Home / Meetings / IMBER OSC 2014 / Sessions & Workshops / Detecting, projecting and managing the impacts of change in Southern Ocean ecosystems

Detecting, projecting and managing the impacts of change in Southern Ocean ecosystems


  • Rachel Cavanagh
    Biological Sciences Division, British Antarctic Survey
    Cambridge, UK
  • Keith Reid
    Commission for the Conservation of Antarctic Marine Living Resources
    Hobart, Australia
    keith.reid@ccamlr.org; k.reid@bas.ac.uk
  • Nadine Johnston
    Ecosystems Programme, British Antarctic Survey
    Cambridge, UK
  • Andrew Constable
    Southern Ocean Ecosystem Change Programme, Australian Antarctic Division
    Kingston, Australia
  • Eileen Hofmann
    Center for Coastal Physical Oceanography, Old Dominion University
    Norfolk, USA
  • Eugene Murphy
    Ecosystems Programme, British Antarctic Survey
    Cambridge, UK

Description of the session

Southern Ocean ecosystems are integral to the Earth System, influencing global climate and biogeochemical cycles and maintaining unique biodiversity and ecosystem services. They are currently undergoing rapid climate-driven changes, with far reaching consequences for the rest of the globe. Detection, projection and management of their responses to change, including fisheries-driven change, is therefore crucial for effective stewardship and predicting effects on the Earth System.

To achieve the above requires a range of multidisciplinary approaches including:

  • Understanding of ecosystem operation across a range of trophic, spatial, and temporal scales (e.g. from individuals to whole ecosystems, from local to circumpolar, and years to decades);
  • Ecological monitoring systems to detect and measure changes;
  • A quantified set of scenarios capturing changes in the key physical and ecological parameters of the Southern Ocean and appropriate ecological models to generate projections of future change impacts;
  • Sustainable management procedures underpinned by ecological research.

These activities are being led by IMBER’s international and multidisciplinary programme ‘Integrating Climate and Ecosystem Dynamics in the Southern Ocean’ (ICED) and the international body responsible for the conservation of Antarctic marine ecosystems, the ‘Commission for the Conservation of Antarctic Marine Living Resources’ (CCAMLR). This multidisciplinary session, proposed by ICED and CCAMLR, will bring together scientists interested in ecology, management and protection to address the impacts of change and effective stewardship in the Southern Ocean as part of the global system. It will build on recent ICED activities on ecological monitoring, food webs studies, regional and circumpolar ecosystem syntheses, and model projections. It will also build on CCAMLR’s ecosystem-based approach to monitoring and management and consider pelagic ecosystem science required for future IPCC assessments. The aims are to:

  • Consider understanding and developments in Southern Ocean ecological monitoring systems and ecosystem operation and interaction across a range of trophic, spatial and temporal scales, including end-to-end views and current understanding of the impacts of change in the Southern Ocean;
  • Consider developments in quantified physical and ecological scenarios, ecological model development and projections of future change impacts;
  • Consider scientific requirements for monitoring and management, specifically for input to CCAMLR, SCAR and IPCC.

Session Programme

Oral Presentations

Wednesday 25 June, 16:00-17:30 Parallel session 6 (E2.1)

Chair: Eugene Murphy

Time  ID Presenter Title
16:00-16:15 E2.1.O1 Cavanagh, Rachel Scenarios of change in the Southern Ocean
16:15-16:30 E2.1.O2 Voelker, Christoph Scenarios for future physical and lower trophic level changes in the Southern Ocean until the end of the century
16:30-16:45 E2.1.O3 Cabre, Anna A Latitudinally-Banded Phytoplankton Response to 21st Century Climate Change in the Southern Ocean across the CMIP5 Model Suite
16:45-17:00 E2.1.O4 Groeneveld, Jürgen Using individual-based models to explore the potential of Antarctic krill to cope with climate change considering its chronobiology
17:00-17:15 E2.1.O5 Hofmann, Eileen The Effects of Changing Winds and Temperatures on the Oceanography of the Ross Sea in the 21st Century
17:15-17:30 E2.1.O6 Bellerby, Richard Southern ocean ecosystems and ocean acidification

Thursday 26 June, 14:00-15:30 Parallel session 7 (E2.2)

Chair: Andrew Constable

Time  ID Presenter Title
14:00-14:15 E2.2.O1 Hill, Simeon Using existing Southern Ocean ecosystem models to project the impacts of change: capabilities, limitations, and progress required.
14:15-14:30 E2.2.O2 Constable, Andrew Using observations of Southern Ocean ecosystems for managing krill fisheries, marine protected areas and for assessing the likelihood of different ecosystem scenarios in the future.
14:30-14:45 E2.2.O3 Godø, Olav Rune Observing krill dominated ecosystems at scales that resolve key processes - an essential approach to ecosystem assessment and management
14:45-15:00 E2.2.O4 Österblom, Henrik Ecosystem based management of marine systems – examples from the Southern Ocean and elsewhere
15:00-15:30   All ICED Panel Discussion – Challenges for evidence-based management of Southern Ocean ecosystems

Poster Presentations

Wednesday 25 June, 17:30, Poster Session 2

Chair: Nadine Johnston

ID Presenter Title
E2.P1 Hofmann, Eileen Processes Regulating Iron Supply at the Mesoscale (PRISM) Project
E2.P2 Kaufman, Daniel A Glider-based Study of Biogeochemical Variability in the Southern Ross Sea
E2.P3 Silva, Carolina Distribution of the surface chlorophyll concentration in the polar upwelling in the South Atlantic sector of the Southern Ocean
E2.P4 Park, Jisoo Physiological limitation of phytoplankton photosynthesis in the Amundsen Sea, Southern Ocean
E2.P5 Salmon, Elodie NPZD-iron lower trophic level model of the Ross Sea: Processes controlling the seasonal cycle of biological production.
E2.P6 Ryabov, Alexey An ontogenetic krill model
E2.P7 Rackebrandt, Siri A conceptual model to describe the population dynamics of Antarctic krill
E2.P8 Piñones, Andrea Transport and fate of Euphausiid larvae in the Ross Sea
E2.P9 Tarling, Geraint Defining the function of krill swarms from their level of roughness
E2.P10 Roura, Ricardo A Marine Protected Area in the Weddell Sea, Antarctica: A proposal by environmental non-governmental organisations
E2.P11 Williams, Michael Climatic variability in the Ross sea region of Antarctica and its potential influences on marine ecosystems
E2.P12 Johnston, Nadine Rediscovering the Discovery Investigations (1925-1951): Extending our knowledge into the past to understand the future
E2.P13 Holan, Jessica Increased sensitivity to contaminants and risk to sub-Antarctic marine invertebrates under predicted climate change scenarios