Dr Troy Gaston

Lecturer

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

Career Summary

Biography

Research Expertise

Development of environmental monitoring programs addressing water quality, ecosystem health and ecosystem processes. nderstanding trophic interactions, tracking nutrient sources, elucidating food webs and stable isotope analysis in benthic, planktonic and pelagic estuarine, coastal and systems. Quantifying anthropogenic disturbances on estuarine and coastal ecosystems. Novel bycatch reduction methods in prawn trawl fisheries.


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

Code Description Percentage
050102 Ecosystem Function 30
050204 Environmental Impact Assessment 35
050206 Environmental Monitoring 35

Professional Experience

UON Appointment

Title Organisation / Department
Lecturer University of Newcastle
School of Environmental and Life Sciences
Australia

Academic appointment

Dates Title Organisation / Department
1/03/2012 -  Lecturer - Environmental Science University of Newcastle
School of Environmental and Life Sciences
Australia
1/07/2005 - 1/03/2012 Lecturer - Marine Biology and Ecology University of Tasmania
Australia
1/03/2002 - 1/06/2005 Postdoctoral Researcher University 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For publications that are currently unpublished or in-press, details are shown in italics.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)

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

Journal article (9 outputs)

Year Citation Altmetrics Link
2014 Hunt 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 (L... [more]

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.

DOI 10.1111/fme.12099
2014 Perraton 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 th... [more]

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.

DOI 10.1080/14486563.2014.955889
2009 Connolly 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)
DOI 10.1080/17451000802266625
Citations Scopus - 15Web of Science - 20
2009 Schlacher 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)
DOI 10.1007/s10452-008-9196-5
Citations Scopus - 14Web of Science - 20
2008 Schlacher 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)
DOI 10.1002/iroh.200711050
Citations Scopus - 8Web of Science - 8
2006 Gaston 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)
DOI 10.1016/j.ecss.2006.03.015
Citations Scopus - 24Web of Science - 25
2005 Schlacher TA, Liddell B, Gaston TF, Schlacher-Hoenlinger M, 'Fish track wastewater pollution to estuaries', OECOLOGIA, 144 570-584 (2005)
DOI 10.1007/s00442-005-0041-4
Citations Scopus - 50Web of Science - 52
2004 Gaston 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)
DOI 10.1016/j.jembe.2003.11.022
Citations Scopus - 46Web of Science - 45
2004 Gaston 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)
DOI 10.1071/MF03142
Citations Scopus - 16Web of Science - 18
Show 6 more journal articles

Conference (1 outputs)

Year Citation Altmetrics Link
2014 Sadeqzadeh 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]
Co-authors Vanquan Vuong, Judith Weidenhofer, Michael Bowyer, Anita Chalmers, C Scarlett, Natalie Moltschaniwskyj, Rick Thorne
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Grants and Funding

Summary

Number of grants 16
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 body Water Research Australia
Project Team Doctor Troy Gaston, Mr Angus Fanning
Scheme Postgraduate Scholarships
Role Lead
Funding Start 2015
Funding Finish 2015
GNo G1401315
Type Of Funding Donation - Aust Non Government
Category 3AFD
UON Y

Efficacy of sanctuary zones in NSW estuaries$9,500

Funding body: NSW Department of Primary Industries

Funding body NSW Department of Primary Industries
Project Team Doctor Troy Gaston, Associate Professor Natalie Moltschaniwskyj, Mr David Harasti
Scheme Research Grant
Role Lead
Funding Start 2015
Funding Finish 2015
GNo G1500547
Type Of Funding Other Public Sector - State
Category 2OPS
UON Y

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

Funding body: Lake Macquarie City Council

Funding body Lake Macquarie City Council
Project Team Ms Carol Martin, Associate Professor Natalie Moltschaniwskyj, Doctor Salim Momtaz, Doctor Troy Gaston
Scheme Lake Macquarie Environmental Research Grant
Role Investigator
Funding Start 2015
Funding Finish 2015
GNo G1500097
Type Of Funding Other Public Sector - Local
Category 2OPL
UON Y

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 body NSW Department of Primary Industries
Project Team Associate Professor Natalie Moltschaniwskyj, Doctor Troy Gaston, Dr Matt Taylor
Scheme Scholarship
Role Investigator
Funding Start 2014
Funding Finish 2014
GNo G1301447
Type Of Funding Other Public Sector - State
Category 2OPS
UON Y

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 body Hunter Medical Research Institute
Project Team Doctor Christopher Scarlett, Doctor Quan Vuong, Doctor Jude Weidenhofer, Doctor Rick Thorne, Associate Professor Michael Bowyer, Doctor Troy Gaston
Scheme Project Grant
Role Investigator
Funding Start 2014
Funding Finish 2014
GNo G1401452
Type Of Funding Grant - Aust Non Government
Category 3AFG
UON Y

Postgraduate Scholarship$20,000

Funding body: Water Research Australia

Funding body Water Research Australia
Project Team Doctor Troy Gaston, Mr Daniel Kousbroek, Mr Richard Connor
Scheme Postgraduate Scholarships
Role Lead
Funding Start 2014
Funding Finish 2014
GNo G1400022
Type Of Funding Grant - Aust Non Government
Category 3AFG
UON Y

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

Funding body: Hunter Water Corporation

Funding body Hunter Water Corporation
Project Team Doctor Troy Gaston, Doctor Louise McKenzie
Scheme Research Grant
Role Lead
Funding Start 2014
Funding Finish 2014
GNo G1401274
Type Of Funding Other Public Sector - State
Category 2OPS
UON Y

Stable isotope sampling in Lake Macquarie$11,108

Funding body: Hunter Water Corporation

Funding body Hunter Water Corporation
Project Team Doctor Troy Gaston, Doctor Louise McKenzie
Scheme Research Grant
Role Lead
Funding Start 2014
Funding Finish 2014
GNo G1401353
Type Of Funding Other Public Sector - State
Category 2OPS
UON Y

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 body University of Newcastle - Faculty of Science & IT
Project Team Doctor Troy Gaston
Scheme Strategic Initiative Research Fund (SIRF)
Role Lead
Funding Start 2014
Funding Finish 2014
GNo G1401039
Type Of Funding Internal
Category INTE
UON Y

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

Funding body: Lake Macquarie City Council

Funding body Lake Macquarie City Council
Project Team Doctor Troy Gaston, Associate Professor Natalie Moltschaniwskyj, Dr Matt Taylor
Scheme Lake Macquarie Environmental Research Grant
Role Lead
Funding Start 2014
Funding Finish 2014
GNo G1400100
Type Of Funding Other Public Sector - Local
Category 2OPL
UON Y

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

Funding body: Equity Trustees Limited

Funding body Equity Trustees Limited
Project Team Ms Amanda Clarke, Doctor Troy Gaston
Scheme Holsworth Wildlife Research Endowment grant
Role Lead
Funding Start 2014
Funding Finish 2014
GNo G1400987
Type Of Funding Grant - Aust Non Government
Category 3AFG
UON Y

20134 grants / $36,371

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

Funding body: Hunter Water Corporation

Funding body Hunter Water Corporation
Project Team Doctor Troy Gaston
Scheme Research Grant
Role Lead
Funding Start 2013
Funding Finish 2013
GNo G1301341
Type Of Funding Other Public Sector - State
Category 2OPS
UON Y

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

Funding body: Gosford City Council

Funding body Gosford City Council
Project Team Associate Professor Natalie Moltschaniwskyj, Doctor Troy Gaston, Professor Joseph Bidwell
Scheme Ecological Research Grant
Role Investigator
Funding Start 2013
Funding Finish 2013
GNo G1300412
Type Of Funding Other Public Sector - Local
Category 2OPL
UON Y

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 body Lake Macquarie City Council
Project Team Professor Joseph Bidwell, Doctor Troy Gaston, Associate Professor Natalie Moltschaniwskyj, Doctor Maria Schreider
Scheme Lake Macquarie Environmental Research Grant
Role Investigator
Funding Start 2013
Funding Finish 2013
GNo G1200113
Type Of Funding Other Public Sector - Local
Category 2OPL
UON Y

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

Funding body: University of Newcastle

Funding body University of Newcastle
Project Team Doctor Troy Gaston
Scheme New Staff Grant
Role Lead
Funding Start 2013
Funding Finish 2013
GNo G1300802
Type Of Funding Internal
Category INTE
UON Y

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 body University of Newcastle - Faculty of Science & IT
Project Team Associate Professor Natalie Moltschaniwskyj, Doctor Troy Gaston, Doctor Maria Schreider
Scheme Strategic Initiative Research Fund (SIRF)
Role Investigator
Funding Start 2012
Funding Finish 2012
GNo G1401027
Type Of Funding Internal
Category INTE
UON Y
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Research Supervision

Current Supervision

Commenced Research Title / Program / Supervisor Type
2015 Determining the Effectiveness of Estuarine Sanctuary Zones in Conserving Biodiversity
Marine Science, Faculty of Science and Information Technology
Co-Supervisor
2014 Understanding 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
2014 Using 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

Email troy.gaston@newcastle.edu.au
Phone (02) 4349 4569
Mobile 0414251775
Fax (02) 4348 4145

Office

Room E1.39
Building Science Offices
Location Ourimbah
10 Chittaway Road
Ourimbah, NSW 2258
Australia
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