AB-830 Ecosystems in Ice Covered Waters (10 ECTS)

Preparing for light measurements. Photo: Janne Søreide/UNIS

Spring semester (April–May), every second year. Cancelled spring 2021.
10 ECTS with AB-330
Letter grade (A through F)
Mixture of book chapters and scientific papers (ca 300 pages)
Fieldwork, NOK 1600 (8 days x NOK 200 per overnight stay)
10/20 students (AB-330/830 in total)
Bilingual dictionary between English and mother tongue
October 15, 2022


Janne Søreide
Janne Søreide
Professor, Arctic Marine Biology - Ecology

Course requirements:

Enrolment in a relevant PhD programme. Students with relevant PhD theses will be given preference.

Academic content:

This research-based hands-on course gives students both theoretical and practical insight to Arctic sea ice ecosystems, as well as training in scientific thinking and writing. The course focus on the lower trophic levels and the coupling between sympagic (= ice assicoated), pelagic and behthic compartments in ice covered seas. Further, the course stimulates to own creative and critical thinking. We ask the students to design their own research questions for the scientific report to be written based upon the samples and data collected during the week-long field excursion. The scientific report shall be written as a scientific paper. Introduction to physical properties of light, snow, sea ice and hydrography will be given, to better understand the physical constraints and drivers for structuring Arctic sea ice communities. Mechanisms regulating the timing of key biological processes such as the ice algal and phytoplankton blooms and secondary production will be emphasized as well as sea ice biodiversity, and the trophic coupling and carbon flux between sea ice (=sympagic), pelagic and benthic ecosystems.

In 2021, landfast sea ice ecosystems in western and eastern Spitsbergen will be studied and run in parallel with ongoing research projects on sea ice ecosystems. Transportation will be conducted using snowmobiles. Those without a driving license will travel as passengers. Teachers: Janne E. Søreide (UNIS, course responsible) and Rolf Gradinger (leader of Size: Centre of Seasonal Marginal Ice Zone programme at UiT The Arctic University of Norway).

Learning outcomes:

Upon completing the course, the students will have:

  • knowledge on species diversity and community composition in sea ice dominated ecosystems in the Arctic
  • extensive knowledge on important biological processes in sea ice ecosystems (colonization, timing of algal blooms, succession, trophic interactions and carbon flux), and general knowledge on physical properties of light, snow, sea ice (formation, age, structure etc.) and hydrography
  • in-depth understanding of which abiotic and biotic drivers that structure these unique sea ice ecosystems, and the linkages between the sea ice (sympagic), pelagic and benthic compartments.
  • improved competence in how to design and write a scientific paper.

Upon completing the course, the students will have:

  • the ability to species determine common protists, meiofauna and meso- and macrofauna living within and in close association with sea ice in the high Arctic
  • practical skills in operating various state-of-the art field-devices for collecting physical and biological data in sea ice covered environments
  • competence to plan and carry out field studies under sometimes challenging Arctic conditions
  • the ability to discuss scientific questions related to sea ice ecosystems
  • improved written and oral skills based on assignments given during the course (see below).

General competences
Upon completing the course, the students will have:

  • experience in safety standards related to work in harsh Arctic environments, including safe snow scooter driving on land an on sea ice
  • the ability to search for, critically read and extract relevant information from scientific literature
  • team work experience, including leading and organizing group work
  • competence in design and implementation of research tasks
  • experience in problem solving.

Learning activities:

The course extends over ca 6 weeks, and is run in combination with AB-330.

The course will start with a theoretical introduction and safety training (5–9 days) followed by extensive sampling activities on sea ice during a week-long field excursion, where PhD students are expected to take an active role as group leaders for 3-4 students. The samples will be analysed partly in field and partly back at UNIS in the laboratory. Taxonomic knowledge will be assessed by a practical exam. The data produced from field and lab work will provide the basis for the written scientific report, which will be the main focus for AB-830 students the last 2 weeks of the course. The PhD students are allowed to work in pairs and are asked to design relevant research questions, based on the data available, for their scientific report which will be written as a scientific paper. Regular seminars will be arranged for discussing selected papers ans the field results, which will stimulate to find the most appropriate data analyses and to draw conclusions.

Total lecture hours: 20 hours.
Laboratory exercises / seminars: 25 hours.
Excursion: Ca. 8 days.
Data analysis and presentations: 10 hours.

Compulsory learning activities:

Field excursions, laboratory work and technical written reports from these practical activities.
All compulsory learning activities must be approved in order to sit the exam.


Method Duration
Percentage of final grade
Practical exam 30%
Written scientific report 70%

All assessments must be passed in order to pass the course.
Each assessment is graded, and subsequently combined into a single grade. Partial grades for each assessment will be available.

Application deadline: 15 October 2022

Slideshow from fieldwork in Svea


Work camp on sea ice in Van Mijenfjorden during AB-330/830 fieldwork. Photo: Janne Søreide/UNIS

Work camp on sea ice in Van Mijenfjorden during AB-330/830 fieldwork. Photo: Janne Søreide/UNIS

Ice core with layer of brown ice algae. Photo: Janne Søreide/UNIS

Ice core with layer of brown ice algae. Photo: Janne Søreide/UNIS























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