Nansen Legacy Q2 ice algae biodiversity slurpgun

Sampling event
Latest version published by The Nansen Legacy Project on Dec 21, 2022 The Nansen Legacy Project
Publication date:
21 December 2022
CC-BY 4.0

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The data was collected during the Nansen Legacy Seasonal Study Q2 from 27 April - 20 May 2021 on research vessel Kronprins Haakon (cruise number 2021704), along a transect in the northern Barents Sea from 76N to 82N. The dataset contains an abundance of ice algae protists, including phytoplankton (autotrophic) and protozooplankton (heterotrophic). Protists were identified and counted with light microscopy using the Utermöhl method and the result are given as cells per liter (cells/L).

Data Records

The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 28 records.

2 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

Event (core)

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.


The table below shows only published versions of the resource that are publicly accessible.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is The Nansen Legacy Project. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: 9e4137ee-6d4d-4eda-b17c-e132085e6a11.  The Nansen Legacy Project publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF Norway.


protist; ice algae; protozooplankton; abundance; ice station; Northern Barents Sea


Philipp Assmy
  • Originator
  • Point Of Contact
Norwegian Polar Institute
Rolf Gradinger
  • Originator
UiT The Arctic University of Norway
Bente Edvardsen
  • Originator
University of Oslo
Jozef Wiktor
  • Originator
Institute of Oceanology Polish Academy of Sciences
Agnieszka Tatarek
  • Originator
Institute of Oceanology Polish Academy of Sciences
Anette Wold
  • Metadata Provider
  • Point Of Contact
Norwegian Polar Institute

Geographic Coverage

The Nansen Legacy is a novel and holistic Arctic research project providing integrated scientific knowledge on the rapidly changing marine climate and ecosystem. A new knowledge base is required to facilitate sustainable management of the northern Barents Sea and adjacent Arctic Basin through the 21st century. The Nansen Legacy unites about 280 researchers, students, and technicians from ten Norwegian research institutions. The research team includes interdisciplinary arctic marine expertise within physical, chemical, and biological oceanography, as well as geologists, modelers, and underwater robotic engineers. Jointly we investigate the past, present, and future climate and ecosystem of the northern Barents Sea.

Bounding Coordinates South West [76, 29], North East [82, 35]

Temporal Coverage

Start Date / End Date 2021-04-27 / 2021-05-20

Sampling Methods

The samples were collected with a slurp gun underneath the ice. The samples were collected by swimming a given distance (the distance is given in the fieldNotes) and sucking up the ice algae attached to the sea ice in this given transect. The mix of ice sluch and ice algae was melted at 4°C. When melted, 95 mL of the sample was transferred into 100 ml brown glass bottle. The samples were preserved using an aldehyde mixture of glutaraldehyde and hexamethylenetetramine-buffered formalin at final concentrations of 0.1% and 1% respectively.

Study Extent The sampling covers a transect from the central Barents Sea (76N) to the Arctic Ocean (82N) east of Svalbard, including 7 stations (P1 to P7).

Method step description:

  1. All samples have been analysed at the Institute of Oceanology of the Polish Academy of Sciences (IOPAN). The organisms were identified and counted under an inverted microscope according to the Utermöhl method.

Additional Metadata