Scott Hadley

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Scott Hadley

Ecosystem Modeller

IMAS Taroona, Off-Campus

03 62268380 (phone)

Dr Scott Hadley is an ecosystem modeller investigating the interaction between aquaculture and the environment. He works with Fisheries and Aquaculture (IMAS) with the research  team headed by Associate Professor Catriona Macleod.


Dr Hadley completed his PhD in 2015. He worked on quantifying the capacity of Integrated multi-trophic aquaculture to mitigate the impacts of nutrient loading from salmon aquaculture. This research was undertaken as part of the Quantitative Marine Science (QMS) program, a joint initiative between CSIRO and IMAS. Since completing the PhD, Dr Hadley has been working with Fisheries and Aquaculture (IMAS) to answer more question involving the interaction between aquaculture and the environment.

Before starting his PhD, Dr. Hadley worked as a system administrator for the Department of Defence. While in that position, he completed a Masters by Research in Mathematics (Dynamical Systems Theory) where he looked at investigating the behaviour of a model of southern ocean food web.

Career summary


DegreeThesis TitleUniversityCountryDate of Award

Farming macroalgae to mitigate coastal nutrification from finfish aquaculture: a modelling study

University of TasmaniaAustralia2015
MScDynamical systems analysis of 5D trophic food web in the southern oceanUniversity of TasmaniaAustralia2009


Professional practice

IMAS  Committee for Inclusion, Diversity and Equity (IDE), Age-friendly workplace working group.

View more on Mr Scott Hadley in WARP


    Develop understanding of the dispersal of waste from salmon aquaculture at local scale.

    Development of sustainable aquaculture

    Modelling the potential of seaweed to offset the impact of salmon aquaculture in coastal environment.

Research Themes

Scott’s work aligns with several of the universities research themes. He is currently investigating the impacts of open cage salmon aquaculture on nearby reefs as well as benthic impacts beneath the cages. Coastal marine ecosystems can be very sensitive to nutrient loading. This study aims to assess the effectiveness of the methods currently used to determine impacts form salmon aquaculture. The research aims to development valid and quantifiable methods for assessing aquaculture impacts and also valid monitoring procedures that capture the ecosystem changes on appropriates temporal and spatial scales.

It is hoped this will lead to a more sustainable aquaculture industry as well as provide information on the functioning of natural marine systems.

Scott modelling approach uses the data gathered by FAC (Fisheries and Aquaculture) to make decisions which help managers and researchers make decisions on operational and strategic matters.

Fields of Research

  • Biological Mathematics (010202)
  • Aquaculture (070401)
  • Chemical Oceanography (040502)
  • Marine and Estuarine Ecology (incl. Marine Ichthyology) (060205)

Research Objectives

  • Expanding Knowledge in the Environmental Sciences (970105)
  • Climate Change Mitigation Strategies (960302)
  • Ecosystem Assessment and Management of Coastal and Estuarine Environments (960503)
  • Aquaculture Fin Fish (excl. Tuna) (830102)
  • Ecosystem Assessment and Management of Marine Environments (960507)


Scott published two papers form his Masters research on dynamical systems theory. A further three papers were published from his PhD (with another currently in review) which finished two years ago. During his PhD he also collaborated on another modelling paper. All his work to date is either on model analysis or biogeochemical modelling of coastal systems. His current project is due to finish next year and will furnish further publications based around modelling waste dispersion and subsequent ecosystem interaction.

Total publications


Journal Article

(7 outputs)
2018Hadley S, Wild-Allen K, Johnson C, Macleod C, 'Investigation of broad scale implementation of integrated multitrophic aquaculture using a 3D model of an estuary', Marine Pollution Bulletin, 133 pp. 448-459. ISSN 0025-326X (2018) [Refereed Article]

DOI: 10.1016/j.marpolbul.2018.05.045 [eCite] [Details]

Citations: Scopus - 1

Co-authors: Johnson C; Macleod C


2016Hadley S, Jones E, Johnson C, Wild-Allen K, Macleod C, 'A Bayesian inference approach to account for multiple sources of uncertainty in a macroalgae based integrated multi-trophic aquaculture model', Environmental Modelling and Software, 78 pp. 120-133. ISSN 1364-8152 (2016) [Refereed Article]

DOI: 10.1016/j.envsoft.2015.12.020 [eCite] [Details]

Citations: Scopus - 3Web of Science - 3

Co-authors: Johnson C; Macleod C


2016Hadley S, Wild-Allen K, Johnson C, MacLeod C, 'Quantification of the impacts of finfish aquaculture and bioremediation capacity of integrated multi-trophic aquaculture using a 3D estuary model', Journal of Applied Phycology, 28, (3) pp. 1875-1889. ISSN 0921-8971 (2016) [Refereed Article]

DOI: 10.1007/s10811-015-0714-2 [eCite] [Details]

Citations: Scopus - 5Web of Science - 5

Co-authors: Johnson C; MacLeod C


2016Mongin M, Baird ME, Hadley S, Lenton A, 'Optimising reef-scale CO2 removal by seaweed to buffer ocean acidification', Environmental Research Letters, 11, (3) Article 034023. ISSN 1748-9326 (2016) [Refereed Article]

DOI: 10.1088/1748-9326/11/3/034023 [eCite] [Details]

Citations: Scopus - 5Web of Science - 3

Co-authors: Mongin M; Lenton A


2015Hadley SA, Wild-Allen K, Johnson CR, Macleod C, 'Modeling macroalgae growth and nutrient dynamics for integrated multi-trophic aquaculture', Journal of Applied Phycology, 27, (2) pp. 901-916. ISSN 0921-8971 (2015) [Refereed Article]

DOI: 10.1007/s10811-014-0370-y [eCite] [Details]

Citations: Scopus - 11Web of Science - 9

Co-authors: Johnson CR; Macleod C


2009Hadley S, Forbes LK, 'Dynamical systems analysis of a five-dimensional trophic food web model in the southern oceans', Journal of Applied Mathematics, 2009, (Article ID 575047) pp. 1-17. ISSN 1110-757X (2009) [Refereed Article]

DOI: 10.1155/2009/575047 [eCite] [Details]

Citations: Scopus - 6Web of Science - 3

Co-authors: Forbes LK


2009Hadley SA, Forbes LK, 'Dynamical systems analysis of a two-level trophic food web in the Southern Ocean', ANZIAM Journal, 50 pp. E24-E55. ISSN 1446-8735 (2009) [Refereed Article]

DOI: 10.21914/anziamj.v50i0.1111 [eCite] [Details]

Co-authors: Forbes LK


Conference Publication

(1 outputs)
2013Hadley SA, Wild-Allen K, MacLeod C, Johnson CR, 'Alternative strategies for sustainable environmental management of nutrient loads in aquaculture', World Aquaculture Society Conference, February, 2013, Nashville, Tennessee, USA, pp. 1. (2013) [Conference Extract]

[eCite] [Details]

Co-authors: MacLeod C; Johnson CR

Contract Report, Consultant's Report

(1 outputs)
2017Condie S, Gorton R, Hadley SA, Little R, MacLeod C, et al., 'INFORMD2: risk-based tools supporting consultation, planning and adaptive management for aquaculture and other multiple-uses of the coastal waters of southern Tasmania', Fisheries Research and Development Corporation, Hobart, Tasmania, 2012/024 (2017) [Contract Report]

[eCite] [Details]

Co-authors: Little R; MacLeod C; Ogier EM; Proctor WL; Ross J


(1 outputs)
2009Hadley SA, 'Dynamical systems analysis of a two level trophic food web in the Southern Oceans' (2009) [Masters Research]

[eCite] [Details]

Other Public Output

(3 outputs)
2018Hadley SA, MacLeod C, Ross J, 'Nutrient Dispersion Modelling for Proposed Marine Finfish Farming Zones in Storm Bay', DPIPWE, Hobart, Tasmania (2018) [Government or Industry Research]

[eCite] [Details]

Co-authors: MacLeod C; Ross J

2018Hadley SA, MacLeod C, Ross J, 'Nutrient Dispersion Modelling for Proposed Marine Finfish Farming Zones in Storm Bay: Addendum - 20k and 30k tonne scenarios', DPIPWE, Hobart, Tasmania (2018) [Government or Industry Research]

[eCite] [Details]

Co-authors: MacLeod C; Ross J

2018Hadley SA, MacLeod C, Ross J, 'A summary of the improvements in the latest version of DEPOMOD (NewDEPOMOD) as compared with earlier versions (DEPOMOD/AutoDEPOMOD)', DPIPWE, Hobart, Tasmania (2018) [Government or Industry Research]

[eCite] [Details]

Co-authors: MacLeod C; Ross J

Research Supervision




PhDDeveloping a Process Model for Recirculating Aquaculture System (RAS) Technology Incorporating a Fugacity Model to Track Waste Signal2018