I am a seagrass and coastal ecosystems ecologist. My research facilitates the protection, conservation, biological diversity, rehabilitation, management and sustainable development of seagrass resources. I am particularly interested in the status and condition of seagrass resources across a range of scales (from local to global), understanding the role of disturbance, determining thresholds of concern and investigating resilience of seagrass ecosystems. I am also interested in the relationship between seagrass and associated fauna, the impacts of declining water quality and climate change.

Experience

• 1998 to 2012 - Principal Scientist, QLD DAFF (Cairns)
• 1992 to 1998 - Biologist, QLD DPI&F (Cairns)
• 1990 to 1992 - Technical Officer, QLD DPI&F (Cairns)
• 1986 to 1989 - Research Assistant, James Cook University (Townsville)

Research Disciplines

• Environmental management (4104)

Socio-Economic Objectives

• Marine systems and management (1805)

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.

Journal Articles

• Carter A, McKenna S, Rasheed M, Taylor H, van de Wetering C, Chartrand K, Reason C, Collier C, Shepherd L, Mellors J, McKenzie L, Duke N, Roelofs A, Smit N, Groom R, Barrett D, Evans S, Pitcher R, Murphy N, Carlisle M, David M, Lui S, Torres Strait Indigenous Rangers and Coles R (in press) Seagrass spatial data synthesis from north-east Australia, Torres Strait and Gulf of Carpentaria, 1983 to 2022. Limnology and Oceanography Letters,
• Langlois L, Collier C and McKenzie L (2023) Subtidal seagrass detector: development of a deep learning seagrass detection and classification model for seagrass presence and density in diverse habitats from underwater photoquadrats. Frontiers in Marine Science, 10.
• Risandi J, Rifai H, Lukman K, Sondak C, Hernawan U, Quevedo J, Hidayat R, Ambo-Rappe R, Lanuru M, McKenzie L, Kohsaka R and Nadaoka K (2023) Hydrodynamics across seagrass meadows and its impacts on Indonesian coastal ecosystems: A review. Frontiers in Earth Science, 11.
• McKenzie L, Langlois L and Roelfsema C (2022) Improving Approaches to Mapping Seagrass within the Great Barrier Reef: From Field to Spaceborne Earth Observation. Remote Sensing, 14 (11).
• Carter A, McKenna S, Rasheed M, Collier C, McKenzie L, Pitcher R and Coles R (2021) Synthesizing 35?years of seagrass spatial data from the Great Barrier Reef World Heritage Area, Queensland, Australia. Limnology and Oceanography Letters, 6 (4). pp. 216-226
• Collier C, Langlois L, McMahon K, Udy J, Rasheed M, Lawrence E, Carter A, Fraser M and McKenzie L (2021) What lies beneath: predicting seagrass below-ground biomass from above-ground biomass, environmental conditions and seagrass community composition. Ecological Indicators, 121.
• Dalby O, Sinha I, Unsworth R, McKenzie L, Jones B and Cullen-Unsworth L (2021) Citizen science driven big data collection requires improved and inclusive societal engagement. Frontiers in Marine Science, 8.
• McKenzie L, Yoshida R, Aini J, Andrefouet S, Colin P, Cullen-Unsworth L, Hughes A, Payri C, Rota M, Shaw C, Skelton P, Tsuda R, Vuki V and Unsworth R (2021) Seagrass ecosystems of the Pacific Island countries and territories: a global bright spot. Marine Pollution Bulletin, 167.
• McKenzie L, Yoshida R, Aini J, Andrefouet S, Colin P, Cullen-Unsworth L, Hughes A, Payri C, Rota M, Shaw C, Tsuda R, Vuki V and Unsworth R (2021) Seagrass ecosystem contributions to people's quality of life in the Pacific Island Countries and Territories. Marine Pollution Bulletin, 167.
• Adams M, Koh E, Vilas M, Collier C, Lambert V, Sisson S, Quiroz M, McDonald-Madden E, McKenzie L and O'Brien K (2020) Predicting seagrass decline due to cumulative stressors. Environmental Modelling & Software, 130.
• Collier C, Carter A, Rasheed M, McKenzie L, Udy J, Coles R, Brodie J, Waycott M, O’Brien K, Saunders M, Adams M, Martin K, Honchin C, Petus C and Lawrence E (2020) An evidence-based approach for setting desired state in a complex Great Barrier Reef seagrass ecosystem: a case study from Cleveland Bay. Environmental and Sustainability Indicators, 7.
• McKenzie L and Yoshida R (2020) Over a decade monitoring Fiji's seagrass condition demonstrates resilience to anthropogenic pressures and extreme climate events. Marine Pollution Bulletin, 160.

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ResearchOnline@JCU stores 63+ research outputs authored by Mr Len McKenzie from 2007 onwards.

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

The map shows research collaborations by institution from the past 7 years.
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