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Dissertations / Theses on the topic 'Sydney rock oyster'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Schrobback, Peggy. "Economic analyses of Australia's Sydney rock oyster industry." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/83730/1/Peggy_Schrobback_Thesis.pdf.

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This thesis provides the first comprehensive assessment of the economic viability of Australia's Sydney rock oyster industry and forms the bases for future policy and industry management recommendations. In the four separate studies of the thesis, the socio-economic profile of the industry, the market price formation dynamics within Australia's oyster market, efficiency and productivity levels and the potential impact of climate change and market dynamics on the industry's future revenue were investigated. Findings of this project suggest, for example, that market dynamics may pose a greater t

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2

Dove, Michael Colin. "Effects of estuarine acidification on survival and growth of the Sydney rock oyster Saccostrea glomerata." Connect to this title online, 2003. http://www.library.unsw.edu.au/~thesis/adt-NUN/public/adt-NUN20050125.110005/index.html.

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3

Rubio, Ana M. "Environmental influences on the sustainable production of the Sydney rock oyster Saccostrea glomerata : a study in two Southeastern Australian estuaries /." View thesis entry in Australian Digital Theses Program, 2007. http://thesis.anu.edu.au/public/adt-ANU20080618.091057/index.html.

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4

Arumugaswamy, Ramakrishnaswamy, Hawkesbury Agricultural College, and Faculty of Food and Environmental Sciences. "Studies on the presence and survival of campylobacter species in the Sydney rock oyster (Crassostrea commercialia)." THESIS_FES_XXX_Arumugaswamy_R.xml, 1985. http://handle.uws.edu.au:8081/1959.7/412.

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A direct enrichment procedure has been developed for selectively recovering low numbers of Campylobacter jejuni and Campylobacter coli from oyster tissue. This procedure makes use of a selective enrichment step, using a broth medium composed of 2% proteose peptone, 1% yeast extract, 0.2% potassium L-aspartate, 0.25% sodium chloride as basal medium (PYA broth)plus 0.2% bacteriological charcoal, polymyxin (5000 IU/ litre), cefoperazone(30 mg/litre), trimethoprim (10 mg/litre), cycloheximide (50 mg/litre), sodium pyruvate (0.25g/litre), sodium metabisulphate (0.25g/litre) and ferrous sulphate (0.

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5

Dove, Michael Colin Geography Program UNSW. "Effects of estuarine acidification on survival and growth of the Sydney rock oyster Saccostrea glomerata." Awarded by:University of New South Wales. Geography Program, 2003. http://handle.unsw.edu.au/1959.4/20485.

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Estuarine acidification, caused by disturbance of acid sulfate soils (ASS), is a recurrent problem in eastern Australia. Affected waters are characterised by low pH and elevated concentrations of metals, principally aluminium and iron. The effects of acid and elevated metal concentrations associated with ASS, on adult Sydney rock oysters, have not been previously investigated. This study tested links between ASS-affected drainage, subsequent estuarine acidification and Sydney rock oyster production problems on the Hastings and Manning Rivers, mid north coast New South Wales. The primary object

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6

Arumugaswamy, Ramakrishnaswamy. "Studies on the presence and survival of campylobacter species in the Sydney rock oyster (Crassostrea commercialia)." Thesis, View thesis, 1985. http://handle.uws.edu.au:8081/1959.7/412.

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A direct enrichment procedure has been developed for selectively recovering low numbers of Campylobacter jejuni and Campylobacter coli from oyster tissue. This procedure makes use of a selective enrichment step, using a broth medium composed of 2% proteose peptone, 1% yeast extract, 0.2% potassium L-aspartate, 0.25% sodium chloride as basal medium (PYA broth)plus 0.2% bacteriological charcoal, polymyxin (5000 IU/ litre), cefoperazone(30 mg/litre), trimethoprim (10 mg/litre), cycloheximide (50 mg/litre), sodium pyruvate (0.25g/litre), sodium metabisulphate (0.25g/litre) and ferrous sulphate (0.

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7

Arumugaswamy, Ramakrishnaswamy. "Studies on the presence and survival of campylobacter species in the Sydney rock oyster (Crassostrea commercialia) /." View thesis, 1985. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20031205.122556/index.html.

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8

Nguyen, Dien. "Assessing genetic diversity in cultured aquatic species : the Sydney Rock Oyster (Saccostrea glomerata) stock improvement program as a model." Thesis, Queensland University of Technology, 2009. https://eprints.qut.edu.au/41460/1/Dien_Nguyen_Thesis.pdf.

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Genetic variation is the resource animal breeders exploit in stock improvement programs. Both the process of selection and husbandry practices employed in aquaculture will erode genetic variation levels overtime, hence the critical resource can be lost and this may compromise future genetic gains in breeding programs. The amount of genetic variation in five lines of Sydney Rock Oyster (SRO) that had been selected for QX (Queensland unknown) disease resistance were examined and compared with that in a wild reference population using seven specific SRO microsatellite loci. The five selected line

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9

Rubio, Zuazo Ana Maria, and anarubio zuazo@gmail com. "Environmental influences on the sustainable production of the Sydney rock oyster Saccostrea glomerata : a study in two southeastern Australian estuaries." The Australian National University. Centre for Resource and Environmental Studies, 2008. http://thesis.anu.edu.au./public/adt-ANU20080618.091057.

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There has been a continuous decline in both the production and general performance of the SRO in NSW estuaries over the past three decades. The relationship of this decline to both environmental and oyster-density related factors are assessed in this thesis. This question has been examined at different scales: a large scale that compares two different estuaries (Clyde and Shoalhaven Rivers, southern NSW); a regional scale that encompasses variations within an estuary and, at a lease scale that examines processes pertaining to individual or small groups of oysters. Levels of inorganic nutrients

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10

Hand, RE. "Commercialisation of Triploid Sydney Rock Oysters Saccostrea Glomerata in New South Wales growth survival and meat condition." Thesis, Honours thesis, University of Tasmania, 2002. https://eprints.utas.edu.au/7571/1/Front_Matter_Hand.pdf.

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To aid the commercialisation of triploid technology for Sydney rock oysters (Succostreu glomerafa) in NSW, triploids and diploids were evaluated for growth, mortality and meat condition on commercial oyster farms throughout the state. After 2% years, triploids were on average 30.7% heavier and 8.6% larger in shell height than same parent diploids. Mortality of triploids was significantly lower (p < 0.01) or not significantly different @ > 0.05) from that of diploids at 12 of the 13 sites. Average cumulative mortality after 2% years across the 13 sites was 28% for diploids compared to on

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11

English, Louise (Louise Jasmins). "Genetic diversity in oysters." Thesis, 2001. https://eprints.utas.edu.au/19736/1/whole_EnglishLouiseJasmins2001_thesis.pdf.

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This project examined the effects on genetic diversity of oysters by hatchery techniques and selective breeding. The edible oyster industry in Australia comprises of two main species: Crassostrea gigas and Saccostrea glomerata, which are produced by hatcheries or natural spatfall, respectively. This study examined the levels of genetic diversity as a result of unintentional selection in C. gigas, and as a result of intentional selection (a selective breeding program to increase meat weight) in S. glomerata. This study has implications for aquaculture species worldwide as it examines the

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12

Hand, Rosalind Elizabeth. "Commercialisation of triploid Sydney rock oysters, Saccostrea Glomerata, in New South Wales : growth, survival and meat condition." Thesis, 2002. https://eprints.utas.edu.au/19764/1/whole_HandRosalindElizabeth2002_thesis.pdf.

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To aid the commercialisation of triploid technology for Sydney rock oysters (Saccostrea glomerata) in NSW, triploids and diploids were evaluated for growth, mortality and meat condition on commercial oyster farms throughout the state. After 21/2 years, triploids were on average 30.7% heavier and 8.6% larger in shell height than same parent diploids. Mortality of triploids was significantly lower (p < 0.01) or not significantly different (p > 0.05) from that of diploids at 12 of the 13 sites. Average cumulative mortality after 21/2 years across the 13 sites was 28% for diploids compared

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13

Sarwer, Md Golam. "Impact of ecological changes on Sydney rock oyster genetics and microbiomes." Thesis, 2020. http://hdl.handle.net/1959.7/uws:67286.

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Within Australia, the Sydney rock oyster (SRO) is cultivated mainly in New South Wales and Southern Queensland. Their cultivation is now threatened by many biotic and abiotic stressors such as QX (Queensland Unknown), winter mortality, temperature and salinity variation due to rainfall. Changing environmental conditions influence the oyster's immune system along with the presence of pathogens and virulence. The microbiome also fluctuates with biotic and abiotic changes, but sometimes the relationship between host, environment and pathogens is not visible. Therefore, I have used SRO as a model

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14

Pearson, Benjamin. "Bioaccumulation of heavy metals in the Sydney rock oyster, saccostrea commercialis (Iredale & Roughley)." 1993. http://hdl.handle.net/2100/629.

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University of Technology, Sydney. Faculty of Science.<br>The suitability of the Sydney rock oyster (Saccostrea commercialis) as a monitor of heavy metal contamination in estuarine and coastal waters was assessed. Case study I examined the influence of body size (ie: soft tissue dry weight) on the tissue concentrations of Cu, Zn, and Fe. Sampling was replicated both spatially and temporally in order to determine whether the size-metal relationship for these elements varied with geographical location (ie: differing levels of environmental contamination) or season. All oysters were collected from

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15

Holliday, J. E. "Nursery culture of Sydney rock oysters, Saccostrea commercialis (Iredale & Roughley, 1933) and Pacific oysters, Crassostrea gigas (Thunberg 1793)." Thesis, 1995. https://eprints.utas.edu.au/20333/1/whole_HollidayJE1995_thesis.pdf.

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This study of settlement, nursery and growing techniques for Sydney rock oysters, Saccostrea commercialis, and Pacific oysters, Crassostrea gigas, was aimed at developing and evaluating production systems for juvenile oysters (spat). Settlement, retention (spat retained within nursery units from settlement or stocking to harvest), survival and growth of juvenile wild and hatchery produced oysters were assessed in relation to systems design and management at sites in New South Wales (NSVV), Australia.

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16

Yingprasertchai, Thanvapon Senee. "Influence of metal exposure history on metal tolerance in the Sydney rock oyster (Saccostrea glomerata)." Thesis, 2016. http://hdl.handle.net/1959.13/1312288.

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Research Doctorate - Doctor of Philosophy (PhD)<br>Tolerance to heavy metal pollution has been described in many living organisms exposed to heavy metals at sublethal levels. Organisms living in metal contaminated sites have to develop physiological processes to respond to metal exposure to ensure survival and reproduction. The organisms may respond to this challenge through physiological acclimation or adaptation (the selection of resistant genotypes). This thesis was focused on the influence of prior metal exposure history on metal tolerance in Sydney rock oyster, <i>Saccostrea glomerata</i>

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17

Krassoi, Frederick Rudolf. "Population ecology of the Sydney rock oyster saccostrea commercialis and the pacific oyster crassostrea gigas in a New South Wales estuary." 2001. http://hdl.handle.net/2100/1107.

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University of Technology, Sydney, 2001.<br>The study of place was often divided between the spatial interests of geographers and local historians intent on constructing heroic lineages. In the period of accelerated globalization however, discrete discourses on time and space are no longer tenable. Histories of place engage the transdisciplinary approach of recent scholarship in understanding the complexities and fluidity of the world in which we live. Places are constructed out of the enmeshing of the material, social and cultural. The reasons why people migrate both within and to particular p

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18

Ogburn, Damian M. "The NSW Oyster Industry: A Risk Indicator of Sustainable Coastal Policy and Practice." Phd thesis, 2011. http://hdl.handle.net/1885/8558.

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Estuaries are the 'door mat' of human activity on land. They are also highly valued by the community. The New South Wales (NSW) oyster industry is Australia's oldest farming enterprise, dating back to the pre-European settlement era and as a consequence has social and cultural significance. Oyster farmers have developed generations of understanding and professional and intimate observation of the subtleties and frailties of NSW estuaries, cultivating their shells on a daily basis. The key motivation for this study is that the NSW oyster industry is a risk indicator of sustainable coastal catch

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19

Nguyen, Thi Hong Tham. "Molecular cloning and characterisation of two insulin-like growth factor binding protein genes (sgIGFBP-5 AND sgIGFBP-7) from the Sydney rock oyster Saccostrea glomerata." Thesis, 2020. http://hdl.handle.net/1959.13/1411170.

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Research Doctorate - Doctor of Philosophy (PhD)<br>Insulin-like growth factors (IGFs) play crucial roles in regulating growth, development and metabolism in animals. IGFs are complexed with specific binding proteins known as IGF binding proteins (IGFBPs), which modulate, either stimulate or inhibit, the action of IGFs. Most of the current literature on oyster biology focuses on reproductive cycle and growth patterns as well as their relationship with their ambient environmental conditions. Compared with vertebrates, little is known about the biology of IGFBPs and the molecular mechanisms invol

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20

Rubio, Zuazo Ana Maria. "Environmental influences on the sustainable production of the Sydney rock oyster Saccostrea glomerata : a study in two southeastern Australian estuaries." Phd thesis, 2007. http://hdl.handle.net/1885/49349.

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There has been a continuous decline in both the production and general performance of the SRO in NSW estuaries over the past three decades. The relationship of this decline to both environmental and oyster-density related factors are assessed in this thesis. This question has been examined at different scales: a large scale that compares two different estuaries (Clyde and Shoalhaven Rivers, southern NSW); a regional scale that encompasses variations within an estuary and, at a lease scale that examines processes pertaining to individual or small groups of oysters. ... A set of environmental in

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21

Tran, Thi Kim Anh. "Investigation of the molecular mechanisms underlying estrogen-mediated induction of vitellogenin gene expression in the Sydney rock oyster, Saccostrea glomerata." Thesis, 2017. http://hdl.handle.net/1959.13/1343169.

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Research Doctorate - Doctor of Philosophy (PhD)<br>Environmental estrogens are known to interfere with normal development and reproduction in a wide range of marine invertebrates. Previous studies have developed an oyster biomonitor to indicate the presence of estrogenic compounds in marine environments through exploiting the induction of the egg yolk protein precursor vitellogenin (Vtg). Despite this advance, the mechanism through which estrogens exert their action on Vtg gene expression, in particular the functional role of the estrogen receptor (ER), is currently unknown. In an attempt to f

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22

Parker, Laura M. "Climate change : the synergisitic impacts of elevated pCO2 and temperature on the early development of oysters." Thesis, 2010. http://handle.uws.edu.au:8081/1959.7/507161.

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Throughout the Earth’s history climate change has led to a proliferation and disappearance of species thus playing a major role in shaping the structure of marine ecosystems. Over the next century, rising atmospheric carbon dioxide (CO2) levels will cause a rise in the partial pressure of CO2 (pCO2) in the surface ocean leading to a reduction in surface ocean pH from 8.1 to 7.7 units and a reduction in the concentration of surface ocean carbonate ions (in a process known as ‘ocean acidification’) vital in the construction of calcium carbonate (CaCO3) shells and skeletons. At the same time, thi

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