![]() ![]() ( Ω cf) independent of external variability in Ω sw. This suggests relatively constant, year-round saturation states of aragonite at the site of calcification ![]() Interestingly, seasonal variations in skeletal density show no relationship with temporally low This is due to declining extension rates, which we attribute to lightĭimming caused by high primary production. With regard to sub-annual calcification patterns, our resultsĭemonstrate compromised calcification rates during the upwelling season. Non-upwelling seasons, respectively, and to reconstruct growth temperatures. Skeletal Ba / Ca and Li / Mg proxy data were used to identify skeletal portions that calcified during upwelling and The calcification rate was determined from the product of skeletalĮxtension rate and bulk density. Ω sw and high nutrient concentrations due to seasonal upwelling. ![]() Porites calcification records from the northern Arabian Sea upwelling zone and investigate the coral calcification response to low ( Ω sw), which leads to an increased vulnerability to anthropogenic ocean acidification and eutrophication. Coral calcification is favoured in oligotrophic environments with high seawater saturation states of aragonite Their persistence rests upon adequate calcification rates of the reefīuilding biota, such as reef corals. Tropical shallow-water reefs are the most diverse ecosystems in the ocean.
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