Coverage increases of porites astreoides in grenada determined by shifts in size-frequency distribution

Ryan G. Eagleson; John S. Lumsden; Lorenzo Álvarez-Filip; Christophe M. Herbinger; Ryan A. Horricks

doi:10.3390/d13070288

Coverage increases of porites astreoides in grenada determined by shifts in size-frequency distribution

Ryan G. Eagleson, John S. Lumsden, Lorenzo Álvarez-Filip, Christophe M. Herbinger, Ryan A. Horricks

Medicine

Résultat de recherche: Article › examen par les pairs

4 Citations (Scopus)

Résumé

Despite coral community collapse, the mustard hill coral (Porites astreoides) is a species currently experiencing success throughout the Caribbean. The inshore reefs of Grenada were selected to study the influence of benthic factors on the abundance, size, and coverage of P. astreoides colonies. Surveys of reef communities along established 30 m transects were conducted at eight sites in 2014 and 2017 using a 0.5 m² quadrat. Coral Point Count was used to annotate the images, estimating the coverage of scleractinian corals, sponges, algae, and benthic substrates. Coverage, size, and abundance of P. astreoides colonies were quantified using the area measurement tool in ImageJ stan-dardized against the quadrats. There were significant differences in benthic community assemblages between islands, selected sites, and between years. From 2014 to 2017 there was a significant decrease in the mean abundance of P. astreoides colonies and significant increases in mean colony size and coverage. The presence of P. astreoides colonies was significantly correlated with: rubble (−), sand (−); pavement (+); macroalgae (−); coralline algae (+); sponges (varying response); gorgonians (−); massive corals (+); and branching corals (−). P. astreoides follows similar recruitment patterns as other scleractinian corals. Observed changes in P. astreoides populations appear to indicate a recovery event following a disturbance, potentially tropical storm Chantal in 2013.

Langue d'origine	English
Numéro d'article	288
Journal	Diversity
Volume	13
Numéro de publication	7
DOI	https://doi.org/10.3390/d13070288
Statut de publication	Published - juill. 2021

Note bibliographique

Funding Information:
Acknowledgments: We would like to thank EcoDive Grenada and Deefer Diving Carriacou for their assistance with diving logistics in the field. Funding for this research was provided by a NSERC Discovery Grant (Lumsden), the Ontario Veterinary College, University of Guelph, and St. George’s University. Horricks was the recipient of a St. George’s University post-doctoral and an Ontario Veterinary College Scholarship. Eagleson was the recipient of an Ontario Veterinary College Scholarship.

Funding Information:
This research was funded by a NSERC Discovery Grant (Lumsden), the Ontario Veterinary College, University of Guelph, and St. George’s University. We would like to thank EcoDive Grenada and Deefer Diving Carriacou for their assistance with diving logistics in the field. Funding for this research was provided by a NSERC Discovery Grant (Lumsden), the Ontario Veterinary College, University of Guelph, and St. George’s University. Horricks was the recipient of a St. George’s University post-doctoral and an Ontario Veterinary College Scholarship. Eagleson was the recipient of an Ontario Veterinary College Scholarship.

Funding Information:
Funding: This research was funded by a NSERC Discovery Grant (Lumsden), the Ontario Veterinary College, University of Guelph, and St. George’s University.

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

ASJC Scopus Subject Areas

Ecology
Ecological Modelling
Agricultural and Biological Sciences (miscellaneous)
Nature and Landscape Conservation

Accès au document

10.3390/d13070288

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abstract = "Despite coral community collapse, the mustard hill coral (Porites astreoides) is a species currently experiencing success throughout the Caribbean. The inshore reefs of Grenada were selected to study the influence of benthic factors on the abundance, size, and coverage of P. astreoides colonies. Surveys of reef communities along established 30 m transects were conducted at eight sites in 2014 and 2017 using a 0.5 m2 quadrat. Coral Point Count was used to annotate the images, estimating the coverage of scleractinian corals, sponges, algae, and benthic substrates. Coverage, size, and abundance of P. astreoides colonies were quantified using the area measurement tool in ImageJ stan-dardized against the quadrats. There were significant differences in benthic community assemblages between islands, selected sites, and between years. From 2014 to 2017 there was a significant decrease in the mean abundance of P. astreoides colonies and significant increases in mean colony size and coverage. The presence of P. astreoides colonies was significantly correlated with: rubble (−), sand (−); pavement (+); macroalgae (−); coralline algae (+); sponges (varying response); gorgonians (−); massive corals (+); and branching corals (−). P. astreoides follows similar recruitment patterns as other scleractinian corals. Observed changes in P. astreoides populations appear to indicate a recovery event following a disturbance, potentially tropical storm Chantal in 2013.",

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note = "Funding Information: Acknowledgments: We would like to thank EcoDive Grenada and Deefer Diving Carriacou for their assistance with diving logistics in the field. Funding for this research was provided by a NSERC Discovery Grant (Lumsden), the Ontario Veterinary College, University of Guelph, and St. George{\textquoteright}s University. Horricks was the recipient of a St. George{\textquoteright}s University post-doctoral and an Ontario Veterinary College Scholarship. Eagleson was the recipient of an Ontario Veterinary College Scholarship. Funding Information: This research was funded by a NSERC Discovery Grant (Lumsden), the Ontario Veterinary College, University of Guelph, and St. George{\textquoteright}s University. We would like to thank EcoDive Grenada and Deefer Diving Carriacou for their assistance with diving logistics in the field. Funding for this research was provided by a NSERC Discovery Grant (Lumsden), the Ontario Veterinary College, University of Guelph, and St. George{\textquoteright}s University. Horricks was the recipient of a St. George{\textquoteright}s University post-doctoral and an Ontario Veterinary College Scholarship. Eagleson was the recipient of an Ontario Veterinary College Scholarship. Funding Information: Funding: This research was funded by a NSERC Discovery Grant (Lumsden), the Ontario Veterinary College, University of Guelph, and St. George{\textquoteright}s University. Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

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AU - Horricks, Ryan A.

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Coverage increases of porites astreoides in grenada determined by shifts in size-frequency distribution

Résumé

Note bibliographique

ASJC Scopus Subject Areas

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