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Nutrient limitation of primary producers in High - arctic streams 2014

General

Organisation
Project start
01.07.2014
Project end
29.07.2014
Type of project
Research
Project theme
Limnic ecosystems
Project topic
Biology
Climate research

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, North-East
Fieldwork location

Geolocation is 74.481064624233, -20.538203505469

Fieldwork start
01.07.2014
Fieldwork end
29.07.2014

Project details

24.09.2018
Science / project plan

A change in nutrient concentrations will likely alter the structure of primary producers (biomass, species composition) and ecological function of the primary producers (primary production and nutrient uptake) in arctic streams. This can potentially result in a trophic cascade and thus influencing higher trophic levels in arctic streams and change the proportional contribution of primary producers (benthic algae, periphyton and moss) in the stream. In order to predict future changes it is important to increase our knowledge on primary producers in streams with different water source and how they are affected by factors impacted by climate change.
Our objectives were therefore: 1) To determine the assemblage and biomass of primary producers in five Arctic streams with different water source. The assemblage of both bryophytes and microalgae will be investigated; 2) To measure primary production on habitat scale dominated by different primary producers (epilithon, epipellon, epiphyte, moss); 3) Identify nutrient limitation and uptake rates of primary uptake compartments in the streams.

Fieldwork summary/photo blog: Link to project summary report

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