OB018
Marine snow and associated small-scale processes with large-scale implications
Session ID#: 84547
Session Description:
Marine aggregates of phytoplankton, detritus, and inorganic matter, known as marine snow, play a crucial role in global ocean dynamics in many ways. Marine snow aggregates represent fast sinking vehicles of particulate organic matter, accelerating the vertical downward flux of photosynthetically-fixed carbon to the deep ocean. Sinking aggregates are often densely colonized by highly active heterotrophic microbial communities and serve as a food source for zooplankton, making them hotspots for elemental cycling and trophic interactions in the water column. In addition marine snow aggregates also play an important role in the fate of contaminants, such as plastics and spilled oil, as they may incorporate these substances during formation and sinking through the water column. Through all of these small-scale processes, marine snow can have important implications for biogeochemical and ecological dynamics at much larger scales. This session welcomes presentations on marine snow research (including laboratory, field, and modeling studies) focusing on any biological, physical, or chemical processes involving marine snow, such as: 1) formation, sinking, and fragmentation processes of marine snow; 2) biogeochemical cycling of marine snow-associated organic matter; 3) interactions between marine snow and zooplankton grazers; or 4) marine snow processes involving oil, plastics, or other contaminants.
Index Terms:
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: CHEMICAL]
4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL]
4817 Food webs, structure, and dynamics [OCEANOGRAPHY: BIOLOGICAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL]
Primary Chair: Jennifer C. Prairie, University of San Diego, Environmental and Ocean Sciences, San Diego, CA, United States
Co-chairs: Uta Passow, University of California Santa Barbara, Santa Barbara, CA, United States and Kai Ziervogel, University of New Hampshire, Ocean Process Analysis Laboratory, Durham, NH, United States
Primary Liaison: Jennifer C. Prairie, University of San Diego, Environmental and Ocean Sciences, San Diego, CA, United States
A Path Towards Modeling Marine Particle Disaggregation through In-Situ Measurements of Fragmentation Strength (637564)
Matthew Rau1, Yixuan Song1 and Steven G Ackleson2, (1)Pennsylvania State University Main Campus, University Park, PA, United States, (2)Naval Research Laboratory, Washington, D.C., DC, United States
Quantifying reactions of copepods to marine snow through image analysis (637910)
Thomas Drake, University of San Diego, San Diego, United States, Jennifer C. Prairie, University of San Diego, Environmental and Ocean Sciences, San Diego, CA, United States, Hennessy Martinez, Mater Dei Catholic High School, Chula Vista, CA, United States and Christian Briseño-Avena, Oregon State University, Hatfield Marine Science Center, Newport, OR, United States
The Influence of Temporal Variability on Marine Snow Dynamics in a Subtropical Estuary System (640460)
Elizabeth Harvey, University of New Hampshire, Durham, NH, United States, Sean Anderson, Skidaway Institute of Oceanography at the University of Georgia, Marine Sciences, Savannah, GA, United States and Patrick Duffy, Skidaway Institute of Oceanography at the University of Georgia, United States
Diurnal Periodicity in Particle Flux in the Gulf of Mexico, Estimates from Flux Camera observed Particle Data (640609)
Arne R Diercks, The University of Southern Mississippi, Division of Marine Science, Stennis Space Center, MS, United States and Justin Blancher, University of Southern Mississippi, Division of Marine Science, Stennis Space Center, MS, United States
Can the protein/carbohydrate (P/C) ratio of exopolymeric substances (EPS) be used as a proxy for its ‘stickiness’ and other biophysical properties? (642136)
Peter H Santschi1, Chen Xu2, Kathleen Schwehr2, Peng Lin2, Luni Sun2, Wei-Chun Chin3, Manoj Kamalanathan4, Hernando Bacosa5 and Antonietta Quigg5, (1)Texas A&M University College Station, College Station, TX, United States, (2)Texas A&M University at Galveston, Department of Marine Sciences, Galveston, TX, United States, (3)University of California Merced, School of Engineering, Merced, CA, United States, (4)Texas A&M University at Galveston, Marine Biology, TX, United States, (5)Texas A&M University at Galveston, Marine Biology, Galveston, TX, United States
The fate and distribution of oil residues in deep-sea sediments resulting from the sinking of marine snow in the northern Gulf of Mexico (643082)
Isabel C Romero1, Jeff Chanton2, Gregg Brooks3, Samantha Bosman2, Rebekka Larson4 and Arne R Diercks5, (1)University of South Florida, Saint Petersburg, FL, United States, (2)Florida State University, Tallahassee, FL, United States, (3)Eckerd College, St. Petersburg, FL, United States, (4)Eckerd College, St Petersburg, FL, United States, (5)The University of Southern Mississippi, Division of Marine Science, Stennis Space Center, MS, United States
Fragmentation of marine snow and marine oil snow due to small-scale turbulence (643915)
Kai Ziervogel, University of New Hampshire, Durham, NH, United States, Julia Sweet, University of California, Santa Barbara, United States, Laura Bretherton, Mount Allison University, NB, Canada, Antonietta Quigg, Texas A&M University at Galveston, Marine Biology, Galveston, TX, United States and Uta Passow, University of California Santa Barbara, Santa Barbara, CA, United States
The SNOWMAN: a new experimental device to study quantitatively the link between phytoplankton community structure, the dynamics of marine snow formation and export time lag. (645235)
Emmanuel Christian Laurenceau-Cornec1, Alan Henderson2, Chris Young3, Matthieu Bressac1, Robert F Strzepek4, Lennart Thomas Bach1, Brivaëla Moriceau5, Jordan Toullec6 and Philip W. Boyd7, (1)University of Tasmania, Institute for Marine and Antarctic Studies, Ecology and Biodiversity, Hobart, TAS, Australia, (2)University of Tasmania, TAS, Australia, (3)Australian Antarctic Division, TAS, Australia, (4)University of Tasmania, Antarctic Gateway Partnership, Institute for Marine and Antarctic Studies (IMAS), Hobart, TAS, Australia, (5)CNRS, LEMAR, IUEM Institut Universitaire Européen de la Mer, Plouzané, France, (6)University of Western Brittany, Plouzané, France, (7)Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia
Rapid Abiotic Transformation of Marine Dissolved Organic Matter to Particulate Organic Matter in Marine Surface and Deep Waters. (649220)
Paola Valdes1, César Octavio Almeda-Jauregui1 and Helmut Maske2, (1)Centro de Investigación Científica y de Educación Superior de Ensenada, Oceanografía Biológica, Ensenada, BJ, Mexico, (2)CICESE, Oceanografía Biológica, Ensenada, BJ, Mexico
Unravelling the dynamics of pelagic ecosystems by quantitative observation of morphological attributes of marine snow: a case study in the Arctic. (650120)
Emilia Trudnowska, Institute of Oceanology Polish Academy of Sciences, Sopot, Poland, Leo Lacour, Unité Mixte Internationale Takuvik (CNRS / U. Laval), Quebec City, QC, Canada, Andreas Rogge, Institute for Ecosystem Research, Kiel University, Kiel, Germany; Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Bremerhaven, Germany, Jean Olivier Irisson, Laboratoire d'Océanographie de Villefranche (LOV), UMR 7093, Sorbonne Université, Villefranche-sur-Mer, France, Anya M Waite, Ocean Frontier Institute, Dalhousie University, Halifax, NS, Canada, Marcel Babin, Takuvik Joint International Laboratory, Université Laval & CNRS, Québec, QC, Canada and Lars Stemmann, Laboratoire d’Océanographie de Villefranche (LOV), UMR 7093, Sorbonne Université, Villefranche sur mer, France
Transcriptome-wide responses of marine snow aggregates of the diatom Odontella aurita to oil (651621)
Laura Bretherton1, Yue Liang2, Christopher Malcolm Brown3, Deepak Nanjappa2, Uta Passow4, Antonietta Quigg5, Andrew J Irwin6 and Zoe Finkel2, (1)Mount Allison University, NB, Canada, (2)Dalhousie University, Department of Oceanography, Halifax, NS, Canada, (3)University of the Pacific, Stockton, CA, United States, (4)University of California Santa Barbara, Santa Barbara, CA, United States, (5)Texas A&M University at Galveston, Marine Biology, Galveston, TX, United States, (6)Dalhousie University, Department of Mathematics and Statistics, Halifax, NS, Canada
Are Traditional Lab Experiments Biasing Our Understanding Of Microbial Processes On Organic Matter Particles? (652152)
Mina Bizic, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany, Danny Ionescu, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany and Hans-Peter Grossart, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Dep. 3, Experimental Limnology, Stechlin/OT Neuglobsow, Germany
Marine Snow Consumption by Zooplankton Facilitates a Novel Entry Pathway for Domoic Acid into the Marine Food Web (654026)
Israel Marquez1,2, Ann Abraham3 and Jeffrey W Krause1,2, (1)Dauphin Island Sea Lab, Dauphin Island, AL, United States, (2)University of South Alabama, Department of Marine Sciences, Mobile, AL, United States, (3)Food and Drug Administration, Division of Seafood Science and Technology, Dauphin Island, AL, United States
The effect of marine snow particle distribution on copepod behavior (654541)
Elena Beckhaus1, Jennifer C. Prairie2, Maya Young1 and Moira Décima3, (1)University of San Diego, San Diego, CA, United States, (2)University of San Diego, Environmental and Ocean Sciences, San Diego, CA, United States, (3)National Institute of Water and Atmospheric Research, Wellington, New Zealand
The effect of distribution on copepod ingestion of marine snow particles (655954)
Maya Young1, Jennifer C. Prairie2, Elena Beckhaus1 and Moira Décima3, (1)University of San Diego, San Diego, CA, United States, (2)University of San Diego, Environmental and Ocean Sciences, San Diego, CA, United States, (3)National Institute of Water and Atmospheric Research, Wellington, New Zealand
A comparative study of the particle size spectra for Arctic, North Atlantic and Southern Ocean spring blooms: implications for POC export and sinking velocity. (656048)
Feliciano C de Soto1, Elena Ceballos-Romero2, Morten H. Iversen3 and Maria Villa-Alfageme2, (1)Universidad Pablo Olavide, Physical, Chemical and Natural Systems, Spain, (2)Universidad de Sevilla, Applied Physics II, Sevilla, Spain, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany
Consistent Increase in Particle Sinking Velocity with Depth Found across >30 High-Latitude Phytoplankton Blooms using Biogeochemical Argo (658112)
Nathan Briggs1, Stephanie Henson2, Maria Villa-Alfageme3, Herve Claustre4, Filipa Carvalho2 and Sari Lou Carolin Giering5, (1)National Oceanography Center, Southampton, United Kingdom, (2)National Oceanography Centre, Southampton, United Kingdom, (3)Universidad de Sevilla, Applied Physics II, Sevilla, Spain, (4)Laboratoire d'Océanographie de Villefranche, Villefranche-sur-Mer, France, (5)National Oceanography Centre Southampton, Ocean Biogeochemistry and Ecosystems, Southampton, United Kingdom
