PC44A:
Advances in Understanding Marine Heat Waves and Their Impacts I Posters


Session ID#: 28280

Session Description:
Marine heatwaves (MHWs) are prolonged periods of anomalously warm seawater temperatures – extreme events that can have notable impacts on marine ecosystems. They occur regionally throughout the global oceans, including marginal seas, continental shelves, and the open ocean. These anomalously warm events arise from local and/or remotely forced mechanisms related to atmospheric, climate, and/or ocean variability. MHWs have been associated with widespread mortality of species in marine ecosystems, major shifts in ecosystem structure, and fisheries closures and quota reductions. In a warming ocean, these events are becoming more relevant as thermal stress approaches or exceeds ecosystem tolerance levels. Long-term, sustained observing systems and in-situ and remotely sensed temperature data are important for detecting, monitoring, and understanding these events. Ocean models have improved our ability to diagnose mechanisms responsible for the extreme warming events. This session welcomes studies on MHWs from physical processes to ecological impacts. Relevant themes include characterization of historical events from observations and/or models, progress in understanding the underlying dynamics in the generation and decay of MHWs, the impacts of climate variability and anthropogenic climate change on MHW occurrence, duration and intensity, improvements in monitoring systems for MHWs, and documentation of impacts on marine ecosystems, fisheries, and aquaculture.
Primary Chair:  Jessica Benthuysen, Australian Institute of Marine Science, Crawley, Western Australia, Australia
Co-chairs:  Eric Oliver, Dalhousie Universty, Department of Oceanography, Halifax, NS, Canada; Dalhousie University, Department of Oceanography, Halifax, NS, Canada, Ke Chen, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Thomas Wernberg, The University of Western Australia, UWA Oceans Institute & School of Biological Sciences, Perth, Australia
Moderators:  Ke Chen, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Eric Oliver, Dalhousie Universty, Department of Oceanography, Halifax, NS, Canada, Thomas Wernberg, The University of Western Australia, UWA Oceans Institute and School of Biological Sciences, Perth, Western Australia, Australia and Jessica Benthuysen, Australian Institute of Marine Science, Crawley, Western Australia, Australia
Student Paper Review Liaison:  Jessica Benthuysen, Australian Institute of Marine Science, Crawley, Western Australia, Australia
Index Terms:

4215 Climate and interannual variability [OCEANOGRAPHY: GENERAL]
4217 Coastal processes [OCEANOGRAPHY: GENERAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • B - Biodiversity
  • RS - Regional Studies

Abstracts Submitted to this Session:

Prof. Melanie R Fewings, PhD, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States and Kevin Sidney Jorden Brown, University of Connecticut, Department of Biomedical Engineering, Groton, CT, United States
Lauren Schmeisser, University of Washington Seattle Campus, Seattle, WA, United States, Samantha A Siedlecki, Univ of Washington-JISAO, Seattle, United States, Nicholas A Bond, Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, Seattle, WA, United States and Thomas P Ackerman, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States
Ryan M McCabe, University of Washington, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States, Barbara M Hickey, University of Washington, School of Oceanography, Seattle, WA, United States, Raphael Martin Kudela, University of California Santa Cruz, Ocean Sciences Department, Santa Cruz, CA, United States, Kathi A Lefebvre, NOAA Northwest Fisheries Science Center, Seattle, WA, United States, Nicolaus G Adams, NOAA Northwest Fisheries Science Center, Seattle, United States, Brian D Bill, NOAA Northwest Fisheries Science Center, Marine Biotoxins, Seattle, WA, United States, Frances M D Gulland, The Marine Mammal Center, Sausalito, CA, United States, Richard Thomson, Inst Ocean Sciences, Sidney, BC, Canada, William P Cochlan, San Francisco State University - Romberg Tiburon Center, Tiburon, United States and Vera L Trainer, NOAA Northwest Fisheries Science Center, Marine Biotoxins Program, Seattle, WA, United States
Christine Cass, California State Polytechnic University, Humboldt, Oceanography, Arcata, United States, Eric Bjorkstedt, NOAA Fisheries, Southwest Fisheries Science Center and Department of Fisheries Biology, California State Polytechnic University, Humboldt, United States and Roxanne Robertson, Cooperative Institute for Marine Ecosystems and Climate (CIMEC), California State Polytechnic University, Humboldt, Arcata, United States
Eric Bjorkstedt, NOAA Fisheries, Southwest Fisheries Science Center and Department of Fisheries Biology, California State Polytechnic University, Humboldt, United States and Roxanne Robertson, Cooperative Institute for Marine Ecosystems and Climate (CIMEC), California State Polytechnic University, Humboldt, Arcata, United States
Ke Chen, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Young-Oh Kwon, Woods Hole Oceanographic Institution, Woods Hole, United States
Robert William Schlegel, University of the Western Cape, Cape Town, South Africa, Eric Oliver, Dalhousie University, Department of Oceanography, Halifax, NS, Canada, Sarah Perkins-Kirkpatrick, University of New South Wales, Climate Change Research Centre and ARC Centre of Excellence for Climate System Science, Sydney, NSW, Australia, Andries Kruger, South African Weather Service, Pretoria, South Africa and Albertus J. Smit, University of the Western Cape, Biodiversity and conservation biology, Bellville, South Africa
Xue Feng, University of Hawaii at Manoa, Cooperative Institute for Marine and Atmospheric Research, Honolulu, HI, United States and Toshiaki Shinoda, Texas A&M University Corpus Christi, Department of Physical and Environmental Sciences, Corpus Christi, TX, United States
Eva Cougnon1,2, Neil John Holbrook3,4, Eric Oliver5,6 and Nathaniel L. Bindoff4,7, (1)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, Australia, (2)National Environmental Science Programme, Earth Systems and Climate Change Hub, Hobart, Australia, (3)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, (4)National Environmental Science Programme, Earth Systems and Climate Change Hub, Australia, (5)Dalhousie University, Department of Oceanography, Halifax, NS, Canada, (6)Dalhousie University, Oceanography, Halifax, NS, Canada, (7)Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia
Jessica Benthuysen, Australian Institute of Marine Science, Crawley, Western Australia, Australia, Eric Oliver, Dalhousie University, Department of Oceanography, Halifax, NS, Canada, Ming Feng, CSIRO, Environment, Crawley, Western Australia, Australia and Andrew Marshall, Australian Bureau of Meteorology, Hobart, TAS, Australia
Alistair J Hobday, CSIRO, Oceans & Atmosphere, Hobart, Australia, Eric Oliver, Dalhousie University, Department of Oceanography, Halifax, NS, Canada, Alexander Sen Gupta, ARC Centre of Excellence for Climate Extremes, Sydney, NSW, Australia, Thomas Wernberg, The University of Western Australia, UWA Oceans Institute and School of Biological Sciences, Perth, Western Australia, Australia, Dan E Smale, Marine Biological Association of the United Kingdom, Plymouth, United Kingdom, Neil John Holbrook, ARC Centre of Excellence for Climate System Science, Hobart, Australia, Mads S Thomsen, School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, New Zealand, Christchurch, New Zealand, Marcus G Donat, University of New South Wales, Climate Change Research Centre and ARC Centre of Excellence for Climate System Science, Sydney, Australia, Michael T Burrows, Scottish Association for Marine Science, Oban, United Kingdom, Jessica A Benthuysen, CSIRO, University of Tasmania, Hobart, TAS, Australia and Pippa J Moore, Aberystwyth University, Institute of Biological, Environmental and Rural Sciences, Aberystwyth, United Kingdom