrays (genus Fontitrygon) from the African Gulf of Guinea (Oladipo et al., 2024)
Morphology, DNA Barcoding and Range Extension of a Poorly Known Fr eshw a ter Stingray Fontitryg on garouaensis Stauch & Blanc, 1962 from Nigerian Inland Water (Oladipo et al., 2025)
An updated ichthyofaunal checklist for the Nigerian Lagos Lagoon with notes on nomenclatural changes and the conservation status of species (Oladipo et al., 2025)
Republic of the Congo
First records of Mobula hypostoma (Bancroft, 1831), Atlantic Pygmy Devil Ray, (Myliobatiformes, Mobulidae) and other devil rays in shallow waters of the Republic of the Congo, Gulf of Guinea (West Africa) (de Boer et al., 2024)
Artisanal fisheries catch highlights hotspot for threatened sharks and rays in the Republic of the Congo (Doherty et al., 2023)
5 years of elasmobranch monitoring at the Songolo landing site (Pointe-Noire), Republic of the Congo (Dissondet et al., 2025)
A rapid assessment of the artisanal shark trade in the Republic of the Congo (Mbun, 2020)
Threats of illegal, unregulated, and unreported fishing to biodiversity and food security in the Republic of the Congo (Doherty et al., 2021)
São Tomé & Principe
Monitoring small-scale fisheries through participatory, app-based surveys in the tropical archipelago of São Tomé and Príncipe (Porriños et al., 2025)
Fisher’s perceptions on shark fisheries in Sao Tome Island (Gulf of Guinea, West Africa) (Pissara et al., 2024)
Fish community composition in the tropical archipelago of São Tomé & Principe (Porriños et al., 2024)
Ten new records of marine fishes for São Tomé, West Africa (Vasco-Rodrigues et al., 2016)
Senegal
New data on the reproductive biology of the Atlantic weasel shark, Paragaleus pectoralis (Chondrichthyes: Hemigaleidae) from the coast of Senegal (eastern tropical Atlantic) (Capapé et al., 2005)
The Unseen Crisis of Sharks and Rays in Senegal (Jabado et al., 2026)
A Situational Analysis of Small-Scale Fisheries in Senegal: From Vulnerability to Viability Challenges and Opportunities for Fisheries Governance (Mbaye et al., 2022)
Note on the ecology and biology of species, development of shark fisheries in the SRFC area, and the impacts of finning on these resources (Diop et al., 2016)
New biological observations on the sandbar shark Carcharhinus plumbeus (Chondrichthyes: Carcharhinidae) from the coast of Senegal (Eastern Tropical Atlantic) (Diatta et al., 2008)
National Shark Action Plan: implementation report (Republic of Senegal, Ministry of the Maritime Economy and International Maritime Transport, 2007)
The selachian fauna (sharks and rays) of the phosphate series of Ndendouri-Ouali Diala (Matam, Western Senegal): Dating and paleoenvironmental interests (Sambou et al., 2017)
Sierra Leone
A Comprehensive Overview of the Current Fisheries Status in Sierra Leone (Kargbo et al., 2024)
Togo
Elasmobranchs from the upper Paleocene of Togo (Guinot et al., 2020)
Regional
Thirty years of shark fishing in West Africa (Diop et al., 2011)
Trends in Industrial and Artisanal Catch Per Effort in West African Fisheries (Belhabib et al., 2017)
The distribution and relative abundance of elasmobranch species along North-Western African shelf and slope (from Gibraltar to 16°N) as compared to retrospective data (70s-80s) and environment (Gulyugin et al., 2006)
Fisher migrations: social and economic perspectives on the emerging shark fishery in West Africa (Sall et al., 2021)
The Gulf of Guinea Large Marine Ecosystem (McGlade et al., 2002)
IUCN Global Report on Africa (IUCN, 2024)
Industrial Fishing Near West African Marine Protected Areas and Its Potential Effects on Mobile Marine Predators (Leurs et al., 2021)
Bridging the Gaps that Hinder Shark Conservation (Fordham et al., 2023)
Records of rays of the genus Mobula (Chondrichthyes: Myliobatiformes: Myliobatidae) from the waters between Gabon and Angola (eastern tropical Atlantic) (Weir et al., 2012)
