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Dissertations / Theses on the topic 'Pagrus auratus'

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Published: 4 June 2021

Last updated: 20 February 2023

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1

Sumpton, Wayne Donald. "Population biology and management of snapper (Pagrus auratus) in Queensland /." St. Lucia, Qld, 2002. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16381.pdf.

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2

Usmar, Natalie R. "Ontogeny and ecology of snapper (Pagrus auratus) in an estuary, the Mahurangi Harbour /." e-Thesis University of Auckland, 2009. http://hdl.handle.net/2292/5642.

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Thesis (PhD--Marine Science)--University of Auckland, 2009.<br>" A thesis submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Marine Science." Includes bibliographical references (leaves 161-173).

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3

Francis, Malcolm 1954. "Population dynamics of juvenile snapper (Pagrus auratus) in the Hauraki Gulf." Thesis, University of Auckland, 1992. http://hdl.handle.net/2292/1976.

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The population dynamics of juvenile snapper, Pagrus auratus, were investigated in the Hauraki Gulf, north-eastern New Zealand, between 1982 and 1990. Attention focused on age and growth, temporal and spatial variation in abundance, and recruitment. Daily increment formation was validated in the sagittae of snapper up to about 160 days old. Increment width varied with time of year, and snapper age, and increments were not resolvable with a light microscope during winter. Increment counts inside a prominent metamorphic mark showed that larval duration was 18-32 days, and was inversely related to

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4

Jackson, Gary. "Fisheries biology and management of pink snapper, Pagrus auratus, in the inner gulfs of Shark Bay, Western Australia /." Murdoch University Digital Theses Program, 2007. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20081222.105104.

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5

Dodd, Suzannah. "The role of non-indigenous benthic macrofauna in the diet of snapper (Pagrus auratus)." AUT University, 2009. http://hdl.handle.net/10292/898.

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Snapper, Pagrus auratus is a valuable coastal fish species in New Zealand and forms an important commercial and recreational fishing industry in the north-east of New Zealand. Previous studies revealed evidence that this carnivorous, primarily benthic feeder consumes a non-indigenous macrobenthic species. Many non-indigenous macrobenthic species have now become established in New Zealand waters. For example, in Rangitoto Channel, Hauraki Gulf, non-indigenous macrobenthic species are prolific, with three bivalve species in particular having thriving populations: Limaria orientalis, Musculista s

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6

Usmar, Natalie R. "Ontogeny and ecology of snapper (Pagrus auratus) in an estuary, the Mahurangi Harbour." Thesis, University of Auckland, 2010. http://hdl.handle.net/2292/5642.

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This thesis examined the use of an estuary by the sparid Pagrus auratus, commonly known as snapper. The density and distribution of snapper (juveniles through to adults) was quantified over multiple spatial and temporal scales and associated with habitat. Juveniles enter or are spawned within the Mahurangi Harbour over the warmer months, with densities highest in March. Ontogenetic shifts in fine-scale habitat occurred. Fine-scale analysis from the beam trawl showed juvenile snapper (< 10 cm) were mostly associated with horse mussels. Larger juveniles (> 4 cm) were also associated with bare ar

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7

Booth, Mark Anthony. "Investigation of the Nutritional Requirements of Australian Snapper Pagrus Auratus (Bloch & Schneider, 1801)." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16138/1/Mark_Booth_Thesis.pdf.

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This thesis describes research designed to increase our knowledge of the nutritional requirements of Australian snapper Pagrus auratus and provide information on the potential of Australian feed ingredients to reduce the level of fishmeal in diets for this species. The apparent digestibility of organic matter (OM), crude protein (CP), crude fat (CF) and gross energy (GE) from selected animal, cereal or oilseed meals incorporated at different inclusion levels was determined. Snapper were extremely efficient at digesting the CP, CF and GE from fishmeal and rendered animal meals (range 80-100

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8

Booth, Mark Anthony. "Investigation of the Nutritional Requirements of Australian Snapper Pagrus Auratus (Bloch & Schneider, 1801)." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16138/.

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This thesis describes research designed to increase our knowledge of the nutritional requirements of Australian snapper Pagrus auratus and provide information on the potential of Australian feed ingredients to reduce the level of fishmeal in diets for this species. The apparent digestibility of organic matter (OM), crude protein (CP), crude fat (CF) and gross energy (GE) from selected animal, cereal or oilseed meals incorporated at different inclusion levels was determined. Snapper were extremely efficient at digesting the CP, CF and GE from fishmeal and rendered animal meals (range 80-100%) w

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9

au, corey wakefield@fish wa gov, and Corey Brion Wakefield. "Latitudinal and temporal comparisons of the reproductive biology and growth of snapper, Pagrus auratus (Sparidae), in Western Australia." Murdoch University, 2006. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20080530.105016.

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This study focused on obtaining sound quantitative data on the reproductive biology, length and age compositions and growth of the snapper Pagrus auratus in the waters off Carnarvon at ca 25oS and Perth at ca 32oS on the west coast of Australia and at ca 34oS on the south coast of Western Australia. Sampling thus encompassed both sub-tropical and temperate waters and the geographical range within which this species is abundant in Western Australia. The resultant data were used to explore the ways in which the biological characteristics of P. auratus differ with latitude and thus water temperat

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10

Ling, Nicholas. "The development, ultrastructure and biomechanics of the swimbladder of the New Zealand snapper, Pagrus auratus." Thesis, University of Auckland, 1990. http://hdl.handle.net/2292/2012.

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The eggs and larvae of the New Zealand snapper Pagrus auratus are pelagic with early buoyancy provided by dilute body fluids. The swimbladder begins to develop on the third day after hatch from a dorsal evagination of the gut tube. Communication w1h the gut is lost on about the tenth day following pneumatic inflation at around day eight. At this age the gas gland system appears fully functional and capable of secreting gas. By the age of settlement at around 30 days the swimbladder is a fully functional replica of the adult form except for the lack of a resorbent capillary system which does no

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11

McGlennon, David. "The fisheries biology and population dynamics of snapper Pagrus auratus in northern Spencer Gulf, South Australia /." Title page, table of contents and abstract only, 2003. http://web4.library.adelaide.edu.au/theses/09PH/09phm4789.pdf.

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12

Pankhurst, Patricia Melva. "Growth, development and visual ontogeny of two temperate reef teleosts Pagrus auratus, (Sparidae) and Forsterygion varium, (Tripterygiidae)." Thesis, University of Auckland, 1991. http://hdl.handle.net/2292/2000.

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Growth, development and behaviour were examined in artificially reared larval Pagrus auratus and Forsterygion varium, from the time of hatching. Yolk-sac larval P.auratus hatched at a small size (2.00mm SL), without functional eyes, mouth or digestive tract, and for three days spent long periods at rest. Growth was initially rapid but slowed by 3 days as yolk reserves neared depletion. By days 4-5, the mouth had opened, eyes were functional, yolk was depleted, and a rudimentary gut had formed. Larvae were now able to maintain a horizontal swimming mode and were actively searching for and attac

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13

Tugiyono. "Metabolic enzymes and mixed-function oxygenase (MFO) system in pink snapper (Pagrus auratus): biochemical and histological relationships." Thesis, Curtin University, 2001. http://hdl.handle.net/20.500.11937/1937.

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The environmental health of aquatic ecosystems depends amongst others, on the chemical pollution coming from activities in the catchment's area. In the Swan River Estuary, Western Australia, the chemical pollutants of concern released into the river are petroleum hydrocarbons and sodium pentachlorophenate (NaPCP). Decreased water quality causes a loss of biotic diversity especially amongst fish populations. The health of aquatic ecosystems can be monitored by fish health, especially fish located at higher levels in the food chain. Pink snapper (Pagrus auratus), an endemic Western Australian fi

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14

Tugiyono. "Metabolic enzymes and mixed-function oxygenase (MFO) system in pink snapper (Pagrus auratus) : biochemical and histological relationships /." Curtin University of Technology, Department of Environmental Biology, 2001. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=13744.

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The environmental health of aquatic ecosystems depends amongst others, on the chemical pollution coming from activities in the catchment's area. In the Swan River Estuary, Western Australia, the chemical pollutants of concern released into the river are petroleum hydrocarbons and sodium pentachlorophenate (NaPCP). Decreased water quality causes a loss of biotic diversity especially amongst fish populations. The health of aquatic ecosystems can be monitored by fish health, especially fish located at higher levels in the food chain. Pink snapper (Pagrus auratus), an endemic Western Australian fi

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15

Wakefield, Corey Brion. "Latitudinal and temporal comparisons of the reproductive biology and growth of snapper, Pagrus auratus (Sparidae), in Western Australia." Thesis, Wakefield, Corey Brion (2006) Latitudinal and temporal comparisons of the reproductive biology and growth of snapper, Pagrus auratus (Sparidae), in Western Australia. PhD thesis, Murdoch University, 2006. https://researchrepository.murdoch.edu.au/id/eprint/382/.

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This study focused on obtaining sound quantitative data on the reproductive biology, length and age compositions and growth of the snapper Pagrus auratus in the waters off Carnarvon at ca 25oS and Perth at ca 32oS on the west coast of Australia and at ca 34oS on the south coast of Western Australia. Sampling thus encompassed both sub-tropical and temperate waters and the geographical range within which this species is abundant in Western Australia. The resultant data were used to explore the ways in which the biological characteristics of P. auratus differ with latitude and thus water temperat

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16

Wakefield, Corey Brion. "Latitudinal and temporal comparisons of the reproductive biology and growth of snapper, Pagrus auratus (Sparidae), in Western Australia." Wakefield, Corey Brion (2006) Latitudinal and temporal comparisons of the reproductive biology and growth of snapper, Pagrus auratus (Sparidae), in Western Australia. PhD thesis, Murdoch University, 2006. http://researchrepository.murdoch.edu.au/382/.

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Abstract:

This study focused on obtaining sound quantitative data on the reproductive biology, length and age compositions and growth of the snapper Pagrus auratus in the waters off Carnarvon at ca 25oS and Perth at ca 32oS on the west coast of Australia and at ca 34oS on the south coast of Western Australia. Sampling thus encompassed both sub-tropical and temperate waters and the geographical range within which this species is abundant in Western Australia. The resultant data were used to explore the ways in which the biological characteristics of P. auratus differ with latitude and thus water temperat

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17

Coxon, Sarah Elizabeth. "The exercise physiology of snapper (Pagrus auratus): implications for the better commercial harvesting of an iconic New Zealand finfish." Thesis, University of Canterbury. Biological Sciences, 2014. http://hdl.handle.net/10092/9430.

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Worldwide, an increasing demand for fish and fisheries products, together with socioeconomic pressure for industry expansion, is placing considerable pressure on wild fish stocks – more than 80% of which are considered by the Food and Agriculture Organisation of the United Nations (FAO) to be either maximally- or over-exploited. Adding value to the existing catch and/or improving the sustainability of current wild capture methods may offer a means of providing industry growth while negating the need for increased landings. In particular, the peri-mortem condition of a fish plays an integral ro

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18

au, gjackson@fish wa gov, and Gary Jackson. "Fisheries biology and management of pink snapper, Pagrus auratus, in the inner gulfs of Shark Bay, Western Australia." Murdoch University, 2008. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20081222.105104.

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This study explored an important aspect of the basis for the highly complex population structure of pink snapper (Pagrus auratus) within the inner gulfs of Shark Bay, investigated how growth and reproduction differ among these closely-adjacent but separate stocks, and obtained biomass estimates for each stock that are essential for the sustainable management of the regionally-important recreational pink snapper fishery. Using ichthyoplankton data in combination with hydrodynamic modelling, P. auratus eggs and larvae were shown to be retained within localized meso-scale eddies that were coinci

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19

Jackson, Gary. "Fisheries biology and management of pink snapper, Pagrus auratus, in the inner gulfs of Shark Bay, Western Australia." Thesis, Jackson, Gary (2008) Fisheries biology and management of pink snapper, Pagrus auratus, in the inner gulfs of Shark Bay, Western Australia. PhD thesis, Murdoch University, 2008. https://researchrepository.murdoch.edu.au/id/eprint/664/.

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This study explored an important aspect of the basis for the highly complex population structure of pink snapper (Pagrus auratus) within the inner gulfs of Shark Bay, investigated how growth and reproduction differ among these closely-adjacent but separate stocks, and obtained biomass estimates for each stock that are essential for the sustainable management of the regionally-important recreational pink snapper fishery. Using ichthyoplankton data in combination with hydrodynamic modelling, P. auratus eggs and larvae were shown to be retained within localized meso-scale eddies that were coincid

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20

Jackson, Gary. "Fisheries biology and management of pink snapper, Pagrus auratus, in the inner gulfs of Shark Bay, Western Australia." Jackson, Gary (2008) Fisheries biology and management of pink snapper, Pagrus auratus, in the inner gulfs of Shark Bay, Western Australia. PhD thesis, Murdoch University, 2008. http://researchrepository.murdoch.edu.au/664/.

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Abstract:

This study explored an important aspect of the basis for the highly complex population structure of pink snapper (Pagrus auratus) within the inner gulfs of Shark Bay, investigated how growth and reproduction differ among these closely-adjacent but separate stocks, and obtained biomass estimates for each stock that are essential for the sustainable management of the regionally-important recreational pink snapper fishery. Using ichthyoplankton data in combination with hydrodynamic modelling, P. auratus eggs and larvae were shown to be retained within localized meso-scale eddies that were coincid

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21

Tapp, Nadia. "Do size differences of juvenile snapper (Pagrus auratus) in two regions of Shark Bay, Western Australia, reflect different environmental conditions." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2003. https://ro.ecu.edu.au/theses/1325.

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Aspects of the population biology of juvenile Pagrus auratus in the western gulf of Shark Bay, Western Australia, were investigated to explore the causes of an observed size difference between 0+ fish (first year of life) in the northern and southern regions of that gulf. Five trawl surveys were conducted in each region of the western gulf, from November 2000 to December 2001, to collect juvenile P. auratus. The 0+ fish from the northern region were found to be consistently greater in length by between 10 and 20mm LCF, than those in the southern region, thereby confirming those observed size d

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22

Pham, Duc Hung. "Growth and physiological responses of snapper (Pagrus auratus) and cobia (Rachycentron canadum) fed various inclusion levels of selenium supplemented lupin meal as fishmeal replacement diets." Thesis, Curtin University, 2016. http://hdl.handle.net/20.500.11937/48523.

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The nutritional effects of dietary selenium and lupin meal in snapper Pagrus auratus and cobia Rachycentron canadum were evaluated. Dietary selenium supplementation improved growth and physiological responses of cobia, but not in snapper. Dietary selenium supplementation improved growth, feed utilisation and physiological responses of cobia fed lupin-based diets. Both species showed symptoms of selenium toxicity after fed excessive selenium levels. Adverse effects were observed in snapper and cobia fed high inclusion levels of lupin.

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23

"Effects of diet and exogenous hormone administration of growth, digestive functions and tissue composition of the red seabream (Chrysophrys major)." Chinese University of Hong Kong, 1987. http://library.cuhk.edu.hk/record=b5885805.

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24

Cleary, JJ. "The effect of stress on reproduction in snapper (Pagrus auratus)." Thesis, 1998. https://eprints.utas.edu.au/19061/1/whole_ClearyJenniferJane1997_thesis.pdf.

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Stress inhibits reproduction in most fish and can be exerted through normal hatchery practices in aquaculture. Previous research with wild New Zealand snapper, has shown inhibitory effects of stress on reproduction, however, there is no information on the effect of stress in captive or domesticated stocks. This study examines the role of stress in the reproduction of snapper, by determining the effect of capture and confinement on plasma steroid levels, gonadal condition, the ovulatory response to exogenous hormone treatment and in vitro ovarian steroidogenesis. The effects of stress w

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25

Morrison, RN. "Aspects of the acquired immune response of snapper (Pagrus auratus)." Thesis, 2002. https://eprints.utas.edu.au/20965/1/whole_MorrisonRichardNeil2002_thesis.pdf.

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Snapper (Pagrus auratus) are part of a developing marine aquaculture industry in Australia. However, little is known about the immune system of this species. This study investigated :fundamental aspects of the acquired immune response of snapper. Initially, snapper lg was purified by Staphylococcal protein A (SpA)-agarose affmity chromatography and polyclonal and monoclonal antisera were produced against the purified product then characterised by indirect ELISA, Western blot and flow cytometry. The polyclonal anti-snapper lg antisera bound to both heavy (H) and light (L) chains of reduced snap

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26

Cook, Mathew Thomas. "Modulation of phagocyte activity in cultured snapper (Pagrus auratus) /." 2003. http://arrow.unisa.edu.au:8081/1959.8/79032.

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27

Fielder, _D _Stewart(Donald Stewart). "Improvement of intensive larval rearing and evaluation of inland saline groundwater for aquaculture of snapper, Pagrus auratus." Thesis, 2003. https://eprints.utas.edu.au/19770/1/whole_FielderDonaldStewart2003_thesis.pdf.

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This thesis identified optimal physical rearing regimes for Australian snapper, Pagrus auratus larvae, the suitability of saline groundwater for snapper culture, and the effects of salinity and potassium-deficient saline groundwater on osmoregulation of snapper. The effects of photoperiod, salinity and temperature on growth, survival, onset of feeding, swimbladder inflation, presence of urinary calculi and tail flexion of first-feeding (3 days after hatching; dah) to pre-metamorphosis (21-32 dah) snapper larvae were determined in a series of factorial experiments conducted in specially d

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28

Flowers, Timothy John. "Metabolic and osmoregulatory responses of snapper (Pagrus auratus), mulloway (Argyrosomus japonicus) and yellowtail kingfish (Seriola lalandi) in saline groundwater." Thesis, 2010. https://eprints.utas.edu.au/22267/1/whole_FlowersTimothyJohn2010_thesis.pdf.

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29

Saunders, Richard James. "The reproductive biology and recruitment dynamics of snapper, Chrysophrys auratus." 2009. http://hdl.handle.net/2440/53294.

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The population dynamics and fishery productivity of snapper, Chrysophrys auratus, in South Australia are strongly driven by inter-annual variation in recruitment. This variable recruitment produces the occasional strong year-class which, over a number of years, results in a cycle of increasing and then decreasing biomass. The aim of this study was to develop an understanding of the recruitment dynamics of snapper through a study of the reproductive biology of adults, as well as the biology and ecology of 0+ recruits. Field sampling was done through 2006 to 2008 in northern Spencer Gulf, the re

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30

Flowers, TJ. "Metabolic and osmregulatory responses of snapper (Pagrus auratas), Mulloway (Argyrosomus japonicus) and yellowtail kingfish (Seriola lalandi) in saline groundwater." Thesis, 2010. https://eprints.utas.edu.au/10404/3/Whole_thesis.pdf.

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Australia has an abundance of saline groundwater due to land clearing and irrigation within the Murray-Darling river system. Generally saline groundwater contains similar ions to coastal seawater with concentrations varying due to the source of the water. In this study Australian snapper (Pagrus auratus), mulloway (Argyrosomus japonicus) and yellowtail kingfish (Seriola lalandi) were chosen to examine their suitability for culture in saline groundwater. The growth and metabolic response of the aforementioned species were investigated to determine their suitability for culture in saline groun

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