Environmental data and microorganism composition from the HAVOC sea ice ridge study during the MOSAiC expedition (PS122) in the Central Arctic Ocean 2019-2020
type: Dataset
creator: Oliver Müller
creator: Jessie Gardner
  type: Person
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creator: Philipp Assmy
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creator: Rolf Gradinger
creator: Gunnar Bratbak
creator: Clara Jule Marie Hoppe
creator: Benjamin Allen Lange
creator: Morven Muilwijk
creator: Dmitry V Divine
creator: Nicole Aberle
creator: Jeffrey W Krause
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creator: Eva Leu
creator: Tatiana M Tsagaraki
creator: Aud Larsen
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creator: Laura Heitman
  type: Person
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creator: Anders Torstensson
creator: Allison A Fong
creator: Thomas Mock
creator: William Boulton
creator: Jozef M Wiktor
creator: Agnieszka Tatarek
creator: Sinhué Torres-Valdés
creator: Benoit Lebreton
creator: Gaël Guillou
  type: Person
  family name: Guillou
  given name: Gaël
creator: Mats A Granskog
publisher: PANGAEA
  type: Organization
  disambiguating description: Data Publisher for Earth & Environmental Science
included in data catalog: PANGAEA
  type: DataCatalog
  disambiguating description: Data Publisher for Earth & Environmental Science
date published: 2025-09-10
additional type: dataset
description: This dataset gives an overview of environmental data including temperature, salinity, brine volume fraction (for sea ice only), dissolved nutrients, particulate organic carbon and nitrogen, particulate elemental concentration, as well as chlorophyll a concentrations, bacterial production and the abundance of microorganisms either enumerated using light microscopy (organisms between 20 µm – 300 µm) or flow cytometry (FCM for organisms smaller than 20 µm) of HAVOC sea ice ridge specific samples, taken during the Multidisciplinary drifting observatory for the study of Arctic Climate (MOSAiC) during leg 2, 3 and 4 (December 2019 – August 2020). Additional expedition and sampling details can be found in the ECO-overview paper (Fong et al., 2024). We thank all persons involved in the expedition of the Research Vessel Polarstern during MOSAiC in 2019-2020 (AWI_PS122_00) as listed in Nixdorf et al. (2021). […]
abstract: This dataset gives an overview of environmental data including temperature, salinity, brine volume fraction (for sea ice only), dissolved nutrients, particulate organic carbon and nitrogen, particulate elemental concentration, as well as chlorophyll a concentrations, bacterial production and the abundance of microorganisms either enumerated using light microscopy (organisms between 20 µm – 300 µm) or flow cytometry (FCM for organisms smaller than 20 µm) of HAVOC sea ice ridge specific samples, taken during the Multidisciplinary drifting observatory for the study of Arctic Climate (MOSAiC) during leg 2, 3 and 4 (December 2019 – August 2020). Additional expedition and sampling details can be found in the ECO-overview paper (Fong et al., 2024). We thank all persons involved in the expedition of the Research Vessel Polarstern during MOSAiC in 2019-2020 (AWI_PS122_00) as listed in Nixdorf et al. (2021). The yearlong MOSAiC ice drift (October 2019 to September 2020), with the research vessel Polarstern serving as the base, started in the eastern Eurasian Basin and crossed the Amundsen and Nansen basins towards the Fram Strait (Fong et al., 2024). One dedicated research project (Ridges - Safe HAVens for ice-associated flora and fauna in a seasonally ice-covered Arctic Ocean (HAVOC) (Granskog and Müller, 2024) performed detailed and interdisciplinary observations of ridges during MOSAiC. During the drift, three different ridges were sampled at different times of the year. The changes between ridges were necessary, as logistical challenges and ice dynamics prevented the sampling of the same ridge throughout the entire period (see below), highlighting the difficulties associated with studying ridges. The first ridge (R1) was investigated in winter, the second ridge (R2) was investigated in spring, and the third ridge (R3) was investigated in summer. Based on their macrostructural physical properties, the three ridges were similar in characteristics. They formed during the MOS…
citation: Equations for Determining the Gas and Brine Volumes in Sea-Ice Samples
citation: Overview of the MOSAiC expedition: Ecosystem
citation: A peek beneath the surface of Arctic sea ice
citation: Protocols for the Joint Global Ocean Flux Study (JGOFS) Core Measurements
citation: Response of marine viral populations to a nutrient induced phytoplankton bloom at different pCO2 levels
citation: The brine and gas content of sea ice with attention to low salinities and high temperatures
  type: CreativeWork
  type: Report
  creator: M Leppäranta
    type: Person
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    given name: M
  creator: T Manninen
    type: Person
    family name: Manninen
    given name: T
  date published: 1988
  is part of: Finnish Institute of Marine Research Internal Report (Vol. 2). Helsinki
  additional type: report
citation: MOSAiC Extended Acknowledgement
citation: Protein content and protein synthesis rates of planktonic marine bacteria
citation: Heavy silicon isotopic composition of silicic acid and biogenic silica in Arctic waters over the Beaufort shelf and the Canada Basin
spatial coverage: Place
  geo: GeoShape
    box: 79.7912909 -1.7608771 87.4199366 112.755364
    elevation: -4425.5m/-818.3m
temporal coverage: 2020-01-10T00:00:00/2020-07-24T00:00:00
funding: Multidisciplinary drifting Observatory for the Study of Arctic Climate
  type: MonetaryGrant
  funder: Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
funding: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
  type: MonetaryGrant
  funder: Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
funding: MonetaryGrant
  funder: Swedish Polar Research Secretariat
funding: How warming of the Central Arctic Ocean changes the metabolic functions of sympagic and pelagic microbiomes, with emphasis on carbon and nitrogen cycling
  type: MonetaryGrant
  funder: Swedish Research Council
funding: Uncovering the seasonality of sympagic and pelagic microbiomes and their metabolic functions in the Central Arctic Ocean with emphasis on carbon and nitrogen cycling
  type: MonetaryGrant
  funder: Swedish Research Council
funding: The Nansen Legacy
  type: MonetaryGrant
  funder: The Research Council of Norway
funding: Ridges - Safe HAVens for ice-associated Flora and Fauna in a Seasonally ice-covered Arctic OCean
  type: MonetaryGrant
  funder: The Research Council of Norway
funding: Coordinated Arctic Acoustic Thermoetry Experiment
  type: MonetaryGrant
  funder: The Research Council of Norway
funding: air-snow-ice-ocean INTERactions transforming Atlantic Arctic Climate (INTERAAC)
  type: MonetaryGrant
  funder: The Research Council of Norway
funding: Centre for ice, Cryosphere, Carbon and Climate (iC3)
  type: MonetaryGrant
  funder: The Research Council of Norway
size: QuantitativeValue
  value: 2932.0
  unit text: data points
variable measured: Event label
variable measured: Cruise/expedition
variable measured: Activity description
  type: PropertyValue
  description: MOSAiC week
  subject of: DefinedTermSet
    has defined term: Activity
variable measured: DATE/TIME
  type: PropertyValue
  subject of: DefinedTermSet
    has defined term: Time
variable measured: LATITUDE
variable measured: LONGITUDE
variable measured: Device type
variable measured: Environment
  type: PropertyValue
  description: biome
variable measured: Environment
  type: PropertyValue
  description: feature
variable measured: Environment
  type: PropertyValue
  description: material
variable measured: Sample comment
variable measured: Sample code/label
variable measured: Sample ID
variable measured: Core section label
keywords: Arctic; bacterial production; BSi; Chl-a; flow cytometry; HAVOC; MOSAiC20192020; MOSAiC_ECO; nutrients; POC; protists; Sea-ice ridges; XRF
license: https://creativecommons.org/licenses/by/4.0/
conditions of access: unrestricted
is accessible for free: true
language: en

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Sinhué Torres-Valdés
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Benoit Lebreton
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Equations for Determining the Gas and Brine Volumes in Sea-Ice Samples
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Overview of the MOSAiC expedition: Ecosystem
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date published: 2024
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A peek beneath the surface of Arctic sea ice
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date published: 2024
pagination: 38-39
is part of: EU Research
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Protocols for the Joint Global Ocean Flux Study (JGOFS) Core Measurements
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Response of marine viral populations to a nutrient induced phytoplankton bloom at different pCO2 levels
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date published: 2008
pagination: 523-533
is part of: Biogeosciences
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MOSAiC Extended Acknowledgement
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date published: 2021
source organization: Zenodo
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Anne Morgenstern
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Christian Haas
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Torsten Kanzow
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Antje Boetius
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Protein content and protein synthesis rates of planktonic marine bacteria
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date published: 1989
pagination: 201-213
is part of: Marine Ecology Progress Series
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Heavy silicon isotopic composition of silicic acid and biogenic silica in Arctic waters over the Beaufort shelf and the Canada Basin
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Bruno Lansard
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Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
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alternate name: AWI

Swedish Polar Research Secretariat
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Swedish Research Council
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The Research Council of Norway
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Activity
type: DefinedTerm

Time
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alternate name: T

depth
type: DefinedTerm

ice
type: DefinedTerm

Length
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alternate name: L

water
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Temperature
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alternate name: Θ

Waterproof thermometer
type: DefinedTerm

salinity
type: DefinedTerm

YSI Model 30/30M Salinity, Conductivity and Temperature System
type: DefinedTerm

Volume
type: DefinedTerm

brine
type: DefinedTerm

Dimensionless Ratio
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alternate name: ψ

chlorophyll a
type: DefinedTerm

Density
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pheophytin
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carbon
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liquid scintillation counters
type: DefinedTerm

nitrate
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nitrite
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silicic acid
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phosphate
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ammonium
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biogenic silica
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oxygen
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silicon
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manganese
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calcium
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nitrogen
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optical microscopes
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dinoflagellates
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Flagellates
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red
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small
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large
type: DefinedTerm

orange
type: DefinedTerm

Musheng Lan
type: Person
family name: Lan
given name: Musheng

Brice Loose
type: Person
family name: Loose
given name: Brice

Wieslaw Maslowski
type: Person
family name: Maslowski
given name: Wieslaw

Camille Mavis
type: Person
family name: Mavis
given name: Camille

Katja Metfies
type: Person
family name: Metfies
given name: Katja

Daiki Nomura
type: Person
family name: Nomura
given name: Daiki

Ellen Oldenburg
type: Person
family name: Oldenburg
given name: Ellen

Lasse Mørk Olsen
type: Person
family name: Olsen
given name: Lasse Mørk

Donald K Perovich
type: Person
family name: Perovich
given name: Donald K

Ovidiu Popa
type: Person
family name: Popa
given name: Ovidiu

Serdar Sakinan
type: Person
family name: Sakinan
given name: Serdar

Pauline Snoeijs-Leijonmalm
type: Person
family name: Snoeijs-Leijonmalm
given name: Pauline

Jacqueline Stefels
type: Person
family name: Stefels
given name: Jacqueline

Anders Svenson
type: Person
family name: Svenson
given name: Anders

Martina Vortkamp
type: Person
family name: Vortkamp
given name: Martina

Alison L Webb
type: Person
family name: Webb
given name: Alison L

Yanpei Zhuang
type: Person
family name: Zhuang
given name: Yanpei

Elementa - Science of the Anthropocene
type: Periodical
type: PublicationVolume
volume number: 12(1)

Distance description
type: PropertyValue
description: from ice surface in cm (approximate)

DEPTH, ice/snow
type: PropertyValue
unit text: m
description: Depth bottom of sampled ice layer
subject of: DefinedTermSet
  has defined term: depth
  has defined term: ice
  has defined term: snow
  has defined term: Length

DEPTH, water
type: PropertyValue
unit text: m
description: seawater
subject of: DefinedTermSet
  has defined term: depth
  has defined term: water
  has defined term: Length

Temperature, ice/snow
type: PropertyValue
unit text: °C
measurement technique: Digital thermometer, Testo, 720
subject of: DefinedTermSet
  has defined term: Temperature
  has defined term: ice
  has defined term: snow
  has defined term: Waterproof thermometer

Salinity
type: PropertyValue
measurement technique: YSI 30 salinty/conductivity/temperature meter
subject of: DefinedTermSet
  has defined term: salinity
  has defined term: YSI Model 30/30M Salinity, Conductivity and Temperature System

Volume, brine
type: PropertyValue
unit text: %
measurement technique: after Cox & Weeks (1983)
subject of: DefinedTermSet
  has defined term: Volume
  has defined term: brine
  has defined term: Dimensionless Ratio

Chlorophyll a
type: PropertyValue
unit text: µg/l
measurement technique: Fluorometer, Turner Designs, 10-AU; According to Knap et al. (1996)
subject of: DefinedTermSet
  has defined term: chlorophyll a
  has defined term: Density

Chlorophyll a, standard deviation
type: PropertyValue
unit text: ±
measurement technique: Fluorometer, Turner Designs, 10-AU; According to Knap et al. (1996)
subject of: DefinedTermSet
  has defined term: chlorophyll a
  has defined term: standard deviation
    type: DefinedTerm
    alternate name: std dev

Pheophytin
type: PropertyValue
unit text: µg/l
measurement technique: Fluorometer, Turner Designs, 10-AU; According to Knap et al. (1996)
subject of: DefinedTermSet
  has defined term: pheophytin
  has defined term: Density

Pheophytin, standard deviation
type: PropertyValue
unit text: ±
measurement technique: Fluorometer, Turner Designs, 10-AU; According to Knap et al. (1996)
subject of: DefinedTermSet
  has defined term: pheophytin
  has defined term: standard deviation
    type: DefinedTerm
    alternate name: std dev

Bacterial production as carbon
type: PropertyValue
unit text: µg/l/day
measurement technique: Liquid scintillation counter (Tri-Carb 2800TR, Perkin-Elmer)
subject of: DefinedTermSet
  has defined term: carbon
  has defined term: liquid scintillation counters
  has defined term: Optical tools & radiometric sensors

Bacterial production as carbon, standard deviation
type: PropertyValue
unit text: ±
measurement technique: Liquid scintillation counter (Tri-Carb 2800TR, Perkin-Elmer)
subject of: DefinedTermSet
  has defined term: carbon
  has defined term: standard deviation
    type: DefinedTerm
    alternate name: std dev
  has defined term: liquid scintillation counters
  has defined term: Optical tools & radiometric sensors

Nitrate and Nitrite
type: PropertyValue
unit text: µmol/l
measurement technique: Continuous flow analyser, Seal, AA3
subject of: DefinedTermSet
  has defined term: nitrate
  has defined term: nitrite
  has defined term: Molar Concentration

Silicic acid
type: PropertyValue
unit text: µmol/l
measurement technique: Continuous flow analyser, Seal, AA3
subject of: DefinedTermSet
  has defined term: silicic acid
  has defined term: Molar Concentration

Phosphate
type: PropertyValue
unit text: µmol/l
measurement technique: Continuous flow analyser, Seal, AA3
subject of: DefinedTermSet
  has defined term: phosphate
  has defined term: Molar Concentration

Ammonium
type: PropertyValue
unit text: µmol/l
measurement technique: Continuous flow analyser, Seal, AA3
subject of: DefinedTermSet
  has defined term: ammonium
  has defined term: Molar Concentration

Biogenic silica
type: PropertyValue
unit text: nmol/l
measurement technique: after Varela et al. (2016)
subject of: DefinedTermSet
  has defined term: biogenic silica
  has defined term: Molar Concentration

Biogenic silica, standard deviation
type: PropertyValue
unit text: ±
measurement technique: after Varela et al. (2016)
subject of: DefinedTermSet
  has defined term: biogenic silica
  has defined term: standard deviation
    type: DefinedTerm
    alternate name: std dev

Lithogenic silica
type: PropertyValue
unit text: nmol/l
measurement technique: after Varela et al. (2016)
subject of: DefinedTermSet
  has defined term: Molar Concentration

Oxygen, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: oxygen
  has defined term: particulate
  has defined term: Molar Concentration

Silicon, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: silicon
  has defined term: particulate
  has defined term: Molar Concentration

Sodium, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: sodium
  has defined term: particulate
  has defined term: Molar Concentration

Magnesium, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: magnesium
  has defined term: particulate
  has defined term: Molar Concentration

Chlorine, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: chlorine
    type: DefinedTerm
    alternate name: Cl
  has defined term: particulate
  has defined term: Molar Concentration

Potassium, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: potassium
    type: DefinedTerm
    alternate name: K
  has defined term: particulate
  has defined term: Molar Concentration

Phosphorus, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: phosphorus
  has defined term: particulate
  has defined term: Molar Concentration

Sulfur, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: sulfur
  has defined term: particulate
  has defined term: Molar Concentration

Manganese, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: manganese
  has defined term: particulate
  has defined term: Molar Concentration

Calcium, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: calcium
  has defined term: particulate
  has defined term: Molar Concentration

Iron, particulate
type: PropertyValue
unit text: µmol/l
measurement technique: Wavelength dispersive X-Ray fluorescence spectrometer (WDXRF), Bruker, AXE S4 pioneer
subject of: DefinedTermSet
  has defined term: particulate
  has defined term: Molar Concentration

Carbon, organic, particulate
type: PropertyValue
unit text: µg/l
description: µg C L-1
subject of: DefinedTermSet
  has defined term: carbon
  has defined term: organic
  has defined term: particulate
  has defined term: Density

Carbon, organic, particulate, standard deviation
type: PropertyValue
unit text: ±
subject of: DefinedTermSet
  has defined term: carbon
  has defined term: organic
  has defined term: particulate
  has defined term: standard deviation
    type: DefinedTerm
    alternate name: std dev

Nitrogen, organic, particulate
type: PropertyValue
unit text: µg/l
description: µg N L-1
subject of: DefinedTermSet
  has defined term: nitrogen
  has defined term: organic
  has defined term: particulate
  has defined term: Density

Nitrogen, organic, particulate, standard deviation
type: PropertyValue
unit text: ±
subject of: DefinedTermSet
  has defined term: nitrogen
  has defined term: organic
  has defined term: particulate
  has defined term: standard deviation
    type: DefinedTerm
    alternate name: std dev

Ciliates
type: PropertyValue
unit text: #/l
measurement technique: Light microscopy (Utermöhl 1958)
subject of: DefinedTermSet
  has defined term: optical microscopes

Diatoms
type: PropertyValue
unit text: #/l
measurement technique: Light microscopy (Utermöhl 1958)
subject of: DefinedTermSet
  has defined term: optical microscopes

Dinoflagellates
type: PropertyValue
unit text: #/l
measurement technique: Light microscopy (Utermöhl 1958)
subject of: DefinedTermSet
  has defined term: dinoflagellates
  has defined term: optical microscopes

Cells, other, indeterminata
type: PropertyValue
unit text: #/l
measurement technique: Light microscopy (Utermöhl 1958)
subject of: DefinedTermSet
  has defined term: cell
  has defined term: optical microscopes

Flagellates, other
type: PropertyValue
unit text: #/l
measurement technique: Light microscopy (Utermöhl 1958)
subject of: DefinedTermSet
  has defined term: Flagellates
  has defined term: optical microscopes

Red only fluorescing picophytoplankton
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry
subject of: DefinedTermSet
  has defined term: red

Red only fluorescing nanophytoplankton, small
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry
subject of: DefinedTermSet
  has defined term: red
  has defined term: small

Red only fluorescing nanophytoplankton, large
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry
subject of: DefinedTermSet
  has defined term: red
  has defined term: large

Orange and red fluorescing picophytoplankton
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry
subject of: DefinedTermSet
  has defined term: orange

Red only fluorescing nanophytoplankton
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry
subject of: DefinedTermSet
  has defined term: red

Orange fluorescing prokaryote picophytoplankton
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry

Orange and red fluorescing nanophytoplankton
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry
subject of: DefinedTermSet
  has defined term: orange

Heterotrophic nanophytoplankton
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry

Heterotrophic prokaryotes
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry

Heterotrophic prokaryotes with relatively low nucleic acid
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry

Heterotrophic prokaryotes, medium
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry

Heterotrophic prokaryotes, large
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry
subject of: DefinedTermSet
  has defined term: large

Heterotrophic prokaryotes with relatively high nucleic acid
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry

Heterotrophic prokaryotes, very large
type: PropertyValue
unit text: #/ml
measurement technique: Flow cytometry
subject of: DefinedTermSet
  has defined term: large

Sample code/label
type: PropertyValue
description: 16S rRNA gene unique sample name ENA (Sample Alias)

Accession number
type: PropertyValue
description: 16S rRNA gene ENA sample accession
subject of: DefinedTermSet
  has defined term: accession number

Sample code/label
type: PropertyValue
description: 18S rRNA gene unique sample name ENA (Sample Alias)

Accession number
type: PropertyValue
description: 18S rRNA gene ENA sample accession
subject of: DefinedTermSet
  has defined term: accession number

Sample code/label
type: PropertyValue
description: Metagenome-sample name

Accession number
type: PropertyValue
description: Metagenome ENA sample accession
subject of: DefinedTermSet
  has defined term: accession number

Project
type: PropertyValue
description: JGI Project ID (metagenome)

Accession number, genetics
type: PropertyValue
description: SRA Accession (metagenome)
subject of: DefinedTermSet
  has defined term: accession number

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encoding format: text/tab-separated-values

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