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  • PANGAEA  (27)
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  • 1
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    KOSMOS Bergen 2015 mesocosm study: C. harengus biomass (2022)
    PANGAEA
    Details
    Publication Date: 2023-11-02
    Description: To evaluate the influence of ocean acidification on predatory plankton, e.g. Hydrozoa and fish larvae as well as their interaction in complex natural communities, we deployed eight pelagic mesocosms for 53 days (Mai to July) in Raunefjord, Norway, and enclosed 60 m³ of local seawater containing a natural plankton community under post-bloom conditions. Four mesocosms were manipulated to simulate extreme pCO2 levels of 2069 µatm while the other four served as untreated controls. To investigate the interaction between Hydrozoa and fish larvae influenced by OA ee studied OA-induced changes at the top of the food web by following ≈2000 larvae of Atlantic herring (Clupea harengus) hatched inside each mesocosm during the first week of the experiment, and a Hydrozoa population that had already established inside the mesocosms. Organisms of both taxa inside and outside the mesocosms were measured over the course of the experiment in regular intervals. The data stems from 55µm and 500µm Apstein net hauls, subsequent microscopic analyses as well as carbon to nitrogen measurements. Under OA, we detected 20% higher abundance of hydromedusae staged jellyfish, but 25% lower biomass. At the same time, survival rates of Atlantic herring larvae were higher under OA (control pCO2: 0.1%, high pCO2: 1.7%) in the final phase of the study.
    Keywords: Abundance per volume; Climate change; Cluster of Excellence: The Future Ocean; Dry mass; Dry mass per individual; Event label; Fish; fish larvae; Food web; FutureOcean; Hydrozoa; Identification; KOSMOS_2015; KOSMOS_2015_Mesocosm-M1; KOSMOS_2015_Mesocosm-M2; KOSMOS_2015_Mesocosm-M3; KOSMOS_2015_Mesocosm-M4; KOSMOS_2015_Mesocosm-M5; KOSMOS_2015_Mesocosm-M6; KOSMOS_2015_Mesocosm-M7; KOSMOS_2015_Mesocosm-M8; KOSMOS Bergen; MESO; mesocosm; Mesocosm experiment; Mesocosm label; Ocean acidification; plankton; Treatment; Volume
    Type: Dataset
    Format: text/tab-separated-values, 304 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    KOSMOS Bergen 2015 mesocosm study: C. harengus survival (2022)
    PANGAEA
    Details
    Publication Date: 2023-11-02
    Description: To evaluate the influence of ocean acidification on predatory plankton, e.g. Hydrozoa and fish larvae as well as their interaction in complex natural communities, we deployed eight pelagic mesocosms for 53 days (Mai to July) in Raunefjord, Norway, and enclosed 60 m³ of local seawater containing a natural plankton community under post-bloom conditions. Four mesocosms were manipulated to simulate extreme pCO2 levels of 2069 µatm while the other four served as untreated controls. To investigate the interaction between Hydrozoa and fish larvae influenced by OA ee studied OA-induced changes at the top of the food web by following ≈2000 larvae of Atlantic herring (Clupea harengus) hatched inside each mesocosm during the first week of the experiment, and a Hydrozoa population that had already established inside the mesocosms. Organisms of both taxa inside and outside the mesocosms were measured over the course of the experiment in regular intervals. The data stems from 55µm and 500µm Apstein net hauls, subsequent microscopic analyses as well as carbon to nitrogen measurements. Under OA, we detected 20% higher abundance of hydromedusae staged jellyfish, but 25% lower biomass. At the same time, survival rates of Atlantic herring larvae were higher under OA (control pCO2: 0.1%, high pCO2: 1.7%) in the final phase of the study.
    Keywords: Climate change; Cluster of Excellence: The Future Ocean; Event label; fish larvae; Food web; Fraction; FutureOcean; Hydrozoa; KOSMOS_2015; KOSMOS_2015_Mesocosm-M1; KOSMOS_2015_Mesocosm-M2; KOSMOS_2015_Mesocosm-M3; KOSMOS_2015_Mesocosm-M4; KOSMOS_2015_Mesocosm-M5; KOSMOS_2015_Mesocosm-M6; KOSMOS_2015_Mesocosm-M7; KOSMOS_2015_Mesocosm-M8; KOSMOS Bergen; MESO; mesocosm; Mesocosm experiment; Mesocosm label; Number of individuals; Ocean acidification; plankton; Status; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 200 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    KOSMOS Bergen 2015 mesocosm study: C. harengus condition (2022)
    PANGAEA
    Details
    Publication Date: 2023-11-02
    Description: To evaluate the influence of ocean acidification on predatory plankton, e.g. Hydrozoa and fish larvae as well as their interaction in complex natural communities, we deployed eight pelagic mesocosms for 53 days (Mai to July) in Raunefjord, Norway, and enclosed 60 m³ of local seawater containing a natural plankton community under post-bloom conditions. Four mesocosms were manipulated to simulate extreme pCO2 levels of 2069 µatm while the other four served as untreated controls. To investigate the interaction between Hydrozoa and fish larvae influenced by OA ee studied OA-induced changes at the top of the food web by following ≈2000 larvae of Atlantic herring (Clupea harengus) hatched inside each mesocosm during the first week of the experiment, and a Hydrozoa population that had already established inside the mesocosms. Organisms of both taxa inside and outside the mesocosms were measured over the course of the experiment in regular intervals. The data stems from 55µm and 500µm Apstein net hauls, subsequent microscopic analyses as well as carbon to nitrogen measurements. Under OA, we detected 20% higher abundance of hydromedusae staged jellyfish, but 25% lower biomass. At the same time, survival rates of Atlantic herring larvae were higher under OA (control pCO2: 0.1%, high pCO2: 1.7%) in the final phase of the study.
    Keywords: Climate change; Cluster of Excellence: The Future Ocean; Day of experiment; Event label; fish larvae; Food web; FutureOcean; Hydrozoa; Individual dry mass; Individuals; KOSMOS_2015; KOSMOS_2015_Mesocosm-M1; KOSMOS_2015_Mesocosm-M2; KOSMOS_2015_Mesocosm-M3; KOSMOS_2015_Mesocosm-M4; KOSMOS_2015_Mesocosm-M5; KOSMOS_2015_Mesocosm-M6; KOSMOS_2015_Mesocosm-M7; KOSMOS_2015_Mesocosm-M8; KOSMOS Bergen; Length, standard; MESO; mesocosm; Mesocosm experiment; Mesocosm label; Method comment; Ocean acidification; Origin; plankton; Ratio; Sample code/label; Species; Status; Time in days; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 5991 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    KOSMOS mesocosm experiment Gran Canaria 2019 on testing the effect of nutrient composition (Si:N) during artificial upwelling: mesozooplankton carbon and nitrogen content and stable isotope δ15N (2023)
    PANGAEA
    Details
    Publication Date: 2023-12-28
    Description: Mesozooplankton (mesoZP) per capita mass, elemental composition and stable N isotopes during the mesocosm experiment in the Canary Islands in autumn 2019. Depth-integrated (0-2.5m) water samples were taken over the course of 33 days. Metazoan zooplankton were split into three size fractions (55-200, 200-500 and 〉500 µm), picked into tin cups in groups and C, N and δ15N measured in an element analyser coupled to a mass spectrometer. Particulate organic matter (〉0.7µm) was also measured for a comparison of C/N between the bottom of the food web and mesoZP grazers. The upwelling treatment started on day 6. Methodological details in Goldenberg et al. (doi:10.3389/fmars.2022.1015188) and Goldenberg et al. (under review).
    Keywords: AQUACOSM; artificial upwelling; Calculated; Canarias Sea; Carbon/Nitrogen ratio; carbon dioxide removal; CDRmare; DAM CDRmare - Test-ArtUp: Road testing ocean artificial upwelling; DATE/TIME; Day of experiment; Depth, water, experiment, bottom/maximum; Depth, water, experiment, top/minimum; diatoms; ecological stoichiometry; Event label; Field experiment; Functional group; GC2019; KOSMOS; KOSMOS_2019; KOSMOS_2019_Mesocosm-M1; KOSMOS_2019_Mesocosm-M2; KOSMOS_2019_Mesocosm-M3; KOSMOS_2019_Mesocosm-M4; KOSMOS_2019_Mesocosm-M5; KOSMOS_2019_Mesocosm-M6; KOSMOS_2019_Mesocosm-M7; KOSMOS_2019_Mesocosm-M8; KOSMOS Gran Canaria; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Mesozooplankton; Mesozooplankton, biomass as carbon; Mesozooplankton, biomass as carbon per individual; Mesozooplankton, biomass as nitrogen; Mesozooplankton, biomass as nitrogen per individual; Mesozooplankton, carbon/nitrogen ratio; negative emission technology; Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean; Ocean Artificial Upwelling; Ocean-artUp; ocean fertilization; Phase description; plankton food web; Research Mission of the German Marine Research Alliance (DAM): Marine carbon sinks in decarbonisation pathways; Size fraction; Stable isotope; System state description; Taxon/taxa; Test-ArtUp; Treatment; trophic transfer; Type of study; δ15N, mesozooplankton
    Type: Dataset
    Format: text/tab-separated-values, 11197 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    KOSMOS mesocosm experiment Gran Canaria 2019 on testing the effect of nutrient composition (Si:N) during artificial upwelling: mesozooplankton trophic level and fish biomass and feeding (2023)
    PANGAEA
    Details
    Publication Date: 2023-12-27
    Description: Mesozooplankton trophic position (via copepod δ15N) to approximate food web length as well as fish production (via biomass increase) and feeding rate (via stomach content) during the mesocosm experiment in the Canary Islands in autumn 2019. Copepods 〉200µm were sampled depth-integrated (0-2.5m) on day 13. At this time, copepods represented the top of the food web as fish were not yet present. Individuals were picked in groups into tin capsules and δ15N measured in a mass spectrometer. Particulate organic matter(〉0.7µm) δ15N was also measured to calculate an autotroph baseline. The difference between copepod and autotroph δ15N was used as trophic level proxy. A small pelagic fish (silverside, Atherina presbyter) was introduced to the mesocosms on day 15. On day 18, for a subset of fish, stomachs content was assessed to estimate feeding success. On day 21, all fish were sampled for biomass and abundance. The upwelling treatment started on day 6. Methodological details in Goldenberg et al. (doi:10.3389/fmars.2022.1015188) and Goldenberg et al. (under review).
    Keywords: AQUACOSM; artificial upwelling; Atherina presbyter, juvenile; Atherina presbyter, juvenile, standard length; Atherina presbyter, juvenile, wet mass; Atherina presbyter, larvae; Atherina presbyter, larvae, standard length; Atherina presbyter, larvae, wet mass; Calculated; Canarias Sea; carbon dioxide removal; CDRmare; Copepoda; Copepoda, biomass as carbon, per fish stomach; Copepoda, biomass as nitrogen; Copepoda, δ15N; DAM CDRmare - Test-ArtUp: Road testing ocean artificial upwelling; DATE/TIME; Day of experiment; Depth, water, experiment, bottom/maximum; Depth, water, experiment, top/minimum; diatoms; Event label; Field experiment; food production; GC2019; KOSMOS; KOSMOS_2019; KOSMOS_2019_Mesocosm-M1; KOSMOS_2019_Mesocosm-M2; KOSMOS_2019_Mesocosm-M3; KOSMOS_2019_Mesocosm-M4; KOSMOS_2019_Mesocosm-M5; KOSMOS_2019_Mesocosm-M6; KOSMOS_2019_Mesocosm-M7; KOSMOS_2019_Mesocosm-M8; KOSMOS Gran Canaria; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; negative emission technology; Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean; Number of copepoda, per fish stomach; Number of samples; Ocean Artificial Upwelling; Ocean-artUp; ocean fertilization; plankton food web; Research Mission of the German Marine Research Alliance (DAM): Marine carbon sinks in decarbonisation pathways; Sample type; small pelagic fish; Test-ArtUp; Treatment; trophic transfer; Type of study; δ15N; δ15N, particulate organic matter
    Type: Dataset
    Format: text/tab-separated-values, 328 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    KOSMOS mesocosm experiment Gran Canaria 2019 on testing the effect of nutrient composition (Si:N) during artificial upwelling: microzooplankton, mesozooplankton and toxins (2023)
    PANGAEA
    Details
    Publication Date: 2023-12-27
    Description: Microzooplankton (microZP, protists) and mesozooplankton (mesoZP, metazoans) abundances and biomass as well as presence of domoic acid (DA, phycotoxin) during the mesocosm experiment in the Canary Islands in autumn 2019. Depth-integrated (0-2.5m) water samples were taken over the course of 33 days, in 2-day intervals for microZP and mesoZP and 4-day intervals for DA. MicroZP was assessed by Utermöhl light microscopy and its biomass estimated using biovolume to carbon conversion factors from the literature. MesoZP samples were split into three size fractions (55-200, 200-500 and 〉500 µm), preserved with 70% ethanol and assessed under a stereo microscope. For biomass, mesoZP were measured in an element analyser. MesoZP data is provided for copepods only (dominant group) and all metazoan zooplankton combined (mainly copepods and appendicularians). For DA, particulate matter was filtered (〉0.7µm) and analysed via liquid chromatography and tandem mass spectrometry. The upwelling treatment started on day 6. Methodological details in Goldenberg et al. (doi:10.3389/fmars.2022.1015188) and Goldenberg et al. (under review).
    Keywords: AQUACOSM; artificial upwelling; Canarias Sea; carbon dioxide removal; CDRmare; Ciliates, heterotrophic; Ciliates, heterotrophic, biomass as carbon; Copepoda; Copepoda, biomass as carbon; Copepoda, nauplii; DAM CDRmare - Test-ArtUp: Road testing ocean artificial upwelling; DATE/TIME; Day of experiment; Depth, water, experiment, bottom/maximum; Depth, water, experiment, top/minimum; diatoms; Dinoflagellates; Dinoflagellates, biomass as carbon; Domoic acid; Domoic acid per unit mass particulate organic carbon; Event label; Field experiment; GC2019; KOSMOS; KOSMOS_2019; KOSMOS_2019_Mesocosm-M1; KOSMOS_2019_Mesocosm-M2; KOSMOS_2019_Mesocosm-M3; KOSMOS_2019_Mesocosm-M4; KOSMOS_2019_Mesocosm-M5; KOSMOS_2019_Mesocosm-M6; KOSMOS_2019_Mesocosm-M7; KOSMOS_2019_Mesocosm-M8; KOSMOS Gran Canaria; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Mesozooplankton; Mesozooplankton, biomass as carbon; negative emission technology; Network of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean; Ocean Artificial Upwelling; Ocean-artUp; ocean fertilization; Phase description; plankton food web; Protista, heterotrophic; Protista, heterotrophic, biomass as carbon; Research Mission of the German Marine Research Alliance (DAM): Marine carbon sinks in decarbonisation pathways; Size fraction 〉 500 µm; Size fraction 〉 55 µm; Size fraction 200-500 µm; Size fraction 55-200 µm; Test-ArtUp; Treatment; trophic transfer; Type of study
    Type: Dataset
    Format: text/tab-separated-values, 4332 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Responses of a subtropical zooplankton community to ocean acidification during oligotrophic conditions and simulated upwelling (KOSMOS 2014) (2018)
    PANGAEA
    In:  Supplement to: Algueró-Muñiz, Maria; Horn, Henriette G; Alvarez-Fernandez, Santiago; Spisla, Carsten; Aberle, Nicole; Bach, Lennart Thomas; Guan, WanChun; Achterberg, Eric Pieter; Riebesell, Ulf; Boersma, Maarten (2019): Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling. Frontiers in Marine Science, 6, https://doi.org/10.3389/fmars.2019.00061
    Details
    Publication Date: 2024-03-06
    Description: Ocean acidification (OA) is affecting marine ecosystems through changes in carbonate chemistry that may influence consumers of phytoplankton, often via trophic pathways. Using a mesocosm approach, we investigated OA effects on a subtropical zooplankton community during oligotrophic, bloom, and post-bloom phases under a range of different pCO2 levels (from ∼400 to ∼1480 μatm).
    Keywords: BIOACID; Biological Impacts of Ocean Acidification
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    KOSMOS 2016 mesocosm study: nutrients (2019)
    PANGAEA
    Details
    Publication Date: 2024-03-06
    Keywords: Ammonium; BIOACID; Biogenic silica; Biological Impacts of Ocean Acidification; Chlorophyll a; Day of experiment; Event label; KOSMOS_2016; KOSMOS_2016_Mesocosm-M2; KOSMOS_2016_Mesocosm-M3; KOSMOS_2016_Mesocosm-M4; KOSMOS_2016_Mesocosm-M5; KOSMOS_2016_Mesocosm-M6; KOSMOS_2016_Mesocosm-M7; KOSMOS_2016_Mesocosm-M8; KOSMOS Gran Canaria; MESO; Mesocosm experiment; Mesocosm label; Nitrogen oxide; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Phase; Phosphate; Shannon Diversity Index; Silicate
    Type: Dataset
    Format: text/tab-separated-values, 1608 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    Oikopleura dioica, phytoplankton, and carbon export during the KOSMOS Bergen mesocosm experiment on ocean acidification (Raunefjord, Norway, 2015) (2023)
    PANGAEA
    Details
    Publication Date: 2024-03-06
    Description: This dataset is from an experiment with large-volume in situ mesocosms (~55-60 m3 and 21 m depth) in Raunefjord (Bergen), Norway in 2015. In this pelagic in situ mesocosm experiment, we assessed how ocean acidification (particularly episodic extreme events) affect natural plankton communities. A particular focus was the response of the appendicularian Oikopleura dioica, and its influence on vertical carbon fluxes. Therefore, we sampled ecological and biogeochemical key parameters for 49 days in regular intervals.
    Keywords: Appendicularia; Area/locality; Biological pump; Carbon, organic, particulate, flux; Carbon, organic, particulate, suspended; carbon export; Counting; DATE/TIME; Day of experiment; Elemental analyser; Event label; Field experiment; Flow cytometry Accuri C6; KOSMOS_2015; KOSMOS_2015_Mesocosm-M1; KOSMOS_2015_Mesocosm-M2; KOSMOS_2015_Mesocosm-M3; KOSMOS_2015_Mesocosm-M4; KOSMOS_2015_Mesocosm-M5; KOSMOS_2015_Mesocosm-M6; KOSMOS_2015_Mesocosm-M7; KOSMOS_2015_Mesocosm-M8; KOSMOS Bergen; larvacea; MESO; mesocosm experiment; Mesocosm experiment; Mesocosm label; Microphytoplankton, biomass as carbon; Nanophytoplankton, biomass as carbon; Ocean acidification; Oikopleura dioica; Oikopleura dioica, length; Picophytoplankton, biomass as carbon; POC flux; Treatment: partial pressure of carbon dioxide; Type of study; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 2205 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 10
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    KOSMOS Bergen 2015 mesocosm study: plankton abundances (2022)
    PANGAEA
    Details
    Publication Date: 2024-03-06
    Description: To evaluate the influence of episodic extreme ocean acidification events in coastal regions, we deployed eight pelagic mesocosms for 53 days (Mai to July) in Raunefjord, Norway, and enclosed 60 m³ of local seawater containing a natural plankton community under post-bloom conditions. Four mesocosms were manipulated to simulate extreme pCO2 levels of 2069 µatm while the other four served as untreated controls. To monitor the effects of extreme pCO2 conditions, a variety of planktonic organisms inside and outside the mesocosms were measured over the course of the experiment in regular intervals. The data stems from 55µm and 500µm Apstein net hauls and subsequent microscopic analyses.
    Keywords: Acartia spp., adult; Acartia spp., copepodites; Aglantha digitale; Bivalvia; Bryozoa; Calanus spp., adult; Calanus spp., copepodites; Centropages spp., adult; Centropages spp., copepodites; Chaetognatha; Chiridius spp.; Chlorophyll a; Cirripedia, larvae; Cladocera; Climate change; Cluster of Excellence: The Future Ocean; Clytia sp.; Copepoda, nauplii; CTD; DATE/TIME; Day of experiment; Echinodermata; Event label; Fish eggs; fish larvae; Fish larvae; Fjord; FutureOcean; Gastropoda; Hydrozoa; Hydrozoa indeterminata; KOSMOS_2015; KOSMOS_2015_Mesocosm-M1; KOSMOS_2015_Mesocosm-M2; KOSMOS_2015_Mesocosm-M3; KOSMOS_2015_Mesocosm-M4; KOSMOS_2015_Mesocosm-M5; KOSMOS_2015_Mesocosm-M6; KOSMOS_2015_Mesocosm-M7; KOSMOS_2015_Mesocosm-M8; KOSMOS_2015_Mesocosm-M9; KOSMOS Bergen; Melicertum sp.; MESO; mesocosm; Mesocosm experiment; Mesocosm label; mesoplankton; Metridia spp.; Microscopy; Microsetella spp.; Obelia geniculata; Ocean acidification; Oikopleura dioica; Oithona spp., adult; Oithona spp., copepodites; Oncaea spp., adult; Oncaea spp., copepodites; Paracalanus spp., adult; Paracalanus spp., copepodites; plankton; Polychaeta; Rathkea octopunctata; Salinity; Sarsia tubulosa; Temora spp., adult; Temora spp., copepodites; Temperature, water; Tisbe spp.; Tomopteris sp.; Treatment: partial pressure of carbon dioxide; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 11340 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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