The influence of weather and solar elevation on perceived colour of Blue Lake, Mount Gambier, South Australia

Previous studies of the remarkable seasonal colour changes of Blue Lake, Mount Gambier, South Australia have speculated on the roles of weather and solar elevation in this phenomenon. In this study the influence of weather and solar elevation on apparent colour is examined. Solar elevation and some weather variables were found to have a statistically significant influence, particularly when Blue Lake is undergoing transition from its blue to grey stage. However, the proportion of the overall variation in colour explained by solar elevation and weather was only 16%, so it is concluded that in-lake properties are probably the main determinants of colour.

Asynchronous patterns of reproduction for the sympatric scallops Chlamys bifrons and Chlamys asperrima (Bivalvia : Pectinidae) in South Australia

Patterns of spawning activity were assessed by monitoring gonad states over 2.5 years for Chlamys asperrima and Chlamys bifrons at two sites in Gulf St Vincent, South Australia. Chlamys asperrima appeared to have a minor spawning in June, followed by a major spawning starting in late August. In contrast, the gonads of C. bifrons were regressed only during winter and it appeared that C. bifrons spawned for a long period, from late spring (September) until early autumn (March). At one site where sampling was frequent, there was evidence of three series of C. bifrons spawning events during the summer of 1994/95 and at least two series of events during 1995/96. Build-up and decrease in gonad weight was quick, but there was strong evidence of serial spawning for both species. Subsequently, we once observed C. asperrima spawning in situ at Edithburgh Jetty, at a time when gonad weights had been decreasing in previous years, but also long after the time when peak gonad weights had usually occurred. Only patches within the population were seen spawning, with scallops not spawning observed less than 100 m away from those that were. Indirect sampling of gonad condition also suggested that spawning in C. bifrons at Largs Bay was not always synchronous among patches of scallops within a population, nor always between sexes within patches.

Accounting for local government boundary changes in South Australia : valuing assets and liabilities or valuing revenue streams

This paper examines the methodologies adopted in the transfer of assets, liabilities, revenues and expenses resulting from boundary changes associated with municipal amalgamations in South Australia during the late 1990s. It investigates the methods employed for apportioning these financial elements, valuations used and financial settlements required. Significant transfers occurred in only three cases. In two cases, councils used simple, pragmatic methods to apportion assets and liabilities, similar to those used previously in Victoria. In the third case a transfer price was calculated based on the net present value of revenues. This method is quite different from previous methods examined and is appropriate where one council will make significant future gains at another council's loss because of net revenue transfers.

The effect of a smoke-free law on restaurant business in South Australia

Background: Despite evidence to the contrary from overseas research, the introduction of smoke-free legislation in South Australia (SA), which required all restaurants to go smoke-free in January 1999, sparked concerns among the hospitality industry about loss of restaurant business. This study aimed to determine whether the law had a detrimental impact on restaurant business in SA.

Methods: Using time series analysis, we compared the ratio of monthly restaurant turnover from restaurants and cafes in SA to (a) total retail turnover in SA (minus restaurants) for the years 1991 to 2001 and (b) Australian restaurant turnover (minus SA, Western Australia and the Australian Capital Territory) for the years 1991–2000.

Results: There was no decline in the ratio of (a) SA restaurant turnover to SA retail turnover or (b) SA restaurant turnover to Australian restaurant turnover.

Conclusion: The introduction of a smoke-free law applying to restaurants in SA did not adversely affect restaurant business in SA.

Music in state-supported schooling in South Australia to 1920

This thesis is a study of the establishment of the music curriculum in state-supported schools in South Australia from the beginnings of such schooling until 1920. There will be a discussion of issues to be explored and the method by which this investigation will proceed. A literature survey of relevant research will be included, after which there will be a sketch of the development of state-supported schooling in South Australia. Several broad themes have been chosen as the means of organising the historical material: the rationales offered for the inclusion of music in schooling, the methodologies, syllabi and materials of such music instruction, the provisions for teacher training in music, both preservice and as professional development for established teachers, and the place and function of music in schooling. Each of these themes will form the framework for a chronological narrative. Comparisons will be made with three neighbouring colonies/States concerning each of these themes and conclusions will be drawn. Finally, overall conclusions will be made concerning the initial contentions raised in this chapter in the light of the data presented. Although this study is principally concerned with the establishment of music in state-supported schooling, there will be a brief consideration of the colony of South Australia from its proclamation in 1836. The music pedagogical context that prevailed at that time will be discussed and this will, of necessity, include developments that occurred before 1836. The period under consideration will close in 1920, by which time the music curriculum for South Australia was established, and the second of the influential figures in music education was at his zenith. At this time there was a new school curriculum in place which remained essentially unchanged for several decades. As well as the broad themes identified, this thesis will investigate several contentions as it attempts to chronicle and interpret the establishment and development of music in state-supported schooling in South Australia up to 1920. The first contention of this thesis is that music in state-supported schooling, once established, did not change significantly from its inception throughout the period under consideration. In seeking a discussion of the existence and importance of the notion of an absence of change or stasis, the theory of punctuated equilibria, which identifies stasis as the norm in the evolutionary growth of species, will be employed as an insightful analogy. It should be recognised that stasis exists, should be expected and may well be the prevailing norm. The second contention of this thesis is that advocates were and continue to be crucial to the establishment and continued existence of music in state-supported schooling. For change to occur there must be pressure through such agencies as motivated individuals holding positions of authority, and thus able to influence the educational system and its provisions. The pedagogical method introduced into an educational system is often that espoused by the acknowledged advocate. During the period under consideration there were two significant advocates for music in state-supported schools. The third contention of this thesis is that music was used in South Australia, as in the other colonies/States, as an agent of social reform, through the selection of repertoire and the way in which music was employed in state-supported schooling. Music was considered inherently uplifting. During the nineteenth and early twentieth centuries, the music selected for school singing carried texts with messages deemed significant by those who controlled the education system. The repertoire was not that of the receiving class but came from a middle class tradition of fully notated art music in which correct performance and notational reading were emphasised. A sweet, pure vocal tone was desired, as strident, harsh, speaking tones were perceived as a symptom of incipient larrikinism which was not desired in schooling. Music was seen as a contributor to good order and discipline in schooling.

Scales of policy intervention : problematising high poverty contexts in South Australia.

Education policy intervention for schools in high poverty neighbourhoods has focused on the capacity of local schools to make a difference and on the kinds of co-ordinated human services provision that might support individual families with “high needs”. In this paper I suggest that a more detailed analysis of “the problem” represented in such schools might yield a richer and more integrated policy approach. I use the notion of “scale”, arbitrary and imperfect approximations of spheres of activity, and apply it to a specific context in Adelaide, South Australia, to demonstrate the connections between the local school and factors which impinge on its capacities to make a positive difference. I suggest that the implication of the analysis is a more holistic approach to policy.

Aborigines and the criminal law in South Australia : the first twenty five years

After considering relevant events and cases the conclusion is reached that South Australian Aborigines were not in any practical sense equal before the law at any time during the period 1836-1862, despite considerable efforts by individual government and court officials.

Nature's line : George Goyder over South Australia

A biographical work presenting 19th century South Australian surveyor general and founder of Darwin, George Goyder, as a significant figure in colonial environmental history. Focuses on tracing the growth of experience and insight which enabled him to map, as Goyder's line, his insight into the importance of rainfall variability.