The seeding of ice algal blooms in Arctic pack ice: The multiyear ice seed repository hypothesis

• DOI: 10.1002/2016jg003668
• Publication Date: 2017-06-09T06:35:09Z
• Authors: Lasse M. Olsen; Samuel R. Laney; Pedro Duarte; Hanna M. Kauko; Mar Fernández-Méndez; Christopher J. Mundy; Anja Rösel; Amelie Meyer; Polona Itkin; Lana Cohen; Ilka Peeken; Agnieszka Tatarek; Magdalena Róźańsk...; Józef Wiktor; Torbjørn Taskjelle; Alexey K. Pavlov; Stephen R. Hudson; Mats A. Granskog; Haakon Hop; Philipp Assmy
• Keywords: Fast ice; Melt pond

During the Norwegian young sea ICE expedition (N-ICE2015) from January to June 2015 pack ice in Arctic Ocean north of Svalbard was studied during four drifts between 83° and 80°N. This consisted a mix second year, first ice. The physical properties algal community composition investigated three different types winter-spring-summer transition. Our results indicate that algae remaining survived summer melt season are subsequently trapped upper layers column winter may function as an seed repository. Once connectivity entire is established, result temperature-driven increase porosity spring, parts able migrate toward bottom initiate spring bloom. Furthermore, this repository might bloom younger formed adjacent leads. mechanism detail for dominant diatom Nitzschia frigida. proposed seeding be compromised due disappearance older anticipated regime shift seasonally ice-free Ocean.