Marine turtles on Bioko Island, Equatorial Guinea

  title={Marine turtles on Bioko Island, Equatorial Guinea},
  author={Thomas M Butynski},
  pages={143 - 149}
  • T. Butynski
  • Published 1 April 1996
  • Environmental Science
  • Oryx
Four endangered species of marine turtle nest on the southern beaches of Bioko Island, Equatorial Guinea. The turtles and their eggs are an important traditional source of food for the people of the area and turtle populations have apparently declined considerably, probably because of overexploitation. This paper reviews what is known about Bioko's marine turtles, their nesting seasons, population trends, use by humans, conservation status and recent conservation efforts. Recommendations are… 

Challenges Confronting Sea Turtle Conservation on Bioko Island, Equatorial Guinea

The current status of sea turtle conservation and research on Bioko Island as well as recent economic considerations that affect local turtle Conservation and use are reported on.

Assessment of Important Marine Turtle Nesting Populations on the Southern Coast of Bioko Island, Equatorial Guinea

Long-term data confirm the importance of Bioko Island's nesting beaches for the Southeast Atlantic and fill a critical need for sea turtle conservation in a data-deficient, yet globally significant, area.

Evidence for Counter-Current Movement of Pelagic Loggerhead Turtles in the North Pacific Ocean Based on Real-time Satellite Tracking and Satellite Altimetry

Olive ridley sea turtles, Lepidochelys olivacea, found in the Indian Ocean and its bay islands are highly vulnerable from various threats. At Gahirmatha in Orissa state, India, the olive ridleys have

Biodiversity in the Gulf of Guinea: an overview

  • P. Jones
  • Environmental Science
    Biodiversity & Conservation
  • 2004
Patterns of species-richness and endemism in the Gulf of Guinea reflect the region's biogeographic history and each island, of greatly differing size and degree of isolation, has acquired its unique sub-set of plants and animals separately from the neighbouring mainland, followed by adaptive radiations in situ.

Predicting the impacts of sea level rise in sea turtle nesting habitat on Bioko Island, Equatorial Guinea

This study investigates how nesting habitat will likely be lost and altered with various increases in sea level, using global sea level rise (SLR) predictions from the Intergovernmental Panel on Climate Change to predict the impacts of SLR on sea turtle nesting habitat in Africa.

Changes in Plasma Chemistry and Reproductive Output of Nesting Leatherbacks

Although clutch size did not change, egg mass decreased significantly with increasing number of nesting events, and the observed trends may be due to depletion of energy reserves and other resources during reproduction in a possible fasting state, and to the associated physiological stress.

The future of the biodiversity of the Gran Caldera Scientific Reserve: Translating science into policy to develop an effective management plan

White paper prepared for the Workshop on ‘The future of the biodiversity of the Gran Caldera Scientific Reserve', celebrated in Malabo, Equatorial Guinea, in June 2015

Bioko: critically important nesting habitat for sea turtles of West Africa

We evaluate the conservation status and threats faced by sea turtle nesting populations at Bioko Island, Equatorial Guinea (Central Africa). Beaches were monitored to obtain a detailed sea turtle



Biology and Conservation of Sea Turtles

Still the most comprehensive review of the subject, Biology and the Conservation of Sea Turtles is now updated to reflect significant advances in sea turtle research. A new section summarizes

Escalation of threats to marine turtles

There is disturbing evidence of new and increasingly important threats: increased incidence of disease; oil and organochlorine contamination and marine ‘macro-pollution’.

Surveys of the sea turtles of Angola

The green turtle and hawksbill (Reptilia: Cheloniidae) : world status, exploitation and trade

The report of a project to collect data relating to the world status, exploitation and trade of "Chelonia mydas" and "Eretmochelys imbricata", and to make recommendations relating to their management

The IUCN Amphibia-Reptilia red data book

1996 IUCN Red List of Threatened Animals

The reptiles, amphibians and fishes previously listed have been reassessed using the complete new IUCN red list category system, and future editions will aim to cover all species in these groups.

Historical decline of loggerhead, ridley and leatherback sea turtles

  • Biology and Conservation of Sea Turtles (ed. K. A. Bjorndal), pp. 189-195. Smithsonian Institution Press. Washington, DC.
  • 1981

Sea turtle nesting in Sierra Leone, West Africa

  • Marine Turtle Newsletter, 54,10-12.
  • 1991