Tiia LuostarinenUniversity of Helsinki | HY · Ecosystems and Environment Research Programme / Environmental Change research Unit (ECRU)
Tiia Luostarinen
PhD
Looking for post doctoral opportunities in Polar palaeoceanography, micropalaeontology and proxy development.
About
3
Publications
482
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Introduction
My PhD research focused on biogenic sea-ice proxies, namely diatoms, dinoflagellate cysts and highly branched isoprenoid lipids. I am broadly interested in the Arctic region, and so far my studies have focused in Greenlandic coastal regions as well as Hudson Bay in Canada.
I am particularly interested in the Arctic environmental change and sea-ice decline and their impacts on the ecosystems and biodiversity.
Education
September 2014 - December 2017
Publications
Publications (3)
Spiny brown dinoflagellate cysts are commonly used as sea‐ice indicators in the Arctic, but their biological affinities are not well known. We present the first indication of hitherto temperate Protoperidinium tricingulatum in the Arctic based on single‐cell LSU rDNA sequencing from sediments of the Disko Bay‐Vaigat Sound, West Greenland. The morph...
Despite their wide use in past sea-ice reconstructions, the seasonal, habitat and species-based sources of sedimentary sea-ice proxies are poorly understood. Here, we conduct direct observations of the community composition of diatoms, dinoflagellate cysts and highly branched isoprenoid lipids within the sea ice, water column, sediment traps and se...
We recorded diatom species succession over one full year (May 2017–May 2018) using automated sediment traps installed in two contrasting Greenlandic fjords: the seasonally ice-covered Young Sound in high-arctic Northeast Greenland and the nearly sea-ice free Godthåbsfjord in subarctic Southwest Greenland. The traps were positioned at differing wate...
