ME007:
Zooplankton and Nekton: Gatekeepers of the Biological Pump


Session ID#: 28390

Session Description:
Many zooplankton and nekton organisms migrate daily between the surface layer - where they feed at nighttime - and mesopelagic depth - where they hide from  predation at daytime. These migrations can increase vertical export via active flux that can constitute half of the total carbon export. However, zooplankton and nekton also feed on and dis-aggregate particles, thereby reducing the vertical export.  Zooplankton and nekton can therefore be considered gatekeepers of the biological pump - the active and passive export of carbon to depth. A detailed understanding of the biological pump and its modulation via climate change is necessary, as the biological pump is responsible for a significant withdrawal of carbon from the euphotic, climate active zone. Acoustic and in situ optic measurements allow us to monitor zooplankton, nekton, and particles at unprecedented detail and to link these observations to environmental conditions. Laboratory experiments give insights into individual-based processes ranging from animal activity at different conditions to the colonization of particles by microzooplankton. We invite contributions that link individual-based process studies and local to global scale observational or modelling approaches to better characterize the gatekeeper role of zooplankton and nekton for the biological pump.
Primary Chair:  Rainer Kiko, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Co-chairs:  Daniele Bianchi, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, Amy Maas, Woods Hole Oceanographic Institution, Department of Biology, Woods Hole, MA, United States and Morten Iversen, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
Index Terms:

1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]
4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4890 Zooplankton [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • BN - Biogeochemistry and Nutrients
  • OM - Ocean Modeling
  • PC - Past, Present and Future Climate

Abstracts Submitted to this Session:

Yoshiyuki Abe, Hokkaido University, Hakodate-shi, Japan, Nicole Hildebrandt, Kohei Matsuno, National Institute of Polar Research, Arctic Environment Research Center, Tachikawa, Japan, Atsushi Yamaguchi, Hokkaido University, Graduate School of Fisheries Sciences, Hakodate, Japan, Babara Niehoff, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Germany and Toru Hirawake, Hokkaido University, Faculty of Fisheries Sciences, Hakodate, Japan
Anela Choy1, Steven Haddock1 and Bruce H Robison2, (1)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (2)MBARI, Moss Landing, CA, United States
Rosie L Oakes1,2, Victoria L Peck3, Clara Manno3 and Timothy J Bralower1, (1)Pennsylvania State University Main Campus, University Park, PA, United States, (2)Academy of Natural Sciences of Drexel University, Philadelphia, PA, United States, (3)NERC British Antarctic Survey, Cambridge, United Kingdom
Amy Maas1, Craig A Carlson2, Elizabeth B Kujawinski3, Shuting Liu2, Rachel Jane Parsons4 and Brittany Widner5, (1)Woods Hole Oceanographic Institution, Department of Biology, Woods Hole, MA, United States, (2)University of California Santa Barbara, Marine Science Institute/Department of Ecology, Evolution and Marine Biology, Santa Barbara, CA, United States, (3)Woods Hole Oceanographic Inst, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (4)Bermuda Institute for Ocean Sciences, BIOS, St. George's, Bermuda, (5)Woods Hole Oceanographic Institution, MA, United States
Kelly Sutherland and Keats R Conley, University of Oregon, Oregon Institute of Marine Biology, Eugene, OR, United States
Ken Buesseler and Erin E Black, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Ndague Diogoul, IRD Institute of Research for Development, Institute of Environmental Sciences (ISE), Cheikh Anta Diop University (UCAD), B.P. 5005, Dakar, Senegal, Patrice Brehmer, Institute of Research for Development (IRD), UMR 195 LEMAR (CNRS-IRD-IFREMER-UBO), France, Yannick Perrot, Institute of Research for Development (IRD), UMR 195 Laboratory of Marine Environmental Sciences (LEMAR), Plouzané, France, Maik Tiedeman, Thunen-Institute (TI), Institute of Sea Fisheries, Federal Research Institute for Rural Areas, Forestry and Fisheries, Pamaille 9, 22767 Hamburg, Germany, Abou Thiam, Institute of Environmental Sciences (ISE), Cheikh Anta Diop University (UCAD), B.P. 5005, Dakar, Senegal, Oumar Sadio, Institute of Research for Development (IRD), UMR 195 LEMAR, BP 1386, Dakar, Senegal and Abdoulaye Sarré, Senegalese Institute of Agricultural Research (ISRA), Oceanographic Research Center of Dakar Thiaroye (CRODT), BP 2221, Dakar, Senegal
Svenja Christiansen1, Henk-Jan T Hoving2, Florian Schütte3, Helena Hauss2, Johannes Karstensen1, Arne Koertzinger1, Lars Stemmann4, Simon-Martin Schröder5, Bernd Christiansen6, Marc Picheral7, Peter Brandt8, Bruce H Robison9, Reinhard Koch5 and Rainer Kiko2, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany, (3)GEOMAR Helmholtz-Centre for Ocean Research Kiel, Chemical Oceanography, Kiel, Germany, (4)University Pierre and Marie Curie Paris VI - LOV, Villefranche-sur-Mer, France, (5)University Kiel, Department of Computer Sciences, Germany, (6)University Hamburg, Institute for Hydrobiology and Fisheries Science, Hamburg, Germany, (7)Observatoire Océanologique de Villefranche-sur-Mer, Villefranche Sur Mer Cedex, France, (8)GEOMAR, Kiel, Germany, (9)MBARI, Moss Landing, CA, United States
Camilla Svensen1, Morten Iversen2, Marja Koski3, Ingrid Wiedmann4, Fredrika (Maria) Norrbin1, Jofrid Skardhamar5 and Coralie Barth-Jensen1, (1)Uit the Arctic university of Norway, Department of Arctic and Marine Biology, Tromsø, Norway, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (3)National Institute of Aquatic Resources, Charlottenlund, Denmark, (4)UiT the Arctic university of Norway, Department of Arctic and Marine Biology, Tromsø, Norway, (5)Institute of Marine Research, Tromsø, Norway
Rainer Kiko1, Arne Biastoch1, Peter Brandt1, Sophie E Cravatte2, Helena Hauss3, Rebecca Marie Hummels1, Iris Kriest1, Frederic Marin4, Andrew M. P. McDonnell5, Andreas Oschlies1, Marc Picheral6, Franziska U Schwarzkopf1, Andreas M Thurnherr7 and Lars Stemmann6, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)IRD Nouvelle-Calédonie, Nouméa, New Caledonia, (3)GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany, (4)LEGOS/IRD, Toulouse, France, (5)University of Alaska Fairbanks, Fairbanks, AK, United States, (6)Observatoire Océanologique de Villefranche-sur-Mer, Villefranche Sur Mer Cedex, France, (7)Lamont-Doherty Earth Observatory of Columbia University, New York, NY, United States
Deborah K Steinberg, John A Conroy and Patricia S Thibodeau, Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, VA, United States
Jessica Pretty1, Jessica S Turner2, Marc Picheral3 and Andrew M. P. McDonnell1, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Virginia Institute of Marine Science, Gloucester Point, VA, United States, (3)Observatoire Océanologique de Villefranche-sur-Mer, Villefranche Sur Mer Cedex, France
Aliza Karim and Kelly Sutherland, University of Oregon, Oregon Institute of Marine Biology, Eugene, OR, United States
Cesar Vilas1, Enrique Gonzalez-Ortegon2, Francisco Baldo3, María Paz Jimenez3 and Pilar Drake3, (1)Andalusian Institute for Agriculture and Fisheries Research and Training IFAPA, Fisheries Resources, El Puerto de Santa María, Spain, (2)Postdoc, Spain, (3)Researcher, Spain

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