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Constituents of talisia nervosa with potential utility against metabolic syndrome
Authors
Mahabir P. Gupta
Ikhlas A. Khana
+3 more
Shabana I. Khana
Yelkaira Vásquez
Jianping Zhao
Publication date
1 January 2019
Publisher
eGrove
Abstract
© 2019, The Author(s). As coral cover has declined on Caribbean reefs, space has become occupied by other benthic taxa, including sponges, which may affect the recruitment of new corals, thereby affecting the ability of reefs to recover to coral-dominated states. Sponges may inhibit coral recruitment by pre-empting potential recruitment space, overgrowing recruits, or through allelopathy. This study examined coral recruitment across six coral reef sites surrounding St. Thomas, US Virgin Islands, and the impact of one species of sponge and the sponge community as a whole on coral recruitment. To test the effect of a single species of sponge on coral recruitment, fragments of living or non-living Aplysina cauliformis were attached to terracotta recruitment tiles and deployed at all six sites, along with unoccupied tiles as controls. At two of the sites, a community-level experiment consisted of deploying recruitment tiles in 1 m2 plots that were either cleared of the entire sponge community or control plots where no sponges were removed. Recruitment rates showed a consistent difference among sites over multiple years and experiments. Results of the species-specific experiment showed that the proximity of live or dead A. cauliformis did not affect coral recruitment. However, results of the community-level experiment found greater coral recruitment rates in plots cleared of sponges, suggesting that the presence of the sponge community negatively affected coral recruitment. This study is one of the first to experimentally test and find a significant impact of sponges on coral recruitment, and highlights the need for additional research in this area
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eGrove (Univ. of Mississippi)
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oai:egrove.olemiss.edu:pharmac...
Last time updated on 16/04/2021
UP-RID - Repositorio Institucional Digital de la Universidad de Panama
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Last time updated on 19/11/2023