Web Access Research Portal

Researcher: Purser, GJ (Associate Professor John Purser)

Research Fields

Aquaculture
Fish Pests and Diseases
Fisheries Sciences
Fisheries Management
Freshwater Ecology
Technical, Further and Workplace Education
Physiology
Fish Physiology and Genetics
Computer Vision
Animal Systematics and Taxonomy
Post-Harvest Fisheries Technologies (incl. Transportation)
Animal Nutrition
Science, Technology and Engineering Curriculum and Pedagogy
Animal Developmental and Reproductive Biology
Comparative Physiology
Artificial Life
Conservation and Biodiversity
Biological Control
Invasive Species Ecology
Aquatic Ecosystem Studies and Stock Assessment
Animal Management
Acoustics and Acoustical Devices; Waves
Agricultural Land Management
Biogeography and Phylogeography
Ecological Impacts of Climate Change
Wildlife and Habitat Management
Marine and Estuarine Ecology (incl. Marine Ichthyology)
Physical Oceanography

Research Impact

Fisheries - Aquaculture
Aquaculture Fin Fish (excl. Tuna)
Animal Production and Animal Primary Products
Expanding Knowledge in the Environmental Sciences
Aquaculture Crustaceans (excl. Rock Lobster and Prawns)
Expanding Knowledge in Philosophy and Religious Studies
Fisheries - Wild Caught
Control of Pests, Diseases and Exotic Species in Fresh, Ground and Surface Water Environments
Control of Animal Pests, Diseases and Exotic Species in Coastal and Estuarine Environments
School/Institution Community and Environment
Wild Caught Fin Fish (excl. Tuna)
Documentation of Undescribed Flora and Fauna
Control of Animal Pests, Diseases and Exotic Species in Forest and Woodlands Environments
Wild Caught Tuna
Management of Gaseous Waste from Animal Production (excl. Greenhouse Gases)
Resourcing of Education and Training Systems
Marine Flora, Fauna and Biodiversity
Fresh, Ground and Surface Water Flora, Fauna and Biodiversity
Ecosystem Assessment and Management of Fresh, Ground and Surface Water Environments
Mountain and High Country Flora, Fauna and Biodiversity
Animal Welfare
Mountain and High Country Land and Water Management
Rural Water Evaluation (incl. Water Quality)
Coastal and Estuarine Water Management
Ecosystem Assessment and Management of Coastal and Estuarine Environments
Effects of Climate Change and Variability on Australia (excl. Social Impacts)
Coastal and Estuarine Flora, Fauna and Biodiversity

Career Best Publications

A computer vision system to analyse the swimming behaviour of farmed fish in commercial aquaculture facilities: A case study using cage-held Atlantic salmon; Aquacultural Engineering
Effect of stocking density and photoperiod on growth and survival in cultured early juvenile pot-bellied seahorses Hippocampus abdominalis Lesson, 1827; Aquaculture Research
Effect of tank colour on Artemia ingestion, growth and survival in cultured early juvenile pot-bellied seahorses (Hippocampus abdominalis); Aquaculture
Effect of Temperature on Growth and Survival in Cultured Early Juvenile Pot-Bellied Seahorses, Hippocampus abdominalis; World Aquaculture Society. Journal
Examining the daily feeding rhythms of amago Oncorhynchus masou masou using self-feeding systems; Aquaculture: An International Journal Devoted to Fundamental Aquatic Food Resources
Growing amago and rainbow trout in duoculture with self-feeding systems: Implications for production and welfare; Aquaculture
Salmonids; Aquaculture
Sterile 'Judas' carp - Surgical sterilisation does not impair growth, endocrine and behavioural responses of male carp; General and Comparative Endocrinology
The effect of feeding regime on growth, locomotor activity pattern and the development of food anticipatory activity in greenback flounder; Journal of Fish Biology
The effect of meal size and meal duration on food anticipatory activity in greenback flounder; Journal of Fish Biology
The effects of changing feeding frequency simultaneously with seawater transfer in Atlantic salmon Salmo salar L.smolt; Aquaculture International

Research Publications

'Smart' feeding systems
A computer vision system to analyse the swimming behaviour of farmed fish in commercial aquaculture facilities: A case study using cage-held Atlantic salmon; Aquacultural Engineering
A new species of Sisyra Burmeister 1839 (Neuroptera: Sisyridae) from Four Springs Lake and Wadley’s Dam, Northern Tasmania; Austral Entomology
A spatial memory task in the rainbow trout (Oncorhynchus mykiss); Journal of Ethology
A waste pellet monitoring system for detection of feeding rhythms in fish: continuously quantifying actual feed intake without disturbance; 70th Anniversary of the Japanese Society of Fisheries Science
Aggressive behaviour and cannibalism in juvenile barramundi - implications for commercial culture; COST 867: International Workshop on Fish Welfare
Agonistic acts as possible indicator of food anticipatory activity (FAA) in rainbow trout (Oncorhynchus mykiss) ; Iranian Journal of Veterinary Research
Application of the particle filter to tracking of fish in aquaculture research; Digital Image Computing: Techniques and Applications (DICTA)
Aquatas : Loss adjustors report for MMI Insurance
Arctic charr - a little known culture species
Behaviour of rainbow trout (Oncorhynchus mykiss) under defensible and indefensible patterns of food delivery; Chinese Journal of Oceanology and Limnology
Biochemical composition and enzymatic activities in juveniles of the seahorse Hippocampus abdominalis and the effect of Artemia enrichment; Aquaculture Europe 2010 Seafarming Tomorrow
Caudal fin aspect ratio as a predictor of maximum swimming speed; Australian Society for Fish Biology - Oceania Chrondrichthyan Society Conference
Challenges involved in the development of pot-bellied seahorse Hippocampus abdominalis aquaculture; Innovation in a Global Market
Challenges involved in the development of sustainable seahorse aquaculture; Biodiversity: balancing conservation & production
Challenges of mapping certificate and tertiary courses; Aqua Ed 2010
Changing the colour of seahorses Hippocampus abdominalis to better suit markets; Meeting the Challenge AquaFest Australia 2002
Characterisation and aetiology of jelly-like gonad condition (JGC) in the common carp, Cyprinus carpio (L); Australian Society for Fish Biology - Oceania Chrondrichthyan Society Conference
Circadian feeding rhythms in greenback flounder (Rhombosolea tapirina): role of light-dark cycles; AMSA 98 Adelaide
Circadian feeding rhythms in greenback flounder (Rhombosolea tapirina): role of light-dark cycles; Second Workshop of the COST 827 action on voluntary Food Intake in Fish
Demand-feeding activity of Rainbow Trout (Oncorhynchus mykiss) in raceways; World Journal of Zoology
Development and deployment of sterile 'Judas fish' to assist carp eradication in Lake Sorell, Tasmania - Surgical and chemical sterilization
Diel feeding rhythms of greenback flounder Rhombosolea tapirina (Gunther 1862): the role of light-dark cycles and food deprivation; Aquaculture Research
Diurnal and seasonal variation in feeding patterns of Atlantic salmon, Salmo salar L.., in sea cages ; Aquaculture Research
Dream holds water
Effect of acute and chronic ammonia and nitrite exposure on oxygen consumption and growth of juvenile big bellied seahorse; Journal of Fish Biology
Effect of direct transfer to different salinities on early juvenile pot-bellied seahorse, Hippocampus abdominalis, survival in culture conditions; World Aquaculture Society. Journal
Effect of holding temperature on ovulation, egg fertility, plasma levels of reproductive hormones and in vitro ovarian steroidogenesis in the rainbow trout Oncorhynchus mykiss ; Aquaculture
Effect of Meal Frequency and Time on Growth and Proximate Body Composition in Tank-reared Greenback Flounder; World Aquaculture '99 bridging the gap
Effect of rapid changes in temperature and salinity on availability of the rotifers Brachionus rotundiformis and Brachionus plicatilis.; Aquaculture
Effect of stocking density and photoperiod on growth and survival in cultured early juvenile pot-bellied seahorses Hippocampus abdominalis Lesson, 1827; Aquaculture Research
Effect of stocking density on growth, feeding, and cortisol levels of greenback flounder; Austasia Aquaculture
Effect of tank colour on Artemia ingestion, growth and survival in cultured early juvenile pot-bellied seahorses (Hippocampus abdominalis); Aquaculture
Effect of Temperature on Growth and Survival in Cultured Early Juvenile Pot-Bellied Seahorses, Hippocampus abdominalis; World Aquaculture Society. Journal
Effects of acute salinity and water quality changes on juvenile greenback flounder, Rhombosolea tapirina (Gunther, 1862); Acta Ichthyologica et Piscatoria
Effects of extenders and antibiotics on the refrigeration of functional male and neo-male salmonids milt; World Aquaculture 2015
Effects of photoperiod, temperature and salinity on hatchery - reared larvae of the greenback flounder ( Rhombosolea tapirina, Gunther, 1862); Aquaculture
Effects of salinity and temperature on eggs and yolk sac larvae of the greenback flounder (Rhombosolea tapirina , Gunther, 1862); Aquaculture
Effects of the first two months of ranching on the health of southern bluefin tuna Thunnus maccoyii ; Aquaculture
Egg incubation and larval rearing of the Tasmanian blenny, Parablennius tasmanianus tasmanianus: considerations for toxicological trials; Australasian Journal of Ecotoxicology
Estimating the swimming speed of salmon in aquaculture sea cages using computer vision; Innovation in a Global Market
Examining the daily feeding rhythms of amago Oncorhynchus masou masou using self-feeding systems; Aquaculture: An International Journal Devoted to Fundamental Aquatic Food Resources
Feed consumption and feeding behaviour of triploid rainbow trout; Austasia Aquaculture
Feeding cultured fish: the role of chronobiology; Aquafest Australia 2000
Feeding entrained circadian locomotor activity rhythms in Greenback flounder (Rhombosolea tapirina); Australian society for Fish Biology 1998 Conference
Feeding patterns in cultured greenback flounder Rhombosolea tapirina
Fish welfare and the animal ethics approval process; 2010 ANZCCART Conference
Flounder and the salmon industry; Austasia Aquaculture
Food anticipatory activity in greenback flounder; Fourth and Final Workshop of the COST 827 action on Voluntary Food Intake in Fish
From cage to plate : harvesting, processing and salmon products
Gravid spot predicts developmental progress and reproductive output in a livebearing fish, Gambusia holbrooki; PLoS ONE
Gravid spot: a surrogate for predicting progress of embryonic development and reproductive output in a live bearing fish (Gambusia holbrooki); Australian Society for Fish Biology - Oceania Chrondrichthyan Society Conference
Greenback flounder grow-out trials in Tasmania
Growing amago and rainbow trout in duoculture with self-feeding systems: Implications for production and welfare; Aquaculture
Impacts of cohort structure on behavioural interactions, growth performance and stress physiology in juvenile barramundi Lates calcarifer; Ridley Aqua Feed Prawn and Barramundi Conference
Ingestion level and re-conditioning onto frozen diets by juvenile large-bellied seahorses (Hippocampus abdominalis); Borneo Science A Journal of Science and Technology
Integrated aquaculture on salmon leases
Integrated open-water mussel (Mytilus planulatus) and Atlantic salmon (Salmo salar) culture in Tasmania, Australia; Aquaculture
Inter-seasonal variation in diurnal feeding patterns in caged Atalantic salmon; Second Workshop of the COST 827 action on voluntary food intake in fish
Light-dark variations in plasma melatonin concentrations in the pot-bellied seahorse Hippocampus abdominalis Lesson, 1827; Journal of Fish Biology
Nitrogen budgets for juvenile big-bellied seahorse Hippocampus abdominalis fed Artemia, mysids or pelleted feeds; Aquaculture
On: Tasmanian Aquaculture and Fisheries Institute; The Second Hatchery Feeds and Technology Workshop
Optimising food delivery and food intake: what are the options in fish culture systems?; Meeting the Challenge AquaFest Australia 2002
Oxygen and salmonid production
Potential impacts of marine farming of Atlantic salmon in South Australia - Escaped stock and other interactions
Prey selection by greenback flounder Rhombosolea tapirina (Gunther) larvae; Aquaculture
Priorities for live feed production and research in Tasmania; Hatchery feeds
Risk Assessment Report : Insurance underwriting Report for MMI Insurance - Red Cliffs Lease, Tassal Ltd
Salmonids; Aquaculture Farming Aquatic Animals and Plants
Salmonids; Aquaculture
SBT Aquaculture Subprogram; Southern Bluefin Tuna Aquaculture Subprogram (Aquafin CRC - FRDC)
Schooling behaviour of atlantic salmon smolt after transfer to a sea cage - a computer vision based analysis; Australasian Aquaculture 2010
Selective breeding and transgenic salmon; Austasia Aquaculture
South Australian tuna farms - progress of implementation of environmental monitoring protocols
Specific Individuals of Rainbow Trout (Oncorhynchus mykiss) Are Able to Show Time-Place Learning; Turkish Journal of Biology
Sterile 'Judas' carp - Surgical sterilisation does not impair growth, endocrine and behavioural responses of male carp; General and Comparative Endocrinology
Substrate-attachment preferences of cultured newborn pot-bellied seahorses, Hippocampus abdominalis (Lesson, 1827); Journal of the World Aquaculture Society
Supporting and resourcing secondary science teachers in rural and regional schools ; Teaching Science
Tassal - Loss adjustors report for MMI Insurance
Tassal : Loss adjustors report for MMI Insurance
Tassal, Preliminary assessment of fish losses at a number of sites
Tertiary Aquaculture Education in Tasmania; Aqua Ed Conference 2010
Testing of salmon smolt; Austasia Aquaculture
The Trainer The Lecturer and the Boss: Is Training Important, does it make a difference; Aquaculture Conference 2008
The biology and culture parameters of a temperate harpacticoid copepod of the genus Tisbe; World Aquaculture '99 Bridging the Gap
The biology of seahorses Hippocampus abdominalis in culture; Aquafest Australia 2000
The combined effect of feeding time and ration on growth performance and nitrogen metabolism of greenback flounder; Journal of Fish Biology
The effect of Artemia enrichment on the early rearing of the pot-bellied seahorse Hippocampus abdominalis; Aquaculture Europe 2010 Seafarming Tomorrow
The effect of decreased ration on feeding hierarchies in groups of greenback flounder (Rhombosolea tapirina: teleostei); Journal Marine Biological Association of the United Kingdom
The effect of feeding regime on growth, locomotor activity pattern and the development of food anticipatory activity in greenback flounder; Journal of Fish Biology
The effect of meal size and meal duration on food anticipatory activity in greenback flounder; Journal of Fish Biology
The effect of ration size and feeding duration of the pattern of feeding-entrained locomotor activity in Greenback flounder (Rhombosolea tapirina); World Aquaculture '99 Bridging the Gap
The effect of water quality on the physiology of pot-bellied seahorses, Hippocampus abdominalis under various live transport conditions; Sixth International Congress of Comparative Physiology and Biochemistry
The effects of changing feeding frequency simultaneously with seawater transfer in Atlantic salmon Salmo salar L.smolt; Aquaculture International
The image of aquaculture in the public arena; Austasia Aquaculture
The importance of a good start - the use of temperature
The Origions of Salmon; Austasia Aquaculture
The potential of integrated bivalve (Mytilus planulatus) and Atlantic salmon (Salmo salar)culture in North West Bay, Tasmania, Australia; Aquafest Australia 2000
The potential of three Australian copepods species as live feeds; World Aquaculture '99 Bridging the Gap
The production of organic salmon; Austasia Aquaculture
The use of filtration in salmonid production; Austasia Aquaculture
The use of temperate harpacticoid copepod nauplii as a first feed for flounder larvae (Rhombosolea tapirina); World Aquaculture '99 Bridging the Gap
The Value of Enriched Artemia in Supporting Growth and Survival of Juvenile Pot-bellied Seahorses Hippocampus abdominalis; Journal of the World Aquaculture Society
Triploid rainbow trout (Oncorhynchus mykiss): metabolic rate and growth; Austasia Aquaculture
Trojan Y genetic control of the invasive fish Gambusia holbrooki: rationale, progress, challenges and management realities; Australian Society for Fish Biology - Oceania Chrondrichthyan Society Conference
University graduates and the workforce; Austasia Aquaculture
Weaning of hatchery-reared greenback flounder (Rhombosolea tapirina Gunther) from live to artificial diets: Effects of age and duration of the changeover period; Aquaculture
What's coming to dinner? Predation on salmonid farms
Year-round harvests

Research Projects

An integrated marine aquaculture system using Atlantic salmon and shellfish; Australian Research Council (ARC)
Aspects of feeding, maturation and osmoregulation in culures juvenille greenback flounder; Fisheries Research & Development Corporation (FRDC)
Can Feeding Entrainment Improve the Level of Food Intake and Growth of Atlantic Salmon Smolt Transferred to Seawater Grow-out?; University of Tasmania (UTAS)
Can we Reduce our Reliance on Brine Shrimp (Artemia) during the Commercial Production of the Seahorse Hippocampus abdominalis; Australian Research Council (ARC)
Development of Zooplankton Species; CRC for Aquaculture (CRCA)
Effects of temperature and salinity on viability of Rainbow Trout, Salmo Gairdneri; Australian Research Council (ARC)
Improved Feeds and Feeding Methods for Greenback Flounder Production; Department of Industry, Tourism & Resources (DITR)
Improving our Understanding of Welfare in Farmed Fish through Behavioural Investigations and Use of Self Feeders; Australian Academy of Science (AASc)
Induction of Triploidy in the Greenback Flounder; University of Tasmania (UTAS)
Keeping Track of Fish in Aquaculture: The Application of Video and Radio Frequency Identification (RFID) Systems; University of Tasmania (UTAS)
Marine Links Extension - Aquaculture; Department of Primary Industries, Parks, Water & Environment (DPIPWE)
Optimisation of feed distribution to salmon in sea-cage culture; Fisheries Research & Development Corporation (FRDC)
The culture performance of greenback flounder Rhombosolea tapirina under grow-out conditions; Fisheries Research & Development Corporation (FRDC)
The effect of salinity and temperature on survival and development of eggs and larvae of the greenback flounder (Rhombosolea tapirina); University of Tasmania (UTAS)
The mechanism of osmoregulation in the euryhaline fish species Galaxias mac ulatus and Rhombosolea tapirina; Australian Research Council (ARC)
The Tasmanian Freshwater Eel industry - an industry development and directions plan; Fisheries Research & Development Corporation (FRDC)
Trojan Y as a genetic solution for controlling and eradicating the Eastern mosquitofish, Gambusia holbrooki; Australian Research Council (ARC)
Urgent Need for Generation and Deployment of Sterile 'Judas Fish' to Assist Carp Eradication in Lake Sorell, Tasmania; Fisheries Research & Development Corporation (FRDC)
Annual Carp Program Review
Effects of the Petuna salmonid farm outfall on invertebrate assemblages as Brumby's Creek
Opinion-Seawater intake system
The biology and taxonomy of spongillaflies (Sisyridae) and associated freshwater sponges in Four Springs Lake in the Launceston area
Understanding Behaviour in Farmed Fish Species

Research Candidate Supervision

A Study on the Feeding of the Pot-bellied Seahorse (Hippocampus abdominalis)- Reducing the Reliance on Brine Shrimp (Artemia)
Application of light as a bycatch reduction device in prawn trawl fisheries
Benthic Respiration and Nutrient Cycling in the Huon Estuary (Southern Tasmania)
Biosecurity Under Uncertainty- The Influence of Information Availability and Quality on Expert Decision-making for Risk Outcomes
Can Restoration Equivalency be Achieved in Coastal Restoration Efforts
Computational Techniques for Automated Tracking and Analysis of Fish Movement in Controlled Aquatic Environments
Dinoflagellate Cysts and Chattonella Resting Stages from Recent Sediments of the Southeast Coast of Iran
Examining the effect of fear, risk effects and secondary effects of predation on social behaviour in fish in the context of aquaculture and conservation
Factors Affecting Feed Intake, Aggression, Growth and Condition around Transfer to Sea in Atlantic Salmon (Salmo salar)
Factors Impacting on Aggressive Behaviour, Cannibalism and Subsequent Growth Performance in Juvenile Barramundi
Feeding Behaviour of Cultured Rainbow Trout (Oncorhynchus mykiss)
Feeding rhythms and behaviour in tank-reared green back flounder (Rhombosolea tapirina)
Health and Performance of Ranched Southern Bluefin Tuna
Integrated open-water mussel and salmon culture
Investigation of feeding physiology and metabolism, growth and feeding activity in greenback flounder, Rhombosolea taprina.
Mating Systems and Reproductive Success of Cephalopods
Metabolic and Osmoregulatory Responses of Snapper (Pagrus auratus), Mulloway (Argyrosomus japonicus) and Yellowtail Kingfish (Seriola ialandi) in Saline Groundwater
Nitrogen Uptake by Phytoplankton in the Huon Estuary- With Special Reference to the Physiology of the Toxic Dinoflagellate Gymnodinium Catenatum
Optimising the Culture Environment for Early Juvenile Pot-bellied Seahorses Hippocampus abdominalis Leeson, 1827 (Teleostei- Syngnathide)
Optomisation of Feed Distribution to Sea Caged Fish with an Emphasis on Atlantic Salmon (Salmo salar L.)
Oral Treatments for Amoebic Gill Disease (AGD) in Atlantic Salmon, Salmo salar
Phosphorous Requirement of Atlantic Salmon (Salmo Salar L.) at Elevated Temperature
Physiological Responses of Bluethroat Wrasse, Notolabrus tetricus, Horseshoe Leatherjacket, Meuschenia hippocrepis and Greenback Flounder, Rhombosolea tapirina, to Low Temperature Transport
Probiotic and Pathogenic Bacteria in Larval Rearing of Spiny Lobsters, Jasus edwardsii and Jasus (Sagmariasus) verreauxi
Sex Reversal and Determination of Gamity in the Eastern Mosquito Fish Gambusia holbrookii
Skin Colour, Colour Preferences and Retinal Structure of Pot Bellied Seahorse, Hippocampus abdominalis
The Assessment of Omega 3 Oil Sources for Use in Aquaculture - Alternatives to the Unsustainable Harvest of Wild Fish Stocks
The culture of copepods as live food for marine fish larvae
The effect of nutrition on Reproductive Endocrinology & Larval develpment of Marine Finfish
The Measurement of Visceral Temperature Patterns and Implications for Feeding Practices in Ranched Southern Bluefin Tuna Thunnus maccoyii
Title- Factors affecting the early life stages of hatchery-reared Greenback flounder (Rhombosolea tapirina, Gunther , 1862).
Vaccination of Atlantic Salmon (Salmo salar) against Marine Flexibacteriosis
Vitellogenin and vitellogenesis in greenback flounder (rhombosolea tapirina)