Search Results - "A. Lange, Benjamin"

The importance of ice algae-produced carbon in the central Arctic Ocean ecosystem: Food web relationships revealed by lipid and stable isotope analyses by Kohlbach, Doreen, Graeve, Martin, A. Lange, Benjamin, David, Carmen, Peeken, Ilka, Flores, Hauke

“…To better predict ecological consequences of changing Arctic sea ice environments, we aimed to quantify the contribution of ice algae-produced carbon (α Ice)…”
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Dependency of Antarctic zooplankton species on ice algae‐produced carbon suggests a sea ice‐driven pelagic ecosystem during winter by Kohlbach, Doreen, Graeve, Martin, Lange, Benjamin A., David, Carmen, Schaafsma, Fokje L., Franeker, Jan Andries, Vortkamp, Martina, Brandt, Angelika, Flores, Hauke

“…How the abundant pelagic life of the Southern Ocean survives winter darkness, when the sea is covered by pack ice and phytoplankton production is nearly zero,…”
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Contrasting Ice Algae and Snow‐Dependent Irradiance Relationships Between First‐Year and Multiyear Sea Ice by Lange, Benjamin A., Haas, Christian, Charette, Joannie, Katlein, Christian, Campbell, Karley, Duerksen, Steve, Coupel, Pierre, Anhaus, Philipp, Jutila, Arttu, Tremblay, Pascal O. G., Carlyle, Cody G., Michel, Christine

“…During the 2018 Multidisciplinary Arctic Program‐Last Ice in the Lincoln Sea, we sampled 45 multiyear ice (MYI) and 34 first‐year ice (FYI) cores, combined…”
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The importance of sea ice for exchange of habitat-specific protist communities in the Central Arctic Ocean by Hardge, Kristin, Peeken, Ilka, Neuhaus, Stefan, Lange, Benjamin A., Stock, Alexandra, Stoeck, Thorsten, Weinisch, Lea, Metfies, Katja

“…Sea ice is one of the main features influencing the Arctic marine protist community composition and diversity in sea ice and sea water. We analyzed protist…”
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Comparing springtime ice-algal chlorophyll a and physical properties of multi-year and first-year sea ice from the Lincoln Sea by Lange, Benjamin A, Michel, Christine, Beckers, Justin F, Casey, J Alec, Flores, Hauke, Hatam, Ido, Meisterhans, Guillaume, Niemi, Andrea, Haas, Christian

“…With near-complete replacement of Arctic multi-year ice (MYI) by first-year ice (FYI) predicted to occur within this century, it remains uncertain how the loss…”
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Pan‐Arctic sea ice‐algal chl a biomass and suitable habitat are largely underestimated for multiyear ice by Lange, Benjamin A., Flores, Hauke, Michel, Christine, Beckers, Justin F., Bublitz, Anne, Casey, John Alec, Castellani, Giulia, Hatam, Ido, Reppchen, Anke, Rudolph, Svenja A., Haas, Christian

“…There is mounting evidence that multiyear ice (MYI) is a unique component of the Arctic Ocean and may play a more important ecological role than previously…”
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Ice Algae-Produced Carbon Is Critical for Overwintering of Antarctic Krill Euphausia superba by Kohlbach, Doreen, Lange, Benjamin A., Schaafsma, Fokje L., David, Carmen, Vortkamp, Martina, Graeve, Martin, van Franeker, Jan A., Krumpen, Thomas, Flores, Hauke

“…Antarctic krill Euphausia superba (‘krill’) constitute a fundamental food source for Antarctic seabirds and mammals, and a globally important fisheries…”
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Large-Scale Variability of Physical and Biological Sea-Ice Properties in Polar Oceans by Castellani, Giulia, Schaafsma, Fokje L., Arndt, Stefanie, Lange, Benjamin A., Peeken, Ilka, Ehrlich, Julia, David, Carmen, Ricker, Robert, Krumpen, Thomas, Hendricks, Stefan, Schwegmann, Sandra, Massicotte, Philippe, Flores, Hauke

“…In this study, we present unique data collected with a Surface and Under-Ice Trawl (SUIT) during five campaigns between 2012 and 2017, covering the spring to…”
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Sea-ice habitat minimizes grazing impact and predation risk for larval Antarctic krill by David, Carmen L., Schaafsma, Fokje L., van Franeker, Jan A., Pakhomov, Evgeny A., Hunt, Brian P. V., Lange, Benjamin A., Castellani, Giulia, Brandt, Angelika, Flores, Hauke

“…Survival of larval Antarctic krill ( Euphausia superba ) during winter is largely dependent upon the presence of sea ice as it provides an important source of…”
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Modeling Arctic sea‐ice algae: Physical drivers of spatial distribution and algae phenology by Castellani, Giulia, Losch, Martin, Lange, Benjamin A., Flores, Hauke

“…Algae growing in sea ice represent a source of carbon for sympagic and pelagic ecosystems and contribute to the biological carbon pump. The biophysical habitat…”
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Characterizing Spatial Variability of Ice Algal Chlorophyll a and Net Primary Production between Sea Ice Habitats Using Horizontal Profiling Platforms by Lange, Benjamin A., Katlein, Christian, Castellani, Giulia, Fernández-Méndez, Mar, Nicolaus, Marcel, Peeken, Ilka, Flores, Hauke

“…Assessing the role of sea ice algal biomass and primary production for polar ecosystems remains challenging due to the strong spatio-temporal variability of…”
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Photophysiological responses of bottom sea-ice algae to fjord dynamics and rapid freshening by Forgereau, Zoé L., Lange, Benjamin A., Gradinger, Rolf, Assmy, Philipp, Osanen, Janina E., García, Laura M., Søreide, Janne E., Granskog, Mats A., Leu, Eva, Campbell, Karley

“…Sea ice algae have a broad salinity tolerance but can experience stress during rapid decreases in salinity that occur with seasonal ice melt and during ice…”
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Sea-ice properties and nutrient concentration as drivers of the taxonomic and trophic structure of high-Arctic protist and metazoan communities by Flores, Hauke, David, Carmen, Ehrlich, Julia, Hardge, Kristin, Kohlbach, Doreen, Lange, Benjamin A., Niehoff, Barbara, Nöthig, Eva-Maria, Peeken, Ilka, Metfies, Katja

“…In the Arctic Ocean, sea-ice decline will significantly change the structure of biological communities. At the same time, changing nutrient dynamics can have…”
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Sea ice algae chlorophyll a concentrations derived from under‐ice spectral radiation profiling platforms by Lange, Benjamin A., Katlein, Christian, Nicolaus, Marcel, Peeken, Ilka, Flores, Hauke

“…Multiscale sea ice algae observations are fundamentally important for projecting changes to sea ice ecosystems, as the physical environment continues to…”
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Observations of preferential summer melt of Arctic sea-ice ridge keels from repeated multibeam sonar surveys by Salganik, Evgenii, Lange, Benjamin A, Katlein, Christian, Matero, Ilkka, Anhaus, Philipp, Muilwijk, Morven, Høyland, Knut V, Granskog, Mats A

“…Sea-ice ridges constitute a large fraction of the total Arctic sea-ice area (up to 40 %–50 %); nevertheless, they are the least studied part of the ice pack…”
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Allometric relationships of ecologically important Antarctic and Arctic zooplankton and fish species by Schaafsma, Fokje L., David, Carmen L., Kohlbach, Doreen, Ehrlich, Julia, Castellani, Giulia, Lange, Benjamin A., Vortkamp, Martina, Meijboom, André, Fortuna-Wünsch, Anna, Immerz, Antonia, Cantzler, Hannelore, Klasmeier, Apasiri, Zakharova, Nadezhda, Schmidt, Katrin, Van de Putte, Anton P., van Franeker, Jan Andries, Flores, Hauke

“…Allometric relationships between body properties of animals are useful for a wide variety of purposes, such as estimation of biomass, growth, population…”
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Snowmelt contribution to Arctic first-year ice ridge mass balance and rapid consolidation during summer melt by Lange, Benjamin A, Salganik, Evgenii, Macfarlane, Amy, Schneebeli, Martin, Høyland, Knut Vilhelm, Gardner, Jessie, Müller, Oliver, Divine, Dmitry, Kohlbach, Doreen, Katlein, Christian, Granskog, Mats

“…An assessment of potential groundwater areas in the Ifni basin, located in the western AntiAtlas range of Morocco, was conducted based on a multicriteria…”
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Quantifying false bottoms and under-ice meltwater layers beneath Arctic summer sea ice with fine-scale observations by Smith, Madison M., von Albedyll, Luisa, Raphael, Ian A., Lange, Benjamin A., Matero, Ilkka, Salganik, Evgenii, Webster, Melinda A., Granskog, Mats A., Fong, Allison, Lei, Ruibo, Light, Bonnie

“…During the Arctic melt season, relatively fresh meltwater layers can accumulate under sea ice as a result of snow and ice melt, far from terrestrial freshwater…”
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Sensitivity of Phytoplankton Primary Production Estimates to Available Irradiance Under Heterogeneous Sea Ice Conditions by Massicotte, Philippe, Peeken, Ilka, Katlein, Christian, Flores, Hauke, Huot, Yannick, Castellani, Giulia, Arndt, Stefanie, Lange, Benjamin A., Tremblay, Jean‐Éric, Babin, Marcel

“…The Arctic ice scape is composed by a mosaic of ridges, hummocks, melt ponds, leads, and snow. Under such heterogeneous surfaces, drifting phytoplankton…”
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Oxygen fluxes beneath Arctic land-fast ice and pack ice: towards estimates of ice productivity by Attard, Karl M., Søgaard, Dorte H., Piontek, Judith, Lange, Benjamin A., Katlein, Christian, Sørensen, Heidi L., McGinnis, Daniel F., Rovelli, Lorenzo, Rysgaard, Søren, Wenzhöfer, Frank, Glud, Ronnie N.

“…Sea-ice ecosystems are among the most extensive of Earth’s habitats; yet its autotrophic and heterotrophic activities remain poorly constrained. We employed…”
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