Declining Importance of Herbivores in Structuring a Heavily Impacted Urban Coral Reef near Cartagena Bay, Colombia DOI Creative Commons
Andrew A. Shantz, Tomás López-Londoño, Kelly Gómez-Campo

et al.

Research Square (Research Square), Journal Year: 2022, Volume and Issue: unknown

Published: Feb. 23, 2022

Abstract Coral reefs are beginning to experience conditions unlike any in recent history. Understanding ecosystem function on future will require reassessing ecological processes under novel environmental regimes. For many coastal reefs, severely degraded water quality be a hallmark of these While herbivory has traditionally been considered essential for maintaining coral dominance evidence from urban suggests this pattern may changing. Here, we reexamined the importance shallow, turbid reef exposed extensive development. We found that although herbivore biomass, size-structure, and grazing rates were significantly reduced relative nearby protected reef, cover shallow remained > 45%. In contrast, at site was roughly 50% lower. Differences between sites due greater two groups corals site: depth-generalist Orbicella spp. ( O. faveolate annularis ), weedy species Agaricia Both tolerant low light levels but susceptible bleaching. Our results suggest diminished top-down pressure did not promote algal dominance. Instead, turbidity-induced reductions available drove community structure, leading algae able acclimate low-light. study demonstrates how context can alter critical highlights need reexamine traditional paradigms ecology understand reefs.

Language: Английский

Global seaweed productivity DOI Creative Commons
Albert Pessarrodona, Jorge Assis, Karen Filbee‐Dexter

et al.

Science Advances, Journal Year: 2022, Volume and Issue: 8(37)

Published: Sept. 14, 2022

The magnitude and distribution of net primary production (NPP) in the coastal ocean remains poorly constrained, particularly for shallow marine vegetation. Here, using a compilation situ annual NPP measurements across >400 sites 72 geographic ecoregions, we provide global predictions productivity seaweed habitats, which form largest vegetated biome on planet. We find that is strongly coupled to climatic variables, peaks at temperate latitudes, dominated by forests large brown seaweeds. Seaweed exhibit exceptionally high per-area rates (a average 656 1711 gC m-2 year-1 subtidal intertidal, respectively), being up 10 times higher than phytoplankton polar seas. Our results show strong driver call its integration oceanic carbon cycle, where it has traditionally been overlooked.

Language: Английский

Citations

123
Microplastics in mangroves and coral reef ecosystems: a review DOI Open Access

Juliana John,

A R Nandhini,

Padmanaban Velayudhaperumal Chellam

et al.

Environmental Chemistry Letters, Journal Year: 2021, Volume and Issue: 20(1), P. 397 - 416

Published: Oct. 7, 2021

Language: Английский

Citations

119
The functional roles of surgeonfishes on coral reefs: past, present and future DOI
Sterling B. Tebbett, Alexandre C. Siqueira, David R. Bellwood

et al.

Reviews in Fish Biology and Fisheries, Journal Year: 2022, Volume and Issue: 32(2), P. 387 - 439

Published: Jan. 9, 2022

Language: Английский

Citations

52
A global dataset of seaweed net primary productivity DOI Creative Commons
Albert Pessarrodona, Karen Filbee‐Dexter, Kira A. Krumhansl

et al.

Scientific Data, Journal Year: 2022, Volume and Issue: 9(1)

Published: Aug. 6, 2022

Net primary productivity (NPP) plays a pivotal role in the global carbon balance but estimating NPP of underwater habitats remains challenging task. Seaweeds (marine macroalgae) form largest and most productive vegetated habitat on Earth. Yet, little is known about distribution their at large spatial scales, despite more than 70 years local-scale studies being scattered throughout literature. We present dataset containing records for 246 seaweed taxa 429 individual sites distributed all continents from intertidal to 55 m depth. All are standardized annual aerial production (g C

Language: Английский

Citations

43
Sustained productivity and the persistence of coral reef fisheries DOI
Renato A. Morais, Patrick Smallhorn‐West, Sean R. Connolly

et al.

Nature Sustainability, Journal Year: 2023, Volume and Issue: 6(10), P. 1199 - 1209

Published: June 12, 2023

Language: Английский

Citations

18
Decadal‐scale time series highlight the role of chronic disturbances in driving ecosystem collapse in the Anthropocene DOI
Peter J. Edmunds

Ecology, Journal Year: 2024, Volume and Issue: 105(8)

Published: June 20, 2024

Biome degradation characterizes the Anthropocene Epoch, and modern ecology is deeply involved with describing changes underway. Most research has focused on role of acute disturbances in causing conspicuous ecosystem structure, which leads to an underappreciation chronic effects large through cumulative small perturbations over decades. Coral reefs epitomize this trend, because community structure are profound, yet data quantify these usually insufficient evaluate relative roles different disturbance types. Here, four decades surveys from two coral (9 14 m depth) off St. John, US Virgin Islands, used associations events benthic structure. These profoundly changed 36 years, death altering species assemblages depress abundances ecologically important Orbicella spp. elevating coverage macroalgae crustose coralline algae/turf/bare space (CTB). Linear mixed models revealed prominent variation temperature accounting for corals, macroalgae, CTB, rising associated increases cover deep reef, declines shallow reef. Hurricanes were also Multivariate analyses strong between temperature, but weaker hurricanes, bleaching, diseases. results highlight overwhelming importance chronically increasing Caribbean reefs.

Language: Английский

Citations

8
A functional perspective on the meaning of the term ‘herbivore’: patterns versus processes in coral reef fishes DOI Creative Commons
Sterling B. Tebbett, Scott Bennett, David R. Bellwood

et al.

Coral Reefs, Journal Year: 2023, Volume and Issue: 43(2), P. 219 - 232

Published: April 3, 2023

Abstract Herbivorous fishes are a key functional group in coral reef ecosystems and have been the focus of vast body research. While substantial progress has made research, challenges persist, especially respect to quantifying patterns versus processes. Despite this challenge being recognised over 40 years ago. To help clarify such challenges, work towards solutions, perspective we explore how definition ‘herbivorous fishes’ precludes an easy translation between herbivore abundance process herbivory. Indeed, if herbivorous defined as, fish which diet is predominantly based on plant material , then encompasses diverse suite all remove primary producers varying extents markedly different impacts functioning. Given situation, our approaches directly herbivory reefs progressed. We highlight lessons learnt from macroalgal assays could be applied direct quantification algal turfs epilithic matrix (EAM); community that invariably difficult with quantify. Nevertheless, given reefs, their relative importance dynamics, widespread process-based assessment EAM represents avenue for expanding future Recognising difficulty translating herbivory, enhanced will necessary comprehensively quantify Anthropocene reefs.

Language: Английский

Citations

17
Coral Reef Bleaching under Climate Change: Prediction Modeling and Machine Learning DOI Open Access
Nathaphon Boonnam,

Tanatpong Udomchaipitak,

Supattra Puttinaovarat

et al.

Sustainability, Journal Year: 2022, Volume and Issue: 14(10), P. 6161 - 6161

Published: May 19, 2022

The coral reefs are important ecosystems to protect underwater life and coastal areas. It is also a natural attraction that attracts many tourists eco-tourism under the sea. However, impact of climate change has led reef bleaching elevated mortality rates. Thus, this paper modeled predicted by using machine learning techniques provide data support protection. Supervised was used predict level damage based on previous information, while unsupervised applied model area discovery knowledge relationship among factors. In supervised learning, three widely algorithms were included: Naïve Bayes, vector (SVM), decision tree. accuracy classifying compared between these models. Unsupervised clustering technique group similar characteristics bleaching. Then, correlation conditions examined. We 5-year dataset obtained from Department Marine Coastal Resources, Thailand, during 2013–2018. results showed SVM most effective classification with 88.85% accuracy, followed tree Bayes achieved 80.25% 71.34% respectively. clustered into six groups, we found seawater pH sea surface temperature correlated

Language: Английский

Citations

16
Spatial and temporal variations in coral reef recovery amid recurring bleaching events in Okinawa Island, Japan. DOI
Mariyam Shidha Afzal, Junichiro Ishida, Rickdane Gomez

et al.

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 205, P. 107033 - 107033

Published: Feb. 24, 2025

Language: Английский

Citations

0
A Succession of Microbiome Communities in the Early Establishing Process of an Epilithic Algal Matrix in a Fringing Reef DOI Creative Commons

B.Y. Zhang,

Simin Hu,

Chen Zhang

et al.

Microorganisms, Journal Year: 2025, Volume and Issue: 13(3), P. 672 - 672

Published: March 17, 2025

An epilithic algal matrix (EAM) exhibits rapid expansion, recovery capacity, and high adaptability, leading to widespread distribution in degraded coral reef habitats. However, limited research on the dynamic processes of succession hinders a comprehensive understanding EAM formation. To examine influence environmental factors composition microbial communities, three-factor (time × depth attached substrate type) crossover experiment was conducted Luhuitou Reef Area, Sanya, China. Microbial community compositions were analyzed through 16S rRNA gene amplicon sequencing. The predominantly composed proteobacteria (61.10–92.75%), cyanobacteria (2.47–23.54%), bacteroidetes (0.86–8.49%), firmicutes (0.14–7.76%). Successional found significantly shape EAM-associated communities Area. Proteobacteria played crucial role biofilm formation during this process, while contributed structural complexity microhabitats within EAM. A chaotic aggregation stage approximately one month observed before transitioning into an expansion stage, eventually stabilizing low-diversity community. Although relatively smooth supported biodiversity, microorganisms displayed no preference for three different substrates. While significant differences at small-scale depths, showed positive correlations with light temperature, respectively. exhibited higher shallower regions under increased intensity temperature. Given characteristics continuous monitoring changes structure key taxa (such as cyanobacteria) is recommended.

Language: Английский

Citations

0