Pigment signatures of algal communities and their implications for glacier surface darkening

Autor: Laura Halbach, Lou-Anne Chevrollier, Eva L. Doting, Joseph M. Cook, Marie B. Jensen, Liane G. Benning, James A. Bradley, Martin Hansen, Lars C. Lund-Hansen, Stiig Markager, Brian K. Sorrell, Martyn Tranter, Christopher B. Trivedi, Matthias Winkel, Alexandre M. Anesio

Publikováno v: Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)

Abstract Blooms of pigmented algae darken the surface of glaciers and ice sheets, thereby enhancing solar energy absorption and amplifying ice and snow melt. The impacts of algal pigment and community composition on surface darkening are still poorly

Externí odkaz: https://doaj.org/article/1070a3502cb44249a3fb1f026fd0dcbf

Tidewater Glaciers and Bedrock Characteristics Control the Phytoplankton Growth Environment in a Fjord in the Arctic

Autor: Laura Halbach, Mikko Vihtakari, Pedro Duarte, Alistair Everett, Mats A. Granskog, Haakon Hop, Hanna M. Kauko, Svein Kristiansen, Per I. Myhre, Alexey K. Pavlov, Ankit Pramanik, Agnieszka Tatarek, Tomas Torsvik, Józef M. Wiktor, Anette Wold, Angela Wulff, Harald Steen, Philipp Assmy

Publikováno v: Frontiers in Marine Science, Vol 6 (2019)

Meltwater discharge from tidewater glaciers impacts the adjacent marine environment. Due to the global warming, tidewater glaciers are retreating and will eventually terminate on land. Yet, the mechanisms through which meltwater runoff and subglacial

Externí odkaz: https://doaj.org/article/fcd7b32fefde4aa181150440e524367e

Active and dormant microorganisms on glacier surfaces

Autor: James A. Bradley, Christopher B. Trivedi, Matthias Winkel, Rey Mourot, Stefanie Lutz, Catherine Larose, Christoph Keuschnig, Eva Doting, Laura Halbach, Athanasios Zervas, Alexandre M. Anesio, Liane G. Benning

Publikováno v: Geobiology
Bradley, J A, Trivedi, C B, Winkel, M, Mourot, R, Lutz, S, Larose, C, Keuschnig, C, Doting, E, Halbach, L, Zervas, A, Anesio, A M & Benning, L G 2023, ' Active and dormant microorganisms on glacier surfaces ', Geobiology, vol. 21, no. 2, pp. 244-261 . https://doi.org/10.1111/gbi.12535

Glacier and ice sheet surfaces host diverse communities of microorganisms whose activity (or inactivity) influences biogeochemical cycles and ice melting. Supraglacial microbes endure various environmental extremes including resource scarcity, freque

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::068ce043c9a7f4e7dac1c6a1315760be
https://pubmed.ncbi.nlm.nih.gov/36450703

The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill

Autor: Robert King, Simon N. Jarman, Jürgen Groeneveld, Gernot Nehrke, I. Noyan Yilmaz, Christine Klaas, Michael D. Sumner, Bettina Meyer, Albrecht Götz, Dieter Wolf-Gladrow, So Kawaguchi, Eugene J. Murphy, Lutz Auerswald, Jessica Melbourne-Thomas, Laura Halbach, Robert Ricker, Sally E. Thorpe, Sharon Stammerjohn, Mathias Teschke, Volker Grimm, Ulrich Freier, Thomas Krumpen, Evgeny A. Pakhomov, Klaus M Meiners, Brian P. V. Hunt, Rowan Trebilco, Sven E. Kerwath

Publikováno v: EPIC3Nature Ecology & Evolution, Springer Nature, 1, pp. 1853-1861, ISSN: 2397-334X

A dominant Antarctic ecological paradigm suggests that winter sea ice is generally the main feeding ground for krill larvae. Observations from our winter cruise to the southwest Atlantic sector of the Southern Ocean contradict this view and present t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68b4c6a62741ee1544d4000e622fc055
https://pubmed.ncbi.nlm.nih.gov/29133903