B22B:
Deep-Sea Ecosystems: Natural Dynamics and Adaptation to Climate and Anthropogenic Change I


Session ID#: 8540

Session Description:
Recent explorations have revealed widespread and diverse ecosystems in the deep-sea. These spectacular deep-sea ecosystems support high species biodiversity, biomass or both. Furthermore, they provide goods and services that are vital for the health and wellbeing of our planet. Different habitats have formed in relation to topography, oceanography (e.g. currents), water chemistry, seafloor substrate and food availability. Ecosystems such as cold-water coral reefs and hydrothermal vents not only support huge diversity of life, but are also vulnerable to impacts of human activities and climate change.  Natural dynamics, distribution, interconnections and adaptation of these ecosystems to anthropogenic change are critical to understanding ecosystem functioning through time and to make predictions about the future. This session will investigate ecosystems in specific areas of the oceans, including seamounts, cold-seeps, submarine canyons and continental slopes. Presenters are invited from different fields studying biogeographic patterns, biodiversity, biogeochemistry, oceanography and paleo-climatological characteristics of these fragile ecosystems.
Primary Convener:  Furu Mienis, Royal Netherlands Institute for Sea Research, Den Burg, Netherlands
Conveners:  Brendan Roark, Texas A&M University, Department of Geography, Texas, TX, United States and Nancy Prouty, USGS, Santa Cruz, United States
Chairs:  Nancy Prouty, USGS, Santa Cruz, United States, Brendan Roark, Texas A&M University, Department of Geography, Texas, TX, United States and Peter John Etnoyer, NOAA Charleston, Charleston, SC, United States
OSPA Liaison:  Furu Mienis, Royal Netherlands Institute for Sea Research, Den Burg, Netherlands

Cross-Listed:
  • OS - Ocean Sciences
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

0410 Biodiversity [BIOGEOSCIENCES]
0429 Climate dynamics [BIOGEOSCIENCES]
0460 Marine systems [BIOGEOSCIENCES]
0473 Paleoclimatology and paleoceanography [BIOGEOSCIENCES]

Abstracts Submitted to this Session:

Nitrogen and carbon isotopic variations from Black Corals spanning the last 4.5kya (Invited) (61225)
Stewart Fallon, The Australian National University, Research School of Earth Sciences, Canberra, Australia, Aimee K Komugabe-Dixson, The Australian National University, Acton, Australia and Ron Thresher, CSIRO Marine and Atmospheric Research Hobart, Hobart, Australia
Ba/Ca Ratios in North Pacific Bamboo Corals Record Changes in Intermediate Water Biogeochemistry (82896)
Gabriela Serrato Marks, Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, Michele LaVigne, Bowdoin College, Department of Earth and Oceanographic Science, Brunswick, ME, United States, Tessa M Hill, University of California Davis, Davis, CA, United States, Wilson Sauthoff, University of California Santa Cruz, Santa Cruz, United States, Thomas P Guilderson, Lawrence Livermore National Laboratory, Livermore, CA, United States, E Brendan Roark, Texas A & M University College Station, College Station, United States and Robert B Dunbar, Stanford University, Stanford, CA, United States
Developing bioproxies of past ocean ecosystem change through compound-specific stable isotope analysis of proteinaceous deep-sea corals. (84383)
Kelton McMahon, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, Branwen Williams, Claremont Colleges, Claremont, CA, United States, Matthew D McCarthy, University of California Santa Cruz, Santa Cruz, CA, United States and Peter John Etnoyer, NOAA Charleston, Charleston, SC, United States
Deep-sea ecosystem response to bottom trawling impacts: changes in sediment bioturbation patterns (Invited) (73704)
Pere Puig1, Jacobo Martin1,2, Pere Masqué3,4, Ariadna Mecho1, Joan B Company1 and Albert Palanques1, (1)ICM-CSIC, Barcelona, Spain, (2)Centro Austral de Investigaciones Científicas (CADIC-CONICET), Ushuaia, Argentina, (3)Edith Cowan University, Center for Marine Ecosystems Research. School of Science, Joondalup, Australia, (4)Autonomous University of Barcelona (UAB), Institut de Ciència i Tecnologia Ambientals & Departament de Física, Bellaterra, Spain
Deep Submarine Tailings Disposal (DSTP) the Proposed Use of Submarine Canyons and Artificial Turbidity Currents for the Disposal of Mine Waste: Current Practice, Future Plans, and Cumulative Impacts. (82982)
Roy Young, Nature’s Own, Boulder, CO, United States and Robert Moran, Moran Associates, Golden Colorado, United States
Benthic Foraminifera, Food in the Deep Sea, and Limits to Bentho-Pelagic Coupling (70797)
Ellen Thomas, Wesleyan University, Middletown, United States, Flavia Boscolo-Galazzo, Padova University, Department of Geosciences, Padova, Italy, Gabriela J. Arreguin-Rodrigu, Universidad Autónoma de Baja California, Área de Geología, Facultad de Ciencias Marinas, Colonia Playitas, Ensenada, Mexico, Silvia Ortiz, PetroStrat Ltd, Conwy, United Kingdom and Laia Alegret, University of Zaragoza, Departamento de Ciencias de la Tierra & Instituto Universitario de Ciencias Ambientales, Zaragoza, Spain
Deep-sea pennatulaceans (sea pens) - recent discoveries, morphological adaptations, and responses to benthic oceanographic parameters (66281)
Gary C. Williams, California Academy of Sciences, San Francisco, CA, United States
Temperature Impacts on Deep-Sea Biodiversity (78674)
Moriaki Yasuhara, University of Hong Kong, Hong Kong, Hong Kong and Roberto Danovaro, Polytechnic University of Marche, Ancona, Italy; Stazione Zoologica Anton Dohrn, Napoli, Italy

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