Publications

Goodbody-Gringley et al. 2015


scientific article | PLoS ONE | open access Open access small aa108fa7f478951c693af64a05bc4b46e6711dbb69a20809512a129d4d6b870f

Population Structure of Montastraea cavernosa on Shallow versus Mesophotic Reefs in Bermuda

Goodbody-Gringley G, Marchini C, Chequer AD, Goffredo S

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Abstract

Mesophotic coral reef ecosystems remain largely unexplored with only limited information available on taxonomic composition, abundance and distribution. Yet, mesophotic reefs may serve as potential refugia for shallow-water species and thus understanding biodiversity, ecology and connectivity of deep reef communities is integral for resource management and conservation. The Caribbean coral, Montastraea cavernosa, is considered a depth generalist and is commonly found at mesophotic depths. We surveyed abundance and size-frequency of M. cavernosa populations at six shallow (10m) and six upper mesophotic (45m) sites in Bermuda and found population structure was depth dependent. The mean surface area of colonies at mesophotic sites was significantly smaller than at shallow sites, suggesting that growth rates and maximum colony surface area are limited on mesophotic reefs. Colony density was significantly higher at mesophotic sites, however, resulting in equal contributions to overall percent cover. Size-frequency distributions between shallow and mesophotic sites were also significantly different with populations at mesophotic reefs skewed towards smaller individuals. Overall, the results of this study provide valuable baseline data on population structure, which indicate that the mesophotic reefs of Bermuda support an established population of M. cavernosa.

Research sites

10.1371   journal.pone.0142427
Keywords
Meta-data (pending validation)
Depth range
10- 45 m

Mesophotic “mentions”
119 x (total of 4747 words)

Fields
Community structure

Research focus
Scleractinia (Hard Corals)

Locations
Bermuda

Research platforms
Diving (unspecified)
Author profiles