Dr Troy Gaston

Lecturer

School of Environmental and Life Sciences (Environmental Science and Management)

Career Summary

Qualifications

  • PhD, University of New South Wales
  • Bachelor of Science (Honours), University of New South Wales
  • Graduate Certificate in University Teach & Learn, University of Tasmania

Keywords

  • Bycatch Reduction in Fisheries
  • Ecosystem Health
  • Ecosystem Processes
  • Estuarine Ecology
  • Estuarine, Coastal and Marine Ecology
  • GIS and Remote Sensing
  • Human Disturbance
  • Marine Ecology
  • Oceanography
  • Trophic Interactions

Fields of Research

CodeDescriptionPercentage
050102Ecosystem Function30
050204Environmental Impact Assessment35
050206Environmental Monitoring35

Professional Experience

UON Appointment

DatesTitleOrganisation / Department
1/01/2014 - LecturerUniversity of Newcastle
School of Environmental and Life Sciences
Australia

Academic appointment

DatesTitleOrganisation / Department
1/03/2012 - Lecturer - Environmental ScienceUniversity of Newcastle
School of Environmental and Life Sciences
Australia
1/07/2005 - 1/03/2012Lecturer - Marine Biology and EcologyUniversity of Tasmania
Australia
1/03/2002 - 1/06/2005Postdoctoral ResearcherUniversity of the Sunshine Coast
Australia
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Book (1 outputs)

YearCitationAltmetricsLink
2010Maynard D, Gaston T, Beneath the Tamar. More than Silt, NRM North, Launceston, Tasmania, 123 (2010) [A2]

Journal article (9 outputs)

YearCitationAltmetricsLink
2014Hunt DE, Maynard DL, Gaston TF, 'Tailoring codend mesh size to improve the size selectivity of undifferentiated trawl species', Fisheries Management and Ecology, 21 503-508 (2014) [C1]

Tiger flathead, Neoplatycephalus richardsoni (Castelnau), and sand flathead, Platycephalus bassensis Cuvier, are undifferentiated and managed with a common legal minimum length (LML). The Commonwealth Trawl Sector (CTS) and the Tasmanian Danish-seine fishery (TDSF) use a minimum codend mesh sizes of 90 and 70 mm, respectively. The codend mesh size should be tailored to the LML, which is based on the length of first maturity of females (M50). This study found the length-girth relationship of N. richardsoni and P. bassensis was not significantly different. Using the covered codend method, these two species had 50% retention lengths (L50) of 294 ± 2 and 307 ± 3 mm, in 70-mm and 90-mm codends, respectively. L50 estimates for mesh sizes from this study and others produced a curvilinear relationship: y = 120 ln(x) - 214, with an r2 of 0.8504. The size at maturity (M50) for female N. richardsoni was 337 mm, which is larger than the estimate for female P. bassensis (247 mm). There is a mismatch between the estimates of L50, the estimates of M50 and the LMLs in each fishery, leading to suboptimal exploitation of female Platycephalus. The model produced in this paper recommends a codend mesh size of 98 mm for both fisheries to exploit Platycephalus species sustainably.

DOI10.1111/fme.12099
2014Perraton SC, Blackwell BD, Fischer A, Gaston TF, Meyers GD, 'Systemic barriers to wastewater reuse in Australia: some jurisdictional examples', Australasian Journal of Environmental Management, (2014)

This article describes the regulatory framework and assessment process of urban wastewater reuse in two distinct regions of Australia, the Tamar Valley in northern Tasmania and the Hunter region of New South Wales. Relative similarities are evident between human population, water availability and recent necessity for reuse feasibility assessments. In the Hunter, assessments informed a state government led catchment-scale water security strategy. In Launceston, the need for assessments stems from a condition of the environmental permits for individual facilities. Salient institutional, social, economic and political barriers mire the assessment process for, and success of, wastewater reuse. Distinct legal, policy and procedural differences exist between the two cases. Future reuse guidelines should identify the different drivers for wastewater reuse and avoid studies that meet administratively predetermined selection.

DOI10.1080/14486563.2014.955889
2009Connolly RM, Schlacher TA, Gaston TF, 'Stable isotope evidence for trophic subsidy of coastal benthic fisheries by river discharge plumes off small estuaries', MARINE BIOLOGY RESEARCH, 5 164-171 (2009)
DOI10.1080/17451000802266625Author URL
CitationsScopus - 15Web of Science - 20
2009Schlacher TA, Connolly RM, Skillington AJ, Gaston TF, 'Can export of organic matter from estuaries support zooplankton in nearshore, marine plumes?', AQUATIC ECOLOGY, 43 383-393 (2009)
DOI10.1007/s10452-008-9196-5Author URL
CitationsScopus - 13Web of Science - 19
2008Schlacher TA, Skillington AJ, Connolly RM, Robinson W, Gaston TF, 'Coupling between Marine Plankton and Freshwater Flow in the Plumes off a Small Estuary', INTERNATIONAL REVIEW OF HYDROBIOLOGY, 93 641-658 (2008)
DOI10.1002/iroh.200711050Author URL
CitationsScopus - 8Web of Science - 8
2006Gaston TF, Schlacher TA, Connolly RM, 'Flood discharges of a small river into open coastal waters: Plume traits and material fate', ESTUARINE COASTAL AND SHELF SCIENCE, 69 4-9 (2006)
DOI10.1016/j.ecss.2006.03.015Author URL
CitationsScopus - 24Web of Science - 25
2005Schlacher TA, Liddell B, Gaston TF, Schlacher-Hoenlinger M, 'Fish track wastewater pollution to estuaries', OECOLOGIA, 144 570-584 (2005)
DOI10.1007/s00442-005-0041-4Author URL
CitationsScopus - 50Web of Science - 51
2004Gaston TF, Suthers IM, 'Spatial variation in delta C-13 and delta N-15 of liver, muscle and bone in a rocky reef planktivorous fish: the relative contribution of sewage', JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, 304 17-33 (2004)
DOI10.1016/j.jembe.2003.11.022Author URL
CitationsScopus - 46Web of Science - 45
2004Gaston TF, Kostoglidis A, Suthers IM, 'The C-13, N-15 and S-34 signatures of a rocky reef planktivorous fish indicate different coastal discharges of sewage', MARINE AND FRESHWATER RESEARCH, 55 689-699 (2004)
DOI10.1071/MF03142Author URL
CitationsScopus - 16Web of Science - 18
Show 6 more journal articles

Conference (1 outputs)

YearCitationAltmetricsLink
2014Sadeqzadeh E, Vuong QV, Goldsmith CD, Nguyen VT, Bhuyan DJ, Trung TD, et al., 'A NATURAL PRODUCT DRUG DISCOVERY PIPELINE FOR NOVEL PANCREATIC CANCER THERAPIES: A NEW CANCER RESEARCH HUB FOR THE HUNTER REGION OF NSW', ASIA-PACIFIC JOURNAL OF CLINICAL ONCOLOGY (2014) [E3]
Author URL
Co-authorsVanquan Vuong, Judith Weidenhofer, Michael Bowyer, C Scarlett, Natalie Moltschaniwskyj, Anita Chalmers, Rick Thorne
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Grants and Funding

Summary

Number of grants16
Total funding$194,704

Click on a grant title below to expand the full details for that specific grant.


20153 grants / $23,390

Beach macrofauna as an indicator of anthropogenic derived nutrients in the Hunter Catchment$10,000

Funding body: Water Research Australia

Funding bodyWater Research Australia
Project TeamDoctor Troy Gaston, Mr Angus Fanning
SchemePostgraduate Scholarships
RoleLead
Funding Start2015
Funding Finish2015
GNoG1401315
Type Of FundingDonation - Aust Non Government
Category3AFD
UONY

Efficacy of sanctuary zones in NSW estuaries$9,500

Funding body: NSW Department of Primary Industries

Funding bodyNSW Department of Primary Industries
Project TeamDoctor Troy Gaston, Associate Professor Natalie Moltschaniwskyj, Mr David Harasti
SchemeResearch Grant
RoleLead
Funding Start2015
Funding Finish2015
GNoG1500547
Type Of FundingOther Public Sector - State
Category2OPS
UONY

Mapping immaterial social values associated with Lake Macquarie estuary$3,890

Funding body: Lake Macquarie City Council

Funding bodyLake Macquarie City Council
Project TeamMs Carol Martin, Associate Professor Natalie Moltschaniwskyj, Doctor Salim Momtaz, Doctor Troy Gaston
SchemeLake Macquarie Environmental Research Grant
RoleInvestigator
Funding Start2015
Funding Finish2015
GNoG1500097
Type Of FundingOther Public Sector - Local
Category2OPL
UONY

20148 grants / $124,973

The impact of habitat loss and rehabilitation on recruitment to the NSW eastern king prawn fishery$33,075

Funding body: NSW Department of Primary Industries

Funding bodyNSW Department of Primary Industries
Project TeamAssociate Professor Natalie Moltschaniwskyj, Doctor Troy Gaston, Dr Matt Taylor
SchemeScholarship
RoleInvestigator
Funding Start2014
Funding Finish2014
GNoG1301447
Type Of FundingOther Public Sector - State
Category2OPS
UONY

Identification and evaluation of anti-pancreatic cancer activity of cytotoxic compounds extracted from Australian sea sponges: a pilot study$20,500

Funding body: Hunter Medical Research Institute

Funding bodyHunter Medical Research Institute
Project TeamDoctor Christopher Scarlett, Doctor Quan Vuong, Doctor Jude Weidenhofer, Doctor Rick Thorne, Associate Professor Michael Bowyer, Doctor Troy Gaston
SchemeProject Grant
RoleInvestigator
Funding Start2014
Funding Finish2014
GNoG1401452
Type Of FundingGrant - Aust Non Government
Category3AFG
UONY

Postgraduate Scholarship$20,000

Funding body: Water Research Australia

Funding bodyWater Research Australia
Project TeamDoctor Troy Gaston, Mr Daniel Kousbroek, Mr Richard Connor
SchemePostgraduate Scholarships
RoleLead
Funding Start2014
Funding Finish2014
GNoG1400022
Type Of FundingGrant - Aust Non Government
Category3AFG
UONY

Intertidal shores as an indicator of anthropogenic derived nutrients using stable isotope analysis$17,780

Funding body: Hunter Water Corporation

Funding bodyHunter Water Corporation
Project TeamDoctor Troy Gaston, Doctor Louise McKenzie
SchemeResearch Grant
RoleLead
Funding Start2014
Funding Finish2014
GNoG1401274
Type Of FundingOther Public Sector - State
Category2OPS
UONY

Stable isotope sampling in Lake Macquarie$11,108

Funding body: Hunter Water Corporation

Funding bodyHunter Water Corporation
Project TeamDoctor Troy Gaston, Doctor Louise McKenzie
SchemeResearch Grant
RoleLead
Funding Start2014
Funding Finish2014
GNoG1401353
Type Of FundingOther Public Sector - State
Category2OPS
UONY

Trophic subsidy of coastal waters by river discharge: stable isotope evidence from the Hunter River.$8,500

Funding body: University of Newcastle - Faculty of Science & IT

Funding bodyUniversity of Newcastle - Faculty of Science & IT
Project TeamDoctor Troy Gaston
SchemeStrategic Initiative Research Fund (SIRF)
RoleLead
Funding Start2014
Funding Finish2014
GNoG1401039
Type Of FundingInternal
CategoryINTE
UONY

Spatial and temporal variability of seagrass stable isotope ratios. $7,510

Funding body: Lake Macquarie City Council

Funding bodyLake Macquarie City Council
Project TeamDoctor Troy Gaston, Associate Professor Natalie Moltschaniwskyj, Dr Matt Taylor
SchemeLake Macquarie Environmental Research Grant
RoleLead
Funding Start2014
Funding Finish2014
GNoG1400100
Type Of FundingOther Public Sector - Local
Category2OPL
UONY

Using artificial seagrass to restore ecosystem function and enhance recovery of an endangered population$6,500

Funding body: Equity Trustees Limited

Funding bodyEquity Trustees Limited
Project TeamMs Amanda Clarke, Doctor Troy Gaston
SchemeHolsworth Wildlife Research Endowment grant
RoleLead
Funding Start2014
Funding Finish2014
GNoG1400987
Type Of FundingGrant - Aust Non Government
Category3AFG
UONY

20134 grants / $36,371

Nutrient Sources of Tilligerry Creek Estuary, NSW, using Stable Isotope Analysis$14,890

Funding body: Hunter Water Corporation

Funding bodyHunter Water Corporation
Project TeamDoctor Troy Gaston
SchemeResearch Grant
RoleLead
Funding Start2013
Funding Finish2013
GNoG1301341
Type Of FundingOther Public Sector - State
Category2OPS
UONY

Multi-bioindiocator indices in fish: a novel indicator of water quality in estuaries$9,071

Funding body: Gosford City Council

Funding bodyGosford City Council
Project TeamAssociate Professor Natalie Moltschaniwskyj, Doctor Troy Gaston, Professor Joseph Bidwell
SchemeEcological Research Grant
RoleInvestigator
Funding Start2013
Funding Finish2013
GNoG1300412
Type Of FundingOther Public Sector - Local
Category2OPL
UONY

Epifaunal community composition and trophic structure in seagrass beds along a metal contamination gradient in Lake Macquarie$7,410

Funding body: Lake Macquarie City Council

Funding bodyLake Macquarie City Council
Project TeamProfessor Joseph Bidwell, Doctor Troy Gaston, Associate Professor Natalie Moltschaniwskyj, Doctor Maria Schreider
SchemeLake Macquarie Environmental Research Grant
RoleInvestigator
Funding Start2013
Funding Finish2013
GNoG1200113
Type Of FundingOther Public Sector - Local
Category2OPL
UONY

Energy flows in estuarine systems: ecosystem function and trophic subsidies$5,000

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor Troy Gaston
SchemeNew Staff Grant
RoleLead
Funding Start2013
Funding Finish2013
GNoG1300802
Type Of FundingInternal
CategoryINTE
UONY

20121 grants / $9,970

Mapping nutrient sources in coastal lagoons and estuaries through sentinel species.$9,970

Funding body: University of Newcastle - Faculty of Science & IT

Funding bodyUniversity of Newcastle - Faculty of Science & IT
Project TeamAssociate Professor Natalie Moltschaniwskyj, Doctor Troy Gaston, Doctor Maria Schreider
SchemeStrategic Initiative Research Fund (SIRF)
RoleInvestigator
Funding Start2012
Funding Finish2012
GNoG1401027
Type Of FundingInternal
CategoryINTE
UONY
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Research Supervision

Current Supervision

CommencedResearch Title / Program / Supervisor Type
2015Determining the Effectiveness of Estuarine Sanctuary Zones in Conserving Biodiversity
Marine Science, Faculty of Science and Information Technology
Co-Supervisor
2014Understanding Recreational and Commercial Use and Stakeholders of Marine Protected Areas (MPAs), and How Stakeholder Experience-Based Knowledge can be Integrated into the Management and Monitoring of MPAs
Environmental Studies, Faculty of Science and Information Technology
Co-Supervisor
2014Using artificial seagrass as a monitoring and restoration tool: spatial and temporal differences in seagrass meadows of Lake Macquarie
Marine Science, Faculty of Science and Information Technology
Principal Supervisor
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Dr Troy Gaston

Position

Lecturer
Marine Science
School of Environmental and Life Sciences
Faculty of Science and Information Technology

Focus area

Environmental Science and Management

Contact Details

Emailtroy.gaston@newcastle.edu.au
Phone(02) 4349 4569
Mobile0414251775
Fax(02) 4348 4145

Office

RoomE1.39
BuildingScience Offices
LocationOurimbah
10 Chittaway Road
Ourimbah, NSW 2258
Australia
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