Coastal urbanization-related stressors affect fish herbivory in the Spermonde Archipelago, Indonesia

Frontiers in Marine Science, Год журнала: 2025, Номер 12

Опубликована: Март 6, 2025

Coastal urbanization has significantly degraded coral reef habitats worldwide, often driving shifts from to algal dominance. Quantifying fish herbivory, a key ecological process mitigating such transitions, is essential for understanding health, functioning, and resilience. This study examined herbivory rates (bites multiplied by biomass) across five functional groups (detritivores, croppers, browsers, scrapers, excavators) in relation conditions along gradient of urban influence the Spermonde Archipelago, Indonesia. Herbivory generally increased inshore offshore sites, with notable differences among groups. Cropper scraper varied while detritivore excavator were consistent. Browser was only observed at most site, highlighting potential vulnerability browsing function near centers. Environmental factors influenced distinct ways. Detritivore higher on reefs lower rugosity, likely due sediment accumulation flatter substrates. all herbivorous fish, scrapers excavators individually, strongly correlated organic matter content turf algae sediments, underscoring importance food quality shaping dynamics. Experimental manipulation sediments (clearing vs . control) did not affect rates, suggesting that effects are main driver patterns studied sites. Preserving taxonomic diversity critical maintaining resilience amidst increasing local stressors.

Язык: Английский

Estimating coral reef carbonate budgets using Structure-from-Motion photogrammetry

Coral Reefs, Год журнала: 2025, Номер unknown

Опубликована: Апрель 18, 2025

Язык: Английский

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

E3S Web of Conferences, Год журнала: 2024, Номер 599, С. 02005 - 02005

Опубликована: Янв. 1, 2024

Coral reef ecosystems are severely threatened by human activities and climate change. However, the complexity of ecosystem can complicate identification significant ecological interactions between organisms system. Thus, this study used a ten-year citizen science monitoring dataset Reef Check Malaysia to identify key reefassociated (fish invertebrates) affected changes in benthic cover using Stepwise Multivariate Regression. Data collection started 2013 2023, covering 148 sites from 23 islands East Coast Peninsular Malaysia. The most dominant biotic coral reefs is Hard (mean 48.7±19.4% median = 49.4%), followed Rubble (8.28±11.0%,3.75%), Nutrient Indicator Algae (4.96±9.15%, 1.25%). Regressions showed that 6 out 9 keystone fishes 4 8 invertebrates were significantly correlated with each individual cover. regression models indicated Butterflyfish, Grouper, Sweetlips, Snappers, Diadema Urchins susceptible deterioration (reduction increase Indicating Algae), while Sea Cucumber, Giant Clam Pencil Urchin may flourish. Henceforth, shortlisted reef-associated be an accessible cost-effective targeted for quick simple assessment health.

Язык: Английский