Nutrients in Pirron Yallock Creek, southwestern Victoria : paleolimnological and management considerations

The concentrations of various forms of nitrogen and phosphorus in the main stream and selected tributaries of Pirron Yallock Creek, southwestern Victoria were examined over a two-year period. Exceedingly high levels of both nutrients were found within a particular tributary, while generally high nutrient levels were observed throughout the catchment. The speciation results indicated that dairy effluent was the primary source of nutrients to Pirron Yallock Creek. A palaeolimnological study was undertaken to determine the impact of European settlement upon waterway nutrient concentrations within the region. The palaeolimnological study focused primarily on the diatom flora preserved within the sediments of nearby Lakes Corangamite and Bullen Merri. Lack of preservation of diatoms within the sediments of Lake Corangamite resulted in no water quality inferences for this lake. The preserved diatoms within Lake Bullen Merri suggested an increase in trophic status of this lake during the last 500 years. While a change in the diatom flora of Lake Bullen Merri was evident, it was not possible to differentiate the impact of European settlement upon nutrient status of this waterway from long-term trophic status change. In light of the particularly high nutrient concentrations observed in Pirron Yallock Creek, improved nutrient management strategies are proposed for the catchment. These strategies, which consider current nutrient management activities, are predominantly focussed on the dairy industry, which occupies the majority of the catchment.

An integrated observation network for the Gippsland Lakes, Victoria, Australia : balancing the needs of science and management

The Gippsland Lakes region in eastern Victoria is a partially flushed coastal lake system within a diverse catchment of rural and urban communities. Pressure from lakeside developments, re-occurring blue-green algal blooms, declining fisheries, sedimentation and infilling of the ocean entrance, has borne several decades of focussed studies and routine monitoring programs, along with a variety of engineering and management solutions. A recent review recommended that these disparate studies should be enhanced to formulate a coordinated monitoring network that could improve both spatial and temporal coverage, develop a capacity to trigger responsive investigations and was able to serve the needs of system management. Through a series of partnerships an integrated network was developed that comprises event and baseline monitoring of catchment loads, local meteorological forcing and an array of water quality sampling sites within the lakes system. A majority of these sites are incorporated with real-time telemetry that provides up to the minute information to stakeholders via a web-based information management system and vital operational status to technical system management.

Knowledge sharing in professional accountancy firms : the effects of task complexity and management control system

Numerous empirical studies on knowledge management have focused on effectiveness of enablers such as organizational structure (Bennett and Gabriel, 1999; Gold et al., 2001), technology (Gold et al., 2001; O’Dell and Grayson, 1998), culture (DeLong and Fahey, 2000; Gupta and Govindarajan, 2000), managerial system (Nonaka, 1994; Sveiby, 1997) and strategy (Bierly and Chakrabarti, 1996; Holsapple and Joshi, 2001) on knowledge sharing. These enablers are organizational infrastructure or mechanism for facilitating the sharing of knowledge in a firm. In knowledge-intensive firms, task complexity and management control systems (MCS) can potentially affect the mode and effectiveness of knowledge sharing. However, these two factors have not been distinctly and explicitly investigated and discussed in literature relevant to the domain of knowledge sharing and management. This study proposes to examine how task complexity and the design of MCS could be the key determinants of the mode and effectiveness of knowledge sharing in professional accounting firms or practices.

Development of a universal approach to estuarine planning and management, with special reference to Australia

The study develops a universal management framework for estuaries. Based on the identified problems, policy makers' inputs and characteristics of effective management models, the study proposes a universal planning and management framework, which consists of four elements. On the basis of the elements the study outlines a detailed planning and management framework for estuaries.

The fishery, biology and management of three inland water-bodies, Vietnam

This study was carried out from 1997 to 2004 and its findings have significantly enhanced our understanding on fishery, biology, and management of three inland water bodies in Vietnam. The study also provides insights into development of management guidelines and recommendations for future fisheries development in the research area.

Biology and management of Murray cod reproduction within controlled environments

The emerging Murray cod aquaculture industry is currently restricted by a lack of consistent and year-round production of fingerlings. Biological information and reproductive technologies developed during this research have facilitated the development of indoor, environmentally-controlled breeding practices for this species, thereby enabling Murray cod juveniles to be produced on-demand.

Thai river sprat : biology and management in Sirinthorn Reservoir, Thailand

The Thai river sprat (Clupeichthys aesarnensis) is a short-lived clupeid, which supports an artisanal fishery in a number of reservoirs in the Lower Mekong Basin. This study presents the C. aesarnensis biology, population dynamics and its fishery in Sirinthorn Reservoir, NE Thailand. C. aesarnensis fishery management schemes are also proposed.

Psychological interventions for the prevention and management of lifestyle-related chronic disease

The Australian Government's current health reform agenda provides a timely opportunity to highlight the contribution of health psychology interventions in the prevention and management of chronic diseases associated with lifestyle risk factors. The World Health Organisation (2009) has identified the main risk factors responsible for deaths internationally as high blood pressure (responsible for 13% of deaths), tobacco use (9%), high blood sugar (6%), physical inactivity (6%), overweight and obesity (5%), high cholesterol (5%), unsafe sex (4%) and alcohol use (4%). A number of these factors also increase the risk of major chronic diseases - cardiovascular disease, diabetes and cancers. There is now a substantial evidence base for the effectiveness of health improvement interventions based on psychological theory, research and practice and hence they deserve a high level of recognition within systems for funding health. This article presents a summary of a systematic review of the evidence for the effectiveness of health psychology interventions in the prevention and treatment of chronic diseases associated with lifestyle risk factors.

Transition to a low carbon footprint : a conceptual model of impacts and management for Australian businesses

Australian businesses will face profound and wide-ranging structural impacts during their transition to a low carbon footprint economy. This paper synthesizes the impacts for the firm during the transition and identifies the crucial impact variables. In doing so, it explores the link between the opportunities and benefits, costs, risks and structural changes and evaluates the challenges in managing the multiple impacts. The paper provides a conceptual model that will assist decision-makers deal with risk management or bottom-line protection issues as well as exploiting the business opportunity the new regulatory environment will produce. The model argues for a holistic corporate governance mechanism, with responsibility and accountability of climate change risk management placed with the board of directors and senior management. The literature review is presented first, followed by the discussion and the model. Future empirical research direction is also presented with the development of a series of propositions for testing.

Epidemiology and management of Penaeus monodon farms in Andhra Pradesh, India

Disease outbreaks on shrimp farms studied in Andhra Pradesh were caused mainly by white spot syndrome virus (WSSV) significantly reducing yield. Shrimp seed was the major source of WSSV but several risk factors were also involved. Implementation of better management practices (BMPs) at farm and farm cluster level through formation of Self-Help Groups could significantly improve crop outcomes in farms.