DS005
Shining Light on the Dark Pelagic: Mesopelagic and Bathypelagic Community and Processes
Session ID#: 254230
Session Description:
The deep pelagic ocean represents 95% of the biosphere and hosts diverse communities that determine key processes in oceanic biogeochemical cycles. Crucial processes related to pressing environmental issuesâsuch as long-term carbon sequestration in the deep oceanâdepend on these communities. However, diversity studies have shown that we may know less than 1% of the species inhabiting the deep pelagic, including prokaryotes, protists, fungi, and metazoans. The lack of knowledge about the diversity, biomass, and functional roles of mesopelagic and bathypelagic organisms and assemblages hinders our ability to understand the global functioning of the oceans and to model their potential responses to both natural and anthropogenic stressors.
This session focuses on the deep pelagic ocean, including mesopelagic and bathypelagic zones, and welcomes studies that examine the many unknown aspects of this dark realm, including diversity from viruses to vertebrates, food webs, biogeochemical processes, and ecological patterns of these communities. We welcome novel and integrative approaches (i.e., models, machine learning, molecular, technology) that seek to characterize, quantify, and predict dynamics of deep ocean layers.
Co-Sponsor(s):
Index Terms:
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL]
4817 Food webs, structure, and dynamics [OCEANOGRAPHY: BIOLOGICAL]
4858 Population dynamics and ecology [OCEANOGRAPHY: BIOLOGICAL]
Primary Chair: Paola G. Batta-Lona, University of Connecticut, Marine Sciences, Groton, CT, United States
Co-chairs: Jennifer M Questel, University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, United States and Leocadio Blanco-Bercial, Bermuda Institute of Ocean Sciences - Arizona State University, Julie Ann Wrigley Global Futures Laboratory, St. George's, Bermuda
Trophic ecology of mesopelagic fishes in the Sargasso Sea: Insights from stable isotope analysis (2009448)
Josefina Mavrogeni1, Zuzana Musilová2, Kateřina Jandová1, Reinhold Hanel3 and Petra Horká1, (1)Charles University, Faculty of Science, Institute for Environmental Studies, Prague, Czech Republic, (2)Charles University, Faculty of Science, Department of Zoology, Prague, Czech Republic, (3)Johann Heinrich von Thünen Institute; Federal Research Institute for Rural Areas, Forestry and Fisheries, Institute of Fisheries Ecology, Bremerhaven, Germany
Assessing Distribution and Spatial Hotspots of Mesopelagic Fish in the Northeast Atlantic Using Active Acoustics (2024764)
Ms. Isuri Weerasinghe, University of Galway, Earth and Ocean Sciences, Galway, Ireland, Martin White, University of Galway, Earth and Life Sciences, Galway, Ireland and Dave Reid, International Council for the Exploration of the Sea, Copenhagen, Denmark
Making Deep Connections: The Role of Mesopelagic Food Webs in Sustaining Tuna and Swordfish Populations (2025385)
Ciara Willis1, Kayla Gardner1, Martin Arostegui2, Camrin Braun3, Di Jin4, Leah A Houghton3, Joel Llopiz1, Walt Golet5, Annette Govindarajan2, Melina Kourantidou6 and Simon Thorrold3, (1)Woods Hole Oceanographic Institution, Woods Hole, United States, (2)Woods Hole Oceanographic Institution, Biology, Woods Hole, United States, (3)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (4)Woods Hole Oceanographic Institution, Marine Policy Center, Woods Hole, MA, United States, (5)University of Maine, Orono, United States, (6)Université de Bretagne, Plouzané, France
Have we Misestimated the Importance of Non-crustacean Filter-feeders in the Mesopelagic? (2031955)
Russell R Hopcroft, University of Alaska Fairbanks, Fairbanks, AK, United States, Caitlin A Smoot, University of Alaska Fairbanks, Oceanography, Fairbanks, United States, Jennifer M Questel, University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, United States and Fred W Ogston, Humboldt State University, Arcata, United States
Modeling bio-physical interactions at meso- and submesoscales in the Gulf of California using a high-resolution acoustic profiling vehicle. (2038933)
Martha Ines Ortiz1, Ben Grassian2, Lindsay Grose2, Chris Roman2 and Brad Seibel3, (1)University of Rhode Island, Ocean Engineering, Narragansett, United States, (2)University of Rhode Island, Narragansett, United States, (3)University of South Florida Tampa, College of Marine Science, Tampa, United States
