Protect Marine Ecosystems in Mexico

by Global Vision International Charitable Trust
Sep 6, 2013

Increase in coral cover at monitoring site

Dear supporter,

I am excited to share with you some scientific research that has come out of this project. Pedro Paila is a spur and groove reef exhibiting an average depth of 10m located 3.94km north of Pez maya. Volunteers have been conducting surveys for the last eight years, providing information on coral species, diseases, benthic composition, presence of adult fish species and juvenile recruitment at the site. Pedro Paila has proven to be a favorite with many of our volunteers due to the beautiful corals and numerous fish species often seen here. Data collected by volunteers has shown that over the past eight years the percentage cover of hermatypic corals is increasing, with a noted increase present over the past three years 

Whilst instances of dark spot have increased over time, predominately recorded on Siderastrea siderea, a coral that appears to be increasingly susceptible to pathogenic diseases, records of fast spreading diseases such as Black Band, Red Band and white plague have dramatically decreased.

There has also been an increase in the number of Acanthuridae recorded at the site, which includes fish species such as the Blue Tang (the above figure), ocean surgeon fish and Doctor fish, which feed on macro-algae, this helps to increase the percentage cover of coral as the percentage cover of macro algae is reduced, thus reducing competition for space. Nutrients from fish excretion can also facilitate coral growth, which reduces the space for algae colonization, again leading to a shift towards a healthier coral reef 

We are very pleased to see these results and hope that continued research on this reef will lead to further insight into the future health of our reefs. 

Thank you as always for your support for this project

Kind regards

Sophie Birkett



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Organization Information

Global Vision International Charitable Trust

Location: Exeter, Devon - United Kingdom
Website: http:/​/​
Project Leader:
Kate Robey
St Albans, Herts United Kingdom

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