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A positive trajectory for corals at Little Cayman Island
Manfrino, C.; Jacoby, C.A.; Camp, E.; Frazer, T.K. (2013). A positive trajectory for corals at Little Cayman Island. PLoS One 8(10): 9 pp.
In: PLoS One. Public Library of Science: San Francisco. ISSN 1932-6203, more
Peer reviewed article  

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Author keywords
    Coral reefs Bleaching Damage mechanics Cayman Islands Permutation Conservation science Marine fish

Authors  Top 
  • Manfrino, C.
  • Jacoby, C.A.
  • Camp, E.
  • Frazer, T.K.

    Coral reefs are damaged by natural disturbances and local and global anthropogenic stresses. As stresses intensify, so do debates about whether reefs will recover after significant damage. True headway in this debate requires documented temporal trajectories for coral assemblages subjected to various combinations of stresses; therefore, we report relevant changes in coral assemblages at Little Cayman Island. Between 1999 and 2012, spatiotemporal patterns in cover, densities of juveniles and size structure of assemblages were documented inside and outside marine protected areas using transects, quadrats and measurements of maximum diameters. Over five years, bleaching and disease caused live cover to decrease from 26% to 14%, with full recovery seven years later. Juvenile densities varied, reaching a maximum in 2010. Both patterns were consistent within and outside protected areas. In addition, dominant coral species persisted within and outside protected areas although their size frequency distributions varied temporally and spatially. The health of the coral assemblage and the similarity of responses across levels of protection suggested that negligible anthropogenic disturbance at the local scale was a key factor underlying the observed resilience.

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