Mixed effects of elevated pCO2 on fertilisation, larval and juvenile development and adult responses in the mobile subtidal scallop Mimachlamys asperrima (Lamarck, 1819), supplement to: Scanes, Elliot; Parker, Laura M; O'Connor, Wayne A; Ross, Pauline M (2014): Mixed Effects of Elevated pCO2 on Fertilisation, Larval and Juvenile Development and Adult Responses in the Mobile Subtidal Scallop Mimachlamys asperrima (Lamarck, 1819). PLoS ONE, 9(4), e93649

• Main Authors: Scanes, Elliot, Parker, Laura M, O'Connor, Wayne A, Ross, Pauline M
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2014
• Subjects: Acid-base regulation; Animalia; Benthic animals; Benthos; Containers and aquaria 20-1000 L or < 1 m**2; Deep-sea; Development; Growth/Morphology; Laboratory experiment; Mimachlamys asperrima; Mollusca; Reproduction; FOS Medical biotechnology; Respiration; Single species; South Pacific; Temperate; Species; Figure; Treatment; Percentage; Percentage, standard error; Incubation duration; Length; Length, standard error; Respiration rate, oxygen; Respiration rate, oxygen, standard error; Condition index; Condition index, standard error; Haemolymph, pH; Haemolymph, pH, standard error; Individuals; Individuals, standard error; Temperature, water; Temperature, water, standard error; Salinity; Salinity, standard error; pH; pH, standard error; Alkalinity, total; Alkalinity, total, standard error; Carbonate system computation flag; Carbon dioxide; Partial pressure of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Aragonite saturation state; Calcite saturation state; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Elliot; Lamarck; O'Connor; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.834430; https://doi.pangaea.de/10.1594/PANGAEA.834430

Ocean acidification is predicted to have severe consequences for calcifying marine organisms especially molluscs. Recent studies, however, have found that molluscs in marine environments with naturally elevated or fluctuating CO2 or with an active, high metabolic rate lifestyle may have a capacity to acclimate and be resilient to exposures of elevated environmental pCO2. The aim of this study was to determine the effects of near future concentrations of elevated pCO2 on the larval and adult stages of the mobile doughboy scallop, Mimachlamys asperrima from a subtidal and stable physio-chemical environment. It was found that fertilisation and the shell length of early larval stages of M. asperrima decreased as pCO2 increased, however, there were less pronounced effects of elevated pCO2 on the shell length of later larval stages, with high pCO2 enhancing growth in some instances. Byssal attachment and condition index of adult M. asperrima decreased with elevated pCO2, while in contrast there was no effect on standard metabolic rate or pHe. The responses of larval and adult M. asperrima to elevated pCO2 measured in this study were more moderate than responses previously reported for intertidal oysters and mussels. Even this more moderate set of responses are still likely to reduce the abundance of M. asperrima and potentially other scallop species in the world's oceans at predicted future pCO2 levels. : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne et al, 2014) 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 is 2014-07-25.