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  • 2015-2019  (10)
  • 2000-2004  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Interacting effects of CO2 partial pressure and temperature on photosynthesis and calcification in a scleractinian coral (2003)
    Oxford, UK : Blackwell Science Ltd
    Global change biology 9 (2003), S. 0 
    Details
    ISSN: 1365-2486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: We show here that CO2 partial pressure (pCO2) and temperature significantly interact on coral physiology. The effects of increased pCO2 and temperature on photosynthesis, respiration and calcification rates were investigated in the scleractinian coral Stylophora pistillata. Cuttings were exposed to temperatures of 25°C or 28°C and to pCO2 values of ca. 460 or 760 μatm for 5 weeks. The contents of chlorophyll c2 and protein remained constant throughout the experiment, while the chlorophyll a content was significantly affected by temperature, and was higher under the ‘high-temperature–high-pCO2’ condition. The cell-specific density was higher at ‘high pCO2’ than at ‘normal pCO2’ (1.7 vs. 1.4). The net photosynthesis normalized per unit protein was affected by both temperature and pCO2, whereas respiration was not affected by the treatments. Calcification decreased by 50% when temperature and pCO2 were both elevated. Calcification under normal temperature did not change in response to an increased pCO2. This is not in agreement with numerous published papers that describe a negative relationship between marine calcification and CO2. The confounding effect of temperature has the potential to explain a large portion of the variability of the relationship between calcification and pCO2 reported in the literature, and warrants a re-evaluation of the projected decrease of marine calcification by the year 2100.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2486.2003.00678.x
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Seawater carbonate chemistry and calcification rate during experiments with coral Stylophora pistillata, 2003 (2003)
    PANGAEA
    Details
    Publication Date: 2024-03-15
    Description: We show here that CO2 partial pressure (pCO2) and temperature significantly interact on coral physiology. The effects of increased pCO2 and temperature on photosynthesis, respiration and calcification rates were investigated in the scleractinian coral Stylophora pistillata. Cuttings were exposed to temperatures of 25°C or 28°C and to pCO2 values of ca. 460 or 760 muatm for 5 weeks. The contents of chlorophyll c2 and protein remained constant throughout the experiment, while the chlorophyll a content was significantly affected by temperature, and was higher under the 'high-temperature-high-pCO2' condition. The cell-specific density was higher at 'high pCO2' than at 'normal pCO2' (1.7 vs. 1.4). The net photosynthesis normalized per unit protein was affected by both temperature and pCO2, whereas respiration was not affected by the treatments. Calcification decreased by 50% when temperature and pCO2 were both elevated. Calcification under normal temperature did not change in response to an increased pCO2. This is not in agreement with numerous published papers that describe a negative relationship between marine calcification and CO2. The confounding effect of temperature has the potential to explain a large portion of the variability of the relationship between calcification and pCO2 reported in the literature, and warrants a re-evaluation of the projected decrease of marine calcification by the year 2100.
    Keywords: Alkalinity, total; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Calcification/Dissolution; Calcification rate; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cnidaria; Containers and aquaria (20-1000 L or 〈 1 m**2); DATE/TIME; EPOCA; Estimated; Estimated by regressing O2 against time; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Identification; Laboratory experiment; Laboratory strains; Measured; PAR sensor LI-1000, LI-COR Inc.; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Salinity; Single species; Stylophora pistillata; Temperature; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 1600 data points
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    DATA PANGAEA
  • 3
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    Physiological response of the cold-water coral Desmophyllum dianthus to thermal stress and ocean acidification (2016)
    PANGAEA
    In:  Supplement to: Gori, Andrea; Ferrier-Pagès, Christine; Hennige, Sebastian J; Murray, Fiona; Rottier, Céline; Wicks, L C; Roberts, J Murray (2016): Physiological response of the cold-water coral Desmophyllum dianthus to thermal stress and ocean acidification. PeerJ, 4, e1606, https://doi.org/10.7717/peerj.1606
    Details
    Publication Date: 2024-03-15
    Description: Rising temperatures and ocean acidification driven by anthropogenic carbon emissions threaten both tropical and temperate corals. However, the synergistic effect of these stressors on coral physiology is still poorly understood, in particular for cold-water corals. This study assessed changes in key physiological parameters (calcification, respiration and ammonium excretion) of the widespread cold-water coral Desmophyllum dianthus maintained for 8 months at two temperatures (ambient 12 °C and elevated 15 °C) and two pCO2 conditions (ambient 390 ppm and elevated 750 ppm). At ambient temperatures no change in instantaneous calcification, respiration or ammonium excretion rates was observed at either pCO2 levels. Conversely, elevated temperature (15 °C) significantly reduced calcification rates, and combined elevated temperature and pCO2 significantly reduced respiration rates. Changes in the ratio of respired oxygen to excreted nitrogen (O:N), which provides information on the main sources of energy being metabolized, indicated a shift from mixed use of protein and carbohydrate/lipid as metabolic substrates under control conditions, to less efficient protein-dominated catabolism under both stressors. Overall, this study shows that the physiology of D. dianthus is more sensitive to thermal than pCO2 stress, and that the predicted combination of rising temperatures and ocean acidification in the coming decades may severely impact this cold-water coral species.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Ammonium, excretion; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthic animals; Benthos; Bicarbonate ion; Calcification/Dissolution; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2calc; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cnidaria; Containers and aquaria (20-1000 L or 〈 1 m**2); Deep-sea; Desmophyllum dianthus; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Laboratory experiment; Mediterranean Sea; Net calcification rate of calcium carbonate; OA-ICC; Ocean Acidification International Coordination Centre; Other metabolic rates; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Potentiometric; Potentiometric titration; Registration number of species; Replicate; Respiration; Respiration rate, carbon; Salinity; Salinity, standard deviation; Single species; Species; Temperate; Temperature; Temperature, water; Temperature, water, standard deviation; Type; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 432 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Seawater carbonate chemistry and calcification during experiments with corals, 2003 (2003)
    PANGAEA
    Details
    Publication Date: 2024-03-15
    Keywords: Acropora verweyi; Alkalinity, total; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Calcite saturation state; 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); EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; EXP; Experiment; Experimental treatment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Galaxea fascicularis; Laboratory experiment; Marubini_etal_03; Measured; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pavona cactus; pH; Salinity; Single species; Temperate; Temperature, water; Titration potentiometric (Metler-Toledo); Turbinaria reniformis
    Type: Dataset
    Format: text/tab-separated-values, 90 data points
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    DATA PANGAEA
  • 5
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    Seawater carbonate chemistry, photosynthesis, respiration and calcification during experiments with scleractinian coral Stylophora pistillata, 2003 (2003)
    PANGAEA
    Details
    Publication Date: 2024-03-15
    Description: We show here that CO2 partial pressure (pCO2) and temperature significantly interact on coral physiology. The effects of increased pCO2 and temperature on photosynthesis, respiration and calcification rates were investigated in the scleractinian coral Stylophora pistillata. Cuttings were exposed to temperatures of 25°C or 28°C and to pCO2 values of ca. 460 or 760 muatm for 5 weeks. The contents of chlorophyll c2 and protein remained constant throughout the experiment, while the chlorophyll a content was significantly affected by temperature, and was higher under the 'high-temperature-high-pCO2' condition. The cell-specific density was higher at 'high pCO2' than at 'normal pCO2' (1.7 vs. 1.4). The net photosynthesis normalized per unit protein was affected by both temperature and pCO2, whereas respiration was not affected by the treatments. Calcification decreased by 50% when temperature and pCO2 were both elevated. Calcification under normal temperature did not change in response to an increased pCO2. This is not in agreement with numerous published papers that describe a negative relationship between marine calcification and CO2. The confounding effect of temperature has the potential to explain a large portion of the variability of the relationship between calcification and pCO2 reported in the literature, and warrants a re-evaluation of the projected decrease of marine calcification by the year 2100.
    Keywords: Alkalinity, total; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Biomass/Abundance/Elemental composition; Calcification/Dissolution; Calcification rate; Calcite saturation state; Calculated from skeletal dry weight; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cnidaria; Containers and aquaria (20-1000 L or 〈 1 m**2); Counting; Density, cell-specific; EPOCA; Estimated; Estimated by regressing O2 against time; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; EXP; Experiment; Experimental treatment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Laboratory experiment; Laboratory strains; Measured; Net photosynthesis rate; PAR sensor LI-1000, LI-COR Inc.; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Primary production/Photosynthesis; Respiration; Respiration rate, oxygen; Reynaud_etal_03; Salinity; Single species; Stylophora pistillata; Temperature; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 76 data points
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    DATA PANGAEA
  • 6
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    Coral pH regulation of the calcifying fluid is modulated by seawater dissolved inorganic carbon concentration (2017)
    PANGAEA
    In:  Supplement to: Comeau, Steeve; Tambutté, Eric; Carpenter, Robert C; Edmunds, Peter J; Evensen, Nicolas R; Allemand, Denis; Ferrier-Pagès, Christine; Tambutté, Sylvie; Venn, Alexander A (2017): Coral calcifying fluid pH is modulated by seawater carbonate chemistry not solely seawater pH. Proceedings of the Royal Society B-Biological Sciences, 284(1847), 20161669, https://doi.org/10.1098/rspb.2016.1669
    Details
    Publication Date: 2024-03-15
    Description: Reef coral calcification depends on regulation of pH in the internal calcifying fluid in which the coral skeleton forms. However, little is known about calcifying fluid pH (pHCF) regulation, despite its importance in determining the response of corals to ocean acidification. Here, we investigate the impact of seawater dissolved inorganic carbon (DIC) concentration on calcifying fluid pH in the coral Stylophora pistillata in seawater with manipulated [DIC] and constant pH. Our results reveal that regulation of pHCF and calcification rates are sensitive to changes in seawater [DIC] in the light and dark. While part of this relationship can be explained by changes in rates of photosynthesis and respiration, our data point to the importance of seawater DIC in pH regulation of the coral's calcifying cells. Our findings contribute towards a mechanistic understanding of how and why coral calcification is sensitive to changes in seawater carbonate chemistry, which is needed for predicting effects of environmental change on coral reefs and for robust interpretations of isotopic paleoenvironmental records in coral skeletons.
    Keywords: Acid-base regulation; Alkalinity, total; Alkalinity, total, standard error; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Calcification/Dissolution; Calcification rate, standard error; Calcification rate of calcium carbonate; Calcifying fluid, pH; Calcifying fluid, pH, standard error; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cnidaria; Containers and aquaria (20-1000 L or 〈 1 m**2); Figure; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Gross photosynthesis rate, oxygen, standard error; Laboratory experiment; Laboratory strains; Net photosynthesis rate, oxygen, standard error; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard error; Photosynthesis rate of oxygen, per symbiont cell; Primary production/Photosynthesis; Registration number of species; Respiration; Respiration rate, oxygen; Respiration rate, oxygen, standard error; Salinity; Single species; Species; Stylophora pistillata; Temperature, water; Temperature, water, standard error; Treatment; Type; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 639 data points
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    DATA PANGAEA
  • 7
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    Sterol content and composition in the CWC Dendrophyllia cornigera and sediment from the Cantabrian Sea (Northeast Atlantic Ocean) and the Menorca Channel (Western Mediterranean Sea) (2019)
    PANGAEA
    Details
    Publication Date: 2024-03-14
    Keywords: Area/locality; Cantabrian Sea; cold-water corals; DEPTH, sediment/rock; Event label; fatty acids; fatty alcohols; Garcia del Cid; INDEMARES-4; INDEMARES-4_Menorca-Corals; INDEMARES-4_Menorca-Sediment; JAGO; lipids; M84/5; M84/5_Cantabrian-Sea; Mediterranean Sea; Meteor (1986); Sample material; Species; sterols; Sterols; Submersible JAGO; Television-Grab; TVG; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 198 data points
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    DATA PANGAEA
  • 8
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    Fatty alcohol content and composition in the CWC Dendrophyllia cornigera and sediment from the Cantabrian Sea (Northeast Atlantic Ocean) and the Menorca Channel (Western Mediterranean Sea) (2019)
    PANGAEA
    Details
    Publication Date: 2024-03-14
    Keywords: Area/locality; Cantabrian Sea; cold-water corals; DEPTH, sediment/rock; Event label; fatty acids; fatty alcohols; Fatty alcohols; Garcia del Cid; INDEMARES-4; INDEMARES-4_Menorca-Corals; INDEMARES-4_Menorca-Sediment; JAGO; lipids; M84/5; M84/5_Cantabrian-Sea; Mediterranean Sea; Meteor (1986); Sample material; Species; sterols; Submersible JAGO; Television-Grab; TVG; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 198 data points
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    DATA PANGAEA
  • 9
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    Fatty acid content and composition in the CWC Dendrophyllia cornigera and sediment from the Cantabrian Sea (Northeast Atlantic Ocean) and the Menorca Channel (Western Mediterranean Sea) (2019)
    PANGAEA
    Details
    Publication Date: 2024-03-14
    Keywords: Area/locality; Cantabrian Sea; cold-water corals; DEPTH, sediment/rock; Event label; fatty acids; Fatty acids; fatty alcohols; Garcia del Cid; INDEMARES-4; INDEMARES-4_Menorca-Corals; INDEMARES-4_Menorca-Sediment; JAGO; lipids; M84/5; M84/5_Cantabrian-Sea; Mediterranean Sea; Meteor (1986); Monounsaturated fatty acids; Polyunsaturated fatty acids; Sample material; Saturated fatty acids; Species; sterols; Submersible JAGO; Television-Grab; TVG; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 550 data points
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    DATA PANGAEA
  • 10
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    Fatty acid, fatty alcohol and sterol content and composition in the CWC Dendrophyllia cornigera and sediment from the Cantabrian Sea (Northeast Atlantic Ocean) and the Menorca Channel (Western Mediterranean Sea) (2019)
    PANGAEA
    In:  Supplement to: Gori, Andrea; Tolosa, Imma; Orejas, Covadonga; Rueda, Lucia; Viladrich, Nuria; Grinyó, Jordi; Flögel, Sascha; Grover, Renaud; Ferrier-Pagès, Christine (2018): Biochemical composition of the cold-water coral Dendrophyllia cornigera under contrasting productivity regimes: Insights from lipid biomarkers and compound-specific isotopes. Deep Sea Research Part I: Oceanographic Research Papers, 141, 106-117, https://doi.org/10.1016/j.dsr.2018.08.010
    Details
    Publication Date: 2024-03-14
    Description: The cold-water coral (CWC) Dendrophyllia cornigera is widely distributed in areas of both high and low productivity, suggesting a significant trophic plasticity of this coral depending on the food available in the environment. In this study, lipid biomarkers and their isotopic signature were compared in colonies of D. cornigera and sediment from the highly productive Cantabrian Sea (Northeast Atlantic Ocean) and the less productive Menorca Channel (Western Mediterranean Sea). Lipid content and composition in coral tissue clearly reflected the contrasting productivity in the two areas. Cantabrian corals presented higher content in fatty acids (FA), fatty alcohols and sterols than Menorca corals. Energy storage (saturated + mono-unsaturated FA) to structural (poly-unsaturated FA) ratio was higher in Cantabrian than in Menorca corals. The high ΣC20:1 content as well as PUFA(n-3)/PUFA(n-6) ratio suggest that Cantabrian corals mainly feed on phytoplankton and herbivorous grazers. This is also supported by the higher mono-unsaturated fatty alcohols (MUOH) and long chain mono-unsaturated fatty alcohols (LCMUOH) content in Cantabrian compared to Menorca corals. Conversely, higher PUFA(n-6) content in Menorca corals, with the dominance of C22:4(n-6) and C20:4(n-6), as well as the dominance of cholesterol and norC27Δ5,22 among sterols, point to a higher trophic role of dinoflagellates and invertebrates. The observed geographical variability in trophic ecology supports a high trophic plasticity of D. cornigera, which may favour the wide distribution of this CWC in areas with highly contrasted food availability.
    Keywords: Cantabrian Sea; cold-water corals; fatty acids; fatty alcohols; lipids; Mediterranean Sea; sterols
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
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