Step-by-Step: Insights on key marine organisms associated with coral reef benthic cover using Stepwise Multivariate Regression

Coral reef ecosystems are severely threatened by human activities and climate change. However, the complexity of the ecosystem can complicate identification of significant ecological interactions between the organisms and the reef system. Thus, this study used a ten-year citizen science reef monitor...

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Main Authors: Wee Hin Boo, Affendi Yang Amri, Then Amy Yee Hui, Chen Sue Yee, Hyde Julian
Format: Article
Language:English
Published: EDP Sciences 2024-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/129/e3sconf_staclim2024_02005.pdf
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author Wee Hin Boo
Affendi Yang Amri
Then Amy Yee Hui
Chen Sue Yee
Hyde Julian
author_facet Wee Hin Boo
Affendi Yang Amri
Then Amy Yee Hui
Chen Sue Yee
Hyde Julian
author_sort Wee Hin Boo
collection DOAJ
description Coral reef ecosystems are severely threatened by human activities and climate change. However, the complexity of the ecosystem can complicate identification of significant ecological interactions between the organisms and the reef system. Thus, this study used a ten-year citizen science reef monitoring dataset by Reef Check Malaysia to identify key reefassociated organisms (fish and invertebrates) affected by the changes in benthic cover using Stepwise Multivariate Regression. Data collection started in 2013 to 2023, covering 148 sites from 23 islands of East Coast Peninsular Malaysia. The most dominant biotic benthic cover in coral reefs is the Hard Coral (mean 48.7±19.4% median = 49.4%), followed by Rubble (8.28±11.0%,3.75%), and Nutrient Indicator Algae (4.96±9.15%, 1.25%). Stepwise Multivariate Regressions showed that 6 out of 9 keystone fishes and 4 out of 8 keystone invertebrates were significantly correlated with each individual benthic cover. The regression models indicated that Butterflyfish, Grouper, Sweetlips, Snappers, Diadema Urchins are susceptible to the deterioration of coral reefs (reduction of Hard Coral and increase of Rubble and Nutrient Indicating Algae), while Sea Cucumber, Giant Clam and Pencil Urchin may flourish. Henceforth, the shortlisted reef-associated organisms can be an accessible and cost-effective targeted organisms for a quick and simple assessment of coral reef health.
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spelling doaj-art-be00339427bc426c83e1416d33dc72532025-01-16T11:22:27ZengEDP SciencesE3S Web of Conferences2267-12422024-01-015990200510.1051/e3sconf/202459902005e3sconf_staclim2024_02005Step-by-Step: Insights on key marine organisms associated with coral reef benthic cover using Stepwise Multivariate RegressionWee Hin Boo0Affendi Yang Amri1Then Amy Yee Hui2Chen Sue Yee3Hyde Julian4Centre of Tropical Climate Change System, Institute of Climate Change, Universiti Kebangsaan MalaysiaInstitute of Ocean and Earth Sciences (IOES), Universiti MalayaInstitute of Biological Sciences, Faculty of Science, Universiti MalayaReef Check MalaysiaReef Check MalaysiaCoral reef ecosystems are severely threatened by human activities and climate change. However, the complexity of the ecosystem can complicate identification of significant ecological interactions between the organisms and the reef system. Thus, this study used a ten-year citizen science reef monitoring dataset by Reef Check Malaysia to identify key reefassociated organisms (fish and invertebrates) affected by the changes in benthic cover using Stepwise Multivariate Regression. Data collection started in 2013 to 2023, covering 148 sites from 23 islands of East Coast Peninsular Malaysia. The most dominant biotic benthic cover in coral reefs is the Hard Coral (mean 48.7±19.4% median = 49.4%), followed by Rubble (8.28±11.0%,3.75%), and Nutrient Indicator Algae (4.96±9.15%, 1.25%). Stepwise Multivariate Regressions showed that 6 out of 9 keystone fishes and 4 out of 8 keystone invertebrates were significantly correlated with each individual benthic cover. The regression models indicated that Butterflyfish, Grouper, Sweetlips, Snappers, Diadema Urchins are susceptible to the deterioration of coral reefs (reduction of Hard Coral and increase of Rubble and Nutrient Indicating Algae), while Sea Cucumber, Giant Clam and Pencil Urchin may flourish. Henceforth, the shortlisted reef-associated organisms can be an accessible and cost-effective targeted organisms for a quick and simple assessment of coral reef health.https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/129/e3sconf_staclim2024_02005.pdf
spellingShingle Wee Hin Boo
Affendi Yang Amri
Then Amy Yee Hui
Chen Sue Yee
Hyde Julian
Step-by-Step: Insights on key marine organisms associated with coral reef benthic cover using Stepwise Multivariate Regression
E3S Web of Conferences
title Step-by-Step: Insights on key marine organisms associated with coral reef benthic cover using Stepwise Multivariate Regression
title_full Step-by-Step: Insights on key marine organisms associated with coral reef benthic cover using Stepwise Multivariate Regression
title_fullStr Step-by-Step: Insights on key marine organisms associated with coral reef benthic cover using Stepwise Multivariate Regression
title_full_unstemmed Step-by-Step: Insights on key marine organisms associated with coral reef benthic cover using Stepwise Multivariate Regression
title_short Step-by-Step: Insights on key marine organisms associated with coral reef benthic cover using Stepwise Multivariate Regression
title_sort step by step insights on key marine organisms associated with coral reef benthic cover using stepwise multivariate regression
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2024/129/e3sconf_staclim2024_02005.pdf
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