The National Centre for Research and Development



CORE; Programme area: climate change including polar research; ID: 196260



Project title: POLNOR - The Changing Ocean of the Polar North


Acronym: POLNOR


Project Promoter: Institute of Oceanology Polish Academy of Sciences


Polish partners: Institute of Paleobiology Polish Academy of Sciences


Norwegian Partners: The Norwegian Institute for Water Research; Akvaplan-niva


Project cost (EUR): 965 286


Grant amount (EUR): 965 286

Duration: 38 months



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Project summary:

The study area, Arctic is the region most influenced by ongoing global climate change. Sea ice retreat in the central Arctic Ocean due to warming is leading to higher pCO2 values in the surface waters, reduced CaCO3 saturation states and increased biological production. The proposed project will provide an assessment of how the Arctic ecosystem will respond to multiple stressors arising from ocean warming and chemistry change caused by ocean acidification (OA). OA is a decrease in pH in the oceans caused by the uptake of anthropogenic CO2 from the atmosphere and is recognized to have negative effects on many groups of marine invertebrates with calcareous skeletons. These effects may be expressed as changes in calcification rate, decrease in abundance, recruitment and survival rates. The project will investigate the control of ocean carbonate chemistry, hydrology, primary productivity and energy transfer on biogenic carbonates and carbonate producers. It will investigate the effects of ocean acidification on the biodiversity and structure of benthic systems through analysis of spatial patterns of diversity coupled with geochemical properties of the water column. By investigating record of geochemical signatures in marine sediments and organism skeletons that can indicate anthropogenic changes over time including OA, warming and food supply, we will be able to build comprehensive predictive models. Such information will improve simulations of future changes. Our goal is to develop new knowledge of future tipping points and thresholds for marine production and resource management. Fulfilment of the project objectives will be done through five individual but closely related and inter-dependent work packages: 1. Baseline ocean observations and contemporary modelling 2. Marine biodiversity and ecological function 3. Recent and subfossil geochemistry of carbonate sediments and organisms 4. Future Arctic Ocean change and society 5. Synthesis of the Results.


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