Jonathan Marshall
DES (Queensland)

Jon Marshall in water - Jon profile picture

Dr Jonathan Marshall

Principal Scientist (Aquatic Ecosystems), Water Planning Ecology, Queensland Department of Environment and Science (DES)

See Jon’s full research profile here.

E: [email protected]

Research outputs linked to policy change and decision-making

  • Dr Marshall had a lead role in developing the eco-hydrological risk assessment approach to developing and evaluating water resource allocation options in Queensland. This approach has contributed to the development and/or review of all Water Plans in Queensland and made major advances to the sustainable management of these resources.  This allows consumptive use to support society and ensures ecosystems are protected. (see Mcgregor et al reference)
  • Dr Marshall had a lead role in developing the cause-effect framework that underpins environmental risk assessments and conditions assessments for rivers in Queensland. This approach has been widely applied throughout Queensland at a range of spatial scales and has identified the major stressors effecting river health in each region. (see Marshall and Negus reference)
  • He also had a lead role in applying ecological risk assessment techniques to evaluate drought relief options to take substantially increased volumes of water from the North Stradbroke Island regional aquifer. This identified numerous groundwater dependent ecosystems that would be threatened by increased take and defined the values that they support and which would be damaged or lost by the proposal.  This assessment altered Government policy and prevented the potential harm from occurring.
  • NESP Northern Hub projects: Defining metrics of success for feral animal management in northern Australia and Environmental water needs for the Mitchell River.

Current academic employment and positions

  • Principal Scientist (Aquatic Ecosystems), Queensland Department of Environment and Science (2006-present)
  • Adjunct Research Fellow, Australian Rivers Institute, Griffith University (2009-present)

Highest Qualification

  • 2002, PhD Environmental Sciences, Griffith University, Brisbane

Major Prizes, Medals and Honours

  • 2018, DES Excellence Awards – research into the ecology and hydrology of North Stradbroke Island wetlands
  • 2015, DSITI Science Division Assistant Director General Overall Excellence team award “Unleash Potential – water planning science plan
  • 2000, NRMW Achievement Award for Natural Resource Management, “Links between river flow and ecological condition in Queensland

Roles on government or regional organisation committees

  • ESTAG for MDBA northern basin review – identified the science needs to make policy decisions about th sustainable level of water take for the northern MDB. Oversight of the resulting science projects. Assist MDBA with interpretation and adaptation into policy.  Outcome was lowering of water recovery target and redirecting funds into complementary measures such as fishways to provide greater environmental beefit
  • SAG for National Carp Control Plan – Providing scientific advice on the proposal for biocontrol of invasive carp using a herpes virus. Dr Marshall’s role was to counter a strong tome of advocacy with proper consideration of risks and uncertainties throughout the proposal. He appeared before an Australian Senate Committee hearing into the NCCP to outline these risks and uncertainties, and contributed to several scientific papers on the matter, including leading a letter published in Science (see Marshall et al Science reference)
  • Murray-Darling Basin Native Fish Recovery and Management Strategy steering committee – Dr Marshall played an active role in scoping the new MDB native fish recovery strategy which is in the process of ratification by government. It aims to improve the condition of the basin’s native fish by identifying key threats and managing them.
  • Dr Marshall has been on the leadership team of federally-funded, national projects including:
    • Queensland Government representative on the Murray-Darling Basin Native Fish Recovery and Management Strategy steering committee.
    • Queensland Government representative on the Scientific Advisory Group of the National Carp Control Plan to provide technical advice concerning the potential use of carp herpesvirus as a biological control agent for invasive carp in Australian rivers.
    • Queensland Government representative on the BTAG to provide technical advice on waterbird related monitoring and evaluation projects for the Murray Darling Basin Plan.
    • Intergovernmental Working Group for the Murray Darling Basin Plan Northern Basin Review.
    • Environmental Science Technical Advisory Group for the Murray Darling Basin Plan Northern Basin Review.
    • Steering Committee for ‘Flows and aquatic plants: an historical and experimental approach’, led by Professor Barbara Downes, funded by Land and Water Australia.
    • Steering Committee for ‘Environmental Flow Bayesian Network Decision-Making Framework’, led by Professor Barry Hart, funded by Land and Water Australia.
    • Steering Committee for ‘Ecohydrological regionalisation of Australia: A tool for management and science’, led by Dr Brad Pusey,, funded by Land and Water Australia.
    • Steering Committee for ‘Hydro-ecological Relationships and Thresholds to Inform Environmental Flow Management and River Restoration’, led by Professor Angela Arthington,, funded by the National Water Commission.

Links with non-government groups or networks

  • Member of the eWater Cooperative Research Centre
  • Member of Australian Freshwater Sciences Society (formerly Australian Society for Limnology)
  • Member of international research consortium ‘1000IRES’ to foster global research into the functioning of intermittent rivers and ephemeral streams

For details of Jon’s publications see his Google Scholar Citations page: https://tinyurl.com/google-scholar-JCM

My Projects

Current projectCompleted project
NESP, 2015-2021NERP, 2012-2015TRaCK, 2005-present