HE003
Ecosystem structure and processes in a changing Arctic

Session ID#: 84738

Session Description:
The rate of atmospheric warming in the Arctic is outpacing that of other regions, and is associated with sea ice loss, warming ocean temperatures, changes in the hydrological cycle, and impacted ecosystems. Temperature-growth relations, nutrient cycling dynamics, altered seasonality, changing freshwater balances, expanded and contracted species range extensions, and new trophic pathways may each affect biodiversity, the population status of key species, and relations between humans and marine resources. As environmental change continues, can we anticipate how future Arctic ecosystems will compare to those of the past and present? Will the effects of a changing climate be the same across various Arctic regions? Organizers welcome presentations from all regions of the Arctic examining the drivers, rates, processes, and mechanistic controls that impart structure on any aspect of the high-latitude marine ecosystem.
Index Terms:

4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
4273 Physical and biogeochemical interactions [OCEANOGRAPHY: GENERAL]
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL]
9315 Arctic region [GEOGRAPHIC LOCATION]

Primary Chair:  Seth L Danielson, University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States
Co-chairs:  Lee Cooper, Univ MD Center Enviro Science, Solomons, MD, United States, Jacqueline M. Grebmeier, University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, MD, United States and Katrin Iken, University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States
Primary Liaison:  Seth L Danielson, UAF, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States
 
Winners and Losers in a Warming Arctic: Potential Habitat Gain and Loss for Epibenthic Invertebrates of the Chukchi and Bering Seas (519783)
Elizabeth Logerwell, NOAA/NMFS/Alaska Fisheries Science Center, Resource Assessment and Conservation Engineering Division, Seattle, WA, United States, Muyin Wang, University of Washington, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States, Lis Lindal Jorgensen, Institute of Marine Research, Tromso, Norway and Kimberly Rand, NOAA Alaska Fisheries Science Center, Seattle, WA, United States
 
Biogeographic distributions of Ostracoda in the Bering, Chukchi and Beaufort Seas (608422)
Laura Gemery1, Harry J Dowsett2, Lee W Cooper3, Thomas M Cronin2 and Jacqueline M. Grebmeier4, (1)USGS Headquarters, Reston, VA, United States, (2)U.S. Geological Survey, Florence Bascom Geoscience Center, Reston, VA, United States, (3)Univ Maryland, Solomons, MD, United States, (4)University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, MD, United States
 
Year-round Microbial Community Dynamics in the Arctic Ocean (Fram Strait; LTER Hausgarten) (636015)
Matthias Wietz1, Katja Metfies2, Wilken-Jon von Appen3, Sinhue Torres-Valdes4, Magda Cardozo5, Christina Bienhold6 and Antje Boetius4, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Germany, (2)Jacobs University, Germany, (3)Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (5)Max Planck Institute for Marine Microbiology, Bremen, Germany, (6)Max Planck Institute for Marine Microbiology, HGF-MPG Group for Deep Sea Ecology and Technology, Bremen, Germany
 
Benthic community response to seasonal variations in the pelagic-benthic coupling: In situ high-resolution studies of the benthic oxygen uptake in Arctic deep-sea sediments (636042)
Frank Wenzhofer, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, HGF-MPG Group for Deep Sea Ecology and Technology, Bremerhaven, Germany, Eva-Maria Nothig, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany, Autun Purser, Alfred-Wegener-Institute Helmholtz-Centrum for Polar and Marine Research, Germany, Melanie Bergmann, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany and Thomas Soltwedel, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Bremerhaven, Germany
 
Summer 2018 repeat autonomous vehicle surveys indicate age-0 Arctic cod are largely retained over the Chukchi Sea shelf (637265)
Robert Levine1, Alex De Robertis2, Daniel Grunbaum1, Rebecca A Woodgate3, Calvin Mordy4, Edward D Cokelet5, Noah Lawrence-Slavas6 and Heather M. Tabisola7, (1)University of Washington, School of Oceanography, Seattle, WA, United States, (2)NOAA Fisheries, Alaska Fisheries Science Center, Midwater Assessment and Conservation Engineering, Seattle, WA, United States, (3)University of Washington, Seattle, WA, United States, (4)Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States, (5)Pacific Marine Environmental Laboratory, Seattle, WA, United States, (6)NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States, (7)University of Washington, Joint Institute for the Study of Atmosphere and Ocean, Seattle, WA, United States
 
Changing occurrence of fall phytoplankton bloom and its impact on phytoplankton size structure in the Pacific Arctic (637379)
Hisatomo Waga, Hokkaido University, Faculty of Fisheries Sciences, Sapporo, Japan and Toru Hirawake, Hokkaido University, Faculty of Fisheries Sciences, Hakodate, Japan
 
Utilization and Importance of Sea Ice Derived Organic Carbon to Benthic Communities of the Chukchi Sea: Evidence from Highly Branched Isoprenoid Biomarkers (639089)
Chelsea Wegner1, Thomas A Brown2, Catherine Lalande3, Jacqueline M. Grebmeier1 and Lee W Cooper1, (1)University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, MD, United States, (2)Scottish Association for Marine Science, Oban, United Kingdom, (3)Laval University, Biology Department, Quebec City, QC, Canada
 
Environmental change in the Arctic is reflected in the decadal trend of stable nitrogen isotopes in harp seal teeth over the past 60 years. (639186)
Camille De La Vega1, Rachel Jeffreys2, Joanna Kershaw3, David J Yurkowski4, Anne Kirstine Frie5, Steve Ferguson4, Garry B Stenson6, Martin Biuw7, Sophie Smout8 and Claire Mahaffey1, (1)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, (2)University of Liverpool, Earth, Ocean and Ecological Sciences, United Kingdom, (3)University of St Andrews, St Andrews, Fife, KY16 8LB, UK, United Kingdom, (4)Freshwater Institute, Fisheries and Oceans Canada, Winnipeg, MB R3T 2N6, Canada, MB, Canada, (5)Institute of marine research, Nordnes NO-5817 Bergen, Norway, Norway, (6)Northwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, St. John's, NF, Canada, (7)Norwegian Polar Institute, Polar Environmental Centre, Tromsø, Norway, Norway, (8)University of St Andrews, United Kingdom
 
Water Mass Evolution and Circulation of the Northeastern Chukchi Sea in Summer: Implications for Nutrient Distributions (639376)
Leah McRaven1, Peigen Lin1, Robert S Pickart1, Kevin R Arrigo2, Frank Bahr1, Kate E Lowry2, Dean A Stockwell3 and Calvin W. Mordy4, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)Stanford University, Earth System Science, Stanford, CA, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States, (4)Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States
 
Finding the Estuaries Using Microbial Eukaryote Communities Along River to Sea Continuums in Hudson Bay, Canada. (640762)
Loic Jacquemot, Université Laval, Québec, QC, Canada and Connie Lovejoy
 
Linking Offshore Oceanography to Alaskan Lagoon Dynamics (641385)
Tyler Hennon, UAF, College of Fisheries and Ocean Sciences, Fairbanks, United States, Seth L Danielson, UAF, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States and Tahzay Jones, National Park Servcice, Anchorage, AK, United States
 
Quantification of the pelagic primary production beneath Arctic sea ice (641557)
Jaclyn L Clement Kinney1, Wieslaw Maslowski1, Robert Osinski2, Marina Frants3 and Younjoo Lee1, (1)Naval Postgraduate School, Monterey, CA, United States, (2)Institute of Oceanology Polish Academy of Sciences, Sopot, Poland, (3)University of New South Wales, Sydney, NSW, Australia
 
Mean and Time Dependent Circulation of the Eastern Chukchi Sea from Moored Timeseries in 2013-14 (642572)
Fei Tian1, Robert S Pickart2, Peigen Lin2, Bridget Ovall2, Phyllis J Stabeno3, Thomas Weingartner4, Motoyo Itoh5, Takashi Kikuchi5, Elizabeth L Dobbins4, Shaun W Bell3, Rebecca A Woodgate6 and Zhaomin Wang1, (1)Hohai University, China, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (3)NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States, (4)University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States, (5)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (6)Univ Washington, Seattle, WA, United States
 
Resolving the Community Size Structure of Arctic Protist Plankton – Are We Missing Important Details? (643328)
Vanessa Lampe1, Eva-Maria Nothig2 and Markus Schartau1, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany
 
Modelling Calanus population dynamics under climate change along the North American Pacific margin from the California Current to the Arctic (643553)
Neil Banas, University of Strathclyde, Glasgow, United Kingdom, Aidan Hunter, University of Strathclyde, Mathematics and Statistics, United Kingdom, Carin J Ashjian, Woods Hole Oceaonographic Institution, Woods Hole, MA, United States, Julie E Keister, University of Washington, School of Oceanography, Seattle, WA, United States, Robert G Campbell, University of Rhode Island Narragansett Bay, Narragansett, RI, United States, David G Kimmel, NOAA Fisheries, Alaska Fisheries Science Center, Seattle, WA, United States, Lisa B Eisner, NOAA - Alaska Fisheries Science Center, Seattle, WA, United States, Sofia Araujo Ferreira, University of Oslo, CEES / Department of Biosciences, Oslo, Norway and Jinlun Zhang, University of Washington, Seattle, WA, United States
 
Seasonal dependency of Arctic marine phytoplankton response under greenhouse warming in CMIP5 earth system models (643594)
Hyung-Gyu Lim, AOS program in Princeton Univ / NOAA-GFDL, Princeton, NJ, United States, Jong-Seong Kug, Pohang University of Science and Engineering, Pohang, South Korea, Charles A Stock, NOAA/GFDL, Princeton, NJ, United States and John P Dunne, NOAA Geophys Fluid Dynamic, Princeton, United States
 
Phytoplankton dynamics in a changing Arctic Ocean (643891)
Mathieu Ardyna, Stanford University, Stanford, CA, United States and Kevin R Arrigo, Stanford University, Earth System Science, Stanford, CA, United States
 
Copepod production in a high latitude shelf system (644556)
Alexandra Poje1, Caitlin Smoot1 and Russell R Hopcroft2, (1)University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States, (2)University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, United States
 
Multi-model intercomparison of the pan-Arctic ice-algal productivityon seasonal, interannual, and decadal timescales (644836)
Eiji Watanabe, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, Meibing Jin, University of Alaska Fairbanks, Fairbanks, AK, United States, Hakase Hayashida, University of Victoria, Victoria, BC, Canada, Jinlun Zhang, University of Washington, Seattle, WA, United States and Nadja Steiner, CCCma, Victoria, BC, Canada
 
Impacts of Short-Term Wind Events on Chukchi Hydrography and Sea Ice Retreat (644847)
KoFan Lu, UAF, School of Fisheries and Ocean Sciences, Fairbanks, AK, United States, Seth L Danielson, UAF, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States and Thomas Weingartner, University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States
 
Multifaceted biodiversity distributions in the Eastern Bering Sea over the recent decades, 1990-2018 (644978)
Irene D. Alabia1, Jorge García Molinos1, Sei-ichi Saitoh1, Takafumi Hirata1, Toru Hirawake2 and Franz J Mueter3, (1)Hokkaido University, Arctic Research Center, Sapporo, Japan, (2)Hokkaido University, Faculty of Fisheries Sciences, Hakodate, Japan, (3)UAF, College of Fisheries and Ocean Sciences, Juneau, AK, United States
 
N2O dynamics during the summer of 2017 in the Western Arctic Ocean (from the Bering Starit to the Chukchi Borderland): Spatial distribution, Controlling factors, and Air-Sea flux (645142)
SeongSu Kim1, Sung-Ho Kang2, Eun Jin Yang3, Ki-Tae Park4, Sang-min Eom5, Hyo-ryeon Kim5, Jang Mu Heo6 and Il-Nam Kim7, (1)Incheon National University, Marine Science, Incheon, South Korea, (2)KOPRI Korea Polar Research Institute, Incheon, Korea, Republic of (South), (3)Korea Polar Research Institute, Incheon, South Korea, (4)Korea Polar Research Institute, Division of Polar Climate Sciences, Incheon, South Korea, (5)Incheon National University, Incheon, South Korea, (6)Incheon National University, South Korea, (7)Incheon National University, Department of Marine Science, Incheon, South Korea
 
Morphological traits of zooplankton reveal ecological patterns along ice melt dynamics in the Arctic (645753)
Laure Vilgrain, Laboratoire d'Océanographie de Villefranche-sur-Mer, Villefranche-sur-Mer, France, Jean-Olivier Irisson, University Pierre and Marie Curie Paris VI, Lab. d'oceanographie, Villefranche, France, Sakina-Dorothée Ayata, LOV UPMC/CNRS, Villefranche sur mer Cedex, France, Marc Picheral, CNRS, Laboratoire d'Océanographie de Villefranche sur Mer, Paris Cedex 16, France, Marcel Babin, Takuvik Joint International Laboratory, Université Laval & CNRS, Québec, QC, Canada and Frederic Maps, Université Laval, Quebec, QC, Canada
 
Sediment oxygen consumption in the Pacific Arctic: Impacts of increased temperature and food supply on the benthic community and individual dominant organisms (646250)
Christina Goethel, University of Maryland (UMCES CBL), Solomons, MD, United States, Jacqueline M. Grebmeier, University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, MD, United States, Lee Cooper, Univ MD Center Enviro Science, Solomons, MD, United States and Christopher Rowe, Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, United States
 
Recent Changes in Benthic Prey Populations in Relation to Gray Whale Feeding in the Pacific Arctic (646373)
Jacqueline M. Grebmeier, University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, MD, United States, Sue Moore, University of Washington Seattle Campus, Seattle, WA, United States and Lee Cooper, Univ MD Center Enviro Science, Solomons, MD, United States
 
Acceleration of the hydrological cycle with climate warming disrupts marine ecosystem function in the Arctic Ocean (646701)
Weiwei Fu1, Jefferson Keith Moore2, Francois Primeau2 and James Tremper Randerson1, (1)University of California Irvine, Department of Earth System Science, Irvine, CA, United States, (2)University of California Irvine, Earth System Science, Irvine, CA, United States
 
Harmful Algae in the Canadian Arctic: The Phantom Menace? (646983)
Kaven Dionne, Institut des Sciences de la Mer de Rimouski and Québec-Océan, Rimouski, QC, Canada, Michel Poulin, Canadian Museum of Nature, Ottawa, ON, Canada, Andre Rochon, ISMER and GEOTOP, Rimouski, QC, Canada and Michel Gosselin, Univ. of Quebec at Rimouski, Rimouski, QC, Canada
 
BOEM’s Alaska Environmental Studies Program: A Review of the At-sea Seabird Surveys and Red Phalarope Tracking Study (648182)
Richard Raymond1, Kathy Kuletz2 and Richard Lanctot2, (1)Bureau of Ocean Energy Management, Environmental Studies Program, Anchorage, AK, United States, (2)US Fish and Wildlife Service, Migratory Bird Management, Anchorage, AK, United States
 
Bathyal and abyssal ecological changes indicate increased seasonal organic carbon fluxes following glacial retreat (648183)
Christina L Belanger, Sharon Sharon and Calie Payne, Texas A&M University College Station, Geology and Geophysics, College Station, TX, United States
 
Higher Phytoplankton Biomass Drives Recent Increases in Arctic Production (648357)
Kevin R Arrigo, Katelyn Lewis and Gert van Dijken, Stanford University, Earth System Science, Stanford, CA, United States
 
Multi-element Oceanic and Atmospheric Summer Isoscape of the Canadian Arctic Archipelago and Implications for Biogeochemical Cycling (648424)
Frances Crable1, Cynthia Garcia-Eidell1, Samira Umar1, Anthony William Bellagamba1, Stephanie Kadej2, Margaret Malone1, Brice Loose3, Brett Thornton4, Miquel A Gonzalez-Meler1, Max B Berkelhammer1 and Andrew King5, (1)University of Illinois at Chicago, Chicago, IL, United States, (2)Northern Arizona University, Flagstaff, United States, (3)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (4)Stockholm University, Stockholm, Sweden, (5)Norwegian Institute for Water Research, Oslo, Norway
 
Seasonal and Interannual Variability of Nitrate in the Eastern Chukchi Sea: Transport and Winter Replenishment (648721)
Calvin Mordy1,2, Shaun W Bell2,3, Edward D Cokelet2, Carol A Ladd2, Geoffery T Lebon2,3, Peter Proctor2,3, Phyllis J Stabeno2, David Strausz2,3, Eric Wisegarver2 and Kevin R Wood2,3, (1)Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States, (2)NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States, (3)JISAO/University of Washington, Seattle, WA, United States
 
Distribution of nitrogen fixation in the coastal Alaskan Arctic (648827)
Rachel E Sipler1, Deborah Ann Bronk2, Kendra A Turk-Kubo3, Katie Jean Harding3, Quinn N Roberts4, Mary Katherine Rogener5, Brianna Stanley4, Jenna Spackeen4, Elijah Zane Norton4, Samantha Benton Joye6 and Jonathan Zehr7, (1)Memorial University of Newfoundland, Ocean Sciences, St John's, NF, Canada, (2)Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States, (3)University of California Santa Cruz, Ocean Sciences, Santa Cruz, CA, United States, (4)Virginia Institute of Marine Science, Gloucester Point, VA, United States, (5)University of Georgia, Marine Sciences, Athens, GA, United States, (6)Univ Georgia, Department of Marine Sciences, Athens, GA, United States, (7)University of California, Santa Cruz, Ocean Sciences, Santa Cruz, CA, United States
 
Life history traits of an Arctic copepod in a changing environment (650371)
Kristina Kvile1, Francisco José Bullejos1, Robert G Campbell2 and Carin J Ashjian3, (1)University of Oslo, Department of Biosciences, Oslo, Norway, (2)University of Rhode Island Narragansett Bay, Narragansett, RI, United States, (3)Woods Hole Oceaonographic Institution, Woods Hole, MA, United States
 
Arctic zooplankton and the Lightscape of Fear: Behavioural Responses to Light Buffer Diel and Seasonal Changes in Visual Predation Risk (650416)
Laura Hobbs1,2, Neil Banas2, Jonathan Cohen3 and Øystein Varpe4, (1)Scottish Association for Marine Science, Oban, United Kingdom, (2)University of Strathclyde, Glasgow, United Kingdom, (3)University of Delaware, School of Marine Science and Policy, Lewes, DE, United States, (4)University Centre in Svalbard, Longyearbyen, Norway
 
The changing physical and biological drivers for the benthic biological hotspot regions in the northern Bering and Chukchi continental shelf (651301)
Zhixuan Feng, East China Normal University, Shanghai, China, Rubao Ji, Woods Hole Oceanographic Inst., Woods Hole, MA, United States, Carin J Ashjian, Woods Hole Oceaonographic Institution, Woods Hole, MA, United States, Jinlun Zhang, University of Washington, Seattle, WA, United States, Robert G Campbell, University of Rhode Island Narragansett Bay, Narragansett, RI, United States and Jacqueline M. Grebmeier, University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, MD, United States
 
A new framework for interregional comparisons of biogeochemical models across the Arctic Marginal Ice Zone (651952)
Fabian Grosse, University of Strathclyde, Mathematics and Statistics, Glasgow, United Kingdom, Neil Banas, University of Strathclyde, Glasgow, United Kingdom, Trevor Martin Sloughter, University of Strathclyde, Department of Mathematics & Statistics, Glasgow, United Kingdom, Marie Porter, Scottish Association for Marine Science, Oban, United Kingdom, Jinlun Zhang, University of Washington, Seattle, WA, United States and Ingrid Ellingsen, SINTEF Ocean, Trondheim, Norway
 
Variations in spring and summer phytoplankton size structure and community composition across water mass gradients in the Chukchi Sea (652931)
Lisa B Eisner, NOAA Anchorage, Anchorage, AK, United States, Michael W Lomas, Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States and Jens Nielsen, Technical University of Denmark, Novo Nordisk Foundation Center for Biosustainability, Horsholm, Denmark
 
Coupling Organic Composition with Metaproteomics to Track the Functional Responses of Arctic Ocean Microbiomes to Carbon Inputs (653051)
H. Rodger Harvey1, Molly Mikan1, Brook L Nunn2, Emma Timmins-Schiffman3, Michael Riffle4, Ian Salter5 and William S Noble3, (1)Old Dominion University, Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States, (2)University of Washington, Department of Genome Sciences, Seattle, United States, (3)University of Washington, Department of Genome Sciences, Seattle, WA, United States, (4)University of Washington Seattle Campus, Department of Biochemistry, Seattle, WA, United States, (5)Faroe Marine Research Institute, Environment, Torshavn, Faroe Islands
 
Beaufort Sea Upwelling and Corresponding Shifts in the Eukaryotic Community (653469)
Sveinn V Einarsson1, Dreux Chappell2, Kimberly Powell3, Kate E Lowry4, Robert S Pickart4 and Carin J Ashjian5, (1)Old Dominion University, Ocean, Earth, and Atmospheric Sciences, Norfolk, VA, United States, (2)Old Dominion University, Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States, (3)Old Dominion University, Ocean, Earth & Atmospheric Sciences, Norfolk, VA, United States, (4)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (5)Woods Hole Oceaonographic Institution, Woods Hole, MA, United States
 
An observational description of currents over the Chukchi Sea continental slope (654343)
Ryan M McCabe1, Phyllis J Stabeno2, Edward D Cokelet2 and Dongxiao Zhang3, (1)University of Washington, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States, (2)NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States, (3)JISAO/University of Washington and NOAA/PMEL, Seattle, WA, United States
 
Ice, Keels and Changing Seasons in the Chukchi Sea near Icy Cape, Alaska (654647)
Margaret E Sullivan, JISAO-NOAA/PMEL, Seattle, WA, United States, Phyllis J Stabeno, NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States and Carol A Ladd, NOAA/PMEL, Seattle, WA, United States
 
Trophic Dependencies of Arctic and Saffron Cod in the Nearshore Beaufort Sea, Alaska (654914)
Ashley Stanek1, Vanessa R von Biela2, Sarah M Laske1 and Kenneth H Dunton3, (1)USGS Alaska Science Center, Anchorage, United States, (2)U.S. Geological Survey, Alaska Science Center, Anchorage, AK, United States, (3)University of Texas at Austin, Marine Science Institute, Austin, TX, United States
 
Microbial uptake of dissolved organic nitrogen along the coastal Alaskan Arctic (655098)
Brianna Stanley1, Rachel E Sipler2, Quinn N Roberts1, Jenna Spackeen1, Elijah Zane Norton1 and Deborah Ann Bronk3, (1)Virginia Institute of Marine Science, Gloucester Point, VA, United States, (2)Memorial University of Newfoundland, Ocean Sciences, St John's, NF, Canada, (3)Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States
 
Inferring the Metabolic Diversity and Ecological Function of Non-Photosynthetic Diazotrophs in the Context of their Associated Microbial Communities Along a Latitudinal Transect in the Canadian Arctic Gateway (655188)
Julie LaRoche1, Brent M. Robicheau1, Jennifer Tolman2, Debany P. Fonseca Batista2, Dhwani Desai2 and Maria Teresa Maldonado3, (1)Dalhousie University, Department of Biology, Halifax, NS, Canada, (2)Dalhousie University, Biology, Halifax, NS, Canada, (3)University of British Columbia, Earth, Ocean & Atmospheric Sciences, Vancouver, BC, Canada
 
Phytoplankton Community Structure across a Distributed Biological Observatory in the Pacific Arctic Region (655227)
Luisa Young1, Karen E Frey1 and Maria T Kavanaugh2, (1)Clark University, Graduate School of Geography, Worcester, MA, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
Interannual Variability in Stratification, Nutrients, and Water Mass Structure in the Chukchi Sea (655327)
Carol A Ladd, NOAA Seattle, Seattle, WA, United States, Calvin W. Mordy, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States and Phyllis J Stabeno, NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States
 
Seabirds Signal a Changing Pacific Arctic (655453)
Kathy Kuletz, US Fish and Wildlife Service, Migratory Bird Management, Anchorage, AK, United States, Daniel Cushing, Pole Star Ecological Research LLC, Anchorage, AK, United States, Franz J Mueter, UAF, College of Fisheries and Ocean Sciences, Juneau, AK, United States, Elizabeth Labunski, US Fish and Wildlife Service, AK, United States and Adrian E Gall, ABR, Inc.- Environmental Research & Services, Fairbanks, AK, United States
 
Impacts of unprecedented loss of sea ice on multiple trophic levels and ecosystem structure in the Chukchi and Beaufort Seas (655646)
Esther Diane Goldstein1, Kristin Cieciel2, Dan Cooper1, Janet Duffy-Anderson1, Lisa B Eisner3, Ed Farley4, David Kimmel5, Kathy Kuletz6, Carol A Ladd7, Elizabeth Logerwell8, Calvin W. Mordy9, Adam H Spear10 and Phyllis J Stabeno11, (1)NOAA Fisheries, Alaska Fisheries Science Center, Seattle, WA, United States, (2)NOAA Fisheries, Alaska Fisheries Science Center, Auke Bay Laboratories, Juneau, AK, United States, (3)NOAA - Alaska Fisheries Science Center, Seattle, WA, United States, (4)NOAA Fisheries, Auke Bay Laboratory, Juneau, United States, (5)NOAA, Alaska Fisheries Science Center, Seattle, WA, United States, (6)US Fish and Wildlife Service, Migratory Bird Management, Anchorage, AK, United States, (7)NOAA/PMEL, Seattle, WA, United States, (8)NOAA/NMFS/Alaska Fisheries Science Center, Resource Assessment and Conservation Engineering Division, Seattle, WA, United States, (9)Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States, (10)NOAA, Alaska Fisheries Science Center, Seattle, United States, (11)NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States
 
Flow Patterns over the Chukchi Continental Shelf : 2010-2019 (656095)
Phyllis J Stabeno1, Shaun W Bell1, Ryan M McCabe2, Carol A Ladd3 and Kevin R Wood1, (1)NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States, (2)University of Washington, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States, (3)NOAA/PMEL, Seattle, WA, United States
 
The food of walrus and ducks: bivalve ecology during recent sea ice shifts in the N Bering and Chukchi Seas (656104)
Caitlin A Meadows, University of Chicago, Chicago, IL, United States
 
Rates and pathways of sediment organic-matter processing across the northern Bering and southern Chukchi Sea shelf (656228)
Sarah M Hardy1, Andrew Thurber2, Brittany R Jones1 and Sarah Seabrook3, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Oregon State University, Corvallis, OR, United States, (3)Oregon State University, CEOAS, Corvallis, OR, United States
 
Light transmittance and potential solar heating of the ocean water column following record low sea ice extents across the Distributed Biological Observatory in the Pacific Arctic Region (656541)
Karen E Frey1, Bonnie Light2, Aimee Renee Neeley3, Lee Cooper4 and Jacqueline M. Grebmeier4, (1)Clark University, Graduate School of Geography, Worcester, MA, United States, (2)University of Washington, Seattle, WA, United States, (3)NASA Goddard Space Flight Center, Greenbelt, United States, (4)University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, MD, United States
 
Heat over the Pacific Arctic Continental Shelves: Recent Changes in Content, Surface Fluxes and Throughput (656777)
Seth L Danielson, University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States
 
Increasing saffron cod abundance and length in the nearshore Beaufort Sea (656847)
Vanessa R von Biela1, Sarah M Laske2, Ashley Stanek2, Randy J Brown3 and Kenneth H Dunton4, (1)U.S. Geological Survey, Alaska Science Center, Anchorage, AK, United States, (2)USGS Alaska Science Center, Anchorage, United States, (3)U.S. Fish and Wildlife Service, Fairbanks, AK, United States, (4)University of Texas at Austin, Marine Science Institute, Austin, TX, United States
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