Copeland, Lenora Nicole

This study isolated a small number of large, in situ and reworked foraminifera from diamicts deposited in two grounding zone wedges on the middle continental shelf in Eastern Basin, Ross Sea, Antarctica. All samples were of sufficient weight to yield Holocene dates if the samples were indeed of Holocene age. Of the twelve small samples sent for radiocarbon analysis, the two heaviest were for reworked foraminifera which yielded dates of >22,200 14C BP and >22,500 14C BP. None of the other ten sam...

Kerrin, Sean Francis

The changing extents of the West Antarctic Ice Sheet (WAIS) and the manifestation of meltwater discharge on the outer shelf during the Miocene were deduced using seismic stratigraphy and seismic facies interpretations. Deep Sea Drilling Project (DSDP) Leg 28 drill sites were used for chronologic constraints of the outer continental shelf (OCS) seismic stratigraphy to establish correlations to coeval strata at the inner shelf SMS-ANDRIL drill site. The evidence indicates that grounded ice sheets ...

Patterson, Luke Jeremiah

The Moresby and Pandora Troughs of the northern Coral Sea are components of the deep-sea depositional system that is the ultimate sink for the Source to Sink Papua New Guinea (PNG) Focus Area. Cores collected from the R/V Melville during March-April 2004 reveal marine volcaniclastic and terrigenous turbidites deposited in these troughs during the Quaternary. Constraining the spatial, temporal, and provenance characteristics for these terrigenous sands through mineralogical, chemical, and textura...

Vézina, Jennifer Lynn

No description available.

Cann, John, 1937-

Includes bibliographical references. / [320] leaves, [29] leaves of plates : ill. (some col., folded), maps ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Geology and Geophysics, 1993

Clemens, Karen E.

Heavy mineral compositions of sands from Oregon beaches, rivers and sea cliffs have been determined in order to examine the causes of marked along-coast variations in the beach-sand mineralogy. The study area extends southward from the Columbia River to the Coquille River in southern Oregon. The heavy-mineral compositions were determined by standard microscopic identification with additional verification by X-ray diffraction analyses. Initially the beach-sand samples were collected as single gra...

Carrière, Olivier

In marine environments, acoustic wave propagation is determined by sound-speed variations in the water column (related to salinity, temperature and pressure) , and seafloor properties in shallow environments. The refraction index variations and the boundary conditions guide the wave propagation so that an important amount of acoustic energy can propagate over long distances. Measurements of acoustic transmissions coupled with propagation models can be inverted to infer the water column propertie...

Albin, Arthur Grayson

The lack of availability of a single, complete paper on the analysis of a digital data acquisition system for in situ oceanographic measurements brought about the present work. In order to compile an accurate technical paper on such a complex system, it was necessary to design, construct, and calibrate a system for the in situ measurement of various physical and chemical properties of sea water. A unique digital encoding circuit was developed which utilizes the basic principles of null balance, ...

Boudrias, Michel Andre

Graduation date: 1986

Himes Boor, Gina Kristine

Despite two decades of satellite telemetry studies conducted on Steller sea lions, scientists still lack basic spatially-explicit knowledge about Steller sea lion habitat use. The Platforms of Opportunity data collected by the National Marine Fisheries Service contain Steller sea lion sighting records throughout the species' entire range and have the potential to fill the critical gap in knowledge about what areas Steller sea lions are using. The Platforms of Opportunity data have not previously...

Söderberg, Emelie

No description available.

Mee, Jonathan K. L.

Field collections in the Southern Gulf of Oman and the Northwestern Arabian Sea, and examination of museum collections from this study area, yielded 7 genera and 33 species of apogonid fishes. Twenty one species of Apogon, one Archamia, four Cheilodipterus, three Fowleria, one Rhabdamia, two Siphamia, and one Holapogon are reviewed and illustrated. The Dhofar Cardinalfish, Apogon dhofar, nov. sp. is described from 21 specimens collected in the Arabian Sea, off southern Oman. It differs from the ...

Larsson, Josefine

<p>The distribution and abundance of many coral reef organisms are affected by their predator’s distribution and abundance. Loss of predators may cause a shift in species compositions that will cascade down to other ecological processes on the reef. One example of a shift like this is the growing sea urchin populations inhabiting the coral reefs of East Africa. Areas with high fishing pressure often have large populations of sea urchins. The large populations of sea urchins have a negative impac...

Hansson, Tomas

<p>This thesis reports the results of biomarker measurements in three environmental monitoring projects. In the first project, which was part of the Swedish national environmental monitoring, biomarkers were measured annually in female perch (<i>Perca fluviatilis</i>) in two background areas in the Baltic Sea during 1988–2000, resulting in a unique 13-year series of measurements. The most important results were a strong decreasing temporal trend in the gonadosomatic index (GSI) and a strong incr...

Forsberg, Victoria

The subject matter of this Bachelor´s thesis is the Eastern Baltic Sea cod. A literature review has been done regarding how environmental factors such as salinity, oxygen supply and temperature but also the size of the cod populations affects the migration patterns and the habitat choice of the cod. The result of the review shows that, when the eastern Baltic cod population is small, its area of distribution is restricted to the southern parts of the Baltic Sea. Moreover, high salinity leads to ...

Rieseberg, Ashley

Domoic acid (DA) is a neurotoxin produced by the harmful algae Pseudo-nitzschia that has been directly linked to mass stranding events of the California Sea Lion (CSL). The purpose of this paper is to review the anthropogenic influence on the production of this neurotoxin and examine how human activities are impacting this marine mammal species. A comprehensive and interdisciplinary literature review was conducted to evaluate the future sustainability of the CSL population. It was found that whi...

Finn, Fia

No description available.

Kirst, Logan Gregory

A sequence of three seismically-resolvable, back-stepping grounding zone wedges (GZWs) within the Glomar-Challenger Basin paleo-ice-stream trough is conventionally interpreted to have been deposited by the West Antarctic Ice Sheet (WAIS) since the end of the Last Glacial Maximum (LGM). For this to be true, there would have to have been voluminous GZW deposition via fast moving ice streams with high sediment flux during the short timeframe since the WAIS retreat began at 11 Ka 14C BP and when the...

Meck, Stephen R.

Range, areas of concentrated activity, and dispersal characteristics for juvenile Steller sea lions Eumetopias jubatus in the endangered western population (west of 144° W in the Gulf of Alaska) are poorly understood. This study quantified space use by analyzing post-release telemetric tracking data from satellite transmitters externally attached to n = 65 juvenile (12-25 months; 72.5 to 197.6 kg) Steller sea lions (SSLs) captured in Prince William Sound (60°38'N -147°8'W) or Resurrection Bay (6...

Wong, Ching-lun, Helen.

published_or_final_version / abstract / English Studies / Master / Master of Arts

Tseng, Hsing-Chia

A South China Sea warm core eddy with sea surface temperatures (SST) higher than 29.5 C, recently reported by Chu and Chang (1995), appears in the central South China Sea (west of Luzon Island) in boreal spring, and strengthens until the onset of the summer monsoon (mid-May), then weakens and disappears at the end of May. Although its size and intensity varies, the warm core eddy releases large moisture and heat fluxes into the atmosphere and in turn affects the monsoon circulation. The transien...

Weissmann, Mikael

The overall purpose of this dissertation is to provide an empirical study of the post-Cold War EastAsian security setting, with the aim of understanding why there is an East Asian peace. The EastAsian peace exists in a region with a history of militarised conflicts, home to many of the world'slongest ongoing militarised problems and a number of unresolved critical flashpoints. Thus, thepost-Cold War East Asian inter-state peace is a paradox. Despite being a region predicted to be ripefor conflic...

Webb, Janis Louise

The sea louse (Lepeophtheirus salmonis), whose larvae are planktonic and disseminated in the water column, is an economically important parasite of Atlantic salmon (Salmo Salar). The effect of temperature (5, 10, 15°C), diet (larvae alone, larvae plus phytoplankton), and bivalve size (small, medium, large) on the amount of L. salmonis larvae ingested by various species of filter-feeding bivalves (Pacific oysters, Pacific scallops, blue/Gallo’s mussel hybrids, basket cockles) was examined in...

Peet, Corey Ryan

The issue of sea lice (Lepeoptheirus salmonis and Caligus clemensii) transfer from salmon farms to wild salmon is a controversial topic in British Columbia (BC). A series of sea lice epizootics (four in five years) on juvenile chum (Oncorhynchus keta) and pink (0. gorbuscha) salmon in the Broughton Archipelago (BA), an area with the highest density of salmon farms on the west coast, have caused significant concern among conservationists, local First Nations, and the general public over the possi...

Comeaux, Rebecca Suzanne

Populations of black mangroves (Avicennia sp.) are hypothesized to expand their latitudinal range with global climate change in the 21st century, induced by a reduction in the frequency and severity of coastal freezes, which are known to limit mangrove colony extent and individual tree size, as well as an overall warmer climate. The Gulf of Mexico is located at the northward limit of black mangrove habitat and is therefore a prime candidate for population expansion with global warming. This expa...

Lee, Hyong Sun

Approved for public release, distribution is unlimited / A method for predicting swell from tropical cyclones using a spectral wave model (TYWAVES) was tested. The model was applied to predicting swell propagating from three typhoons in the Western North Pacific through gaps in the Ryukyu Islands into a region of the East China Sea. The model involves a source region concept which considers only the swell emanating from regions of peak energy in moving typhoons. For three representative typho...

Cherian, Ribu, Venkataraman, Chandra, Ramachandran, S., Quaas, Johannes, Kedia, Sumita

In this paper we analyse aerosol loading and its direct radiative effects over the Bay of Bengal (BoB) and Arabian Sea (AS) regions for the Integrated Campaign on Aerosols, gases and Radiation Budget (ICARB) undertaken during 2006, using satellite data from the MODerate Resolution Imaging Spectroradiometer (MODIS) on board the Terra and Aqua satellites, the Aerosol Index from the Ozone Monitoring Instrument (OMI) on board the Aura satellite, and the European-Community Hamburg (ECHAM5.5) general ...

Gutowski, Gail Ruth

Changes to ice sheet surface mass balance (SMB) are going to play a significant role in future sea level rise (SLR), particularly for the Greenland ice sheet. The Coupled Model Intercomparison Project Phase 5 (CMIP5) found that Greenland ice sheet (GIS) response to changes in SMB is expected to contribute 9 ± 4 cm to sea level by 2100 (Fettweis et al 2013), though other estimates suggest the possibility of an even larger response. Modern ice sheet geometry and surface velocities are common met...

Malhame, Pierre.

The uppermost Cambrian-Lower Ordovician Kamouraska Formation in the external Humber Zone of the Quebec Appalachians consists of dominant thick massive to graded quartz arenite beds, subordinate pebble conglomerate and intercalated thin shale and siltstone beds. It was deposited by hyperconcentrated to concentrated density flows in a meandering submarine canyon on the continental slope bordering the Iapetus Ocean. Turbidity currents deposited beds with turbidite structure divisions. The sandstone...

Charlton, Lorin Ann

The 70 kDa ribosomal protein S6 kinase (p70s6k) has been implicated in the control of cell proliferation and the onset of protein synthesis following mitogenic and hormonal stimulation. Due to the importance of this role in signal transduction we undertook to purify and characterize the echinoderm isoform of p70s6k, and to evaluate the role of p70s6k in a mammalian system. A rapid protocol was developed for the enrichment of a catalytically active isoform (p52S6K) of the S6 kinase from oocy...

Ah-Wong, Wayne, w.ah-wong@cqu.edu.au

The Thesis explores the life situations of the three Mackay-based groups: Aboriginal, Torres Strait and South Sea Islander through oral history research and the lived experience of an Elder from each of these groups. Using a combination of oral and written approaches, the project seeks to document ongoing interactions between the three groups from the 1930s and assess their implications for culture, identity and mobility.

Kausch, Matteo Francesco

<p> Selenium (Se) is a trace element of great ecological importance whose environmental distribution is highly impacted by anthropogenic activity. In the 1980s, selenium was recognized as a major aquatic contaminant following widespread deformities and mortality among waterfowl hatchlings near the agricultural drainage evaporation ponds of the Kesterson Reservoir (CA, USA). Today, 400,000 km² in the Western United States are threatened by agricultural selenium contamination, as are pa...

Šečkus, Jonas

The main subject of the present research is the geological development of the south-eastern Baltic Sea in Holocene (11000 – 0 calendar years before the present) and prediction of its development in the future (0-1000 calendar years after the present). The present is calendar years 2000AD. The working area is estimated between longitude 18ºE - 21º30’E and latitude between 54ºN - 56º30’N including the onshore and offshore of Lithuania. The quantitative and qualitative geological information and th...

Daunaravičienė, Asta

The evaluation of the passive admixture transfer in the marine environment is very significant from the point of view of environmental protection. A particular attention is devoted to the Baltic Sea ecological state, which is strongly influenced by the peculiarities of the sea bottom, weak connection with the World Ocean, climatic and hydrometeorological conditions. During the recent decades, the tendency of increment of the amount of anthropogenic pollutants is observed. The development of nucl...

Shumilovskikh, Lyudmila

No description available.

Miller, Ashley E. M.

Echinoids (sea urchins and sand dollars) undergo thyroid hormone (TH) regulated larval development and several species can endogenously synthesize these hormones. Although iodine is the essential component for TH synthesis, nothing is known about iodine uptake mechanisms in echinoids. This thesis primarily aimed to characterize integumental iodine uptake in larvae (echinoplutei) of the purple sea urchin Strongylocentrotus purpuratus. The two mechanisms considered were: iodine uptake via sodium d...

Fraticelli, Carmen Maria

A 2D high-resolution seismic grid was combined with cores to develop a stratigraphic model of the East Texas shelf and slope, which showed that fluvial deltaic systems do not significantly impact upper slope stratigraphic sequences until very late during a eustatic fall. Rather, prograding delta lobes on the shelf correlate to a condensed section on the slope that continued until the deposition of a shelf-edge delta during OI Stage 3. Soon after, the Brazos system shifted away from the study are...

Thomas, Mark Ambrose

Over 1,000 km of high resolution seismic profiles and nearly 200 piston cores, vibracores, and geotechnical boring descriptions were interpreted to document the evolution of the Trinity/Sabine incised valley system. Long-term sea level fluctuations (20 ky duration and 50 m amplitude) produced coeval coastal plain and fluvial terrace sequences, as sea level fell from the $\partial\sp{18}$O stage 5e highstand $\approx$120 kyBP to the stage 2 lowstand $\approx$20 kyBP. The geometry of the offlappin...

Welton, Megan Lynn

This thesis undertakes a complete reinvestigation of the archaeology of a large Early Bronze Age cemetery at İkiztepe in northern Turkey, by utilizing oxygen and strontium isotope analysis of human remains in combination with spatial and biodistance analysis and various dating techniques to identify potential immigrants to the site and to examine larger issues of residential mobility and social organization. The occupation of the Northern Anatolian site of İkiztepe is traditionally assigned to t...

jporsini@bigpond.net.au, Jean-Paul Orsini

Over the last 15 years, pinniped tourism has experienced a rapid growth in the Southern Hemisphere, and particularly in Australia and New Zealand where at least four sites attract more than 100,000 visitors per year. Tourism focused on the Australian sea lion (Neophoca cinerea), a protected species endemic to Australia, occurs in at least nine sites in South Australia and Western Australia. Australian sea lions haul out on several offshore islands in the Perth region. Carnac Island Nature Reser...

Mark, Joseph F.

No description available.

Snow, Richard L.

No description available.

Hanesiak, John Michael

Snow covered sea ice plays a crucial role in the earth's climate. This includes polar biology, local, regional and world weather and ocean circulations as well as indigenous people's way of life. Recent research has indicated significant climate change in the polar regions, especially the Canadian arctic. Polar climate processes are also among the most poorly misrepresented within global circulation models (GCMs). The goal of this thesis is to improve our understanding and capability to simulat...

Young, Beth Lyn

Despite its essential role in bioenergetic modeling, reliable measures of energy expenditure (i.e., oxygen consumption) associated with the different activities of wild animals have remained elusive. Oxygen consumption rate (VO₂) associated with activity can be estimated as a function of heart rate (fh), and the empirical relationship between the two has been determined for several aquatic vertebrates while fasting and resting. However, the simplified fh:VO₂ relationships established from such s...

Mooney, Robert C.

The shallow subtidal regions near Hot Springs Cove, Vancouver Island, British Columbia are characterised by large rocky areas dominated by the red sea urchin, Strongylocentrotus franciscanus. S. franciscanus were removed at three sites with four levels of urchin removal per site. Manipulations of urchin density were maintained throughout the experiment and monitored seasonally for two seasons pre-treatment and seven seasons post-treatment. The manipulations resulted in increased gonad indices of...

Azana, Cynthia Dy Prieto

Steller sea lions (Eumetopias jubatus) in the Gulf of Alaska declined since the late 1970s. Their population decline might be related to a shift in their diet from fatty, high-calorie fishes such as herring (Clupea pallasi) to low energy density fish such as walleye pollock (Theragara chalcogrammd). I compared the nutritional value of herring with pollock and explored seasonal changes in the nutrient content of pollock. I also compared the nutritional status of three captive Steller sea lio...

De Sève, Michèle

Sea ice characteristics were studied in relation to nutrient dynamics, biomass and community structure and composition of ice biota from the Gulf of St. Lawrence at landfast and drifting ice stations in the Magdalen Islands area. The instability of the ice substrate was demonstrated with respect to short duration of cover (8 weeks), ice melt and rafting processes. / The study of nutrient dynamics in ice and in seawater suggests silicates and nitrogen (NO$ sb2$+NO$ sb3$+NH$ sb4$) limitation at la...

Tarasoff, Frederick John.

No description available.

Sears, S. Kelly (Stephen Kelly)

Owing to the conflicting results obtained from the application of different analytical and sample preparation techniques, and to the complex nature of interstratified 2:1 clay minerals, the compositional and structural changes that occur with increasing diagenetic grade in illite-smectite (IS) mixed layers had not been adequately deciphered previously. Some of the uncertainties result from different modes of sample preparation, namely ion-beam milled original rock samples and dispersed separates...

Manolova, Tzveta

The present work examines trans-regional networks of interaction in the Eastern Mediterranean during the Early Iron Age (c.1200 - 700 B.C.), concentrating on the Levantine coast and the islands of Cyprus and Euboea. Moving away from the traditional emphasis on pottery and imported goods, the study proposes an alternative approach for measuring connectivity that incorporates Social Network Theory. The context of interaction is established by taking into account the potential, means, and motivatio...