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  • AWIPEV; AWIPEV_based; C:N; Comment; Family; interactive effects; kelp; Koldewey; Mannitol; nutrients; Phlorotannins; Photometric (Folin-Ciocalteu); pigments; Replicates; Research station; RS; Salinity; Species; Spitsbergen, Svalbard; Temperature; Treatment: nutrients; Treatment: temperature  (2)
  • BIOACID; Biological Impacts of Ocean Acidification  (2)
  • Alkalinity, total; Alkalinity, total, standard deviation; Alloxanthin; Alloxanthin, standard deviation; Aragonite saturation state; Bicarbonate ion; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbon, organic, particulate; Carbon, organic, particulate, standard deviation; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chlorophyll a; Chlorophyll a, standard deviation; Chlorophyll c2; Chlorophyll c2, standard deviation; Chromista; Cobalt/Carbon ratio; Cobalt/Carbon ratio, standard deviation; Connectivity between photosystem II; Connectivity between photosystem II, standard deviation; Copper/Carbon ratio; Copper/Carbon ratio, standard deviation; Cryptophyta; Diadinoxanthin; Diadinoxanthin, standard deviation; Electron transport rate, absolute; Electron transport rate, absolute, standard deviation; Elemental analyzer, HEKAtechGmbH, Euro EA; Fluorometer, fast repetition rate; FRRF; Fucoxanthin; Fucoxanthin, standard deviation; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Functional absorption cross sections of photosystem II reaction centers; Functional absorption cross sections of photosystem II reaction centers, standard deviation; Functional photosystem II reaction centers; Functional photosystem II reaction centers, standard deviation; Geminigera cryophila; Growth/Morphology; Growth rate, standard deviation; Inductively coupled plasma mass spectrometer (ICP-MS), Attom, Nu Instruments; Inorganic toxins; Iron, cellular quota; Iron, cellular quota, standard deviation; Iron/Carbon ratio; Iron/Carbon ratio, standard deviation; Irradiance; Laboratory experiment; Laboratory strains; Light microscopy (Utermöhl 1958); Light saturation point; Light saturation point, standard deviation; Light use efficiency; Light use efficiency, standard deviation; Manganese/Carbon ratio; Manganese/Carbon ratio, standard deviation; Maximal electron transport rate; Maximal electron transport rate, standard deviation; Maximum photochemical quantum yield of photosystem II; Maximum photochemical quantum yield of photosystem II, recovery; Maximum photochemical quantum yield of photosystem II, recovery, standard deviation; Maximum photochemical quantum yield of photosystem II, standard deviation; Nitrogen, organic, particulate; Non photochemical quenching; Non photochemical quenching, standard deviation; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Ochrophyta; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Particulate organic carbon, production, standard deviation; Particulate organic nitrogen production, standard deviation; Pelagos; pH; pH, standard deviation; Phosphate; Phytoplankton; Phytoplankton growth rate; Potentiometric; Potentiometric titration; Primary production/Photosynthesis; Production of particulate organic carbon; Pseudo-nitzschia subcurvata; Reverse phase HPLC (High Performance Liquid Chromatography); Salinity; Silicate; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperature, water; Treatment: dissolved iron; Treatment: partial pressure of carbon dioxide; Type; Zinc/Carbon ratio; Zinc/Carbon ratio, standard deviation  (1)
Document type
Keywords
Publisher
Years
  • 1
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    Experiment: Ultraviolet radiation modulates the physiological responses of the calcified rhodophyte Corallina officinalis to elevated CO2 (2014)
    PANGAEA
    In:  Supplement to: Yildiz, Gamse; Hofmann, Laurie C; Bischof, Kai; Dere, Sükran (2013): Ultraviolet radiation modulates the physiological responses of the calcified rhodophyte Corallina officinalis to elevated CO2. Botanica Marina, 56(2), 161-168, https://doi.org/10.1515/bot-2012-0216
    Details
    Publication Date: 2023-02-24
    Description: Ocean acidification reduces the concentration of carbonate ions and increases those of bicarbonate ions in seawater compared with the present oceanic conditions. This altered composition of inorganic carbon species may, by interacting with ultraviolet radiation (UVR), affect the physiology of macroalgal species. However, very little is known about how calcareous algae respond to UVR and ocean acidification. Therefore, we conducted an experiment to determine the effects of UVR and ocean acidification on the calcified rhodophyte Corallina officinalis using CO2-enriched cultures with and without UVR exposure. Low pH increased the relative electron transport rates (rETR) but decreased the CaCO3 content and had a miniscule effect on growth. However, UVA (4.25 W m-2) and a moderate level of UVB (0.5 W m-2) increased the rETR and growth rates in C. officinalis, and there was a significant interactive effect of pH and UVR on UVR-absorbing compound concentrations. Thus, at low irradiance, pH and UVR interact in a way that affects the multiple physiological responses of C. officinalis differently. In particular, changes in the skeletal content induced by low pH may affect how C. officinalis absorbs and uses light. Therefore, the light quality used in ocean acidification experiments will affect the predictions of how calcified macroalgae will respond to elevated CO2.
    Keywords: BIOACID; Biological Impacts of Ocean Acidification
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Seagrass biofilm communities at a naturally CO2-rich vent at Papua New Guinea (2014)
    PANGAEA
    In:  Supplement to: Hassenrück, Christiane; Hofmann, Laurie C; Bischof, Kai; Ramette, Alban (2015): Seagrass biofilm communities at a naturally CO2-rich vent. Environmental Microbiology Reports, https://doi.org/10.1111/1758-2229.12282
    Details
    Publication Date: 2023-02-24
    Description: Seagrass meadows are a crucial component of tropical marine reef ecosystems. The seagrass plants are colonized by a multitude of epiphytic organisms that contribute to determining the ecological role of seagrasses. To better understand how environmental changes like ocean acidification might affect epiphytic assemblages, the microbial community composition of the epiphytic biofilm of Enhalus acroides was investigated at a natural CO2 vent in Papua New Guinea using molecular fingerprinting and next generation sequencing of 16S and 18S rRNA genes. Both bacterial and eukaryotic epiphytes formed distinct communities at the CO2-impacted site compared to the control site. This site-related CO2 effect was also visible in the succession pattern of microbial epiphytes. We further found an increased abundance of bacterial types associated with coral diseases at the CO2-impacted site (Fusobacteria, Thalassomonas) whereas eukaryotes such as certain crustose coralline algae commonly related to healthy reefs were less diverse. These trends in the epiphytic community of E. acroides suggest a potential role of seagrasses as vectors of coral pathogens and may support previous predictions of a decrease in reef health and prevalence of diseases under future ocean acidification scenarios.
    Keywords: BIOACID; Biological Impacts of Ocean Acidification
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Nutrient enrichment phlorotannins experiments conducted with field samples at AWIPEV station (2021)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Keywords: AWIPEV; AWIPEV_based; C:N; Comment; Family; interactive effects; kelp; Koldewey; Mannitol; nutrients; Phlorotannins; Photometric (Folin-Ciocalteu); pigments; Replicates; Research station; RS; Salinity; Species; Spitsbergen, Svalbard; Temperature; Treatment: nutrients; Treatment: temperature
    Type: Dataset
    Format: text/tab-separated-values, 648 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Hyposalinity phlorotannins experiments conducted with field samples at AWIPEV station (2021)
    PANGAEA
    Details
    Publication Date: 2024-01-26
    Keywords: AWIPEV; AWIPEV_based; C:N; Comment; Family; interactive effects; kelp; Koldewey; Mannitol; nutrients; Phlorotannins; Photometric (Folin-Ciocalteu); pigments; Replicates; Research station; RS; Salinity; Species; Spitsbergen, Svalbard; Temperature; Treatment: nutrients; Treatment: temperature
    Type: Dataset
    Format: text/tab-separated-values, 648 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Seawater carbonate chemistry and photophysiology, growth, carbon production, and cellular pigment and trace metal quotas of the Antarctic phytoplankton Geminigera cryophila and Pseudo‐nitzschia subcurvata (2022)
    PANGAEA
    Details
    Publication Date: 2024-05-22
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Alloxanthin; Alloxanthin, standard deviation; Aragonite saturation state; Bicarbonate ion; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbon, organic, particulate; Carbon, organic, particulate, standard deviation; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chlorophyll a; Chlorophyll a, standard deviation; Chlorophyll c2; Chlorophyll c2, standard deviation; Chromista; Cobalt/Carbon ratio; Cobalt/Carbon ratio, standard deviation; Connectivity between photosystem II; Connectivity between photosystem II, standard deviation; Copper/Carbon ratio; Copper/Carbon ratio, standard deviation; Cryptophyta; Diadinoxanthin; Diadinoxanthin, standard deviation; Electron transport rate, absolute; Electron transport rate, absolute, standard deviation; Elemental analyzer, HEKAtechGmbH, Euro EA; Fluorometer, fast repetition rate; FRRF; Fucoxanthin; Fucoxanthin, standard deviation; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Functional absorption cross sections of photosystem II reaction centers; Functional absorption cross sections of photosystem II reaction centers, standard deviation; Functional photosystem II reaction centers; Functional photosystem II reaction centers, standard deviation; Geminigera cryophila; Growth/Morphology; Growth rate, standard deviation; Inductively coupled plasma mass spectrometer (ICP-MS), Attom, Nu Instruments; Inorganic toxins; Iron, cellular quota; Iron, cellular quota, standard deviation; Iron/Carbon ratio; Iron/Carbon ratio, standard deviation; Irradiance; Laboratory experiment; Laboratory strains; Light microscopy (Utermöhl 1958); Light saturation point; Light saturation point, standard deviation; Light use efficiency; Light use efficiency, standard deviation; Manganese/Carbon ratio; Manganese/Carbon ratio, standard deviation; Maximal electron transport rate; Maximal electron transport rate, standard deviation; Maximum photochemical quantum yield of photosystem II; Maximum photochemical quantum yield of photosystem II, recovery; Maximum photochemical quantum yield of photosystem II, recovery, standard deviation; Maximum photochemical quantum yield of photosystem II, standard deviation; Nitrogen, organic, particulate; Non photochemical quenching; Non photochemical quenching, standard deviation; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Ochrophyta; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Particulate organic carbon, production, standard deviation; Particulate organic nitrogen production, standard deviation; Pelagos; pH; pH, standard deviation; Phosphate; Phytoplankton; Phytoplankton growth rate; Potentiometric; Potentiometric titration; Primary production/Photosynthesis; Production of particulate organic carbon; Pseudo-nitzschia subcurvata; Reverse phase HPLC (High Performance Liquid Chromatography); Salinity; Silicate; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperature, water; Treatment: dissolved iron; Treatment: partial pressure of carbon dioxide; Type; Zinc/Carbon ratio; Zinc/Carbon ratio, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 8948 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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