The Long and Winding Road of Coral Reef Recovery in the Anthropocene: A Case Study from Puerto Rico

The persistence and resilience of marginal shallow coral reefs at their limits of environmental tolerance have declined due to chronic environmental degradation and climate change. However, the consequences for the natural recovery ability of reefs of disturbance remain poorly understood. This study...

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Main Authors: Edwin A. Hernández-Delgado, María F. Ortiz-Flores
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Diversity
Subjects:
Online Access:https://www.mdpi.com/1424-2818/14/10/804
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author Edwin A. Hernández-Delgado
María F. Ortiz-Flores
author_facet Edwin A. Hernández-Delgado
María F. Ortiz-Flores
author_sort Edwin A. Hernández-Delgado
collection DOAJ
description The persistence and resilience of marginal shallow coral reefs at their limits of environmental tolerance have declined due to chronic environmental degradation and climate change. However, the consequences for the natural recovery ability of reefs of disturbance remain poorly understood. This study considered the potential for natural recovery through coral recruitment on fringing reefs across different geographic regions under contrasting environmental conditions in Puerto Rico. Reefs in areas with significant water quality degradation and more severe physical impacts of hurricanes were expected to have lower coral recruit density and diversity, and therefore less potential for recovery. Sixteen reefs were assessed across three geographic regions. Degraded reefs sustained a lower percentage of live coral cover and had higher macroalgae and turf algae abundance. Locations affected by high PO<sub>4</sub>, NH<sub>3</sub><sup>+</sup> and optical brightness concentrations, high turbidity, and high sea surface temperature anomalies, chlorophyll-<i>a</i> concentration and light attenuation Kd<sub>490</sub> evidenced significantly lower coral recruit density and diversity. Hurricane-decimated reefs also exhibited impoverished coral recruit assemblages. Low coral recruitment could have important long-term implications under projected climate change and sea level rise, particularly in coastal urban habitats. There is a need to implement effective environmental conservation, ecological restoration and community participation strategies that facilitate enhanced coral recruitment success and assisted recovery processes.
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spelling doaj.art-271339d3493042fa87ad574f7547da572023-11-23T23:47:57ZengMDPI AGDiversity1424-28182022-09-01141080410.3390/d14100804The Long and Winding Road of Coral Reef Recovery in the Anthropocene: A Case Study from Puerto RicoEdwin A. Hernández-Delgado0María F. Ortiz-Flores1Center for Applied Tropical Ecology and Conservation, University of Puerto Rico, San Juan 00925-2537, Puerto RicoDepartment of Environmental Sciences, University of Puerto Rico, San Juan 00925-2537, Puerto RicoThe persistence and resilience of marginal shallow coral reefs at their limits of environmental tolerance have declined due to chronic environmental degradation and climate change. However, the consequences for the natural recovery ability of reefs of disturbance remain poorly understood. This study considered the potential for natural recovery through coral recruitment on fringing reefs across different geographic regions under contrasting environmental conditions in Puerto Rico. Reefs in areas with significant water quality degradation and more severe physical impacts of hurricanes were expected to have lower coral recruit density and diversity, and therefore less potential for recovery. Sixteen reefs were assessed across three geographic regions. Degraded reefs sustained a lower percentage of live coral cover and had higher macroalgae and turf algae abundance. Locations affected by high PO<sub>4</sub>, NH<sub>3</sub><sup>+</sup> and optical brightness concentrations, high turbidity, and high sea surface temperature anomalies, chlorophyll-<i>a</i> concentration and light attenuation Kd<sub>490</sub> evidenced significantly lower coral recruit density and diversity. Hurricane-decimated reefs also exhibited impoverished coral recruit assemblages. Low coral recruitment could have important long-term implications under projected climate change and sea level rise, particularly in coastal urban habitats. There is a need to implement effective environmental conservation, ecological restoration and community participation strategies that facilitate enhanced coral recruitment success and assisted recovery processes.https://www.mdpi.com/1424-2818/14/10/804benthic community trajectorycoral recruitmentcoral reefsdisturbancehurricanesrecovery
spellingShingle Edwin A. Hernández-Delgado
María F. Ortiz-Flores
The Long and Winding Road of Coral Reef Recovery in the Anthropocene: A Case Study from Puerto Rico
Diversity
benthic community trajectory
coral recruitment
coral reefs
disturbance
hurricanes
recovery
title The Long and Winding Road of Coral Reef Recovery in the Anthropocene: A Case Study from Puerto Rico
title_full The Long and Winding Road of Coral Reef Recovery in the Anthropocene: A Case Study from Puerto Rico
title_fullStr The Long and Winding Road of Coral Reef Recovery in the Anthropocene: A Case Study from Puerto Rico
title_full_unstemmed The Long and Winding Road of Coral Reef Recovery in the Anthropocene: A Case Study from Puerto Rico
title_short The Long and Winding Road of Coral Reef Recovery in the Anthropocene: A Case Study from Puerto Rico
title_sort long and winding road of coral reef recovery in the anthropocene a case study from puerto rico
topic benthic community trajectory
coral recruitment
coral reefs
disturbance
hurricanes
recovery
url https://www.mdpi.com/1424-2818/14/10/804
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