Seawater carbonate chemistry and larvae survival percentage, abdominal contraction, heart beat of planktonic larvae of fiddler crab Leptuca thayeri

• Main Authors: Marochi, Murilo Zanetti, De Grande, Fernando Rafael, Pardo, J C F, Montenegro, Alvaro, Costa, Tânia Marcia
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Alkalinity; total; standard deviation; Animalia; Aragonite saturation state; Arthropoda; Behaviour; Bicarbonate ion; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon; inorganic; dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Heart beat; standard error; Laboratory experiment; Leptuca thayeri; Mortality/Survival; Number; OA-ICC; Ocean Acidification International Coordination Centre; Other studied parameter or process; Parque_Municipal_Piacabucu; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Potentiometric; Potentiometric titration; Salinity; Single species; South Atlantic; Ocean acidification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.955482; https://doi.org/10.1594/PANGAEA.955482

Climate change is imposing constant and more severe environmental challenges to coastal and marine species. Regional climate and species acclimation capacity determine the communities' ecological response to stressors. Marine heatwave events are of serious threat to species fitness and survivorship, even more to the sensitive early-history stages of ectotherms. By combining modeled regional historical data and climate change predictions with manipulative experiments, we evaluated the potential impact of marine heatwaves in a widespread and abundant planktonic larvae of the fiddler crab Leptuca thayeri. Larvae survival was affected by temperature increase with lowest survival probability under higher temperature treatments regardless of pH conditions. Larval physiology was affected by both temperature increase and pH conditions. With heatwaves becoming more frequent, hotter, and lasting longer in the region, we could expect potential reductions in the larval recruitment and stocks with cascade ecological negative effects on estuarine habitats.