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  • Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calcite saturation state, standard deviation; 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; Cell density; Chaetoceros criophilus; Coast and continental shelf; Community composition and diversity; Coscinodiscus sp.; Coulometric titration; Cylindrotheca fusiformis; Entire community; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Growth rate, standard deviation; Incubation duration; Laboratory experiment; Navicula sp.; 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); Pelagos; pH; pH, standard deviation; Pseudonitzschia delicatissima; Salinity; Sample ID; South Pacific; Species; Spectrophotometric; Temperate; Temperature; Temperature, water; Thalassiosira sp.; Treatment  (1)
  • Alkalinity, total; Alkalinity, total, standard error; Ammonium; Ammonium, standard error; Aragonite saturation state; Bicarbonate ion; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; EXP; Experiment; Experiment duration; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Nitrate and Nitrite; Nitrate and Nitrite, standard error; Parameter; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard error; Phosphate; Phosphate, standard error; Potentiometric; Potentiometric titration; Registration number of species; Salinity; Salinity, standard error; Sample ID; South Pacific; Species; Tasmania_Hobart; Temperature, water; Temperature, water, standard error; Treatment; Type; Uniform resource locator/link to reference  (1)
  • Alkalinity, total; Alkalinity, total, standard error; Aragonite saturation state; Arthrocardia corymbosa; Benthos; Bicarbonate ion; Bicarbonate ion, standard error; Biomass/Abundance/Elemental composition; Calcification/Dissolution; Calcification rate of calcium carbonate; Calcite; Calcite saturation state; Calculated; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbon, organic, total; Carbon/Nitrogen ratio; Carbonate ion; Carbonate ion, standard error; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard error; Chlorophyll a; Chlorophyll c; Chlorophyll d; Coast and continental shelf; Containers and aquaria (20-1000 L or 〈 1 m**2); Diffusive boundary layer; Diffusive boundary layer, standard error; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Identification; Karitane_South_Island; Laboratory experiment; Light capturing capacity; Light saturation point; Macroalgae; Maximal electron transport rate, relative; Maximum photochemical quantum yield of photosystem II; Nitrogen, organic; OA-ICC; Ocean Acidification International Coordination Centre; 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; pH; pH, standard error; Photoinhibition; Phycocyanin; Phycoerythrin; Plantae; Potentiometric; Potentiometric titration; Primary production/Photosynthesis; Proportion; Recruitment; Recruit size; Reproduction; Rhodophyta; Salinity; Single species; South Pacific; Species; Temperate; Temperature, water; Temperature, water, standard error; Treatment; δ13C; δ15N  (1)
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  • 1
    Publication Date: 2024-03-15
    Keywords: Alkalinity, total; Alkalinity, total, standard error; Ammonium; Ammonium, standard error; Aragonite saturation state; Bicarbonate ion; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; EXP; Experiment; Experiment duration; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Nitrate and Nitrite; Nitrate and Nitrite, standard error; Parameter; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard error; Phosphate; Phosphate, standard error; Potentiometric; Potentiometric titration; Registration number of species; Salinity; Salinity, standard error; Sample ID; South Pacific; Species; Tasmania_Hobart; Temperature, water; Temperature, water, standard error; Treatment; Type; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 2052 data points
    Location Call Number Limitation Availability
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  • 2
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    PANGAEA
    In:  Supplement to: Cornwall, Christopher Edward; Boyd, Philip W; McGraw, Christina M; Hepburn, Christopher D; Pilditch, Conrad A; Morris, Jaz N; Smith, Abigail M; Hurd, Catriona L (2014): Diffusion Boundary Layers Ameliorate the Negative Effects of Ocean Acidification on the Temperate Coralline Macroalga Arthrocardia corymbosa. PLoS ONE, 9(5), e97235, https://doi.org/10.1371/journal.pone.0097235
    Publication Date: 2024-03-15
    Description: Anthropogenically-modulated reductions in pH, termed ocean acidification, could pose a major threat to the physiological performance, stocks, and biodiversity of calcifiers and may devalue their ecosystem services. Recent debate has focussed on the need to develop approaches to arrest the potential negative impacts of ocean acidification on ecosystems dominated by calcareous organisms. In this study, we demonstrate the role of a discrete (i.e. diffusion) boundary layer (DBL), formed at the surface of some calcifying species under slow flows, in buffering them from the corrosive effects of low pH seawater. The coralline macroalga Arthrocardia corymbosa was grown in a multifactorial experiment with two mean pH levels (8.05 'ambient' and 7.65 a worst case 'ocean acidification' scenario projected for 2100), each with two levels of seawater flow (fast and slow, i.e. DBL thin or thick). Coralline algae grown under slow flows with thick DBLs (i.e., unstirred with regular replenishment of seawater to their surface) maintained net growth and calcification at pH 7.65 whereas those in higher flows with thin DBLs had net dissolution. Growth under ambient seawater pH (8.05) was not significantly different in thin and thick DBL treatments. No other measured diagnostic (recruit sizes and numbers, photosynthetic metrics, %C, %N, %MgCO3) responded to the effects of reduced seawater pH. Thus, flow conditions that promote the formation of thick DBLs, may enhance the subsistence of calcifiers by creating localised hydrodynamic conditions where metabolic activity ameliorates the negative impacts of ocean acidification.
    Keywords: Alkalinity, total; Alkalinity, total, standard error; Aragonite saturation state; Arthrocardia corymbosa; Benthos; Bicarbonate ion; Bicarbonate ion, standard error; Biomass/Abundance/Elemental composition; Calcification/Dissolution; Calcification rate of calcium carbonate; Calcite; Calcite saturation state; Calculated; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbon, organic, total; Carbon/Nitrogen ratio; Carbonate ion; Carbonate ion, standard error; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard error; Chlorophyll a; Chlorophyll c; Chlorophyll d; Coast and continental shelf; Containers and aquaria (20-1000 L or 〈 1 m**2); Diffusive boundary layer; Diffusive boundary layer, standard error; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Identification; Karitane_South_Island; Laboratory experiment; Light capturing capacity; Light saturation point; Macroalgae; Maximal electron transport rate, relative; Maximum photochemical quantum yield of photosystem II; Nitrogen, organic; OA-ICC; Ocean Acidification International Coordination Centre; 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; pH; pH, standard error; Photoinhibition; Phycocyanin; Phycoerythrin; Plantae; Potentiometric; Potentiometric titration; Primary production/Photosynthesis; Proportion; Recruitment; Recruit size; Reproduction; Rhodophyta; Salinity; Single species; South Pacific; Species; Temperate; Temperature, water; Temperature, water, standard error; Treatment; δ13C; δ15N
    Type: Dataset
    Format: text/tab-separated-values, 3500 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2024-04-03
    Description: Ocean acidification and greenhouse warming will interactively influence competitive success of key phytoplankton groups such as diatoms, but how long-term responses to global change will affect community structure is unknown. We incubated a mixed natural diatom community from coastal New Zealand waters in a short-term (two-week) incubation experiment using a factorial matrix of warming and/or elevated pCO2 and measured effects on community structure. We then isolated the dominant diatoms in clonal cultures and conditioned them for 1 year under the same temperature and pCO2 conditions from which they were isolated, in order to allow for extended selection or acclimation by these abiotic environmental change factors in the absence of interspecific interactions. These conditioned isolates were then recombined into 'artificial' communities modelled after the original natural assemblage and allowed to compete under conditions identical to those in the short-term natural community experiment. In general, the resulting structure of both the unconditioned natural community and conditioned 'artificial' community experiments was similar, despite differences such as the loss of two species in the latter. pCO2 and temperature had both individual and interactive effects on community structure, but temperature was more influential, as warming significantly reduced species richness. In this case, our short-term manipulative experiment with a mixed natural assemblage spanning weeks served as a reasonable proxy to predict the effects of global change forcing on diatom community structure after the component species were conditioned in isolation over an extended timescale. Future studies will be required to assess whether or not this is also the case for other types of algal communities from other marine regimes.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calcite saturation state, standard deviation; 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; Cell density; Chaetoceros criophilus; Coast and continental shelf; Community composition and diversity; Coscinodiscus sp.; Coulometric titration; Cylindrotheca fusiformis; Entire community; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Growth rate, standard deviation; Incubation duration; Laboratory experiment; Navicula sp.; 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); Pelagos; pH; pH, standard deviation; Pseudonitzschia delicatissima; Salinity; Sample ID; South Pacific; Species; Spectrophotometric; Temperate; Temperature; Temperature, water; Thalassiosira sp.; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 10188 data points
    Location Call Number Limitation Availability
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