Article
Geosciences, Multidisciplinary
N. S. Wolfenbarger, M. G. Fox-Powell, J. J. Buffo, K. M. Soderlund, D. D. Blankenship
Summary: Brine systems in Europa's ice shell may provide potential habitats that are more accessible than the sub-ice ocean. A study shows that these brine pockets are not chemically restrictive to life as we know it in the chloride and sulfate-dominated ocean compositions considered. A new metric called brine volume fraction is introduced to evaluate nutrient transport and recycling, allowing the identification of stable nutrient-open, nutrient-closed, and relict habitats.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Biodiversity Conservation
Francesca Leasi, Joseph L. Sevigny, Brandon T. Hassett
Summary: Establishing robust estimates of polar marine biodiversity is important for interpreting future changes in the Arctic. Despite the recent increase in scientific expeditions, the region remains relatively underexplored, particularly in terms of small species like protists, fungi, and many small invertebrates known as meiofauna. The study used a metabarcoding approach to assess metazoan biodiversity in sea ice and sediment samples from Utqiagvik, Alaska, and found that season and habitat are significant predictors of meiofaunal biodiversity, supporting the use of meiofauna as indicators of climate change.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Vanessa Pitusi, Rolf Gradinger, Janne E. Soreide
Summary: Svalbard is experiencing rapid warming and significant loss of fjord sea ice. This loss has a potential negative impact on the unique sea ice community, which consists of microscopic flora and fauna.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Jens Terhaar, Ronny Lauerwald, Pierre Regnier, Nicolas Gruber, Laurent Bopp
Summary: Research indicates that carbon and nutrients from land play a significant role in Arctic Ocean ecosystems and NPP, contributing to the evolution of Arctic Ocean NPP in the future.
NATURE COMMUNICATIONS
(2021)
Article
Environmental Sciences
Ilya Chernov, Alexey Tolstikov, Nikolay Iakovlev
Summary: This paper presents a numerical model for the White Sea, focusing on the dynamics of sea ice and its ecosystem. The model is shown to accurately reproduce sea-ice concentration and timing, as well as simulate reasonable dynamics of the sea-ice ecosystem. The importance of the sympagic component is highlighted, influencing the timing and height of the spring bloom.
Article
Geosciences, Multidisciplinary
T. J. W. Wagner, I. Eisenman, H. C. Mason
Summary: The study found that equatorward sea ice drift consistently leads to loss of ice volume, and the impact on ice area depends on seasonal factors and background climate. When there is enough ice, drift may slightly expand ice area, but for thinner ice, drift during the melt season can cause cracks and substantial ice loss that persists throughout the year.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Engineering, Environmental
Melanie Bergmann, Steve Allen, Thomas Krumpen, Deonie Allen
Summary: Plastic pollution is widespread, even in remote ecosystems like Arctic sea ice and deep-sea sediments. A pilot study found high concentrations of microplastics in ice algae Melosira arctica and ambient sea water from the Fram Strait. The microplastics could be trapped by the algae and act as a temporary sink and pathway to the deep seafloor.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Suhas S. Shetye, K. Nandakumar, Siby Kurian, Mangesh Gauns, Damodar M. Shenoy, Hema Naik, P. J. Vidya, Supriya G. Karapurkar
Summary: This study presents the seasonal and spatial distribution of total organic carbon (TOC) in the coastal waters of the eastern Arabian Sea. The results show higher TOC off Kochi compared to Goa and Mangalore, which may be due to stronger upwelling along the Kerala coast. Seasonal data indicate that high TOC is observed during specific periods, and the high concentrations during the fall inter monsoon (FIM) are a combination of various factors.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Geosciences, Multidisciplinary
Jinlun Zhang
Summary: The model study indicates that the slowdown in the decline of Arctic sea ice volume during 2007-2020 is a result of decreased ice export exceeding the decrease in net ice production. Thinner ice grows faster than thicker ice under freezing conditions, and benefits from enhanced ice divergence and shear.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Irina Chubarenko, Alexander Lazaryuk, Tatiana Orlova, Olga Lobchuk, Clarissa Raguso, Andrey Zyubin, Marina Lasagni, Francesco Saliu
Summary: Sea ice is highly polluted with microplastic particles, with a significant proportion being fibers. The average abundance of microplastics in sea ice was found to be 428 particles/L of meltwater, with an average mass of 34.6 mg/L, predominantly consisting of fragments from large particles (>300 μm). Furthermore, the study revealed a strong positive correlation between the quantity of large fiber particles and ice salinity.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Ivan J. Cautain, Kim S. Last, David McKee, Bodil A. Bluhm, Paul E. Renaud, Amanda F. Ziegler, Bhavani E. Narayanaswamy
Summary: This study investigates the assimilation of sympagic organic material (OM) by benthic organisms in the Arctic shelves and its variation with seasonal sea ice duration. The results show that sympagic OM can constitute a significant fraction of benthic diets and its assimilation is strongly correlated with sea ice cover duration. The importance of sympagic OM is more evident in the summer compared to winter, and its availability and patchiness play a role in carbon supply for Barents Sea benthos.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Fanny Cusset, Julie Charrier, Guillaume Masse, Mark Mallory, Birgit Braune, Jennifer Provencher, Gael Guillou, Philippe Massicotte, Jerome Fort
Summary: Sea ice plays a crucial role in Arctic marine ecosystems, affecting primary productivity and contamination levels in marine organisms. This study focuses on seabirds in the Arctic and examines the impact of sea ice and ice-derived resources on their mercury contamination. Results suggest that sea ice concentration is the primary driver of mercury contamination in seabirds. This research provides new insights into mercury contamination in Arctic wildlife and highlights the importance of further investigation into the sources and mechanisms of mercury contamination.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Marine
Yanze Zhang, Nengfang Chao, Fupeng Li, Lianzhe Yue, Shuai Wang, Gang Chen, Zhengtao Wang, Nan Yu, Runzhi Sun, Guichong Ouyang
Summary: The rapid decline of Arctic sea ice has had significant impacts on the global climate, polar ecosystems, and shipping routes. Precise long-term and high-resolution estimates of Arctic sea ice changes are crucial for adapting to climate change and developing Arctic marine resources. This study comprehensively analyzes the characteristics of Arctic sea ice thickness, volume, and extent using satellite altimeter data and investigates the relationship between surface temperature and wind field. The results show consistent loss trends in Arctic sea ice freeboard, thickness, extent, and area, with a significant decrease in sea ice volume. Sea surface temperature and wind field are identified as important influencing factors on Arctic sea ice variations.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Geography, Physical
Ling Fang, Theo M. Jenk, Thomas Singer, Shugui Hou, Margit Schwikowski
Summary: This study introduces a new method of using the dissolved organic carbon (DOC) fraction for C-14 dating, which has shown comparable results to the traditional WIOC-C-14 dating approach. The experiment suggests that the DOC fraction may provide a valuable alternative for dating ice cores with low carbon content, showing potential for greater accuracy and precision with a smaller required ice mass.
Article
Biodiversity Conservation
Arianna Rocchi, Ana Sotomayor-Garcia, Miguel Cabrera-Brufau, Elisa Berdalet, Manuel Dall'Osto, Dolors Vaque
Summary: The Western Antarctic Peninsula has seen significant changes in seawater temperature, which affects the microbial cycling of organic matter in seawater and sea ice. This study focuses on sea ice viral abundances and processes and found that the virus and microorganism abundances in sea ice are higher than in the surrounding surface seawater. Viral activities may have a significant impact on the functioning of the microbial food web and biogeochemical cycles in the underlying surface waters.
Article
Chemistry, Multidisciplinary
Lavenia Ratnarajah, Delphine Lannuzel, Ashley T. Townsend, Klaus M. Meiners, Stephen Nicol, Ari S. Friedlaender, Andrew R. Bowie
Article
Chemistry, Multidisciplinary
Cristina Genovese, Marco Grotti, Jessica Pittaluga, Francisco Ardini, Julie Janssens, Kathrin Wuttig, Sebastien Moreau, Delphine Lannuzel
Article
Geosciences, Multidisciplinary
M. Lambelet, T. van de Flierdt, E. C. V. Butler, A. R. Bowie, S. R. Rintoul, R. J. Watson, T. Remenyi, D. Lannuzel, M. Warner, L. F. Robinson, H. C. Bostock, L. I. Bradtmiller
GEOPHYSICAL RESEARCH LETTERS
(2018)
Article
Chemistry, Analytical
Kathrin Wuttig, Ashley T. Townsend, Pier van der Merwe, Melanie Gault-Ringold, Thomas Holmes, Christina Schallenberg, Pauline Latour, Manon Tonnard, Micha J. A. Rijkenberg, Delphine Lannuzel, Andrew R. Bowie
Article
Oceanography
K. M. Meiners, M. Vancoppenolle, G. Carnat, G. Castellani, B. Delille, D. Delille, G. S. Dieckmann, H. Flores, F. Fripiat, M. Grotti, B. A. Lange, D. Lannuzel, A. Martin, A. McMinn, D. Nomura, I. Peeken, P. Rivaro, K. G. Ryan, J. Stefels, K. M. Swadling, D. N. Thomas, J. -L. Tison, P. van der Merwe, M. A. van Leeuwe, C. Weldrick, E. J. Yang
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2018)
Article
Oceanography
S. Moreau, D. Lannuzel, J. Janssens, M. C. Arroyo, M. Corkill, E. Cougnon, C. Genovese, B. Legresy, A. Lenton, V. Puigcorbe, L. Ratnarajah, S. Rintoul, M. Roca-Marti, M. Rosenberg, E. H. Shadwick, A. Silvano, P. G. Strutton, B. Tilbrook
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2019)
Article
Oceanography
S. M. Lim, S. Moreau, M. Vancoppenolle, F. Deman, A. Roukaerts, K. M. Meiners, J. Janssens, D. Lannuzel
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2019)
Article
Oceanography
L. Duprat, N. Kanna, J. Janssens, A. Roukaerts, F. Deman, A. T. Townsend, K. M. Meiners, P. van der Merwe, D. Lannuzel
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2019)
Article
Chemistry, Multidisciplinary
Naoya Kanna, Delphine Lannuzel, Pier van der Merwe, Jun Nishioka
Article
Environmental Sciences
A. Kelly, D. Lannuzel, T. Rodemann, K. M. Meiners, H. J. Auman
MARINE POLLUTION BULLETIN
(2020)
Article
Geochemistry & Geophysics
Paul Vallelonga, Jefferson S. de Gois, Daniel L. G. Borges, Marta Costas-Rodriguez, Vasileios Gkinis, Delphine Lannuzel, Andrea Spolaor, Frank Vanhaecke
Summary: This study investigated the isotopic partitioning of Br and Cl in Southern Ocean sea ice for the first time. While the concentrations of bromine and chlorine showed a positive correlation, the isotopic compositions exhibited less consistent relation and significant variability within individual ice cores. Various factors such as ice texture, age, salt content, and algal biomass content may influence isotopic fractionation processes in sea ice.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Oceanography
Guillaume Liniger, Peter G. Strutton, Delphine Lannuzel, Sebastien Moreau
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2020)
Article
Oceanography
L. Duprat, M. Corkill, C. Genovese, A. T. Townsend, S. Moreau, K. M. Meiners, D. Lannuzel
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2020)
Article
Environmental Sciences
Delphine Lannuzel, Letizia Tedesco, Maria van Leeuwe, Karley Campbell, Hauke Flores, Bruno Delille, Lisa Miller, Jacqueline Stefels, Philipp Assmy, Jeff Bowman, Kristina Brown, Giulia Castellani, Melissa Chierici, Odile Crabeck, Ellen Damm, Brent Else, Agneta Fransson, Francois Fripiat, Nicolas-Xavier Geilfus, Caroline Jacques, Elizabeth Jones, Hermanni Kaartokallio, Marie Kotovitch, Klaus Meiners, Sebastien Moreau, Daiki Nomura, Ilka Peeken, Janne-Markus Rintala, Nadja Steiner, Jean-Louis Tison, Martin Vancoppenolle, Fanny Van der Linden, Marcello Vichi, Pat Wongpan
NATURE CLIMATE CHANGE
(2020)
Article
Geosciences, Multidisciplinary
Julie Janssens, Klaus M. Meiners, Ashley T. Townsend, Delphine Lannuzel
FRONTIERS IN EARTH SCIENCE
(2018)
