catching green turtles

Annette and a net - catching green turtles in the Turks and Caicos Islands

Professor Annette Broderick
Professor of Marine Conservation


Research projects

Staff and students of the Marine Turtle Research Group are currently working in Ascension Island, Brazil, Cayman Islands, Congo, Gabon, Greece, Guinea Bissau, Madagascar, Northern Cyprus, Peru, Sao Tome and Principe, Turks and Caicos Islands and the USA. The Marine Turtle Conservation Project in Cyprus has been running since 1992 and each year 20-30 volunteers participate. If you are interested in applying please visit the project website

Temperature, Sex Ratios, and Phenotypic Development

The effect of climate change on species whose sex is determined by temperature during embryonic development (Temperature-dependent Sex Determination (TSD), such as marine turtles, is likely to be considerable, making them important indicator species. Whilst the effect of temperature on sex ratio of marine turtle hatchlings has been well studied under laboratory conditions, there have been few field studies that have monitored the incubation environment of in situ clutches. To address these issues we have been studying the relationship between temperature, sex, embryo mortality and hatchling phenotype of marine turtle hatchlings at several field sites around the world.

Exploitation, Fluctuations and Recovery of Marine Turtle Populations

Many marine turtle populations are in decline or only recently recovering from past exploitation. Understanding the processes driving recovery and fluctuation of marine turtle populations are fundamental if we are to assess the current status of populations and direct conservation programmes.

Migration of Marine Turtles

In the last few years we have been making extensive use of satellite tracking to understand the movements of marine turtles. This not only enables us to plot their migration routes and identify their foraging and over wintering sites it also allows us to assess their fidelity to a nesting beach and gain a more accurate estimate of nesting frequency within a season. It also allows us to achieve a better understanding of the navigational abilities of marine turtles.

Data collected is of immense popular interest. Through our partnership with the USA-based NGO SEATURTLE.ORG we have helped develop an online site where the public can track marine vertebrates in near real time. Visit the tracking site

Research networks


Joanna Alfaro-Shigueto and Jeff Mangel, Pro-Delphinus, Peru

Lisa Campbell, Duke University, USA

Conservation Team, Ascension Island Government Conservation

Michael Coyne,

Wayne Fuller, Near East University, Cyprus

Fran Humber, Blue Ventures

Ozge Ozden Fuller, Near East University, Cyprus

Peter Richardson and Sue Ranger, Marine Conservation Society, UK

Society for the Protection of Turtles, North Cyprus


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