Macroalgal-Coral Interactions in New Caledonia South West Lagoon: Diversity, Abundance, and Spatial Patterns.

ABSTRACT: Macroalgal-coral interactions (MCI) are an integral yet understudied component of coral reef ecology, particularly in healthy systems where they may represent stable coexistence rather than competition. This study provides the first comprehensive assessment of MCI diversity, abundance, and spatial patterns in the South West Lagoon of New Caledonia (SWLNC). Across 26 coral-dominated habitats, MCI accounted for an average of 16.4% of the benthic cover, with local values reaching 70% in high-interaction areas. A total of 43 unique macroalgal-coral genus pairings were documented, involving 16 macroalgal and 10 coral genera. Lobophora (47%), Halimeda (20%), and Hypnea (9%) were the dominant macroalgae, while Acropora (61%), Montipora (19%), Seriatopora

SUBMITTER: Vieira C 

PROVIDER: S-EPMC12561486 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature