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| Main Authors: | , , , , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2011
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| Online Access: | https://doi.org/10.1594/PANGAEA.771572 |
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| _version_ | 1867168101261377536 |
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| author | Hikami, Mana Ushie, Hiroyuki Irie, Takahiro Fujita, Kazuhiko Kuroyanagi, Azumi Sakai, Kazuhiko Nojiri, Yukihiro Suzuki, Atsushi Kawahata, Hodaka |
| author_facet | Hikami, Mana Ushie, Hiroyuki Irie, Takahiro Fujita, Kazuhiko Kuroyanagi, Azumi Sakai, Kazuhiko Nojiri, Yukihiro Suzuki, Atsushi Kawahata, Hodaka |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Ocean acidification, which like global warming is an outcome of anthropogenic CO2emissions, severely impacts marine calcifying organisms, especially those living in coral reef ecosystems. However, knowledge about the responses of reef calcifiers to ocean acidification is quite limited, although coral responses are known to be generally negative. In a culture experiment with two algal symbiont-bearing, reef-dwelling foraminifers, Amphisorus kudakajimensis and Calcarina gaudichaudii, in seawater under five different pCO2 conditions, 245, 375, 588, 763 and 907 µatm, maintained with a precise pCO2-controlling technique, net calcification of A. kudakajimensis was reduced under higher pCO2, whereas calcification of C. gaudichaudii generally increased with increased pCO2. In another culture experiment conducted in seawater in which bicarbonate ion concentrations were varied under a constant carbonate ion concentration, calcification was not significantly different between treatments in Amphisorus hemprichii, a species closely related to A. kudakajimensis, or in C. gaudichaudii. From these results, we concluded that carbonate ion and CO2 were the carbonate species that most affected growth ofAmphisorus and Calcarina, respectively. The opposite responses of these two foraminifer genera probably reflect different sensitivities to these carbonate species, which may be due to their different symbiotic algae. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_771572 |
| institution | PANGAEA |
| language | en |
| publishDate | 2011 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seawater carbonate chemistry and biological processes of Amphisorus hemprichii, Amphisorus kudakajimensis and Calcarina gaudichaudii during experiments, 2011 Hikami, Mana Ushie, Hiroyuki Irie, Takahiro Fujita, Kazuhiko Kuroyanagi, Azumi Sakai, Kazuhiko Nojiri, Yukihiro Suzuki, Atsushi Kawahata, Hodaka Alkalinity, Gran titration (Gran, 1950); Alkalinity, total; Amphisorus hemprichii; Amphisorus hemprichii, shell, weight, least square, standard error; Amphisorus hemprichii, shell, weight, least square mean; Amphisorus kudakajimensis; Amphisorus kudakajimensis, shell, weight, least square, standard error; Amphisorus kudakajimensis, shell, weight, least square mean; Aragonite saturation state; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcarina gaudichaudii; Calcarina gaudichaudii, shell, weight, least square, standard error; Calcarina gaudichaudii, shell, weight, least square mean; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chromista; Coast and continental shelf; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Experimental treatment; Foraminifera; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Identification; Laboratory experiment; North Pacific; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, total scale; pH meter (Metrohm, 826 pH mobile); Salinity; Single species; Species; Temperate; Temperature, water; Thermo Cahn C-35 microbalance; Time, incubation; Zooplankton Ocean acidification, which like global warming is an outcome of anthropogenic CO2emissions, severely impacts marine calcifying organisms, especially those living in coral reef ecosystems. However, knowledge about the responses of reef calcifiers to ocean acidification is quite limited, although coral responses are known to be generally negative. In a culture experiment with two algal symbiont-bearing, reef-dwelling foraminifers, Amphisorus kudakajimensis and Calcarina gaudichaudii, in seawater under five different pCO2 conditions, 245, 375, 588, 763 and 907 µatm, maintained with a precise pCO2-controlling technique, net calcification of A. kudakajimensis was reduced under higher pCO2, whereas calcification of C. gaudichaudii generally increased with increased pCO2. In another culture experiment conducted in seawater in which bicarbonate ion concentrations were varied under a constant carbonate ion concentration, calcification was not significantly different between treatments in Amphisorus hemprichii, a species closely related to A. kudakajimensis, or in C. gaudichaudii. From these results, we concluded that carbonate ion and CO2 were the carbonate species that most affected growth ofAmphisorus and Calcarina, respectively. The opposite responses of these two foraminifer genera probably reflect different sensitivities to these carbonate species, which may be due to their different symbiotic algae. |
| title | Seawater carbonate chemistry and biological processes of Amphisorus hemprichii, Amphisorus kudakajimensis and Calcarina gaudichaudii during experiments, 2011 |
| topic | Alkalinity, Gran titration (Gran, 1950); Alkalinity, total; Amphisorus hemprichii; Amphisorus hemprichii, shell, weight, least square, standard error; Amphisorus hemprichii, shell, weight, least square mean; Amphisorus kudakajimensis; Amphisorus kudakajimensis, shell, weight, least square, standard error; Amphisorus kudakajimensis, shell, weight, least square mean; Aragonite saturation state; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcarina gaudichaudii; Calcarina gaudichaudii, shell, weight, least square, standard error; Calcarina gaudichaudii, shell, weight, least square mean; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chromista; Coast and continental shelf; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Experimental treatment; Foraminifera; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Identification; Laboratory experiment; North Pacific; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, total scale; pH meter (Metrohm, 826 pH mobile); Salinity; Single species; Species; Temperate; Temperature, water; Thermo Cahn C-35 microbalance; Time, incubation; Zooplankton |
| url | https://doi.org/10.1594/PANGAEA.771572 |