A5077319512- Marine and fisheries research
- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Aquaculture Nutrition and Growth
- Reproductive biology and impacts on aquatic species
- Ichthyology and Marine Biology
- Coral and Marine Ecosystems Studies
- Crustacean biology and ecology
- Environmental Toxicology and Ecotoxicology
- Marine Bivalve and Aquaculture Studies
- Fish biology, ecology, and behavior
- Mercury impact and mitigation studies
- Marine animal studies overview
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Genetic diversity and population structure
- Analytical chemistry methods development
- Wildlife Ecology and Conservation
- Environmental DNA in Biodiversity Studies
- Olfactory and Sensory Function Studies
- Meat and Animal Product Quality
- Physiological and biochemical adaptations
- Heavy metals in environment
- Species Distribution and Climate Change
- Genetic and phenotypic traits in livestock
- Aquaculture disease management and microbiota
University of Tasmania
2013-2025
Fishwell Consulting (Australia)
2025
Institute for Marine and Antarctic Studies
2018
Australian Maritime College
2012-2013
IC Independent Consulting (Australia)
2012
New South Wales Department of Primary Industries
2005
Though extremely valuable to the local marine tourism industry, there is a dearth of published information on ecology and population dynamics reef manta rays (Mobula alfredi) in Raja Ampat, West Papua, Indonesia.Knowledge movement particular this large scattered urgently needed better manage rapidly expanding manta-focused tourism.Here we report results an initial passive acoustic telemetry study designed provide managers with first detailed knowledge site use patterns mantas northern...
Estuary perch (Percalates colonorum) are a long-lived and slow-growing species which distributed throughout southeastern Australian estuaries. In Tasmania, only one known population remains is located in the Arthur River, on remote northwest coast. Tasmania state to list estuary as wholly protected (recreational commercial), while other populations across their mainland distribution appear be robust. A survey undertaken River 2014–2015 indicated that was small (825–2375 fish) dominated by...
Cortisol levels of black bream Acanthopagrus butcheri at capture did not change with time day, gonadal stage or season and were 1·9±0·2 2·8±0·4 ng ml −1 for male female fish, respectively. Confinement resulted in significantly elevated cortisol all periods; however, after 24 h confinement lower than peak (15 min males 1 females). stress reduced 17β‐oestradiol (E2) testosterone (T) within sexually mature females. In males, suppression T 11‐ketotestosterone (11KT) occurred 30 6 confinement,...
AB Aquatic Biology Contact the journal Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 16:53-68 (2012) - DOI: https://doi.org/10.3354/ab00428 Reproduction, growth and connectivity among populations of Girella tricuspidata (Pisces: Girellidae) C. A. Gray1,2,*, J. Haddy1,3, Fearman1,3, L. M. Barnes1,4, W. G. Macbeth1, B. Kendall1 1Cronulla Fisheries Research Centre, PO Box 21, Cronulla, New South Wales 2230, Australia...
Changes in gonadosomatic index (GSI), hepatosomatic (HSI), gonad stage and plasma concentrations of sex steroids were studied over one year black bream (Acanthopagrus butcheri). Black have an annual reproductive cycle with a 3-month spawning season spring–early summer. GSI HSI values highest October May respectively. Plasma oestradiol-17β (E2), testosterone (T) 17,20β-dihydroxy-4-pregnen-3-one (17,20βP) females October. E2 T ovulated fish. Concentrations 17,20βP higher fish undergoing final...
The use of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) to analyse soft tissues is limited because the lack suitable certified reference materials resulting in difficulties with calibration. In this study, several laboratory-prepared thin agarose sections were tested as matrix-specific standards. Our results showed 1 mm calibration standards for LA-ICP-MS Zn analyses fish muscle, especially when signal intensity 66Zn was normalised 13C. standard used muscle...
This study examined the spatio‐temporal reproductive patterns, population structure, maturity and growth of Acanthopagrus hybrid complexes, which comprise mainly black bream butcheri hybrids they form with yellowfin australis , in two Australian estuaries (Coila Brou Lakes, NSW). There were no differences between pure A. terms their maturity, suggesting that these breeds have similar life histories may therefore be managed as single, naturally cohesive units. Sexual variation size structure...
Citizen science programs are effective methods to collect large volumes of data assist researchers in monitoring ecological environments. As species shift their distributions globally due climate change, the use citizen detect these shifts is increasing. Using targeted on could provide information range edges inform distribution modelling. Currently, models (SDMs) often rely repositories that may lack observations, and hence ability, changes at edge. Here, we developed a SDM compare...
This paper describes the reproductive biology and growth of Ibacus alticrenatus, I. brucei, chacei from east coast Queensland, Australia. Reproductive cycles, sizes at maturity, sex ratios, morphological data, egg sizes, brood fecundities, length-frequency distributions, parameters are described. numerically dominated both commercial research charter samples were followed by brucei alticrenatus in abundance respectively. Seasonal data indicated that have an annual cycle reproduction, with...
Muscle melanisation in sand flathead is defined as the presence of abnormal black spots fish's flesh and phenomenon has been associated with Zn pollution environment. In this study, levels fish muscle crabs were analysed to investigate role causing uptake via its diet, crabs. An improved technique for extracting melanised from fillets was developed. It enabled be more accurately determined when compared previous study showed 2.1–3.5 times higher regions than non-melanised unaffected by...
Whole otoliths, sectioned scales and vertebrae were used to select the most suitable for age determination of redfin perch, Percafluviatilis. Redfin perch sampled from Trevallyn Lake Brushy Lagoon using fyke nets, gillnets, electrofishing rod line angling. Age estimates assessed comparison between readings among structures. One-wayANOVA readability scores highlighted that otolith was obvious compare other hard parts. Sectioned otoliths also showed highest (93.9%) agreement readings, followed...