I have a deep interest in coastal landscape ecology and processes, in particular, urban ecology.  To achieve this requires cooperation and integration from a multidisciplinary team of scientists, managers and policy makers. 

My working career has focused on understanding fisheries sustainability, nutrient processes, landscape restoration, stormwater quality and quantity, geomorphic processes, erosion and sediment control, and contamination.

I believe that every opportunity to restore river systems should be taken, particularly those small actions which are often completed by community members: it is the accumulative impact of these which leads to the greatest achievements and success in protection and restoration. In doing this, I believe it is important to engage local partners (e.g. land holders, industry, indigenous groups, government agencies) to capture their values, build capacity/trust, and encourage community ownership of the project and to share in the success.

Teaching

• MB3270: Coastal, Estuarine and Mangrove Ecosystems (Level 3; TSV)
• MB5270: Coastal, Estuarine and Mangrove Ecosystems (Level 5; TSV)

Interests

Research

• Aquatic ecology

Research Disciplines

• Environmental management (4104)
• Ecology (3103)

Socio-Economic Objectives

• Coastal and estuarine systems and management (1802)
• 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

• Bradley M, Sheaves M and Waltham N (2023) Urban-industrial seascapes can be abundant and dynamic fish habitat. Frontiers in Marine Science, 9.
• Cadier C, Waltham N, Canning A, Fry S and Adame M (in press) Tidal restoration to reduce greenhouse gas emissions from freshwater impounded coastal wetlands. Restoration Ecology,
• Canning A, Smart J, Dyke J, Curwen G, Hasan S and Waltham N (2023) Constructed Wetlands Suitability for Sugarcane Profitability, Freshwater Biodiversity and Ecosystem Services. Environmental Management, 71. pp. 304-320
• Duarte de Paula Costa M, Adame M, Bryant C, Hill J, Kellaway J, Lovelock C, Ola A, Rasheed M, Salinas C, Serrano O, Waltham N, York P, Young M and Macreadie P (2023) Quantifying blue carbon stocks and the role of protected areas to conserve coastal wetlands. Science of the Total Environment, 874.
• Sheaves M, Mattone C, Barnett A, Abrantes K, Bradley M, Sheaves A, Sheaves J and Waltham N (in press) Whale sharks as oceanic nurseries for Golden Trevally. Pacific Conservation Biology, 23004.
• Walker S, Sheaves M and Waltham N (2023) Barriers to Using UAVs in Conservation and Environmental Management: A Systematic Review. Environmental Management, 71. pp. 1052-1064
• Waltham N, Lovelock C and Buelow C (2023) Blue carbon stocks and cycling in tropical tidal marshes facing grazing pressure. Marine Ecology Progress Series, 717. pp. 1-16
• Castle A and Waltham N (2022) Clearance rates achieved by an intertidal oyster, Isognomon ephippium, under different tidal emersion and temperature conditions. Estuarine, Coastal and Shelf Science, 276.
• Claassens L, de Villiers N and Waltham N (2022) How developed is the South African coast? Baseline extent of South Africa’s coastal and estuarine infrastructure. Ocean and Coastal Management, 222.
• Hagger V, Waltham N and Lovelock C (2022) Opportunities for coastal wetland restoration for blue carbon with co-benefits for biodiversity, coastal fisheries, and water quality. Ecosystem Services, 55.
• Jahanbakht M, Xiang W, Waltham N and Rahimiazghadi M (2022) Distributed Deep Learning in the Cloud and Energy-efficient Real-time Image Processing at the Edge for Fish Segmentation in Underwater Videos Segmentation in Underwater Videos. IEEE Access, 10. pp. 117796-117807
• Murray N, Worthington T, Bunting P, Duce S, Hagger V, Lovelock C, Lucas R, Saunders M, Sheaves M, Spalding M, Waltham N and Lyons M (2022) High-resolution mapping of losses and gains of Earth's tidal wetlands. Science, 376. pp. 744-749

More

ResearchOnline@JCU stores 103+ research outputs authored by A/PROF Nathan Waltham from 2012 onwards.

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

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.

Current

• Assessing the movement, habits, and functional roles of nocturnal fishes (PhD , Secondary Advisor)
• Checking the pulse: Dynamic prey resources and trophic relationships in coastal ecosystems. (PhD , Secondary Advisor)
• Material Flow Analysis of Rare Earth Elements and their Sustainable Use in Australia to Reduce Potential Environmental Impacts (PhD , Secondary Advisor)
• The implications of climate changes on the ecology of small pelagic fish (PhD , Secondary Advisor)
• Life history strategies of barramundi (Lates calcarifer) in heavily modified Floodplains (PhD , Secondary Advisor)
• Understanding the services provided by marine built infrastructure and designing them to maximise their utility in tropical seascapes (PhD , Primary Advisor)
• Mangrove restoration trajectories: trends & lessons from Guyana (PhD , Primary Advisor)
• The functional diversity, utilisation and size structure of fish in mangrove habitats in Queensland, Australia (Masters , Primary Advisor)
• Enabling accessible technology for more effective conservations of coastal systems (PhD , Primary Advisor)
• Natural tropical oysters as ecosystem engineers; implications for enhancing ecosystem goods and services (PhD , Primary Advisor)
• Saltmarsh Connectivity in Tropical Seascapes: An Eco-hydrological Perspective (PhD , Primary Advisor)
• The return of fish nursery function in recovered and restored tropical seagrass meadows (PhD , Advisor Mentor)

Completed

• Dissolved oxygen as a constraint for the structure of mangrove fish assemblages and their patterns of mangrove utilisation: a comparison between natural and disturbed mangrove ecosystems through the Austra (2019, PhD , Secondary Advisor)
• Novel approach for the classification of habitats in tropical estuaries exposed to urban and industrial development (2019, PhD , Primary Advisor)

These are the most recent metadata records associated with this researcher. To see a detailed description of all dataset records, visit Research Data Australia.

• Trave, C. (2019) Structural habitat composition of Althaus Creek (Townsville, QLD). James Cook University
• Trave, C. (2019) Structural habitat composition of Ross River (Townsville, QLD). James Cook University
• Trave, C. (2019) Structural habitat composition of Alligator Creek (Townsville, QLD). James Cook University
• Trave, C. (2019) Structural habitat composition of Ross Creek (Townsville, QLD). James Cook University

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.