Seawater carbonate chemistry and cellular and molecular changes in hemolymph and extrapallial fluid in Mercenaria mercenaria ...
Seawater pH and carbonate saturation are predicted to decrease dramatically by the end of the century. This process, designated ocean acidification (OA), threatens economically and ecologically important marine calcifiers, including the northern quahog (Mercenaria mercenaria). While many studies hav...
Main Authors: | , , , , |
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Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2023
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Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.957785 https://doi.pangaea.de/10.1594/PANGAEA.957785 |
Summary: | Seawater pH and carbonate saturation are predicted to decrease dramatically by the end of the century. This process, designated ocean acidification (OA), threatens economically and ecologically important marine calcifiers, including the northern quahog (Mercenaria mercenaria). While many studies have demonstrated the adverse impacts of OA on bivalves, much less is known about mechanisms of resilience and adaptive strategies. Here, we examined clam responses to OA by evaluating cellular (hemocyte activities) and molecular (high-throughput proteomics, RNASeq) changes in hemolymph and extrapallial fluid (EPF—the site of biomineralization located between the mantle and the shell) in M. mercenaria continuously exposed to acidified (pH 7.3; pCO2 2700 ppm) and normal conditions (pH 8.1; pCO2 600 ppm) for one year. The extracellular pH of EPF and hemolymph (7.5) was significantly higher than that of the external acidified seawater (7.3). Under OA conditions, granulocytes (a sub-population of hemocytes important for ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2023-04-20. ... |
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