ARDC Research Link Australia

ORCID Profile
Orcid icon. 0000-0002-0972-4668

Current Organisations
The University of Newcastle , University of Technology Sydney , NSW Department of Primary Industries

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Research Topics

In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.

ANZSRC Field of Research (FoR)

ANZSRC Socio-Economic Objective (SEO)

Aquaculture Oysters | Climate Change Adaptation Measures | Living resources (flora and fauna) | Rehabilitation of Degraded Coastal and Estuarine Environments | Aquaculture | Ecosystem Assessment and Management of Coastal and Estuarine Environments | Nutraceuticals and Functional foods | Control of Pests, Diseases and Exotic Species in Marine Environments | Coastal and Estuarine Flora, Fauna and Biodiversity | Barley | Control of Animal Pests, Diseases and Exotic Species in Coastal and Estuarine Environments | Aquaculture Molluscs (excl. Oysters) | Service Industries Standards and Calibrations | Physical and Chemical Conditions of Water in Coastal and Estuarine Environments | Fisheries—commercial | Ecosystem Adaptation to Climate Change | Effects of Climate Change and Variability on Australia (excl. Social Impacts) | Conserving Aboriginal and Torres Strait Islander Heritage | Land and water management | Control of pests and exotic species | Expanding Knowledge in the Earth Sciences |

Publications

Publication

The Akoya pearl oyster shell as an archival monitor of lead exposure

Publisher: No publisher found

DOI: 10.1016/J.ENVPOL.2005.10.042}

Publication

Longitudinal study of winter mortality disease in Sydney rock oysters Saccostrea glomerata

Publisher: Inter-Research Science Center

Date: 24-07-2014

DOI: 10.3354/DAO02629

Abstract: Winter mortality (WM) is a poorly studied disease affecting Sydney rock oysters Saccostrea glomerata in estuaries in New South Wales, Australia, where it can cause significant losses. WM is more severe in oysters cultured deeper in the water column and appears linked to higher salinities. Current dogma is that WM is caused by the microcell parasite Bonamia roughleyi, but evidence linking clinical signs and histopathology to molecular data identifying bonamiasis is lacking. We conducted a longitudinal study between February and November 2010 in 2 estuaries where WM has occurred (Georges and Shoalhaven Rivers). Results from molecular testing of experimental oysters for Bonamia spp. were compared to clinical disease signs and histopathology. Available environmental data from the study sites were also collated and compared. Oyster condition declined over the study period, coinciding with decreasing water temperatures, and was inversely correlated with the presence of histological lesions. While mortalities occurred in both estuaries, only oysters from the Georges River study site showed gross clinical signs and histological changes characteristic of WM (lesions were prevalent and intralesional microcell-like structures were sometimes noted). PCR testing for Bonamia spp. revealed the presence of an organism belonging to the B. exitiosa-B. roughleyi clade in some s les however, the very low prevalence of this organism relative to histological changes and the lack of reactivity of affected oysters in subsequent in situ hybridisation experiments led us to conclude that this Bonamia sp. is not responsible for WM. Another aetiological agent and a confluence of environmental factors are a more likely explanation for the disease.

Publication

EMBRYONIC, LARVAL, AND EARLY POSTLARVAL DEVELOPMENT OF THE TROPICAL BLACK-LIP ROCK OYSTER SACCOSTREA ECHINATA

Publisher: No publisher found

DOI: 10.2983/035.037.0106}

Publication

Latitudinal variation in reproductive behavior in the pearl oyster, Pinctada albina sugillata

Publisher: No publisher found

DOI: 10.1016/S0044-8486(01)00813-4}

Publisher: Elsevier BV

Publisher: Wiley

Date: 25-03-2009

DOI: 10.1111/J.1365-2761.2009.01022.X

Abstract: Marteilia sydneyi is the causative agent of QX disease in Sydney rock oyster, Saccostrea glomerata. It is responsible for disease outbreaks among oysters that occur during summer and can result in up to 95% mortality. QX disease has significantly decreased S. glomerata production in some areas of Australia's eastern seaboard over the past 30 years. Marteilia sydneyi sporulates in the digestive gland of oysters leading to complete disorganization of the infected tissues. The current study used proteomics to identify potential molecular markers of sporulating M. sydneyi infection during a field trial undertaken in the Georges River, Sydney, between December 2006 and May 2007. Early stages of M. sydneyi infection were detected by polymerase chain reaction, whilst cytological examination was used to identify sporulating M. sydneyi in the gut. Protein expression in oyster haemolymph was assessed during the M. sydneyi infection period by two dimensional electrophoresis. Proteome maps identified significant differences in the expression of four proteins in oysters with sporulating M. sydneyi infections.

Publication

Predicting the Response of Molluscs to the Impact of Ocean Acidification

Publisher: MDPI AG

Date: 02-04-2013

DOI: 10.3390/BIOLOGY2020651

Publication

Exposure to 17 alpha-ethynylestradiol causes dose and temporally dependent changes in intersex, females and vitellogenin production in the Sydney rock oyster

Publisher: No publisher found

DOI: 10.1007/S10646-010-0529-5}

Publication

Publication

Temperature and nutrition as factors in conditioning broodstock of the commercial scallop Pecten fumatus Reeve

Publisher: No publisher found

DOI: 10.1016/0044-8486(95)01231-1}

Publication

Publisher: Elsevier BV

Date: 12-1997

DOI: 10.1016/S0044-8486(97)00194-4

Publication

Ocean acidification narrows the acute thermal and salinity tolerance of the Sydney rock oyster Saccostrea glomerata

Publisher: Elsevier BV

Date: 09-2017

DOI: 10.1016/J.MARPOLBUL.2017.06.052

Abstract: Coastal and estuarine environments are characterised by acute changes in temperature and salinity. Organisms living within these environments are adapted to withstand such changes, yet near-future ocean acidification (OA) may challenge their physiological capacity to respond. We tested the impact of CO

Publication

Resolution of the controversial relationship between Pacific and Portuguese oysters internationally and in Vietnam

Publisher: No publisher found

DOI: 10.1016/J.AQUACULTURE.2017.03.004}

Publication

Fast-growing oysters show reduced capacity to provide a thermal refuge to intertidal biodiversity at high temperatures

Publisher: Wiley

Date: 12-10-2017

DOI: 10.1111/1365-2656.12757

Abstract: Ecosystem engineers that modify the thermal environment experienced by associated organisms might assist in the climate change adaptation of species. This depends on the ability of ecosystem engineers to persist and continue to ameliorate thermal stress under changing climatic conditions-traits that may display significant intraspecific variation. In the physically stressful intertidal, the complex three-dimensional structure of oysters provides shading and traps moisture during aerial exposure at low tide. We assessed variation in the capacity of a faster- and slower-growing population of the Sydney Rock Oyster, Saccostrea glomerata, to persist, form three-dimensional structure and provide a cool microhabitat to invertebrates under warmer conditions. The two populations of oysters were exposed to a temperature gradient in the field by attaching them to passively warmed white, grey and black stone pavers and their growth, survivorship and colonisation by invertebrates was monitored over a 12-month period. Oysters displayed a trade-off between fast growth and thermal tolerance. The growth advantage of the fast-growing population diminished with increasing substrate temperature, and at higher temperatures, the faster-growing oysters suffered greater mortality, formed less habitat, and were consequently less effective at ameliorating low-tide air temperature extremes than slower-growing oysters. The greater survivorship of slower-growing oysters, in turn, produced a cooler microclimate which fed back to further bolster oyster survivorship. Invertebrate recruitment increased with habitat cover and was greater among the slower than the faster-growing population. Our results show that the capacity of ecosystem engineers to serve as microhabitat refugia to associated organisms in a warming climate displays marked intraspecific variation. Our study also adds to growing evidence that fast growth may come at the expense of thermal tolerance.

Publication

Digenean (Bucephalidae) infections in commercial scallops, Pecten fumatus Reeve, and doughboy scallops, Chlamys (Mimachlamys) asperrima (Lamarck), in Jervis Bay, New South Wales

Publisher: Wiley

Date: 09-1996

DOI: 10.1111/J.1365-2761.1996.TB00371.X

Publication

Effects of 4-nonylphenol and 17α-ethynylestradiol exposure in the Sydney rock oyster, Saccostrea glomerata: Vitellogenin induction and gonadal development

Publisher: Elsevier BV

Date: 06-2008

DOI: 10.1016/J.AQUATOX.2008.03.003

Abstract: Adult Saccostrea glomerata were exposed to environmentally relevant concentrations of 4-nonylphenol (1microg/L and 100microg/L) and 17alpha-ethynylestradiol (5ng/L and 50ng/L) in seawater over 8 weeks. Exposures were performed to assess effects on vitellogenin induction and gonadal development during reproductive conditioning. Chronic direct estrogenicity within gonadal tissue was assessed via an estrogen receptor-mediated, chemical-activated luciferase reporter gene-expression assay (ER-CALUX). Estradiol equivalents (EEQ) were greatest in the 100microg/L 4-nonylphenol exposure (28.7+/-2.3ng/g tissue EEQ) while 17alpha-ethynylestradiol at concentrations of 50ng/L were 2.2+/-1.5ng/g tissue EEQ. Results suggest 4-nonylphenol may be accumulated in tissue and is partly resistant to biotransformation maintaining its potential for chronic estrogenic action, while 17alpha-ethynylestradiol, although exhibiting greater estrogenic potency on biological endpoints possibly exerts its estrogenic action before being rapidly metabolised and/or excreted. A novel methodology was developed to assess vitellogenin using high-performance liquid chromatography (HPLC). Exposure to both 17alpha-ethynylestradiol (50ng/L) and 4-nonylphenol (100microg/L) produced increases in vitellogenin for females, whereas males exhibited increases in vitellogenin when exposed to 50ng/L 17alpha-ethynylestradiol only. Females exhibited greater vitellogenin responses than males at 50ng/L 17alpha-ethynylestradiol only. Histological examination of gonads revealed a number of in iduals exhibiting intersex (ovotestis) in 50ng/L 17alpha-ethynylestradiol exposures. Male in iduals in 1microg/L and 100microg/L 4-nonylphenol exposures and 5ng/L 17alpha-ethynylestradiol were at earlier stages of spermatogenic development than corresponding controls.

Publication

Intertidal oysters reach their physiological limit in a future high-CO2 world

Publisher: No publisher found

DOI: 10.1242/JEB.151365}

Publication

The Akoya pearl oyster shell as an archival monitor of lead exposure

Publisher: Elsevier BV

Date: 09-2006

DOI: 10.1016/J.ENVPOL.2005.10.042

Abstract: The Akoya pearl oyster (Pinctada imbricata) was experimentally exposed to (a) constant levels of lead (Pb) at 180 microg L(-1) for nine weeks, or (b) two short term (pulse) exposures of Pb at 180 microg L(-1) (three weeks each) with an intervening depuration period (three weeks), to assess its utility as an (i) accumulative monitor of Pb contamination and an (ii) archival monitor for discriminating constant versus pulsed Pb exposure events. P. imbricata showed similar reductions in growth (based on shell morphology and wet weight) and Pb accumulation patterns for whole tissue and shell in response to both Pb exposure regimes. Thus the whole oyster was deemed an inappropriate accumulative monitor for assessing short-term temporal variation of Pb exposure and effect. However, using secondary ion mass spectrometry, Pb was shown to accumulate in the successively deposited nacreous layers of the shell of P. imbricata, documenting the exposure history of constant versus pulsed Pb events. Patterns of Pb deposition not only reflected the frequency of Pb exposure events but also their relative durations. Thus, the shell of P. imbricata may be employed as a suitable biological archive of Pb exposure.

Publication

Commercial assessment of growth and mortality of fifth-generation Sydney rock oystersSaccostrea glomerata(Gould, 1850) selectively bred for faster growth

Publisher: Hindawi Limited

Date: 08-2009

DOI: 10.1111/J.1365-2109.2009.02243.X

Publication

Cadmium uptake and zinc-cadmium antagonism in Australian tropical rock oysters: Potential solutions for oyster aquaculture enterprises

Publisher: No publisher found

DOI: 10.1016/J.MARPOLBUL.2017.09.031}

Publication

Trophic transfer of microplastics and mixed contaminants in the marine food web and implications for human health

Publisher: No publisher found

DOI: 10.1016/J.ENVINT.2018.03.007}

Publisher: Elsevier BV

Date: 07-2011

DOI: 10.1016/J.TOXICON.2011.05.010

Abstract: Farmed greenlip abalone Haliotis laevigata were fed commercial seaweed-based food pellets or feed pellets supplemented with 8 × 10⁵ Alexandrium minutum dinoflagellate cells g⁻¹ (containing 12 ± 3.0 μg STX-equivalent 100 g⁻¹, which was mainly GTX-1,4) every second day for 50 days. Exposure of abalone to PST supplemented feed for 50 days did not affect behaviour or survival but saw accumulation of up to 1.6 μg STX-equivalent 100 g⁻¹ in the abalone foot tissue (muscle, mouth without oesophagus and epipodial fringe), which is ∼50 times lower than the maximum permissible limit (80 μg 100 g⁻¹ tissue) for PSTs in molluscan shellfish. The PST levels in the foot were reduced to 0.48 μg STX-equivalent 100 g⁻¹ after scrubbing and removal of the pigment surrounding the epithelium of the epipodial fringe (confirmed by both HPLC and LC-MS/MS). Thus, scrubbing the epipodial fringe, a common procedure during commercial abalone canning, reduced PST levels by ∼70%. Only trace levels of PSTs were detected in the viscera (stomach, gut, heart, gonad, gills and mantle) of the abalone. A toxin reduction of approximately 73% was observed in STX-contaminated abalone held in clean water and fed uncontaminated food over 50 days. The low level of PST uptake when abalone were exposed to high numbers of A. minutum cells over a prolonged period may indicate a low risk of PSP poisoning to humans from the consumption of H. laevigata that has been exposed to a bloom of potentially toxic A. minutum in Australia. Further research is required to establish if non-dietary accumulation can result in significant levels of PSTs in abalone.

Publication

Differential proteomic responses of selectively bred and wild‐type Sydney rock oyster populations exposed to elevated CO₂

Publisher: Wiley

Date: 03-2015

DOI: 10.1111/MEC.13111

Abstract: Previous work suggests that larvae from Sydney rock oysters that have been selectively bred for fast growth and disease resistance are more resilient to the impacts of ocean acidification than nonselected, wild-type oysters. In this study, we used proteomics to investigate the molecular differences between oyster populations in adult Sydney rock oysters and to identify whether these form the basis for observations seen in larvae. Adult oysters from a selective breeding line (B2) and nonselected wild types (WT) were exposed for 4 weeks to elevated pCO2 (856 μatm) before their proteomes were compared to those of oysters held under ambient conditions (375 μatm pCO2 ). Exposure to elevated pCO2 resulted in substantial changes in the proteomes of oysters from both the selectively bred and wild-type populations. When biological functions were assigned, these differential proteins fell into five broad, potentially interrelated categories of subcellular functions, in both oyster populations. These functional categories were energy production, cellular stress responses, the cytoskeleton, protein synthesis and cell signalling. In the wild-type population, proteins were predominantly upregulated. However, unexpectedly, these cellular systems were downregulated in the selectively bred oyster population, indicating cellular dysfunction. We argue that this reflects a trade-off, whereby an adaptive capacity for enhanced mitochondrial energy production in the selectively bred population may help to protect larvae from the effects of elevated CO2 , whilst being deleterious to adult oysters.

Publication

Spawning induction and fertilisation in the doughboy scallop Chlamys (Mimachlamys) asperrima

Publisher: Elsevier BV

Publisher: Elsevier BV

Date: 06-2018

Publisher: Hindawi Limited

Date: 30-11-2010

DOI: 10.1111/J.1365-2109.2010.02682.X

Publisher: Elsevier BV

Date: 1994

DOI: 10.1016/0044-8486(94)90171-6

Publication

Quantification of in situ nutrient and heavy metal remediation by a small pearl oyster (Pinctada imbricata) farm at Port Stephens, Australia

Publisher: Elsevier BV

Date: 04-2005

DOI: 10.1016/J.MARPOLBUL.2004.11.024

Abstract: The use of pearl oysters has recently been proposed as an environmental remediation tool in coastal ecosystems. This study quantified the nitrogen, phosphorus and heavy metal content of the tissue and shell of pearl oysters harvested from a small pearl oyster farm at Port Stephens, Australia. Each tonne of pearl oyster material harvested resulted in approximately 703 g metals, 7452 g nitrogen, and 545 g phosphorus being removed from the waters of Port Stephens. Increasing current farm production of 9.8 tyr(-1) to 499 tyr(-1) would balance current nitrogen loads entering Port Stephens from a small Sewage Treatment Plant (STP) located on its southern shores. Furthermore, manipulation of harvest dates to coincide with oyster condition would likely remove substantially greater quantities of nutrients. This study demonstrates that pearl aquaculture may be used to assist in the removal of pollutants from coastal waters while producing a commercially profitable commodity.

Publication

Reproductive neuropeptides that stimulate spawning in the Sydney Rock Oyster (Saccostrea glomerata)

Publisher: No publisher found

DOI: 10.1016/J.PEPTIDES.2016.06.007}

Publication

Characterisation of the metallothionein gene in the Sydney rock oyster and its expression upon metal exposure in oysters with different prior metal exposure histories

Publisher: Elsevier BV

Date: 10-2019

DOI: 10.1016/J.MARENVRES.2019.104775

Abstract: The metal-binding protein metallothionein (MT) is widely used as a biomarker of metal contamination. In this study, we cloned a MT gene (sgMT) from the Sydney rock oyster Saccostrea glomerata. The gene encodes a MT-I protein with a classical αβ domain structure and is expressed as two transcripts resulting from alternative polyadenylation. The gene promoter contains two putative metal-responsive elements (MREs) which are known to be required for metal-inducible transcription. A specific and efficient qPCR assay was developed to quantify sgMT mRNA expression. Further, we assessed whether prior metal exposure history influences sgMT mRNA expression upon subsequent metal exposure. Oysters with varying prior metal exposure histories (contaminated and reference) were exposed to Cu, Cd and Zn. Expression of sgMT generally increased with metal dose, and oysters with an elevated past metal exposure history exhibited higher sgMT expression under Cd and Zn stress, representing a potential acclimatory response to prior metal exposure.

Publication

Impacts of ocean acidification on marine shelled molluscs

Publisher: No publisher found

DOI: 10.1007/S00227-013-2219-3}

Publication

Publisher: No publisher found

DOI: 10.1186/1471-2164-15-840}

Publication

First observations of perfluorooctane sulfonate occurrence and depuration from Sydney Rock Oysters, Saccostrea glomerata, in Port Stephens NSW Australia

Publisher: No publisher found

DOI: 10.1016/J.MARPOLBUL.2017.11.058}

Publication

Aquatic zooremediation: deploying animals to remediate contaminated aquatic environments

Publisher: No publisher found

DOI: 10.1016/J.TIBTECH.2006.12.002}

Publication

Publisher: No publisher found

DOI: 10.1007/978-94-017-9008-6\_13}

Publication

Detachment of commercial scallop Pecten fumatus, spat from settlement substrates

Publisher: Elsevier BV

Publisher: CSIRO Publishing

Date: 2016

DOI: 10.1071/MF15320

Abstract: This study tested the proteomic responses of three spatially distinct Sydney rock oyster populations to elevated pCO2. Oysters were collected from environmentally different sites, two chronically affected by acid sulfate soil. Oysters from each of the three populations were exposed to ambient (380µatm) or elevated (856 and 1500µatm) pCO2 for 4 weeks. Subsequent proteomic analysis from haemolymph revealed that (1) there were differences between the proteomes of the three populations after exposure to ambient pCO2, and (2) the different oyster populations mounted significantly different responses to elevated pCO2. Proteins that differed significantly in concentration between pCO2 treatments fell into five broad functional categories: energy metabolism, cellular stress responses, the cytoskeleton, protein synthesis and the extracellular matrix. This is consistent with the hypothesis that environmental stress in oysters leads to a generic response involving increased mitochondrial energy production to maintain cellular homeostasis. Proteins involved in the cytoskeleton and energy metabolism were the most differentially expressed and were seen in all three oyster populations. Differences between populations in their proteomic responses suggested that the local environments from which oysters originate may affect their capacity to respond to ocean acidification.

Publication

INDUCTION OF ANESTHESIA IN THE COMMERCIAL SCALLOP, PECTEN FUMATUS REEVE

Publisher: No publisher found

DOI: 10.1016/0044-8486(94)00360-Z}

Publication

Evidence that the major hemolymph protein of the Pacific oyster, Crassostrea gigas, has antiviral activity against herpesviruses

Publisher: No publisher found

DOI: 10.1016/J.ANTIVIRAL.2014.08.010}

Publication

Warm temperature acclimation impacts metabolism of paralytic shellfish toxins from Alexandrium minutum in commercial oysters

Publisher: No publisher found

DOI: 10.1111/GCB.12952}

Publication

Ocean acidification affects both the predator and prey to alter interactions between the oyster Crassostrea gigas (Thunberg, 1793) and the whelk Tenguella marginalba (Blainville, 1832)

Publisher: Springer Science and Business Media LLC

Date: 15-02-2018

DOI: 10.1007/S00227-018-3302-6

Publication

Reproductive neuropeptides that stimulate spawning in the Sydney Rock Oyster (Saccostrea glomerata)

Publisher: Elsevier BV

Date: 08-2016

DOI: 10.1016/J.PEPTIDES.2016.06.007

Abstract: The Sydney Rock Oyster, Saccostrea glomerata, is a socioeconomically important species in Australia, yet little is known about the molecular mechanism that regulates its reproduction. To address this gap, we have performed a combination of high throughput transcriptomic and peptidomic analysis, to identify genes and neuropeptides that are expressed in the key regulatory tissues of S. glomerata the visceral ganglia and gonads. Neuropeptides are known to encompass a erse class of peptide messengers that play functional roles in many aspects of an animal's life, including reproduction. Approximately 28 neuropeptide genes were identified, primarily within the visceral ganglia transcriptome, that encode precursor proteins containing numerous neuropeptides some were confirmed through mass spectral peptidomics analysis of the visceral ganglia. Of those, 28 bioactive neuropeptides were synthesized, and then tested for their capacity to induce gonad development and spawning in S. glomerata. Egg laying hormone, gonadotropin-releasing hormone, APGWamide, buccalin, CCAP and LFRFamide were neuropeptides found to trigger spawning in ripe animals. Additional testing of APGWa and buccalin demonstrated their capacity to advance conditioning and gonadal maturation. In summary, our analysis of S. glomerata has identified neuropeptides that can influence the reproductive cycle of this species, specifically by accelerating gonadal maturation and triggering spawning. Other molluscan neuropeptides identified in this study will enable further research into understanding the neuroendocrinology of oysters, which may benefit their cultivation.

Publication

Effects of multiple climate change stressors: ocean acidification interacts with warming, hyposalinity, and low food supply on the larvae of the brooding flat oyster Ostrea angasi

Publisher: Springer Science and Business Media LLC

Date: 30-04-2016

DOI: 10.1007/S00227-016-2880-4

Publication

Current Status and Potential of Tropical Rock Oyster Aquaculture

Publisher: Informa UK Limited

Status of the Sydney rock oyster in a disease-afflicted estuary

Publisher: CSIRO Publishing

Date: 2013

DOI: 10.1071/MF13010

Abstract: Marine diseases represent a significant threat to wild organisms and the ecosystem services they support, yet studies often consider only disease impacts to aquaculture. In eastern Australia, the Sydney rock oyster (Saccostrea glomerata) aquaculture industry is increasingly affected by outbreaks of QX disease caused by parasitic Marteilia sydneyi. The present study considered impacts of M. sydneyi infection on the structure of wild-oyster populations that are dominated by S. glomerata, but that may also include the non-native Pacific oyster, Crassostrea gigas. In the Hawkesbury River Estuary, where cultured S. glomerata has experienced up to 98% QX-induced mortality, we found that disease prevalence was comparatively low among wild S. glomerata, peaking at 14%, and annual infections did not cause seasonal patterns of mortality. Furthermore, C. gigas, a competitor of S. glomerata that is not susceptible to QX disease, was not consistently more abundant at sites with than without the parasite. Overall, our results indicated that relative to cultured counterparts, wild S. glomerata in the Hawkesbury River Estuary is minimally affected by QX disease. Nevertheless, our study showed that diseases of aquaculture stocks have the capacity to infect wild populations, and that longer-term assessment of wild populations at risk is essential.

Publication

Analysis of polycyclic aromatic hydrocarbons (PAHs) and their polar derivatives in soils of an industrial heritage city of Australia

Publisher: Elsevier BV

Date: 2020

DOI: 10.1016/J.SCITOTENV.2019.134303

Publication

Reproductive condition of the pearl oyster, Pinctada imbricata, Roding, in Port Stephens, New South Wales, Australia

Publisher: Hindawi Limited

Date: 03-2004

DOI: 10.1111/J.1365-2109.2004.01027.X

Publication

Comparing the effect of elevated pCO2 and temperature on the fertilization and early development of two species of oysters

Publisher: Springer Science and Business Media LLC

Date: 15-07-2010

DOI: 10.1007/S00227-010-1508-3

Publication

Neuropeptides encoded by the genomes of the akoya pearl oyster pinctata fucata and pacific oyster crassostrea gigas: A bioinformatic and peptidomic survey

Publisher: Springer Science and Business Media LLC

Date: 02-10-2014

DOI: 10.1186/1471-2164-15-840

Publication

Fast-growing oysters show reduced capacity to provide a thermal refuge to intertidal biodiversity at high temperatures

Publisher: No publisher found

DOI: 10.1111/1365-2656.12757}

Publication

Differential accumulation of paralytic shellfish toxins from Alexandrium minutum in the pearl oyster, Pinctada imbricata

Publisher: Elsevier BV

Date: 09-2009

DOI: 10.1016/J.TOXICON.2009.04.005

Abstract: To investigate the potential for differential accumulation of paralytic shellfish toxins (PSTs) in various tissues of the akoya pearl oyster, Pinctada imbricata, two feeding trials were carried out using the PST-producing dinoflagellate, Alexandrium minutum. When fed with A. minutum at concentrations between 100 and 1300 cells ml(-1), the maximum clearance by P. imbricata was shown to occur at a density of 300 cells ml(-1). When fed twice daily at this rate for up 12 days, P. imbricata accumulated analogues of gonyautoxins (GTXs): GTXs 1,4 and 2,3. The levels of GTXs in the viscera increased progressively on days 4, 8 and 12 to peak at 17.9+/-4.47 microg STX-equivalent 100 g(-1) biomass. Following 12 days of depuration, in the absence of A. minutum, GTX levels fell by approximately 65% to 6.0+/-2.20 microg STX-equivalent 100 g(-1) biomass. No GTX was found in the oysters at the start of the trial or in untreated controls. The accumulation of GTX was found to be tissue specific. No GTX was detected in the muscle tissue of P. imbricata during the feeding trial.

Publication

Combined exposure to pyrene and fluoranthene and their molecular effects on the Sydney rock oyster, Saccostrea glomerata

Publisher: No publisher found

DOI: 10.1016/J.AQUATOX.2016.05.012}

Publication

Water temperature and salinity synergistically affect embryonic and larval development of the tropical black-lip rock oyster Saccostrea echinata

Publisher: Springer Science and Business Media LLC

Date: 25-04-2019

DOI: 10.1007/S10499-019-00381-7

Publication

The interacting effects of diversity and propagule pressure on early colonization and population size

Publisher: Wiley

Publication

Publisher: Elsevier BV

Date: 04-2017

DOI: 10.1016/J.AQUACULTURE.2017.03.004

Publication

Microtopography and antifouling properties of the shell surface of the bivalve molluscs mytilus galloprovincialis and pinctada imbricata

Publisher: Informa UK Limited

Date: 2003

DOI: 10.1080/0892701021000057882

Abstract: Biofouling rapidly covers most submerged surfaces in the marine environment. However, some marine organisms remain clean despite strong fouling pressure. Potential physical inhibitors of fouling were investigated by comparing the thickness, cover, and microtopographic structure of the periostracum of two bivalve molluscs, the blue mussel, Mytilus galloprovincialis, and the pearl oyster, Pinctada imbricata. The cover and thickness of the periostracum were measured on four size classes of each species using histological and microscopic techniques. The periostracum of M. galloprovincialis was significantly thicker than that of P. imbricata and did not differ significantly between size classes. In contrast, the periostracum of P. imbricata decreased significantly with increasing size in both thickness and cover. The microtopography of the shell surface of both species was measured using atomic force microscopy (AFM) and scanning electron microscopy (SEM), which revealed a homogeneous ridged surface for M. galloprovincialis with a uniform distance of 1-2 microns between ridges with a mean depth of 1.5 microns. P. imbricata had a heterogeneous surface structure without a repeating structural pattern. To compare the potential antifouling properties of the shell surface the four size classes of both species were tested in fourteen-week field exposure trials. M. galloprovincialis was rarely fouled over the trial period with less than 10% of M. galloprovincialis shell across all size classes being fouled. In contrast, P. imbricata had significantly higher levels of fouling. Both the proportion of P. imbricata shells fouled and the density of fouling organisms were positively correlated with the age of the shell and the amount of intact periostracum. The relationship between the shell surface microtopography and the intensity of fouling is discussed.

Publication

Larval settlement preference of a native bivalve: the influence of an invasive alga versus native substrata

Publisher: No publisher found

DOI: 10.3354/AB00196}

Publication

Publisher: No publisher found

DOI: 10.1111/1365-2656.12125}

Publication

Estrogen mediated effects in the Sydney rock oyster, Saccostrea glomerata, following field exposures to sewage effluent containing estrogenic compounds and activity

Publisher: Elsevier BV

Date: 09-2012

DOI: 10.1016/J.AQUATOX.2012.03.020

Abstract: The Sydney rock oyster, Saccostrea glomerata, has been demonstrated as a useful biomonitor of estrogenic compounds following laboratory exposures, yet its utility in the assessment of estrogenic exposure and effects under field conditions requires investigation. To achieve this aim, S. glomerata were deployed in Newcastle, Australia in the effluent receiving marine waters of Burwood Beach WWTP (Burwood Beach "near", <50 m from outfall and Burwood Beach "far", 100-150 m from outfall) and reference locations (Redhead, Fingal Island 1 and Fingal Island 2) at depths of 4, 8 and 12 m for six weeks. Effluent receiving waters of Burwood Beach WWTP were found to be a suitable impact location, demonstrated via measurement of estrogenic compounds and activity throughout the deployment. Estrogenic compounds were detected (average of combined solids and liquid fractions) at average concentrations of: 1.42 ng/L for estrone, 0.69 ng/L for 17β estradiol, 3.83 ng/L for estriol (E3), 0.56 ng/L for 17α-ethynylestradiol, 64.2 ng/L for bisphenol A, 7.51 ng/L for 4-nonylphenol and 5.93 ng/L for 4-tert-octylphenol. Total estrogenic activity was estimated at 4.48 ng/L EEQ via the Yeast Estrogen Screen (YES(®)) assay (average of combined solid and liquid fractions). Female vitellogenin gene expression was highest at Burwood Beach locations, yet no significant differences were detected among locations for either sex. Vitellogenin protein was significantly higher (p<0.05) in S. glomerata at Burwood Beach Near compared to reference locations for the 4 and 12 m depths. Increased proportions of females were found at Burwood Beach Near, at 4m depth (p<0.05). Both Burwood Beach locations had higher proportions of mature female gonadal development stages compared to reference locations (p<0.05). Oocyte area was highest at both Burwood Beach locations, but no significant differences were detected among locations. Findings provided further evidence that female S. glomerata may be a suitable candidate species for assessment of effects of estrogenic compounds in Australian waters.

Publication

Identification and characterisation of an ostreid herpesvirus-1 microvariant (OsHV-1 mu-var) in Crassostrea gigas (Pacific oysters) in Australia

Publisher: No publisher found

DOI: 10.3354/DAO02623}

Publication

Evidence that blood flukes (Trematoda: Aporocotylidae) of chondrichthyans infect bivalves as intermediate hosts: indications of an ancient diversification of the Schistosomatoidea

Publisher: Elsevier BV

Date: 11-2017

DOI: 10.1016/J.IJPARA.2017.05.008

Abstract: Blood flukes (Aporocotylidae) of actinopterygians (bony fishes) have been shown to infect freshwater gastropods and marine polychaetes as intermediate hosts. However, no life cycle is known for any aporocotylid of chondrichthyans (cartilaginous fishes) and no adult aporocotylid has been linked to a cercaria infecting a bivalve. Here we report two novel infections that fill these gaps. Cercariae consistent with the family Aporocotylidae were found developing in sporocysts in the gonad of the surf pipi, Donax deltoides Lamarck, 1818 (Bivalvia: Donacidae), from Stockton Beach, central New South Wales, Australia. Adult aporocotylids were found in the heart of the giant shovelnose ray, Glaucostegus typus (Anonymous [Bennett], 1830), from Moreton Bay, southeastern Queensland, Australia. Phylogenetic analyses of the 28S rDNA region generated from the new specimens resulted in phylograms in which the two parasites form a strongly supported clade with Chimaerohemecus trondheimensis van der Land, 1967, the only aporocotylid known from a holocephalan and the only other chondrichthyan-infecting aporocotylid for which sequence data are available. Most marine aporocotylids of actinopterygians also form a strongly supported clade. These findings lead us to hypothesise that the aporocotylids of chondrichthyans are distinct from all other blood flukes in infecting bivalves as intermediate hosts. Putative cophyly between three major blood fluke clades and both definitive and intermediate host groups is consistent with ersification of the Schistosomatoidea over 400million years ago.

Publication

Environmental Impacts of Pearl Farming

Publisher: No publisher found

DOI: 10.1016/B978-0-444-52976-3.00014-0}

Publication

Publisher: Elsevier BV

Date: 05-2017

DOI: 10.1016/J.MARPOLBUL.2017.02.060

Abstract: Vitellogenin (Vtg) is a well-established biomarker of estrogenic exposure in aquatic animals. In vertebrates, Vtg gene transcription is controlled by the estrogen receptors (ERs). Although an ER ortholog is present in molluscs, its role as a transcriptional regulator remains elusive. Here, we tested the hypothesis that in the Sydney rock oyster, Saccostrea glomerata, the ER ortholog activates Vtg gene transcription through specific interaction with its promoter. Luciferase reporter assays indicated that sgER activated both a minimal promoter containing the consensus estrogen-responsive elements (EREs) and the sgVtg promoter in an estrogen-independent manner. The sgVtg promoter-luciferase activation was significantly reduced when any of three putative ERE half sites (½EREs) in the promoter were mutated. Electrophoretic mobility shift assay (EMSA) confirmed that sgER binds specifically to a 68-bp promoter sequence where these ½EREs reside. Overall, the results suggest that sgER is a constitutively active transcription factor that binds and activates the sgVtg promoter.

Publication

Effects of multiple climate change stressors: ocean acidification interacts with warming, hyposalinity, and low food supply on the larvae of the brooding flat oyster Ostrea angasi

Publisher: No publisher found

DOI: 10.1007/S00227-016-2880-4}

Publication

Publisher: No publisher found

DOI: 10.1016/0044-8486(94)90171-6}

Publication

Dietary influence on growth and development of flat oyster, Ostrea angasi (Sowerby, 1871), larvae

Publisher: Hindawi Limited

Date: 12-09-2011

DOI: 10.1111/J.1365-2109.2011.02935.X

Publication

Impacts of ocean acidification on marine shelled molluscs

Publisher: Springer Science and Business Media LLC

Publisher: MDPI AG

Date: 07-11-2011

DOI: 10.3390/W3041005

Publication

Combined exposure to pyrene and fluoranthene and their molecular effects on the Sydney rock oyster, Saccostrea glomerata

Publisher: Elsevier BV

Date: 08-2016

DOI: 10.1016/J.AQUATOX.2016.05.012

Abstract: Polycyclic aromatic hydrocarbons (PAHs) are ubiquitously detected in the water column, associated with particulate matter or in the tissue of marine organisms such as molluscs. PAH exposure and their resultant bioaccumulation in molluscs can cause a range of serious physiological effects in the affected animals. To examine the molecular response of these xenobiotics in bivalves, Sydney rock oysters (Saccostrea glomerata) were exposed to pyrene and fluoranthene for seven days. Chemical analysis of the soft-tissue of PAH stressed S. glomerata confirmed that pyrene and fluoranthene could be bioaccumulated by these oysters. RNA-Seq analysis of PAH-exposed S. glomerata showed a total of 765 transcripts differentially expressed between control and PAH-stressed oysters. Closer examination of the transcripts revealed a range genes encoding enzymes involved in PAH detoxification (e.g. cytochrome P450), innate immune responses (e.g. pathogen recognition, phagocytosis) and protein synthesis. Overall, pyrene and fluoranthene exposure appears to have resulted in a suppression of pathogen recognition and some protein synthesis processes, whereas transcripts of genes encoding proteins involved in clearance of cell debris and some transcripts of genes involved in PAH detoxification were induced in response to the stressors. Pyrene and fluoranthene exposure thus invoked a complex molecular response in S. glomerata, with results suggesting that oysters focus on removing the stressors from their system and dealing with the downstream effects of PAH exposure, potentially at the exclusion of other, less immediate concerns (e.g. protection from infection).

Publication

The constitutively active estrogen receptor (ER) binds and activates the promoter of the vitellogenin (Vtg) gene in the Sydney rock oyster, Saccostrea glomerata

Publisher: No publisher found

DOI: 10.1016/J.MARPOLBUL.2017.02.060}

Publication

Predation by the endemic whelk Tenguella marginalba (Blainville, 1832) on the invasive Pacific oyster Crassostrea gigas (Thunberg, 1793)

Publisher: Informa UK Limited

Date: 07-02-2018

DOI: 10.1080/13235818.2017.1420397

Publication

Halotolerance of the oyster predator, Imogine mcgrathi, a stylochid flatworm from Port Stephens, New South Wales, Australia

Publisher: No publisher found

DOI: 10.1023/A:1012525015850}

Publication

Warm temperature acclimation impacts metabolism of paralytic shellfish toxins from Alexandrium minutum in commercial oysters.

Publisher: Wiley

Date: 29-05-2015

DOI: 10.1111/GCB.12952

Abstract: Species of Alexandrium produce potent neurotoxins termed paralytic shellfish toxins and are expanding their ranges worldwide, concurrent with increases in sea surface temperature. The metabolism of molluscs is temperature dependent, and increases in ocean temperature may influence both the abundance and distribution of Alexandrium and the dynamics of toxin uptake and depuration in shellfish. Here, we conducted a large-scale study of the effect of temperature on the uptake and depuration of paralytic shellfish toxins in three commercial oysters (Saccostrea glomerata and diploid and triploid Crassostrea gigas, n = 252 per species loidy level). Oysters were acclimated to two constant temperatures, reflecting current and predicted climate scenarios (22 and 27 °C), and fed a diet including the paralytic shellfish toxin-producing species Alexandrium minutum. While the oysters fed on A. minutum in similar quantities, concentrations of the toxin analogue GTX1,4 were significantly lower in warm-acclimated S. glomerata and diploid C. gigas after 12 days. Following exposure to A. minutum, toxicity of triploid C. gigas was not affected by temperature. Generally, detoxification rates were reduced in warm-acclimated oysters. The routine metabolism of the oysters was not affected by the toxins, but a significant effect was found at a cellular level in diploid C. gigas. The increasing incidences of Alexandrium blooms worldwide are a challenge for shellfish food safety regulation. Our findings indicate that rising ocean temperatures may reduce paralytic shellfish toxin accumulation in two of the three oyster types however, they may persist for longer periods in oyster tissue.

Publication

ASSESSMENT OF QX AND WINTER MORTALITY DISEASE RESISTANCE OF MASS SELECTED SYDNEY ROCK OYSTERS, SACCOSTREA GLOMERATA (GOULD, 1850), IN THE HAWKESBURY RIVER AND MERIMBULA LAKE, NSW AUSTRALIA

Publisher: No publisher found

DOI: 10.2983/035.032.0309}

Publication

Diet and feeding regimens for larval doughboy scallops, Mimachlamys asperrima

Publisher: No publisher found

DOI: 10.1016/S0044-8486(97)00194-4}

Publication

Evidence that the major hemolymph protein of the Pacific oyster, Crassostrea gigas, has antiviral activity against herpesviruses

Publisher: Elsevier BV

Date: 10-2014

DOI: 10.1016/J.ANTIVIRAL.2014.08.010

Abstract: Viruses belonging to the family Malacoherpesviridae currently pose a serious threat to global production of the Pacific oyster, Crassostrea gigas. Hemolymph extracts from C. gigas are known to have potent antiviral activity. The compound(s) responsible for this broad-spectrum antiviral activity in oyster hemolymph have not been identified. The objective of this study was to identify these antiviral compound(s) and establish whether hemolymph antiviral activity is under genetic control in the Australian C. gigas population. Hemolymph antiviral activity of 18 family lines of C. gigas were assayed using a herpes simplex virus type 1 (HSV-1) and Vero cell plaque reduction assay. Differences in anti-HSV-1 activity between the family lines were observed (p<0.001) with heritability estimated to be low (h(2)=0.21). A glycoprotein that inhibits HSV-1 replication was identified by resolving oyster hemolymph by native-polyacrylamide gel electrophoresis (PAGE) and assaying extracted protein fractions using the HSV-1 and Vero cell plaque assay. Highest anti-HSV-1 activity corresponded with an N-linked glycoprotein with an estimated molecular mass of 21kDa under non-reducing SDS-PAGE conditions. Amino acid sequencing by tandem mass spectrometry revealed this protein matched the major hemolymph protein, termed cavortin. Our results provide further evidence that cavortin is a multifunctional protein involved in immunity and that assays associated with its activity might be useful for marker-assisted selection of disease resistant oysters.

Publication

Publisher: No publisher found

DOI: 10.1016/J.TOXICON.2011.05.010}

Publication

Suspended culture of doughboy scallops Mimachlamys asperrima (Lamarck)

Publisher: No publisher found

DOI: 10.1111/J.1749-7345.1997.TB00853.X}

Publication

Salinity and temperature tolerance of embryos and juveniles of the pearl oyster, Pinctada imbricata Röding

Publisher: Elsevier BV

Date: 2004

DOI: 10.1016/S0044-8486(03)00400-9

Publication

Beyond the obvious: Environmental health implications of polar polycyclic aromatic hydrocarbons

Publisher: Elsevier BV

Date: 02-2019

DOI: 10.1016/J.ENVINT.2018.12.051

Abstract: The genotoxic, mutagenic and carcinogenic effects of polar polycyclic aromatic hydrocarbons (polar PAHs) are believed to surpass those of their parent PAHs however, their environmental and human health implications have been largely unexplored. Oxygenated PAHs (oxy-PAHs) is a critical class of polar PAHs associated with carcinogenic effects without enzymatic activation. They also cause an upsurge in reactive oxygen species (ROS) in living cells. This results in oxidative stress and other consequences, such as abnormal gene expressions, altered protein activities, mutagenesis, and carcinogenesis. Similarly, some nitrated PAHs (N-PAHs) are probable human carcinogens as classified by the International Agency for Research on Cancer (IARC). Heterocyclic PAHs (polar PAHs containing nitrogen, sulphur and oxygen atoms within the aromatic rings) have been shown to be potent endocrine disruptors, primarily through their estrogenic activities. Despite the high toxicity and enhanced environmental mobility of many polar PAHs, they have attracted only a little attention in risk assessment of contaminated sites. This may lead to underestimation of potential risks, and remediation end points. In this review, the toxicity of polar PAHs and their associated mechanisms of action, including their role in mutagenic, carcinogenic, developmental and teratogenic effects are critically discussed. This review suggests that polar PAHs could have serious toxicological effects on human health and should be considered during risk assessment of PAH-contaminated sites. The implications of not doing so were argued and critical knowledge gaps and future research requirements discussed.

Publication

Ocean acidification affects both the predator and prey to alter interactions between the oyster Crassostrea gigas (Thunberg, 1793) and the whelk Tenguella marginalba (Blainville, 1832)

Publisher: No publisher found

DOI: 10.1007/S00227-018-3302-6}

Publication

Effects of the muscle relaxant, magnesium chloride, on the Sydney rock oyster (Saccostrea glomerata)

Publisher: No publisher found

DOI: 10.1016/J.AQUACULTURE.2007.12.004}

Publication

Bacteriophages as Biological Control Agents of Enteric Bacteria Contaminating Edible Oysters

Publisher: Springer Science and Business Media LLC

Date: 27-12-2017

DOI: 10.1007/S00284-017-1424-6

Abstract: Bacterial contamination on seafood resulting from unhygienic food-handling practices causes foodborne diseases and significant revenue losses. Moreover, control measures are complicated by a high prevalence of antibiotic-resistant bacteria. Alternative measures such as the phage therapy, therefore, is considered as an environmental and consumer-friendly biological control strategy for controlling such bacterial contamination. In this study, we determined the effectiveness of a bacteriophage cocktail in controlling E. coli strains [JM 109, ATCC 13706 and the, extended spectrum beta-lactamase resistant strain (ATCC BAA 196)] and S. enterica subsp. enterica (ATCC 13311) as single and combined contaminants of the edible oysters. Five different E. coli-specific phages (belonging to the Siphoviridae family) and a Salmonella phage (belonging to the Tectiviridae family) were successfully isolated from sewage water s les taken from a local sewage treatment plan in the Sunshine Coast region of Australia. Phage treatments applied to the pathogens when they were presented on the oysters as either single or combined hosts, resulted in significant decrease of the number of these bacteria on edible oysters. Results obtained indicated that bacteriophages could have beneficial applications in oyster-processing plants in controlling pathogenic bacterial infestations. This study thus contributes towards ongoing international efforts into the effective use of bacteriophages for biological control purposes.

Publication

The effect of ocean acidification and temperature on the fertilization and embryonic development of the Sydney rock oyster Saccostrea glomerata (Gould 1850)

Publisher: Wiley

Date: 04-08-2009

DOI: 10.1111/J.1365-2486.2009.01895.X

Publication

Coastal acidification impacts on shell mineral structure of bivalve mollusks

Publisher: Wiley

Amount: $285,000.00

Funder: Australian Research Council

View Funded Activity

Wayne O'Connor

Researcher

Research Topics

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ANZSRC Field of Research (FoR)

ANZSRC Socio-Economic Objective (SEO)

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Publications

The Akoya pearl oyster shell as an archival monitor of lead exposure

Longitudinal study of winter mortality disease in Sydney rock oysters Saccostrea glomerata

EMBRYONIC, LARVAL, AND EARLY POSTLARVAL DEVELOPMENT OF THE TROPICAL BLACK-LIP ROCK OYSTER SACCOSTREA ECHINATA

Latitudinal variation in reproductive behavior in the pearl oyster, Pinctada albina sugillata

Mixed Effects of Elevated pCO(2) on Fertilisation, Larval and Juvenile Development and Adult Responses in the Mobile Subtidal Scallop Mimachlamys asperrima (Lamarck, 1819)

Acclimatory processes are likely responsible for metal tolerance in oyster embryos

Identification and characterisation of an ostreid herpesvirus-1 microvariant (OsHV-1 µ-var) in Crassostrea gigas (Pacific oysters) in Australia

Reduced performance of native infauna following recruitment to a habitat-forming invasive marine alga

Are strain genetic effect and heterosis expression altered with culture system and rearing environment in the Portuguese oyster (Crassostrea angulata )?

Acclimatory processes are likely responsible for metal tolerance in oyster embryos

Evaluation of the progeny of the fourth-generation Sydney rock oyster Saccostrea glomerata (Gould, 1850) breeding lines for resistance to QX disease (Marteilia sydneyi) and winter mortality (Bonamia r

Adult exposure influences offspring response to ocean acidification in oysters

Evaluation of alternative suspended culture methods for the commercial scallop, Pecten fumatus Reeve

Are native Saccostrea glomerata and invasive Crassostrea gigas oysters' habitat equivalents for epibenthic communities in south-eastern Australia?

Mechanistic insights into induction of vitellogenin gene expression by estrogens in Sydney rock oysters, Saccostrea glomerata

Effects of 4-nonylphenol and 17 alpha-ethynylestradiol exposure in the Sydney rock oyster, Saccostrea glomerata: Vitellogenin induction and gonadal development

Assessment of temperature or salinity effects on larval development by catecholamine-induced metamorphosis of hatchery-reared flat oyster, Ostrea angasi (Sowerby 1871) larvae

Potential mechanisms underlying estrogen-induced expression of the molluscan estrogen receptor (ER) gene

Wild populations of Sydney rock oysters differ in their proteomic responses to elevated carbon dioxide

Adult exposure to ocean acidification is maladaptive for larvae of the Sydney rock oyster Saccostrea glomerata in the presence of multiple stressors

Exposure to 17α-ethynylestradiol causes dose and temporally dependent changes in intersex, females and vitellogenin production in the Sydney rock oyster

Pearl aquaculture—profitable environmental remediation?

Protein markers of Marteilia sydneyi infection in Sydney rock oysters, Saccostrea glomerata

DISEASE PREVENTION STRATEGIES FOR QX DISEASE (MARTEILIA SYDNEYI) OF SYDNEY ROCK OYSTERS (SACCOSTREA GLOMERATA)

THE EVALUATION OF FRESH ALGAE AND STORED ALGAL CONCENTRATES AS A FOOD SOURCE FOR SYDNEY ROCK OYSTER, SACCOSTREA-COMMERCIALIS (IREDALE AND ROUGHLEY), LARVAE

Are strain genetic effect and heterosis expression altered with culture system and rearing environment in the Portuguese oyster (Crassostreaangulata)?

Evaluation of alternative suspended culture methods for the commercial scallop, Pecten fumatus Reeve

Evidence that blood flukes (Trematoda: Aporocotylidae) of chondrichthyans infect bivalves as intermediate hosts: indications of an ancient diversification of the Schistosomatoidea

Reproductive cycle of Sydney rock oysters, Saccostrea glomerata (Gould 1850) selectively bred for faster growth

Protein markers of Marteilia sydneyi infection in Sydney rock oysters, Saccostrea glomerata

Predicting the Response of Molluscs to the Impact of Ocean Acidification

Exposure to 17 alpha-ethynylestradiol causes dose and temporally dependent changes in intersex, females and vitellogenin production in the Sydney rock oyster

Dietary influence on growth and development of flat oyster, Ostrea angasi (Sowerby, 1871), larvae

Latitudinal variation in reproductive behavior in the pearl oyster, Pinctada albina sugillata

THE EVALUATION OF 12 ALGAL SPECIES AS FOOD FOR JUVENILE SYDNEY ROCK OYSTERS SACCOSTREA-COMMERCIALIS (IREDALE AND ROUGHLEY)

Pearl aquaculture - profitable environmental remediation?

Persistence of Positive Carryover Effects in the Oyster, Saccostrea glomerata, following Transgenerational Exposure to Ocean Acidification

Change in wild-oyster assemblages of Port Stephens, NSW, Australia, since commencement of non-native Pacific oyster (Crassostrea gigas) aquaculture

Temperature and nutrition as factors in conditioning broodstock of the commercial scallop Pecten fumatus Reeve

Differential accumulation of paralytic shellfish toxins from Alexandrium minutum in the pearl oyster, Pinctada imbricata

Differential proteomic responses of selectively bred and wild-type Sydney rock oyster populations exposed to elevated CO2

Environmental stress and disease in pearl oysters, focusing on the Akoya pearl oyster (Pinctada fucata Gould 1850)

Change in wild-oyster assemblages of Port Stephens, NSW, Australia, since commencement of non-native Pacific oyster (Crassostrea gigas) aquaculture

Populations of the Sydney rock oyster, Saccostrea glomerata, vary in response to ocean acidification

Salinity and temperature tolerance of embryos and juveniles of the pearl oyster, Pinctada imbricata Roding

Below‐ground ecosystem engineers enhance biodiversity and function in a polluted ecosystem

Mechanistic insights into induction of vitellogenin gene expression by estrogens in Sydney rock oysters, Saccostrea glomerata

Diet and feeding regimens for larval doughboy scallops, Mimachlamys asperrima

Ocean acidification narrows the acute thermal and salinity tolerance of the Sydney rock oyster Saccostrea glomerata

Resolution of the controversial relationship between Pacific and Portuguese oysters internationally and in Vietnam

Fast-growing oysters show reduced capacity to provide a thermal refuge to intertidal biodiversity at high temperatures

Digenean (Bucephalidae) infections in commercial scallops, Pecten fumatus Reeve, and doughboy scallops, Chlamys (Mimachlamys) asperrima (Lamarck), in Jervis Bay, New South Wales

Effects of 4-nonylphenol and 17α-ethynylestradiol exposure in the Sydney rock oyster, Saccostrea glomerata: Vitellogenin induction and gonadal development

Intertidal oysters reach their physiological limit in a future high-CO2 world

The Akoya pearl oyster shell as an archival monitor of lead exposure

Commercial assessment of growth and mortality of fifth-generation Sydney rock oystersSaccostrea glomerata(Gould, 1850) selectively bred for faster growth

Cadmium uptake and zinc-cadmium antagonism in Australian tropical rock oysters: Potential solutions for oyster aquaculture enterprises

Trophic transfer of microplastics and mixed contaminants in the marine food web and implications for human health

The density and spatial arrangement of the invasive oyster Crassostrea gigas determines its impact on settlement of native oyster larvae

Sensitivity to ocean acidification differs between populations of the Sydney rock oyster: Role of filtration and ion-regulatory capacities

Genomic DNA variation confirmed Seriola lalandi comprises three different populations in the Pacific, but with recent divergence

DETACHMENT OF COMMERCIAL SCALLOP PECTEN-FUMATUS, SPAT FROM SETTLEMENT SUBSTRATES

Intertidal oysters reach their physiological limit in a future high-CO2 world

The density and spatial arrangement of the invasive oyster Crassostrea gigas determines its impact on settlement of native oyster larvae

Potential mechanisms underlying estrogen-induced expression of the molluscan estrogen receptor (ER) gene

Aquatic zooremediation: deploying animals to remediate contaminated aquatic environments

Predation by the endemic whelk Tenguella marginalba (Blainville, 1832) on the invasive Pacific oyster Crassostrea gigas (Thunberg, 1793)

Temperature and nutrition as factors in conditioning broodstock of the commercial scallop Pecten fumatus Reeve

Impact of Oyster Farming on Rural Community Sustainability in North Vietnam

Uptake, distribution and depuration of paralytic shellfish toxins from Alexandrium minutum in Australian greenlip abalone, Haliotis laevigata

Differential proteomic responses of selectively bred and wild‐type Sydney rock oyster populations exposed to elevated CO2

Spawning induction and fertilisation in the doughboy scallop Chlamys (Mimachlamys) asperrima

Differential proteomic responses of selectively bred and wild‐type Sydney rock oyster populations exposed to elevated CO₂

Populations of Pacific Oysters Crassostrea gigas Respond Variably to Elevated CO₂ and Predation by Morula marginalba