Publication Date:
2024-03-15
Description:
Ocean warming and acidification are predicted to impact the physiology of marine organisms, especially marine calcifiers that must deposit calcium carbonate and resist dissolution. Of particular concern are articulated coralline algae, which must maintain both calcified segments (intergenicula) and uncalcified joints (genicula) in order to thrive along wave-swept rocky coastlines. We examined the effect of pH and temperature, both individually and in combination, on the growth, calcification, and biomechanical properties of 2 species of articulated coralline algae, Corallina vancouveriensis and Calliarthron tuberculosum, common on wave-exposed shores in the NE Pacific. Increased temperature and reduced pH were found to reduce growth rates in both species (30-89% lower) but had little influence on the amount of intergenicular calcium carbonate or on the genicular biomechanical properties of these species. Results suggest that although growth rates may decline, these 2 coralline species will maintain the integrity of their tissues and continue to persist under future climate stress.
Keywords:
Alkalinity, total; Alkalinity, total, standard error; Animalia; Aragonite saturation state; Aragonite saturation state, standard error; Arsenic; Barium; Barium/Calcium ratio; Benthic animals; Benthos; Bicarbonate ion; Biomass/Abundance/Elemental composition; Calcite saturation state; Calcite saturation state, standard error; Calcium; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon; Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Change; Date; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Hydrogen; Identification; Laboratory experiment; Laboratory strains; Magnesium; Magnesium/Calcium ratio; Manganese; Mass change; Mesocosm or benthocosm; Mollusca; Nitrogen; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; pH; pH, standard error; Phosphorus; Potassium; Potentiometric; Potentiometric titration; Prorocentrum cordatum; Salinity; Salinity, standard error; Shell height; Shell length; Shell width; Silicon; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Strontium; Strontium/Calcium ratio; Temperature; Temperature, water; Temperature, water, standard error; Treatment; Tridacna squamosa; Type; Wet mass; Width, maximum
Type:
Dataset
Format:
text/tab-separated-values, 7527 data points
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