Seawater carbonate chemistry and fitness and morphology of native oyster Ostrea edulis and invasive Magallana gigas
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2021
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| _version_ | 1867168218702938112 |
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| author | Lemasson, Anaëlle J Knights, Antony M |
| author_facet | Lemasson, Anaëlle J Knights, Antony M |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Ocean acidification and warming (OAW) pose a threat to marine organisms, with particular negative effects on molluscs, and can jeopardize the provision of associated ecosystem services. As predation is an important factor shaping populations in the marine environment, the ability of organisms to retain traits valuable in predation resistance under OAW may be decisive for future population maintenance. We examine how exposure to seawater temperature (control: 16.8°C and warm: 20°C) and atmospheric pCO2 (ambient [400], 750, and 1000 ppm) conditions affects traits linked to predation resistance (adductor muscle strength and shell strength) in two ecologically and economically important species of oysters (Magallana gigas and Ostrea edulis) and relate them to changes in morphometry and fitness (condition index, muscle and shell metrics). We show that O. edulis remained unimpacted following exposure to OAW scenarios. In contrast, the adductor muscle of M. gigas was 52% stronger under elevated temperature and 750 ppm pCO2, and its shell was 44% weaker under combined elevated temperature and 1000 ppm pCO2. This suggests greater resistance to mechanical predation toward the mid-21st century, but greater susceptibility toward the end of the century. For both species, individuals with more somatic tissue held an ecological advantage against predators; consequently, smaller oysters may be favoured by predators under OAW. By affecting fitness and predation resistance, OAW may be expected to induce shifts in predator-prey interactions and reshape assemblage structure due to species and size selection, which may consequently modify oyster reef functioning. This could in turn have implications for the provision of associated ecosystem services. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_950894 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seawater carbonate chemistry and fitness and morphology of native oyster Ostrea edulis and invasive Magallana gigas Lemasson, Anaëlle J Knights, Antony M Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Area; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Category; Coast and continental shelf; Condition index; Density; Dry mass; Force; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Laboratory experiment; Magallana gigas; Mollusca; Muscle, diameter; North Atlantic; Number; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Ostrea edulis; Other studied parameter or process; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, NBS scale; pH, standard deviation; pH, total scale; Potentiometric; Potentiometric titration; Salinity; Salinity, standard deviation; Shell, dry mass; Shell length; Shell strength; Shell thickness; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperate; Temperature; Temperature, water; Temperature, water, standard deviation; Treatment; Type Ocean acidification and warming (OAW) pose a threat to marine organisms, with particular negative effects on molluscs, and can jeopardize the provision of associated ecosystem services. As predation is an important factor shaping populations in the marine environment, the ability of organisms to retain traits valuable in predation resistance under OAW may be decisive for future population maintenance. We examine how exposure to seawater temperature (control: 16.8°C and warm: 20°C) and atmospheric pCO2 (ambient [400], 750, and 1000 ppm) conditions affects traits linked to predation resistance (adductor muscle strength and shell strength) in two ecologically and economically important species of oysters (Magallana gigas and Ostrea edulis) and relate them to changes in morphometry and fitness (condition index, muscle and shell metrics). We show that O. edulis remained unimpacted following exposure to OAW scenarios. In contrast, the adductor muscle of M. gigas was 52% stronger under elevated temperature and 750 ppm pCO2, and its shell was 44% weaker under combined elevated temperature and 1000 ppm pCO2. This suggests greater resistance to mechanical predation toward the mid-21st century, but greater susceptibility toward the end of the century. For both species, individuals with more somatic tissue held an ecological advantage against predators; consequently, smaller oysters may be favoured by predators under OAW. By affecting fitness and predation resistance, OAW may be expected to induce shifts in predator-prey interactions and reshape assemblage structure due to species and size selection, which may consequently modify oyster reef functioning. This could in turn have implications for the provision of associated ecosystem services. |
| title | Seawater carbonate chemistry and fitness and morphology of native oyster Ostrea edulis and invasive Magallana gigas |
| topic | Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Area; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Category; Coast and continental shelf; Condition index; Density; Dry mass; Force; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Laboratory experiment; Magallana gigas; Mollusca; Muscle, diameter; North Atlantic; Number; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Ostrea edulis; Other studied parameter or process; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, NBS scale; pH, standard deviation; pH, total scale; Potentiometric; Potentiometric titration; Salinity; Salinity, standard deviation; Shell, dry mass; Shell length; Shell strength; Shell thickness; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperate; Temperature; Temperature, water; Temperature, water, standard deviation; Treatment; Type |
| url | https://doi.org/10.1594/PANGAEA.950894 |