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  • 2010-2014  (17)
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Keywords
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Years
Year
  • 1
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    Effects of feeding and light intensity on the response of the coral Porites rus to ocean acidification (2013)
    Springer
    Details
    Publication Date: 2013-01-08
    Print ISSN: 0025-3162
    Electronic ISSN: 1432-1793
    Topics: Biology
    Published by Springer
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    PAPER CURRENT
  • 2
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    Impacts of ocean acidification on marine shelled molluscs (2013)
    Springer
    Details
    Publication Date: 2013-04-24
    Print ISSN: 0025-3162
    Electronic ISSN: 1432-1793
    Topics: Biology
    Published by Springer
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    PAPER CURRENT
  • 3
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    Sink and swim: a status review of thecosome pteropod culture techniques (2014)
    Oxford University Press
    Details
    Publication Date: 2014-02-10
    Print ISSN: 0142-7873
    Electronic ISSN: 1464-3774
    Topics: Biology
    Published by Oxford University Press
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    PAPER CURRENT
  • 4
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    Understanding the Threats of Ocean Acidification to Coral Reefs (2013)
    The Oceanography Society
    Details
    Publication Date: 2013-09-01
    Print ISSN: 1042-8275
    Electronic ISSN: 2377-617X
    Topics: Geosciences
    Published by The Oceanography Society
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    PAPER CURRENT
  • 5
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    Impacts of ocean acidification on marine shelled molluscs (2013)
    In:  EPIC3Marine Biology, 160(8), pp. 2207-2245, ISSN: 0025-3162
    Details
    Publication Date: 2019-07-16
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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    PAPER (OA)
  • 6
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    Sink and swim: a status review of thecosome pteropod culture techniques (2014)
    OXFORD UNIV PRESS
    In:  EPIC3Journal of Plankton Research, OXFORD UNIV PRESS, ISSN: 0142-7873
    Details
    Publication Date: 2017-01-10
    Description: The widespread distribution of pteropods, their role in ocean food webs and their sensitivity to ocean acidification and warming has renewed scientific interest in this group of zooplankton. Unfortunately, their fragile shell, sensitivity to handling, unknowns surrounding buoyancy regulation and poorly described feeding mechanisms make thecosome pteropods notoriously difficult to maintain in the laboratory. The resultant high mortality rates and unnatural behaviours may confound experimental findings. The high mortality rate also discourages the use of periods of acclimation to experimental conditions and precludes vital long-term studies. Here we summarize the current status of culture methodology to provide a comprehensive basis for future experimental work and culture system development.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev , info:eu-repo/semantics/article
    Format: application/pdf
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    PAPER (OA)
  • 7
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    Limacina helicina size weight relationship in Kongsfjorden Svalbard, May 2009 (2010)
    PANGAEA
    Details
    Publication Date: 2023-02-24
    Description: Thecosome pteropods (pelagic mollusks) can play a key role in the food web of various marine ecosystems. They are a food source for zooplankton or higher predators such as fishes, whales and birds that is particularly important in high latitude areas. Since they harbor a highly soluble aragonitic shell, they could be very sensitive to ocean acidification driven by the increase of anthropogenic CO2 emissions. The effect of changes in the seawater chemistry was investigated on Limacina helicina, a key species of Arctic pelagic ecosystems. Individuals were kept in the laboratory under controlled pCO2 levels of 280, 380, 550, 760 and 1020 µatm and at control (0°C) and elevated (4°C) temperatures. The respiration rate was unaffected by pCO2 at control temperature, but significantly increased as a function of the pCO2 level at elevated temperature. pCO2 had no effect on the gut clearance rate at either temperature. Precipitation of CaCO3, measured as the incorporation of 45Ca, significantly declined as a function of pCO2 at both temperatures. The decrease in calcium carbonate precipitation was highly correlated to the aragonite saturation state. Even though this study demonstrates that pteropods are able to precipitate calcium carbonate at low aragonite saturation state, the results support the current concern for the future of Arctic pteropods, as the production of their shell appears to be very sensitive to decreased pH. A decline of pteropod populations would likely cause dramatic changes to various pelagic ecosystems.
    Keywords: EPOCA; European Project on Ocean Acidification; Limacina helicina, length; Limacina helicina, mass; ORDINAL NUMBER
    Type: Dataset
    Format: text/tab-separated-values, 140 data points
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    DATA PANGAEA
  • 8
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    Seawater carbonate chemistry and shell length of Mediterranean pteropod Cavolinia inflexa larvae during experiments (2010)
    PANGAEA
    In:  Laboratoire d'Océanographie de Villefranche | Supplement to: Comeau, Steeve; Gorsky, G; Alliouane, Samir; Gattuso, Jean-Pierre (2010): Larvae of the pteropod Cavolinia inflexa exposed to aragonite undersaturation are viable but shell-less. Marine Biology, 157(10), 2341-2345, https://doi.org/10.1007/s00227-010-1493-6
    Details
    Publication Date: 2024-03-15
    Description: Larvae of the Mediterranean pteropod Cavolinia inflexa were maintained at controlled pHT values of 8.1, 7.82 and 7.51, equivalent respectively to pCO2 levels of 380, 857 and 1713 µatm. At pHT 7.82 larvae exhibited malformations and lower shell growth, compared to the control condition. At pHT 7.51 the larvae did not make shells but were viable and showed a normal development. However, smaller shells or no shells will have both ecological (food web) and biogeochemical (export of carbon and carbonate) consequences. These results confirm that 1pteropods, as well as the species dependent upon them as a food resource, will be severely impacted by ocean acidification.
    Keywords: Alkalinity, Gran titration (Gran, 1950); Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cavolinia inflexa; Cavolinia inflexa, shell length; Coast and continental shelf; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Experimental treatment; Experiment day; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Identification; Laboratory experiment; Mediterranean Sea; Microscopy; Mollusca; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; pH meter (Metrohm, 826 pH mobile); Salinity; Single species; Temperate; Temperature, water; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 633 data points
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    DATA PANGAEA
  • 9
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    Seawater carbonate chemistry and calcification rates of Porites rus and Hydrolithon onkodes in experiments of Moorea (2013)
    PANGAEA
    In:  Supplement to: Comeau, Steeve; Carpenter, Robert C; Edmunds, Peter J (2012): Coral reef calcifiers buffer their response to ocean acidification using both bicarbonate and carbonate. Proceedings of the Royal Society B-Biological Sciences, 280(1753), https://doi.org/10.1098/rspb.2012.2374
    Details
    Publication Date: 2024-03-15
    Description: Central to evaluating the effects of ocean acidification (OA) on coral reefs is understanding how calcification is affected by the dissolution of CO2 in sea water, which causes declines in carbonate ion concentration [CO3]2- and increases in bicarbonate ion concentration [HCO3]-. To address this topic, we manipulated [CO3]2- and [HCO3]- to test the effects on calcification of the coral Porites rus and the alga Hydrolithon onkodes, measured from the start to the end of a 15-day incubation, as well as in the day and night. [CO3]2- played a significant role in light and dark calcification of P. rus, whereas [HCO3]- mainly affected calcification in the light. Both [CO3]2- and [HCO3]- had a significant effect on the calcification of H. onkodes, but the strongest relationship was found with [CO3]2-. Our results show that the negative effect of declining [CO3]2- on the calcification of corals and algae can be partly mitigated by the use of [HCO3]- for calcification and perhaps photosynthesis. These results add empirical support to two conceptual models that can form a template for further research to account for the calcification response of corals and crustose coralline algae to OA.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthic animals; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcification/Dissolution; Calcification rate of calcium carbonate; Calcite saturation state; Calculated using seacarb; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Cnidaria; Coast and continental shelf; Containers and aquaria (20-1000 L or 〈 1 m**2); DATE/TIME; Date/time end; EXP; Experiment; French Polynesia; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Hydrolithon onkodes; Irradiance; Laboratory experiment; Macroalgae; Moorea; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Plantae; Porites rus; Potentiometric; Potentiometric titration; Rhodophyta; Salinity; South Pacific; Species; Species interaction; Temperature, standard deviation; Temperature, water; Treatment; Tropical
    Type: Dataset
    Format: text/tab-separated-values, 11870 data points
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    DATA PANGAEA
  • 10
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    Effects of feeding and light intensity on the response of the coral Porites rus to ocean acidification (2013)
    PANGAEA
    In:  Supplement to: Comeau, Steeve; Carpenter, Robert C; Edmunds, Peter J (2013): Effects of feeding and light intensity on the response of the coral Porites rus to ocean acidification. Marine Biology, 160(5), 1127-1134, https://doi.org/10.1007/s00227-012-2165-5
    Details
    Publication Date: 2024-03-15
    Description: Recently, it has been suggested that there are conditions under which some coral species appear to be resistant to the effects of ocean acidification. To test if such resistance can be explained by environmental factors such as light and food availability, the present study investigated the effect of 3 feeding regimes crossed with 2 light levels on the response of the coral Porites rus to 2 levels of pCO2 at 28 °C. After 1, 2, and 3 weeks of incubation under experimental conditions, none of the factors-including pCO2-significantly affected area-normalized calcification and biomass-normalized calcification. Biomass also was unaffected during the first 2 weeks, but after 3 weeks, corals that were fed had more biomass per unit area than starved corals. These results suggest that P. rus is resistant to short-term exposure to high pCO2, regardless of food availability and light intensity. P. rus might therefore represent a model system for exploring the genetic basis of tolerance to OA.
    Keywords: Alkalinity, total; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Buoyant weighing technique according to Davies (1989); Calcification/Dissolution; Calcification rate of calcium carbonate; Calcite saturation state; Calculated using seacarb; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cnidaria; Coast and continental shelf; Containers and aquaria (20-1000 L or 〈 1 m**2); Damage rate, standard deviation; Date; EXP; Experiment; French Polynesia; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Irradiance; Laboratory experiment; Light; Moorea; OA-ICC; Ocean Acidification International Coordination Centre; Other; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Porites rus; Potentiometric; Potentiometric titration; Salinity; Sample code/label; Single species; South Pacific; Species; Temperature, water; Treatment; Tropical
    Type: Dataset
    Format: text/tab-separated-values, 6264 data points
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    DATA PANGAEA
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