Marcus Sheaves is a full time Professor at James Cook University, where he is Associate Dean Higher Degree Research Training, Deputy Director of JCU’s Centre for Tropical Water & Aquatic Ecosystem Research (TropWATER) and leader of TropWATER’s Coastal and Estuarine Ecology Theme. Marcus also leads JCU’s Estuary and Coastal Wetland Ecology Research Group, which currently comprises 4 staff, 3 Postdoctoral Fellows, 7 PhD, 1 MSc and 1 honours student.

Marcus teaches undergraduate and postgraduate subjects in estuarine and wetland ecology, and advanced biostatistics, and acts as a consultant biostatistician for staff and students.

Marcus has been researching the ecology of tropical estuaries, coastal wetlands and mangrove systems since the early 1990s. He has published widely in areas on interest with 59 peer reviewed publications since 2006. Marcus leads a number of substantial research projects within Australia and across the Asia-Pacific region. He has extensive collaborations with research and management organisations both within Australia and internationally.

  • EV3201: Managing Coastal and Marine Environments (Level 3; TSV)
  • EV5701: Managing Coastal and Marine Environments (Level 5; TSV)
  • EV5961: Ecosystem Dynamics - Ridge to Reef (Level 5; TSV)
  • MB3200: Marine Conservation Biology (Level 3; TSV)
  • MB3270: Coastal, Estuarine and Mangrove Ecosystems (Level 3; TSV)
  • MB5004: Marine Conservation Biology (Level 5; TSV)
  • MB5270: Coastal, Estuarine and Mangrove Ecosystems (Level 5; TSV)
  • MB5310: Marine Reserves as Fisheries Management Tools (Level 5; TSV)
  • The ecology of estuaries and coastal wetland ecosystems, in particular in: nursery ground function, animal habitat relationships, the role of ecosystem mosaics and connectivity
  • Ecosystem repair and rejuvenation, contributions to food security and the effects of climate change
  • Fisheries, food web, seascape and spatial ecology
  • 2006 - Best Paper of the Year; 'Coral Reefs' - Journal of the International Society of Reef Studies
  • 2009 - Australian Academy of Sciences Study Fellowship
  • 2012 - Primary Postgraduate Advisor of the Year, James Cook University

These are the most recent publications associated with this author. To see a detailed profile of all publications stored at JCU, visit ResearchOnline@JCU. Hover over Altmetrics badges to see social impact.

Other research outputs

ResearchOnline@JCU stores 117+ research outputs authored by Prof Marcus Sheaves from 1992 onwards.

Current Funding

Current and recent Research Funding to JCU is shown by funding source and project.

Wet Tropics Management Authority - Student Research Grant Scheme

Dissolved oxygen as a constraint for fish utilising mangrove forests.

Indicative Funding
This project focuses on understanding how dissolved oxygen (DO) impacts mangrove fish utilisation. In heavily vegetated habitats like mangroves, DO undergoes complex changes brought about by biogeochemical demand. The extent of DO depletion depends on many environmental parameters such as tide, time or day or human activities. Substantial DO depletion could limit the value of mangroves as habitats for fish. Consequently, I aim to: (i) develop an understanding of DO dynamics in mangrove forests; (ii) identify environmental parameters that drive these fluctuations; (iii) investigate how depressed DO impacts fish assemblages and behaviour; and (iv) establish DO thresholds for five fish species occupying mangroves.
Alexia Dubuc, Marcus Sheaves, Nathan Waltham and Ronnie Baker (College of Science & Engineering and TropWATER)
Mangrove; Dissolved Oxygen; Fish; Australia; New Caledonia; Hypoxia

Australian Research Council - Linkage - Projects

Ecological valuation tools to protect seagrass during coastal development

Indicative Funding
$490,000 over 4 years, in partnership with the Gladstone Ports Corporation Ltd ($450,000 over 3 yrs)
Seagrasses provide ecosystem services (fisheries, nutrient cycling, primary productivity) worth trillions of dollars, but this capacity is threatened by coastal development. In Australia, port developments are considered a major threat to seagrass ecosystems, but resource managers lack accurate information about their potential impacts and mitigation measures. Focussing on differences between shallow and deep seagrasses within the Great Barrier Reef, this project seeks to develop a world-first spatial valuation tool that will allow resource managers and policy makers to minimise impact of port development on seagrass ecosystems, thereby ensuring that Australia?s seagrasses continue to provide ecosystem services essential to our well-being.
Michael Rasheed, Rod Connolly, Mark Hamann, Peter Macreadie, Helene Marsh and Marcus Sheaves in collaboration with Megan Ellis (TropWATER, Griffith University, College of Science & Engineering, University of Technology, Sydney and Gladstone Ports Corporation)
Seagrass; Coastal Development; tropic fate; Ecosystem Services; ports

QLD Department of Agriculture and Fisheries - Tenders

Identification and Restoration of Intertidal Fish Nursery Habitat in the Baffle Catchment

Indicative Funding
$266,456 over 2 years
This project aims to identify high intertidal fish nursery habitat pools in the Baffle Drainage Basin (BDB), assess their value to fish, evaluate the current state of their functionality, prioritise pools for restoration and identify viable restoration solutions. By involving local stakeholders, local government, regional NRM and State Government scientists and managers, a network of users will gain an understanding of how these habitats function and can be restored, based upon this baseline research.
Marcus Sheaves, Nathan Waltham, Martha Brians, Maria Zann and Janine Sheaves (College of Science & Engineering and TropWATER)
Estuary; Intertidal; Salt Marsh; Wetlands; Mangroves

Sea World Research and Rescue Foundation Inc - Research Grant

Roles of batoids in coastal and reef ecosystems: impacts on predator and prey populations and the potential for energy transfer to adjacent subtidal and offshore communities

Indicative Funding
This study will determine 1) the species composition, abundance, and biomass of batoid fauna in coastal sandflats and reef habitats, 2) the proportion of time different batoid fauna spend in intertidal versus subtidal zones, 3) the ecological importance of batoid utilization of intertidal habitats, and 4) how the above differ between sandflat and reef habitats. Results will contribute to understanding batoid community structure in different habitats and aid in identifying preferred habitat types throughout the year. In addition, understanding the ecological role of batoids in different habitats will stress the need for conservation of these species and development of more effective management strategies to mitigate catches in commercial fisheries.
Katya Abrantes, Adam Barnett and Marcus Sheaves in collaboration with Kevin Crook (College of Science & Engineering)
Batoids; Acoustic Telemetry; Movement; Stable Iisotopes; Foodweb ecology; Abundance

ACIAR - Research Grant

FIS/2013/015 Sustainable Management of Sport Fisheries for Communities in Papua New Guinea

Indicative Funding
$688,131 over 5 years
The project aims to conduct the ecological, fisheries, social, business and tourism research needed to develop a viable local-based sport fishery for Black Bass in Papua New Guinea that can provide alternative livelihoods for local people.
Marcus Sheaves, Jacob Wani, Ronnie Baker, Amy Diedrich and Murray Prideaux in collaboration with Adam Barnett, Dean Jerry, Alf Kuilboer, Gianna Moscardo, Anne Swinbourne, Leban Gisawa, Peter Vincent, Jason Yip, Riccard Reimann, Ian Middleton, Katya Abrantes and Adam Barnett (College of Science & Engineering, National Fisheries Authority, Papua New Guinea, College of Business, Law & Governance, College of Healthcare Sciences, Papua New Guinea Tourism Promotion Authority, National Department of Health (PNG), Baia Sport Fishing and Ok Tedi Development Foundation)
Fish; Ecosystems; Sport Fishing; Estuary; Livelihoods; Food Security

Wet Tropics Management Authority - Student Research Grant Scheme

Identifying Critical Fish Habitat in the Wet Tropics: Threatened Nursery Components

Indicative Funding
Fish may use several habitats during their lives. Through video surveys, I seek to determine the key habitat use patterns of fish across a range of coastal contexts, such as rivers, estuaries, islands, beaches and bays ? all of which contain a mix of similar habitats (logs, rocks, flats, submerged vegetation and riparian vegetation). This will allow me to create and compare models of how fish use their aquatic landscapes, and how this differs according to regional drivers of ecological context, such as tidal range and rainfall. Identifying which habitats are critical where will help managers to prioritize actions.
Michael Bradley and Marcus Sheaves (College of Science & Engineering)
Fisheries; Seascape; Context; Habitat; Mosaic Leatherjacket; Nursery

WV Scott Charitable Trust - Research Grant

The Infinite Turtle Project

Indicative Funding
There is currently no consolidated program to provide the resources and training to turtle welfare volunteer groups and indigenous rangers along the Queensland coast. The proposed 'Infinite Turtle Project' will (i) establish an online forum for groups to register for information; (ii) provide online training material for turtle rescue response, nesting monitoring, and hatchling monitoring; and (iii) provide feedback and linkages with appropriate local government and wildlife carers to build better and ongoing communication. This program will be established over one year but will have long term benefits of increased sea turtle success and continual data exchange and training.
Martha Brians and Marcus Sheaves (College of Science & Engineering)
Sea Turtles; Welfare; Monitoring; Communication

Foundation for National Parks & Wildlife - Foundation Conservation Grants

Insulator Creek Wetland Rehabilitation

Indicative Funding
This project aims to restore 40 hectares of the ecological values of an 'of concern' remnant wetland which contains Mahogany Glider habitat and is located on Nywaigi country in Hinchinbrook Shire. This project is already underway but has insufficient funding for proper scientific assessments. Currently there are 4 bio monitoring trips per year being conducted in-kind. This funding provides the capacity to engage with interns and students at the university and support their travel to the site for in-depth assessments and monitoring of the affected area and species, therefore providing valuable insight that is needed to ensure the success of the project.
Martha Brians and Marcus Sheaves (College of Science & Engineering)
Wetlands; Rehabilitation; Mahogany Glider (Petaurus gracilis); Habitat

Australian Research Council - Linkage - Infrastructure (L-IEF)

Australian Acoustic Observatory: A Network to Monitor Biodiversity

Indicative Funding
Acoustic sensing is transforming environmental science by recording vocal species 24 x 7, providing data of unparalleled spatial and temporal resolution for ecosystem monitoring and research. This is particularly relevant to Australia's fragile and mega-diverse environment and Australia has leading research expertise in this emerging field. The proposed observatory will be the world's largest terrestrial acoustic sensor network comprising 450 listening stations deployed across Australia. Funds will purchase autonomous sound recorders and online storage and processing hardware. Data will be freely available to all online, enabling new science in understanding ecosystems, long-term environmental change, data visualisation and acoustic science.
Paul Roe, David Watson, Richard Fuller, Stuart Parsons, Tomasc Bednarz, Margot Brereton, Lin Schwarzkopf, Dale Nimmo, Berndt Janse van Rensburg, Martine Maron, Marcus Sheaves, Paul McDonald and Gary Luck (Queensland University of Technology, Charles Sturt University, The University of Queensland, College of Science & Engineering and The University of New England)

AIMS@JCU - Scholarship

Modelling the net growth of coral reefs under climate change: the neglected role of bio-eroding sponges

Indicative Funding
$20,000 over 4 years
The project will investigate the hypothesis that under climate change, sponges will erode coral reefs at a faster rate than corals can form reefs. If true, sponge bioerosion may make it more difficult for corals to sustain reefs under climate change. The project will use controlled experiments to determine how sponge reproduction and fitness are affected by predicted climate change conditions. These data will then be used to develop models to predict sponge fitness, sponge-coral competition, reef erosion patterns, and overall reef resilience under climate change scenarios.
Blake Ramsby, Nicole Webster, Mia Hoogenboom, Marcus Sheaves and Stephen Whalan (College of Science & Engineering, Australian Institute of Marine Science and Southern Cross University)
Cliona sp. (Clionaidae); Bioerosion; Sponge

WV Scott Charitable Trust - Research Grant

Mapping green sea turtle coastal impact hotspots; the key to conservation in an increasingly impacted environment

Indicative Funding
There is currently no consolidated ranking of high risk turtle habitats along the Queensland coast. The proposed project will conduct a state-wide coastal survey, including: (i) collating turtle habitat and coastal development literature; (ii) ground truth surveys of identified focus sites by shallow water kayak survey for habitat identification and abundance verification; (iii) an evaluation of coastal development and urbanisation projects; and (iv) Geographic Information Systems (GIS) analysis of habitat and development to produce verified map documents. All sampling will be by passive observation, therefore non-invasive to the green sea turtle species.
Marcus Sheaves in collaboration with Martha Brians (College of Science & Engineering)
Conservation; Mapping; Green Sea Turtle; threats; Vulnerability

Office for Learning and Teaching - Enhancing the Training of Mathematics and Science Teachers Program

Step Up! Transforming mathematics and science pre-service secondary teacher education in Queensland

Indicative Funding
$122,720 over 3 years (administered by Queensland University of Technology)
The overall aim of this project is to transform the nature and delivery of mathematics and science pre-service secondary teacher education in Queensland. The project objectives involve a comprehensive reworking of recruitment strategies, contemporary delivery methods and comprehensive curriculum guides, all brokered through a strong provider network.
Hilary Whitehouse, Phil Turner, Brian Lewthwaite, Clifford Jackson, Marcus Sheaves, Steve Turton, Louisa Tomas Engel and Tanya Doyle (College of Arts, Society & Education and College of Science & Engineering)
Pre-service Teacher Education; Science Education; Mathematics Education

Advisory Accreditation: I can be on your Advisory Panel as a Primary or Secondary Advisor.

These Higher Degree Research projects are either current or by students who have completed their studies within the past 5 years at JCU. Linked titles show theses available within ResearchOnline@JCU.

  • Mitigating and Adapting to Climate Change in the Tropics: Livelihood Sustainability of North Queensland Commercial Fishers (PhD , Secondary Advisor)
  • Investigating the ability of a cognitive/affective model of choice behaviour on promoting pro environmental recreational fishing behaviours. (PhD , Secondary Advisor)
  • Understanding barriers and opportunities for sustained benefits from inland pond aquaculture for Solomon Islands households (Masters , Advsor Mentor)
  • Measuring Productivity of Australian Tropical Estuaries Using Standard Stock Analysis (Masters , Primary Advisor)
  • The Role of Seagrasses and Their Value as a Food Source for Fish and Mesograzers: Investigating the Differences Between Deep-Water and Shallo Seagrass Beds (PhD , Advsor Mentor)
  • The Role of Context in the Habitat and Seascape Relationships of Coastal Fishes (PhD , Primary Advisor)
  • The Role of Birds in Coastal Ecosystem Connectivity. (PhD , Primary Advisor)
  • Understanding the Seasonal Variation of Ecosystem Functioning on Benthic Assesmblagfe of Tide Pools in Wetlands, (PhD , Primary Advisor)
  • The Effects of a Changing Marine Environment on the Bioeroding Sponge Cliona orientalis (PhD , Secondary Advisor)
  • Taxonomic and Functional Diversity of Viruses in Marine Sponges (PhD , Secondary Advisor)
  • Habitat Configuration and Utility of Tropical Estuaries Exposed to Different Extents of Human Development (PhD , Secondary Advisor)
  • Roles of batoids in coastal and reef ecosystems: impacts on prey and predator populations and the potential for energy transfer to adjacent subtidal and offshore communities (PhD , Secondary Advisor)
  • Dissolved Oxygen as a Constraint for the Structure of Mangrove Fish Ossemblages Assemblages and Their Patterns of Mangrove Utilisation: A Comparison Between Natural and Disturbed Mangrove Ecosystems Through the Australian and Caledonian Coastlines. (PhD , Primary Advisor)
  • Population structure and connectivity of small-bodied benthic shark species: Comparing patterns across the Pacific, a case study of the genus Heterodontus (PhD , Primary Advisor)

The map shows research collaborations by institution from the past 7 years.
Note: Map points are indicative of the countries or states that institutions are associated with.

  • 5+ collaborations
  • 4 collaborations
  • 3 collaborations
  • 2 collaborations
  • 1 collaboration
  • Indicates the Tropics (Torrid Zone)

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  • 23.124, Marine And Tropical Biology 1 (Townsville campus)
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