Seawater carbonate chemistry and respiration rate of pteropod Limacina helicina ...

• Main Authors: Miller, M R, Oakes, R L, Covert, P A, Ianson, Debby, Dower, J F
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Animalia; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Laboratory experiment; Limacina helicina; Mollusca; Mortality/Survival; North Pacific; Pelagos; Respiration; Single species; Temperate; Zooplankton; Type of study; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Identification; Sample code/label; Station label; Year of sampling; Month; Day; LATITUDE; LONGITUDE; Hydrostatic pressure; Temperature, water; Salinity; Density, sigma-theta 0; Oxygen, dissolved; Oxygen; Quality flag; Carbon, inorganic, dissolved; Alkalinity, total; Nitrate and Nitrite; Silicate; Phosphate; Sample type; Treatment; Individuals; Incubation duration; pH; Partial pressure of carbon dioxide water at sea surface temperature wet air; Aragonite saturation state; Calcite saturation state; Carbon, inorganic, dissolved, standard error; Alkalinity, total, standard error; Partial pressure of carbon dioxide water at sea surface temperature wet air, standard error; Aragonite saturation state, standard error; Calcite saturation state, standard error; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.960522; https://doi.pangaea.de/10.1594/PANGAEA.960522

The pteropod Limacina helicina has become an important bioindicator species for the negative impacts of ocean acidification (OA) on marine ecosystems. However, pteropods diversified during earlier high CO2 periods in Earth history and currently inhabit regions that are naturally corrosive to their shells, suggesting that they possess mechanisms to survive unfavourable conditions. Recent work, which is still under considerable debate, has proposed that the periostracum, a thin organic coating on the outer shell, protects pteropods from shell dissolution. Here, we provide direct evidence that shows that damage to the L. helicina periostracum results in dissolution of the underlying shell when exposed to corrosive water for ∼8 d, while an intact periostracum protects the shell from dissolution under the same conditions. This important first line of defence suggests that pteropods are more resistant to OA-induced shell dissolution than is generally accepted. ... : 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 2023-07-10. ...