The seeding of ice algal blooms in Arctic pack ice : the multiyear ice seed repository hypothesis
Date
2017-07-03Author
Olsen, Lasse M.
Concept link
Laney, Samuel R.
Concept link
Duarte, Pedro
Concept link
Kauko, Hanna Maria
Concept link
Fernández-Méndez, Mar
Concept link
Mundy, Christopher J.
Concept link
Rösel, Anja
Concept link
Meyer, Amelie
Concept link
Itkin, Polona
Concept link
Cohen, Lana
Concept link
Peeken, Ilka
Concept link
Tatarek, Agnieszka
Concept link
Róźańska-Pluta, Magdalena
Concept link
Wiktor, Jozef
Concept link
Taskjelle, Torbjørn
Concept link
Pavlov, Alexey K.
Concept link
Hudson, Stephen R.
Concept link
Granskog, Mats A.
Concept link
Hop, Haakon
Concept link
Assmy, Philipp
Concept link
Metadata
Show full item recordCitable URI
https://hdl.handle.net/1912/9215As published
https://doi.org/10.1002/2016JG003668DOI
10.1002/2016JG003668Abstract
During the Norwegian young sea ICE expedition (N-ICE2015) from January to June 2015 the pack ice in the Arctic Ocean north of Svalbard was studied during four drifts between 83° and 80°N. This pack ice consisted of a mix of second year, first year, and young ice. The physical properties and ice algal community composition was investigated in the three different ice types during the winter-spring-summer transition. Our results indicate that algae remaining in sea ice that survived the summer melt season are subsequently trapped in the upper layers of the ice column during winter and may function as an algal seed repository. Once the connectivity in the entire ice column is established, as a result of temperature-driven increase in ice porosity during spring, algae in the upper parts of the ice are able to migrate toward the bottom and initiate the ice algal spring bloom. Furthermore, this algal repository might seed the bloom in younger ice formed in adjacent leads. This mechanism was studied in detail for the dominant ice diatom Nitzschia frigida. The proposed seeding mechanism may be compromised due to the disappearance of older ice in the anticipated regime shift toward a seasonally ice-free Arctic Ocean.
Description
© The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Journal of Geophysical Research: Biogeosciences 122 (2017): 1529–1548, doi:10.1002/2016JG003668.
Collections
Suggested Citation
Journal of Geophysical Research: Biogeosciences 122 (2017): 1529–1548The following license files are associated with this item:
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International
Related items
Showing items related by title, author, creator and subject.
-
Multi-year patterns in testosterone, cortisol and corticosterone in baleen from adult males of three whale species
Hunt, Kathleen E.; Lysiak, Nadine S. J.; Matthews, Cory J. D.; Lowe, Carley; Ajo, Alejandro Fernández; Dillon, Danielle; Willing, Cornelia; Heide-Jørgensen, Mads Peter; Ferguson, Steven H.; Moore, Michael J.; Buck, C. Loren (Oxford University Press, 2018-09-21)Male baleen whales have long been suspected to have annual cycles in testosterone, but due to difficulty in collecting endocrine samples, little direct evidence exists to confirm this hypothesis. Potential influences of ... -
Carbon, water, and energy fluxes in a semiarid cold desert grassland during and following multiyear drought
Bowling, D. R.; Bethers-Marchetti, S.; Lunch, Claire K.; Grote, E. E.; Belnap, J. (American Geophysical Union, 2010-11-18)The net exchanges of carbon dioxide, water vapor, and energy were examined in a perennial Colorado Plateau grassland for 5 years. The study began within a multiyear drought and continued as the drought ended. The grassland ... -
Can Australian multiyear droughts and wet spells be generated in the absence of oceanic variability?
Taschetto, Andrea S.; Sen Gupta, Alexander; Ummenhofer, Caroline C.; England, Matthew H. (American Meteorological Society, 2016-08-19)Anomalous conditions in the tropical oceans, such as those related to El Niño–Southern Oscillation and the Indian Ocean dipole, have been previously blamed for extended droughts and wet periods in Australia. Yet the extent ...