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Thermal tolerance as a driver of reef fish community structure at the isolated tropical Mid-Atlantic Ridge Islands
Ferrari, D.S.; Nunes, L.T.; Jones, K.L.; Ferreira, C.E.L.; Floeter, S.R. (2024). Thermal tolerance as a driver of reef fish community structure at the isolated tropical Mid-Atlantic Ridge Islands. Mar. Environ. Res. 199: 106611. https://dx.doi.org/10.1016/j.marenvres.2024.106611
In: Marine Environmental Research. Applied Science Publishers: Barking. ISSN 0141-1136; e-ISSN 1879-0291, more
Peer reviewed article  
Available in  Authors 
Keywords
    Endemism
    Fish
    Reefs
    Temperature
    Topographic features > Landforms > Islands > Oceanic islands
    Trophic structure
    Marine/Coastal
Author keywords
    thermal niche breadth
Project Top | Authors 
  • Towards the Sustainable Development of the Atlantic Ocean: Mapping and Assessing the present and future status of Atlantic marine ecosystems under the influence of climate change and exploitation, more
Authors  Top 
  • Ferrari, D.S.
  • Nunes, L.T.
  • Jones, K.L.
  • Ferreira, C.E.L.
  • Floeter, S.R.
Abstract
    Reef fish communities are shaped by historical and ecological factors, including abiotic and biotic mechanisms at different spatial scales, determining species composition, abundance and biomass. The oceanic islands in the Mid-Atlantic Ridge (St. Peter and St. Paul’s Archipelago - SPSPA, Ascension, and St. Helena) , exhibiting differences in community structure along a 14-degree latitudinal and a 10°C thermal gradient. We investigate the influence of sea surface temperature, area, age, isolation and phosphate on reef fish community structures. Reef fish trophic structure varies significantly across the islands, with planktivores and herbivore-detritivores showing the highest abundances in SPSPA and Ascension, while less abundant in St. Helena, aligning with the thermal gradient. V ariations in reef fish community structures were predominantly influenced by thermal regimes, corroborating the expansion of species' thermal niche breadth at higher latitudes and lower temperatures. This study highlights that in addition to biogeographic factors, temperature is pivotal on shaping oceanic island reef fish community structure.
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