Seawater carbonate chemistry and pteropod Limacina helicina antarctica shell dissolution during experiments, 2012
Data(s) |
24/04/2012
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Resumo |
Anthropogenic ocean acidification is likely to have negative effects on marine calcifying organisms, such as shelled pteropods, by promoting dissolution of aragonite shells. Study of shell dissolution requires an accurate and sensitive method for assessing shell damage. Shell dissolution was induced through incubations in CO2 enriched seawater for between 4 and 14 days. We describe a procedure that allows the level of dissolution to be assessed and classified into three main types: Type I with partial dissolution of the prismatic layer; Type II with exposure of underlying crossed-lamellar layer, and Type III, where crossed-lamellar layer shows signs of dissolution. Levels of dissolution showed a good correspondence to the incubation conditions, with the most severe damage found in specimens held for 14 d in undersaturated condition (Ohm ~ 0.8). This methodology enables the response of small pelagic calcifiers to acidified conditions to be detected at an early stage, thus making pteropods a valuable bioindicator of future ocean acidification. |
Formato |
text/tab-separated-values, 188 data points |
Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.779926 doi:10.1594/PANGAEA.779926 |
Idioma(s) |
en |
Publicador |
PANGAEA |
Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
Fonte |
Supplement to: Bednarsek, Nina; Tarling, Geraint A; Bakker, Dorothee C E; Fielding, Sophie; Cohen, Anne L; Kuzirian, Alan; McCorkle, Daniel C; Lézé, Bertrand; Montagna, Roberto (2012): Description and quantification of pteropod shell dissolution: A sensitive bioindicator of ocean acidification. Global Change Biology, 18(7), 2378-2388, doi:10.1111/j.1365-2486.2012.02668.x |
Palavras-Chave | #Alkalinity, total; Alkalinity, total, standard deviation; Antarctic; Aragonite saturation state; Aragonite saturation state, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, partial pressure, standard deviation; Coulometric titration; dissolution; Dissolution rate; Dissolution rate, standard deviation; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Experimental treatment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Individuals, non-dissolving; Individuals, non-dissolving, standard-deviation; laboratory; mollusks; morphology; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Phosphate; Salinity; Scanning electron microscope (SEM); Silicate; Species; Temperature, water; Time, incubation; Titration potentiometric; zooplankton |
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Dataset |