1999/02/01 by Joan A. Kleypas, JOAN A. KLEYPAS, John McManus +3 · 992 citations
Environmental Science · #Biology #Climate change #Coral and Marine Ecosystems Studies #Coral reef #Ecology #Environmental change #Environmental science #Fishery #Geology #Limiting #Marine and fisheries research #Marine animal studies overview #Oceanography #Reef #Resilience of coral reefs #Salinity
paper · pdf · doi:10.1093/icb/39.1.146
published in American Zoologist 39(1), 146-159 (Oxford University Press)
openalex publication_date 1999/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
SYNOPSIS. Understanding how reefs vary over the present ranges of environmental conditions is key to understanding how coral reefs will adapt to a changing environment. Global environmental data of temperature, salinity, light, carbonate saturation state, and nutrients were recently compiled for nearly 1,000 reef locations. These data were statistically analyzed to (1) re-define environmental limits over which reefs exist today, (2) identify “marginal” reefs; i.e., those that exist near or beyond “normal” environmental limits of reef distribution, and (3) broadly classify reefs based on these major environmental variables. Temperature and salinity limits to coral reefs, as determined by this analysis, are very near those determined by previous researchers; but precise nutrient levels that could be considered limiting to coral reefs were not obvious at the scale of this analysis. However, in contrast to many previous studies that invoke low temperature as the reef-limiting factor at higher latitudes, this study indicates that reduced aragonite saturation and light penetration, both of which covary with temperature, may also be limiting. Identification of “marginal” reef environments, and a new classification of reefs based on suites of environmental conditions, provide an improved global perspective toward predicting how reefs will respond to changing environmental conditions.