Publication Date:
2024-03-15
Description:
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.
Keywords:
Alkalinity, total; Alkalinity, total, standard error; Animalia; Aragonite saturation state; Aragonite saturation state, standard error; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calcite saturation state, standard error; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Change; Coast and continental shelf; CTD; Day; Density, sigma-theta (0); Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Hydrostatic pressure; Identification; Incubation duration; Individuals; Laboratory experiment; LATITUDE; Limacina helicina; LONGITUDE; Mollusca; Month; Mortality/Survival; Net oxygen consumption; Nitrate and Nitrite; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Oxygen; Oxygen, dissolved; Oxygen saturation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; Pelagos; pH; Phosphate; Quality flag; Respiration; Respiration rate, oxygen, per dry mass; Respiration rate, oxygen, per wet mass; Salinity; Sample code/label; Sample type; Silicate; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Station label; Temperate; Temperature, water; Treatment; Type of study; Year of sampling; Zooplankton
Type:
Dataset
Format:
text/tab-separated-values, 1116 data points
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