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  • 1
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    Seawater carbonate chemistry and scope for growth for juvenile Atlantic sea scallops (Placopecten magellanicus) (2023)
    PANGAEA
    Details
    Publication Date: 2024-03-15
    Description: This study assessed the energy budget for juvenile Atlantic Sea Scallop, Placopecten magellanicus, during a natural drop in temperature (15.6°C to 5.8°C) over an 8-week time period during the fall at three different enrichment levels of carbon dioxide (CO2). Every 2 weeks, individuals were sampled for ecophysiological measurements of feeding activity, respiration rate (RR) and excretion rate (ER) to enable the calculation of scope for growth (SFG) and atomic oxygen:nitrogen ratios (O:N). In addition, 36 individuals per treatment were removed for shell height, dry tissue weight (DTW) and dry shell weight (DSW). We found a significant decrease in feeding rates as CO2 increased. Those rates also were significantly affected by temperature, with highest feeding at 9.4°C. No significant CO2 effect was observed for catabolic energy processes (RR and ER); however, these rates did increase significantly with temperature. The O:N ratio was not significantly affected by CO2, but was significantly affected by temperature. There was a significant interaction between CO2 and temperature for ER and the O:N ratio, with low CO2 levels resulting in a U-shaped response that was not sustained as CO2 levels increased. This suggests that the independent effects of CO2 and temperature observed at low levels are different once a CO2 threshold is reached. Additionally, there were significant differences in growth estimators (shell height and DSW), with the best growth occurring at the lowest CO2 level. In contrast to temperature variations that induced a trade-off response in energy acquisition and expenditure, results from this research support the hypothesis that sea scallops have a limited ability to alter physiological processes to compensate for increasing CO2.
    Keywords: Alkalinity, total; Ammonia excretion; Animalia; Aragonite saturation state; Assimilated energy; Assimilation efficiency; Assimilation rate; Behaviour; Benthic animals; Benthos; Bicarbonate ion; Biomass/Abundance/Elemental composition; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Cape_Elizabeth; Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Catabolic energy; Cell density; Clearance rate; Coast and continental shelf; Containers and aquaria (20-1000 L or 〈 1 m**2); Date; Day of experiment; Energy, per food mass; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Ingestion rate, organic weight; Inorganic matter, particulate; Laboratory experiment; Mollusca; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; Organic matter, particulate; Other metabolic rates; Other studied parameter or process; Oxygen/Nitrogen ratio; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Placopecten magellanicus; Replicate; Respiration; Respiration rate, oxygen; Salinity; Scope for growth; Shell, dry mass; Shell height; Shell thickness; Shell width; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Suspended matter, total; Temperate; Temperature; Temperature, water; Tissue, dry mass; Treatment; Type
    Type: Dataset
    Format: text/tab-separated-values, 39247 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Seawater carbonate chemistry and developmental, physiological and behavioral responses of larval Atlantic surfclams Spisula solidissima to projected climate change scenarios (2023)
    PANGAEA
    Details
    Publication Date: 2024-03-15
    Description: This study used laboratory experiments to assess developmental, physiological and behavioral responses to projected climate change scenarios using larval Atlantic surfclams Spisula solidissima solidissima, found in northwest Atlantic Ocean continental shelf waters.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Behaviour; Bicarbonate ion; Bicarbonate ion, standard deviation; Biomineralization index; Bottles or small containers/Aquaria (〈20 L); Calcification/Dissolution; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Calculated using seacarb after Orr et al. (2018); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Clearance rate, algae cell per larvae biovolume; Coast and continental shelf; Day of experiment; Deer_Isle; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Fugacity of carbon dioxide in seawater, standard deviation; Growth/Morphology; Growth rate; Identification; Laboratory experiment; Larvae, swimming; Mollusca; Mortality; Mortality/Survival; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; pH, standard deviation; Potentiometric; Potentiometric titration; Reproduction; Respiration; Respiration rate, oxygen, per larvae biovolume; Salinity; Salinity, standard deviation; Scope for growth; Settlement; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Speed, swimming; Spisula solidissima; Temperate; Temperature; Temperature, water; Temperature, water, standard deviation; Treatment: pH; Treatment: temperature; Type of study; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 14552 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Unknown
    Seawater carbonate chemistry and growth of Atlantic surfclam (Spisula solidissima) in laboratory experiments (2022)
    PANGAEA
    Details
    Publication Date: 2024-03-15
    Description: A dynamic energy budget (DEB) model integrating pCO2 was used to describe ocean acidification (OA) effects on Atlantic surfclam, Spisula solidissima, bioenergetics. Effects of elevated pCO2 on ingestion and somatic maintenance costs were simulated, validated, and adapted in the DEB model based upon growth and biological rates acquired during a 12-week laboratory experiment. Temperature and pCO2 were projected for the next 100 years following the intergovernmental panel on climate change representative concentration pathways scenarios (2.6, 6.0, and 8.5) and used as forcing variables to project surfclam growth and reproduction. End-of-century water warming and acidification conditions resulted in simulated faster growth for young surfclams and more energy allocated to reproduction until the beginning of the 22nd century when a reduction in maximum shell length and energy allocated to reproduction was observed for the RCP 8.5 scenario.
    Keywords: Alkalinity, total; Animalia; Aragonite saturation state; Benthic animals; Benthos; 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); Experiment day; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Height; Laboratory experiment; Length; Mollusca; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Replicate; Salinity; Shell, dry mass; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Spisula solidissima; Temperate; Temperature, water; Tissue, dry mass; Type; Width
    Type: Dataset
    Format: text/tab-separated-values, 15872 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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