A mixing budget for the Strait of Georgia was prepared summarizing mixing processes and effects upon the physical oceanography of the strait. A mixing budget was defined as an itemized estimate of mixing mechanisms and the total state of mixing in the strait. Mixing effects in the Strait of Georgia were estimated from hydrographic data and from monthly summaries of meteorological data for four months: February, May, August and November of 1968. Mixing was estimated qualitatively by depth-averaging temperature, salinity, density and oxygen concentrations for four representative layers, each 25 metres thick and by producing contour plots for each variable for the layers (two upper layers, an intermediate layer and a deep layer). Quantitative estimates of mixing were made by computing the potential energy density and the energy density needed for total mixing for the representative layers plus the potential energy density of total stratification (a fresh water layer over a layer with oceanic salinity). Changes in potential energy were due to mixing plus advection. Estimates of the energy available for mixing were made for the different mixing mechanisms acting upon the strait: wind mixing, buoyancy flux (convection) mixing, tidal mixing, mixing by internal waves and entrainment mixing. The Strait of Georgia has three different domains which are influenced by different mixing mechanisms: the southern passages, the upper layers of the northern strait and the deep waters. The southern passages (including the San Juan Archipelago and Haro and Rosario Straits) are the site of intensive tidal mixing which keeps the entire water column well mixed} convection and wind mixing are also important during the winter. The upper layers of the northern strait (north of Boundary Pas sage) are well mixed by the wind in the winter and by the wind and convection in the autumn. The uppermost brackish layer is highly stratified in the spring and summer from the effects of surface heating and fresh water runoff; intermediate layers are mixed by entrainment upwelling. The deep waters of the strait are influenced chiefly by advection processes: estuarine flow and seasonal intrusions of new water masses. In the winter, cold low-salinity water intrudes and displaces the warm water left from the previous summer while in the summer, warm saline water replaces the cold winter water. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate

No description available.

The aim of my study is to comprehend why there is a significant gap in the economic development of Torres Strait. It questions why it is that Torres Strait Islanders as a whole remain largely economically unproductive in their present situation in contrast to the political beliefs of Islanders and their struggles for self-determination. It questions why Island leaders continue to accept policies of external control even though the guidelines for self development maintain the situation, rather than transforming it. Thus this thesis examines contemporary and traditional history of the Torres Strait in order to analyse and evaluate the development of the political structures of the Islands and how colonialism has influenced the politics of Torres Strait Islanders. I shift through the recorded layers of myths and legends for my interpretation and analyse the ethnographic accounts about Torres Strait from past archival reports, academic literature and the oral accounts from interviews. From the local media, I have examined the recent views of both the contented and discontented Islanders and other people reported in the local Torres News. From these records, I bring into perspective the historical processes of a capitalist economic system which has so deeply penetrated Islander culture. / Commencing in the 1860s, at the onset of the Torres Strait beche-de-mer and pearl shell industry, the system has so failed Torres Strait Islanders' social development that it moved Islander leaders in the 1980s to push for cessation from Australia and, in the mid 1900s to seek "autonomy and self government" to remain within the Australian political system. In this thesis, I use this evidence to bring into perspective the concept of development with awareness to the colonial history of Torres Strait in comparison with oral history interpreted as the culture of my people. The theme my thesis implicates the contestation between Torres Strait Islanders and governments who impose administrative policies through the Islander system of political representation (regarding Islander culture and resources).

During 1996 and 1997 an Australian parliamentary committee conducted an inquiry into greater autonomy for Torres Strait Islanders, but by 2000 the future of the issue seemed unclear. This thesis explores what the notion of autonomy has meant for Torres Strait and for Torres Strait Islanders in the past, and what it might mean in the future. The thesis uses material from the period before European contact to just after the end of the parliamentary inquiry. ¶ Several analytical tools were utilised to explore the concept of autonomy. Major among these to propose and then analyse the relationship between autonomy’s economic and political components. The thesis also introduces the paired concepts of negative and positive autonomy to provide a counterpoint to ideas of welfare colonialism. Cross cutting these economic and political elements is a consideration of both regional and corporate forms of autonomy. The thesis argues that it is necessary to consider the factors which people can use to legitimise a case for autonomy and these are identified and discussed. ¶ Although previous research and historical material are utilised, unique parts of the thesis include an analysis of: the formal submissions and hearings associated with the parliamentary inquiry; the Torres Strait’s location between Australia and Papua New Guinea; and the Strait’s small-island make-up. In this latter regard, comparisons are made with models and examples of autonomy found in small island states and territories in the Pacific. ¶ The findings include that we must consider two groups of Torres Strait Islanders, those in Torres Strait and those on mainland Australia. Whereas those in the Strait have been able to legitimise a case for a form of autonomy those on the mainland have not. Islanders in the Strait have achieved a degree of regional autonomy; those on the mainland are unable to make a case to be part of this regional autonomy, or to achieve a form of corporate autonomy. The status of Islanders in the Strait is influenced by several factors including the Strait’s location on the border with Papua New Guinea, the associated Treaty with that country, and the nature and the accessibility of the in-shore fishery. A major finding however is that although Islanders have achieved a degree of regional political autonomy, which may be progressed yet further, they have been unable to embrace non-Indigenous people within this. Their present aspiration for regional political autonomy therefore is limited to one that would apply only to Indigenous-specific affairs. This stands in some conflict with their aspiration for regional economic autonomy which would include their control over the entire regional fishery which they presently share with non-Islanders. ¶ Though Islanders have achieved some degree of political autonomy, they depend on substantial government financial transfers to the region. Despite this they have also achieved some economic autonomy, particularly through being involved in the region’s fishery. Juxtaposing negative and positive autonomy with political and economic autonomy shows that a dependence on government economic transfers does not preclude gains in political autonomy. This can be contrasted with the notion of welfare colonialism.

"August, 2001" / Bibliography: leaves 173-183. / xvi, 184, 12 leaves : ill. (some col.), maps, plates (some col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / "The primary objective of the study was to gain a better understanding of the tectonostratigraphic evolutionary history of the Bass Basin. In particular, the study has focussed on mapping and analysing all the faults and fault patterns in the Bass Basin in relation to the subsidence history and its influence on sedimentation and hydrocarbon potential of the basin. The reason why the Durroon area and the Bass area behaved differently in response to extensional stresses was investigated. As a final outcome, it was thought important to clarify some of the existing disagreement about the broad tectonic and structural history of the basin and in particular to separate the influence of the Otway and Tasman Sea rifting episodes on the sedimentation history of the Bass and Durroon area. The study also aimed at investigating the occurence in the basin and nature of a recently recognised fault system, a polygonal fault system." --p. 2. / Thesis (Ph.D.)--University of Adelaide, National Centre for Petroleum Geology and Geophysics, 2002

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This study utilized, for the first time, the d18Osw as a tracer to investigate the seasonal variations of circulation in the Taiwan Strait (TS), which is the predominant sea passage with an average depth of 60 m connecting the East China Sea (ECS) and the South China Sea (SCS). The result shows that the circulation system in TS is mainly influenced by the inter-mixing among the China Coastal Water (CCW), the SCS water (SCSW), and the Kuroshio Water (KW). In spring, the KW dominates in TS, whereas the CCW is still observed in northwest TS. During the summer, SCSW replaces the KW and becomes the major water type in the TS, yet the KW is found to be restricted in the southwest part and the bottom of the TS. Due to the larger discharge from rivers (mainly the Yangtz River), the CCW has a more extensive distribution in the TS in summer than other seasons. In fall and winter, the CCW occupies the northern part of TS due to the stronger northeastern monsoon which limits the intrusion of the KW through the Luzon Strait to the northern TS. The two distinct water types inevitably form a front in the central TS. The hydrographic variations at Penghu Channel (PHC) were also explored in this study. The d18Osw indicates that the perennial intrusion of the KW into the PHC is varying throughout different seasons. This intrusion is found strongest in fall and winter. In summer, the upper layer of PHC is occupied chiefly by SCSW, while the KW remains at the bottom layer in PHC. By including an additional inflow of 0.5Sv from TS to ECS, this study further reconstructed a box model of the ECS, which was previously furnished by Lin(1999). The new estimates suggest that ~0.38*104 km3/year of the Kuroshio surface water (0-50m) and ~1.54*104 km3/year of the upwelled Kuroshio subsurface water (50-150m) are transported to the ECS, while ~3.83*104 km3/year of the ECS water are exported to the western Pacific Ocean.

Abstract ¡§The industry is the basis of financial industry and the financial industry is the industrial backing¡¨. The industry and the finance should originally complement one another, interdependence. However, bilateral trade is very fast, but the bilateral financial cooperation is relatively slow. Until the financial tsunami and second time ¡§Jiang Chen Huiliou¡¨, bilateral finance cooperation warms day by day. There are many reasons affecting cross-strait finance corporations. Based on the literature review, this study divides the factors into the areas of the economy, the risk and the cooperation mechanism; and it chooses five cues of ¡§increase finance of the Taiwanese enterprises¡¨, ¡§promoting competency of financial industry¡¨, ¡§the political risk¡¨, ¡§the cooperation of financial supervision¡¨ and ¡§the communication of people¡¨ by conducting interviews with masters of financial industry, the official staffs and professors. With the research method of Social Judgment Theory, as the foundation design questionnaire, will treated financial staffs, local citizens and government staffs in order to examine whether disparate groups have different cognitions toward the five cues. Total questionnaire are 460, recycling 402 and the effective questionnaire are 256. Interviews with experts and the survey analysis result in the following findings: 1.All experts pay high attention on ¡§the political risk¡¨ and ¡§the cooperation of financial supervision¡¨ followed by ¡§increases finance of the Taiwanese enterprises¡¨, ¡§promotes competency of financial industry¡¨ and ¡§the communication of people¡¨. 2.In the average weights, all groups pay attention ¡§the political risk¡¨ followed by ¡§promoting competency of financial industry¡¨, ¡§the cooperation of financial supervision¡¨, ¡§the communication of people¡¨ and ¡§increases finance of the Taiwanese enterprises¡¨. 3.In the judgment functions, all groups have positive attitudes toward the three cues:¡¨ promoting competency of financial industry¡¨, ¡§the cooperation of financial supervision¡¨, ¡§and increases finance of the Taiwanese enterprises¡¨. On the cue of ¡§the communication of people¡¨ have positive attitude and U-curves. Finally, all groups have negative attitude toward ¡§the political risk¡¨. 4.There are statistical findings in T-test and ANOVA: (1)After T-test, there are significant differences in ¡§the political risk¡¨ for all groups and the rest of cues are insignificant. (2)There are significant differences in ¡§increases finance of the Taiwanese enterprises¡¨, ¡§the cooperation of financial supervision¡¨ and ¡§the communication of people¡¨ among different groups of area. The rest of cues are insignificant among the groups of different area. (3)There are significant in ¡§increases finance of the Taiwanese enterprises¡¨ and ¡§promoting competency of financial industry¡¨ among the groups of different decades. The groups of different work experience have significant in ¡§the cooperation of financial supervision¡¨.

Tracing the history back to the 17th century, Taiwan had already started trade with other countries then due to excellent location and convenient marine transportation in the oceans. Such great qualifications stress Taiwan's importance in the international regime. This thesis includes 6 chapters. Besides the introduction in Chapter 1, Chapter 2 is the description of data sources and gives a picture of the then background. Chapter 3 describes the importance of China's trade market from Taiwan's point of view. This chapter covers Taiwan's trade dependence, export dependence and import dependence on China. Also exports-imports ratio of Taiwan's trade with China is also addressed. It displays the rise and fall of China's share of Taiwan's exports, imports or total trade volume. When Taiwan just opened its ports in 1860, China was Taiwan's most important export market. However, the volume of Taiwan's exports to China shrank dramatically in 1902 during Japanese colonial rule and Taiwan's main export markets switched from China to Japan. After the recovery of Taiwan, China and Taiwan maintained a close trade relationship under the Nationalist Government administration. After then, the two sides were separate for almost 40 years. When both of them opened to each other, Taiwan's exports to China have multiplied. China became Taiwan's largest export market in 2002. As for Taiwan's imports from China, it hardly fluctuated. Even in 2005, China's share of Taiwan's imports was still only around 10%. Chapter 4 and 5 address the changes in the trade commodities between China and Taiwan. They display the rise and fall of the trade items and following the description give a general picture of that after 1988. Tea and sugar covered over 90% of Taiwan's exports in late 19th century. The main export market was China. In Japanese colonial rule, sugar and rice was the most important goods. They occupied almost 70% percent of Taiwan's exports and the export destination was Japan. Other export goods such as sub-agricultural products, fishery products, textile products and industrial products were not as important as tea, sugar and rice. In Chapter 4, changes of Taiwan's economic structure were also discussed. As for the imports, agricultural products, fertilizer, industrial products, textile products and other daily living products accounted for around 40%~50% of the total imports. The import goods are more various than export goods. In the last section of Chapter 5, policy evolution of the two sides is also addressed. Chapter 6 is the conclusion of the tables and figures. Future perspectives are also given in this part.

Porphyra abbottiae Krishnamurthy (Rhodophyta) is an intertidal red alga harvested by a number of coastal First Nations in British Columbia. The Kwakwaka’wakw have a long history of harvesting P. abbottiae as food and medicine, reflected in the language, songs and stories of the Kwakwaka’wakw oral tradition. Harvesting and drying practices for this alga have undergone changes with the introduction of new technologies and a decrease in time available for seaweed harvesting. The adoption of timesaving equipment into the seaweed harvest has given harvesters the flexibility to work around constraints including work and school obligations, tides, long distances to harvesting sites, and unpredictable weather conditions. Harvesting and drying practices reflect a thorough understanding of the lifecycle, biology, and ecology of P. abbottiae. Timing of the harvest during the seasonal round optimizes the taste and texture of P. abbottiae fronds while avoiding the seaweed in its reproductive stage. Songs and taboos associated with the harvest promote safety and efficiency while harvesting the seaweed. Concerns about potential contamination of edible seaweed led to the second part of this research: testing for metal contamination. Inductively coupled plasma mass spectrometry analysis for selected metals and trace elements revealed the presence of arsenic, cadmium, lead, and mercury in Porphyra abbottiae sampled from the southern Queen Charlotte and Broughton Straits. Mercury concentrations fell below the detection limit of 0.01 ng/mL in 28 of 112 samples. Calcium was the most abundant element measured, averaging 1445 mg/kg dry seaweed. The remaining metals, in decreasing order of concentration, are: Fe>As>Zn>Mn>Cu>Cd>Pb>Cr>Co>Se>Hg. Copper-zinc (r=0.835) and copper-lead (r=0.948) concentrations are significantly correlated (p<0.05), suggesting selective uptake of these elements. PCA analysis suggests that the location of harvesting sites within specific water channels is influencing metal concentrations. Hazard quotients calculated using guidelines set by Health Canada and the World Health Organization revealed that, among the suite of elements surveyed, arsenic followed by cadmium ranked the highest in relative risk for consumers of P. abbottiae. An average 60 kg adult consumer can safely consume approximately 9.4 g dried seaweed per day and not exceed tolerable upper intake limit guidelines. In conclusion, Porphyra abbottiae can be eaten in moderation with minimal risk of chronic metal contamination. Kwakwaka’wakw consumers can also benefit from cultural reconnection with this important traditional food. / Graduate