Artigos de revistas: "Western Australia. Department of Fisheries"

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B. Smallwood, C., L. E. Beckley e N. R. Sumner. "Shore-based recreational angling in the Rottnest Island Reserve, Western Australia: Spatial and temporal distribution of catch and fishing effort". Pacific Conservation Biology 12, n.º 3 (2006): 238. http://dx.doi.org/10.1071/pc060238.

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The Rottnest Island Reserve, located off southwestern Australia, is one of the most popular recreational fishing locations in Western Australia. In the reserve, standard Western Australian recreational fishing regulations apply and there are two small "no-take" conservation sanctuary areas. A roving creel survey of shore-based recreational angling in the reserve was conducted from January to December 2003. In total, 1 053 anglers were recorded which included individuals, families, school groups and angling club members. The total annual shore-based angling effort for Rottnest island was calculated to be 23 899 angler outings and the total catch estimated at 53 994 retained fish. Fishing effort was concentrated in the settlement area on the eastern side of the island and the highest levels of catch and effort were recorded in April, May and July. During the survey, 33 fish species were identified in the catch and the small, pelagic species Australian Herring dominated with 7.27 tonnes caught during the study. Shore-based anglers also caught and released a large number of non-target species. The survey has provided spatial and temporal data that can be used as a benchmark and to support decision making by the Rottnest Island Authority with respect to biodiversity conservation and the Department of Fisheries with regard to management of shore-based recreational angling in the Rottnest Island Reserve.

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Rolfe, Joe, Lindsey Perry, Peter Long, Caitlyn Frazer, Terry Beutel, Jane Tincknell e David Phelps. "GrazingFutures: learnings from a contemporary collaborative extension program in rangeland communities of western Queensland, Australia". Rangeland Journal 43, n.º 3 (2021): 173. http://dx.doi.org/10.1071/rj20078.

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Producer reliance on drought subsidies instead of proactive planning and timely destocking in low rainfall years has prompted Queensland government investment in promoting business and drought resilience. GrazingFutures (AU$6 million budget, 2016–2022) is an extension project focussed on enhancing business management skills of extensive livestock producers in western Queensland, Australia. The region’s rangelands are in productivity decline, span 1 million km2 and are managed by graziers operating more than 2400 livestock businesses (beef, sheep and goats). The Queensland Department of Agriculture and Fisheries delivers GrazingFutures as a component of the Drought and Climate Adaptation Program, in partnership with regional natural resource management groups and other public and private organisations. Project delivery emphasised upskilling multi-agency staff and livestock producers to promote practice change within three whole of business themes: (1) grazing land management; (2) animal production; and (3) people-business. Three independent surveys (2018, 2019, 2020) indicated positive practice change was occurring in grazing businesses as a consequence of the project. Graziers instigated management changes even under major environmental challenges including extended drought (2013–2020), an extreme flood event in 2019 and the COVID-19 pandemic in 2020. This paper details the rationale, progress against the objectives, challenges and future direction of the GrazingFutures extension project.

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Real, D., C. A. Labandera e J. G. Howieson. "Performance of temperate and subtropical forage legumes when over-seeding native pastures in the basaltic region of Uruguay". Australian Journal of Experimental Agriculture 45, n.º 3 (2005): 279. http://dx.doi.org/10.1071/ea03131.

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In 1997, an integrated plant breeding program was initiated at the National Agricultural Research Institute (INIA) Uruguay, to develop forage legumes and root nodule bacteria which were able to be productive in co-existence with the native (grass-dominant) vegetation when grazed by cattle and sheep. The program was conducted in parallel with rhizobial strain selection by the Rhizobium–Biological Nitrogen Fixation Unit of the Soil Microbiology Department of the Ministry of Livestock, Agriculture and Fisheries of Uruguay and the Centre for Rhizobium Studies (CRS), Murdoch University, Western Australia. Between 1998 and 2000, 326 temperate and subtropical forage legume species originating from 38 ex-situ seed collections were evaluated in 3 plantings on: red lithosol, black lithosol and vertisol soils at Glencoe Research Station in Uruguay. Row–column field designs were used. Forage production at the end of the second year of evaluation was used as the key selection parameter for the introduced legumes because their success required persistence in the pasture either vegetatively or by natural reseeding. This study identified a set of promising legumes and strains of Rhizobium that are now available for further study and breeding in Uruguay as well as other countries with a similar climate. The methodology developed in this study may be applicable to forage selection programs in which competition between annual and perennial species is expected to influence outcomes.

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Lindley, Jade, e Liam Quinn. "Compliance in recreational fisheries: Case study of two blue swimmer crab fisheries". PLOS ONE 18, n.º 1 (6 de janeiro de 2023): e0279600. http://dx.doi.org/10.1371/journal.pone.0279600.

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Comparing two Australian regions, Western Australia (WA) and South Australia (SA), this research investigates official noncompliance datasets of recreational blue swimmer crab (Portunus armatus) fishing between 2009 and 2019. These recreational fisheries in both jurisdictions are license-free and therefore participating fisher information is limited. Analyses provide a glimpse at the (noncompliant) fisher population profiles against the application of management strategies. The data provide (1) an evidence-base to optimize regulatory strategies by balancing education and enforcement activities with recreational fisher enjoyment. The results of this research enable application within and beyond these fisheries and jurisdictions; and (2) drawing from the criminology discipline, deterrence theory offers insight to enhance compliance tools. Further, it shows the importance of a multi-disciplinary approach to assessing compliance and identifies some practical approaches to data collection that can be readily undertaken to assist with more detailed analysis and enhance compliance strategies.

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Meynecke, J. O. "Coastal habitat connectivity ? implications for declared fish habitat networks in Queensland, Australia". Pacific Conservation Biology 15, n.º 2 (2009): 96. http://dx.doi.org/10.1071/pc090096.

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Estuaries are widely recognized as key habitats supporting nearshore secondary production and catch of commercial fisheries. In Queensland, some of these coastal marine habitats are protected by the declared fish habitat programme run by the Department of Primary Industries and Fisheries. Expected environmental changes for Australian estuarine systems include reduced freshwater flow, increased sedimentation and with them, a loss of connectivity. At present, the relationship between the protected declared fish habitat and habitat connectivity remains unknown. By comparing long term coastal fish catch data with geomorphic characteristics of coastal habitats structural connectivity was previously identified as a potential driver of commercial fish catch in Queensland. An ecology landscape approach was used for this study to identify potential fish habitat hotspots along the coastline of Queensland thus allowing better defined networks of declared fish habitats. A comparison between this approach and the current declared fish habitats demonstrated potential deficits and provided important insights for fisheries management. Declared fish habitats should be placed in coastal habitats with high structural connectivity to ensure sustainability of fisheries in light of environmental changes.

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Bellchambers, Lynda M., Scott N. Evans e Jessica J. Meeuwig. "Abundance and size of western rock lobster (Panulirus cygnus) as a function of benthic habitat: implications for ecosystem-based fisheries management". Marine and Freshwater Research 61, n.º 3 (2010): 279. http://dx.doi.org/10.1071/mf09031.

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Ecosystem-based fisheries management (EBFM) requires the expansion of fisheries research programs to include the relationship between target species and their habitats such that trophic and other ecological interactions can be assessed. The western rock lobster (Panulirus cygnus) is an ecologically important species that supports Australia’s most valuable single-species fisheries. We tested the relationship between abundance and size of western rock lobster and benthic habitats based on the annual independent breeding stock survey and benthic towed video transects. The work was undertaken at Dongara, Jurien Bay and Lancelin, Western Australia between 2005 and 2007. Abundance of western rock lobster was significantly but moderately related to benthic habitat (adjR2 = 0.28), with high abundances associated with high cover of mixed assemblage and Ecklonia sp. Size was effectively predicted by habitat (adjR2 = 0.65) with larger lobsters found in mixed assemblages with sponge and smaller lobsters associated with mixed assemblage with Ecklonia sp. Our study has shown that understanding the influence of habitat and fishing pressure on the abundance and size of targeted species is a critical step in the effective implementation of EBFM.

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Braccini, Matias, e Stephen Taylor. "The spatial segregation patterns of sharks from Western Australia". Royal Society Open Science 3, n.º 8 (agosto de 2016): 160306. http://dx.doi.org/10.1098/rsos.160306.

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The extent to which sharks segregate by size and sex determines the population structure and the scale at which populations should be managed. We summarized 20 years of fisheries-dependent and independent sampling to define the spatial patterns of size and sexual segregation for sharks in Western Australia. Carcharhinus obscurus and C. plumbeus showed a large-scale (more than 1000 km) latitudinal gradient in size. Large individuals occurred predominantly in the northwest and north whereas smaller individuals occurred predominantly in the southwest and south. Mustelus antarcticus and Furgaleus macki showed strong sexual segregation at very large scales. Females occurred predominantly in the west and southwest whereas the proportion of males in catches substantially increased in the southeast. The populations of other shark species did not show sex and size segregation patterns at very large scales; most species, however, showed varying degrees of segregation when data were analysed at a smaller scale. These findings highlight the importance of matching the scale of observation to the scale of the phenomenon observed. As many shark species are highly mobile, if sampling is opportunistic and constrained both temporally and spatially, the observed segregation patterns may not be representative of those at the population level, leading to inaccurate scientific advice.

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Braccini, Matias, e Hilario Murua. "Quantifying shark and ray discards in Western Australia’s shark fisheries". Marine and Freshwater Research 73, n.º 3 (9 de novembro de 2021): 283–91. http://dx.doi.org/10.1071/mf21159.

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Commercial fisheries can discard a considerable volume of sharks and rays, which, as a group, are of high conservation concern. In Western Australia (WA), commercial shark fishing commenced in the 1940s; however, catch time series are not available for discarded species. The present study quantified catch (i.e. dead individuals) time series of discarded sharks and rays in WA’s shark fisheries using on-board observer information collected since 1993 and testing assumptions through sensitivity analysis. Overall, 18 shark and ray taxonomic groups were discarded, comprising ~20% of the observed catch by number. Port Jackson shark, southern eagle ray and spurdogs were the most commonly discarded elasmobranchs, followed by western wobbegong, angel sharks, stingrays, and guitarfish and shovelnose rays. For the base case scenario, the catch of these species was small, peaking at 12.6, 5.6, 1.3, 1.8, 4, 1.3 and 2.7 tonnes (Mg) respectively, given their low post-release mortality (PRM). Current catch levels were even lower (e.g. <5 Mg for Port Jackson shark). Other discarded elasmobranchs were rarely caught. Assuming 100% PRM resulted in higher annual catches, highlighting the need for further research on the PRM of sharks and rays. The reconstructed catch series will be used in risk assessments to determine the sustainability of discarded species.

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Braccini, Matias, Ainslie Denham, Michael F. O'Neill e Eva Lai. "Spatial and temporal patterns in catch rates from multispecies shark fisheries in Western Australia". Ocean & Coastal Management 213 (novembro de 2021): 105883. http://dx.doi.org/10.1016/j.ocecoaman.2021.105883.

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Kirkwood, Roger, Michael Lynch, Nick Gales, Peter Dann e Michael Sumner. "At-sea movements and habitat use of adult male Australian fur seals (Arctocephalus pusillus doriferus)". Canadian Journal of Zoology 84, n.º 12 (dezembro de 2006): 1781–88. http://dx.doi.org/10.1139/z06-164.

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Foraging by adult male otariids, a demographic component that often interacts with commercial fisheries, are poorly known. To assess movement patterns and habitat use, nine adult male Australian fur seals ( Arctocephalus pusillus doriferus Wood Jones, 1925) from Seal Rocks, in northern Bass Strait, southeastern Australia, were tracked for periods ranging from 66 to 223 d during 1999–2001. Mean ± SD at-sea and on-land durations were 6.9 ± 2.1 d (range 2.3–10.3 d, n = 9 seals) and 2.4 ± 0.9 d (range 0.8–4.1 d), respectively. All seals foraged almost exclusively in continental shelf waters and mostly (65%–97% of time at sea) in water columns that were between 40 and 100 m deep. Six of nine seals tracked for >30 d spent 64%–98% of their time-at-sea foraging at distances <200 km from Seal Rocks, although the maximum distance achieved from the colony was 1208 km. The seals’ foraging ranges overlapped with the ranges of operation of virtually all fin-fish fisheries in southeastern Australia, but fisheries overlap was low in the most frequented foraging area of central-western Bass Strait.

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Gales, N. J., B. Haberley e P. Collins. "Changes in the abundance of New Zealand fur seals, Arctocephalus forsteri, in Western Australia". Wildlife Research 27, n.º 2 (2000): 165. http://dx.doi.org/10.1071/wr99027.

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New Zealand fur seals, Arctocephalus forsteri, have been increasing in abundance in South Australia for at least the past three decades. A survey of New Zealand fur seals during the 1989/90 breeding season determined that about 20% of the Australian population bred at 16 sites in Western Australia, amounting to 1429 pups and an absolute abundance estimate of 7100 fur seals. A further survey of all fur seal colonies in Western Australia to determine current pup production and abundance estimates, and trends in pup production since the previous survey was undertaken in January 1999. Of the 17 breeding sites now known in Western Australia, 16 were surveyed and pup production had increased at all but one. The rate of change in pup production at the one unsurveyed site (West Island), was estimated as being equivalent to the mean rate of change at other sites. The estimated mean annual, exponential rate of increase (r) for all sites was 0.09, equivalent to a 9.8% annual increase in pup production and an overall increase in pup production in Western Australia of 113.3% between surveys. Total annual pup production has increased to 3090. The estimate of absolute abundance of New Zealand fur seals in Western Australia is now 15 100, in contrast to the 7100 estimated for the 1989/90 season. Mortality of pups at the time of the survey was estimated to be at least 1.3%. It is predicted that New Zealand fur seal populations will continue to increase in Western Australia. This is likely to have important management implications regarding aquaculture and fisheries activities. The increase in fur seal populations appears to be in contrast to populations of Australian sea lions, Neophoca cinerea, for which preliminary data show no evidence for a population increase. It is unknown whether the dynamics affecting these two species are related.

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Thiele, Kevin R. "Corrigendum: Introducing the Australian Journal of Taxonomy, a new, fully-online, fully open-access journal for the rapid publication of new Australian species and other taxa". Australian Journal of Taxonomy 1 (10 de outubro de 2022): 1. http://dx.doi.org/10.54102/ajt.m4bkz.

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The following address for author Kevin Thiele was deleted: Western Australian Herbarium, Biodiversity and Conservation Science, Department of Biodiversity, Conservation and Attractions, Locked Bag 104, Bentley Delivery Centre, Western Australia 6983.

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Lynch, T. P., C. B. Smallwood, F. A. Ochwada-Doyle, J. Lyle, J. Williams, K. L. Ryan, C. Devine, B. Gibson e A. Jordan. "A cross continental scale comparison of Australian offshore recreational fisheries research and its applications to Marine Park and fisheries management". ICES Journal of Marine Science 77, n.º 3 (10 de junho de 2019): 1190–205. http://dx.doi.org/10.1093/icesjms/fsz092.

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Abstract Recreational fishing is popular in Australia and is managed by individual states in consultation with the Commonwealth for those fisheries that they regulate and also for Australian Marine Parks (AMPs). Fishers regularly access both state and offshore Commonwealth waters but this offshore component of the recreational fishery is poorly understood. Our study tested the functionality of existing state-based surveys in Western Australia (WA) and New South Wales (NSW) to better inform Commonwealth fisheries and AMP managers about recreational fishing in their jurisdictions. Catch estimates for nine species of interest to the Commonwealth were developed and two case study AMPs [Ningaloo (WA) and The Hunter (NSW)] were also chosen to test the ability of the state survey data to be disaggregated to the park scale. As each state’s fishery survey designs were contextual to their own management needs, the application of the data to Commonwealth jurisdictions were limited by their statistical power, however aspects of each states surveys still provided useful information. Continued evolution of state-wide survey methods, including collection of precise spatial data, and regional over-sampling would be beneficial, particularly where there are multiple stakeholder and jurisdictional interests. National coordination, to temporally align state surveys, would also add value to the existing approaches.

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Burman, R. R., e P. M. Jeffery. "Solar Radio Astronomy at the University of Western Australia, 1946-48". Publications of the Astronomical Society of Australia 10, n.º 2 (1992): 168–69. http://dx.doi.org/10.1017/s1323358000019512.

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AbstractA small radio astronomy group led by S.E. Williams in the Department of Physics at the University of Western Australia operated in the pioneering days. Observations were made of solar radiation at 75 Mc/s (4 m), using a polar-mounted Yagi antenna on the University campus in the Perth suburb of Nedlands. The group produced four papers, three in Nature and a longer one published locally. Although the work was noticed internationally, its influence on the course of radio astronomy seems to have been slight, and even the existence of the group has been almost forgotten outside of its home department.

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Davie, Serena, Lisa Ledger e Susan Grylls. "Regional Partnerships: Building a Future Regional Workforce in Western Australia". Australian and International Journal of Rural Education 33, n.º 1 (23 de março de 2023): 57–60. http://dx.doi.org/10.47381/aijre.v33i1.363.

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Following the success of a pre-service teacher hub in the Pilbara region of Western Australia, a decision was made to establish a second hub within the same region in another town. The second hub will be a collaboration between the Pilbara Universities Centre (PUC) and the Western Australian Department of Education. Although the PUC does not currently train teachers, it does, however, provide administrative, academic and pastoral support to a range of local education students studying at both bachelor and post-graduate levels in the field of education. The PUC also has students from many other disciplines who can add to the depth of the pre-service teacher hub. The PUC has the potential to grow, and it makes sense for the Department of Education’s pre-service teacher hub to work in collaboration with the PUC to develop regional employees. The hub provides a way to connect and upskill not just pre-service teachers, but also students from other disciplines.

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Barnes, Thomas C., Claudia Junge, Steven A. Myers, Mathew D. Taylor, Paul J. Rogers, Greg J. Ferguson, Jason A. Lieschke, Stephen C. Donnellan e Bronwyn M. Gillanders. "Population structure in a wide-ranging coastal teleost (Argyrosomus japonicus, Sciaenidae) reflects marine biogeography across southern Australia". Marine and Freshwater Research 67, n.º 8 (2016): 1103. http://dx.doi.org/10.1071/mf15044.

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Population structure in marine teleosts is often investigated to aid conservation and fisheries management (e.g. to assess population structure to inform restocking programs). We assessed genetic population structure of the important estuary-associated marine fish, mulloway (Argyrosomus japonicus), within Australian waters and between Australia and South Africa. Genetic variation was investigated at 13 polymorphic microsatellite markers. FST values and Bayesian estimates in STRUCTURE suggested population differentiation of mulloway within Australia and confirm strong differentiation between South Africa and Australia. The 12 Australian sample sets fell into one of four spatially separated genetic clusters. Initially, a significant signal of isolation-by-distance (IBD) was evident among Australian populations. However, further investigation by decomposed-pairwise-regression (DPR) suggested five sample sets were influenced more by genetic-drift, rather than gene-flow and drift equilibrium, as expected in strong IBD cases. Cryptic oceanographic and topographical influences may isolate mulloway populations from south-western Australia. The results demonstrate that DPR is suitable to assess population structure of coastal marine species where barriers to gene flow may be less obvious than in freshwater systems. Information on the relative strengths of gene flow and genetic drift facilitates a more comprehensive understanding of the evolutionary forces that lead to population structure, which in turn informs fisheries and assists conservation management. Large-bodied predatory scale-fish may be under increasing pressure on a global scale, owing to a variety of anthropogenic reasons. In southern Australia, the iconic sciaenid A. japonicus (mulloway, jewfish or kob) is no exception. Despite the species supporting important fisheries, much of its ecology is poorly understood. It is possible that a greater understanding of their genetic population structure can help ensure a sustainable future for the only southern Australian sciaenid.

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Hart, Anthony M., Dave Murphy, S. Alex Hesp e Stephen Leporati. "Biomass estimates and harvest strategies for the Western Australian Octopus aff. tetricus fishery". ICES Journal of Marine Science 76, n.º 7 (21 de agosto de 2019): 2205–17. http://dx.doi.org/10.1093/icesjms/fsz146.

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Abstract Octopus aff. tetricus is the target of Australia’s most significant octopus fishery. We utilized both fishery-independent surveys and fishery data from spatially detailed catch and effort logbooks to examine distribution and abundance across the spatial and depth ranges of the population. From this, a harvest strategy was developed to form the basis for monitoring, assessment, and management. Octopus aff. tetricus is abundant and widely distributed in Western Australia, with a biomass density range of 150–1000 kg km−2. This is comparable to Octopus vulgaris fisheries in the Mediterranean and sub-Saharan Africa. From an estimated habitat area of 20 073 km2, total biomass on the West Coast was estimated to be a minimum of 3600 tonnes whole weight with 90% certainty. At the current annual catch of 300 tonnes, overall population exploitation rate is low, given the high natural productivity of the species, which has a maximum age of 1.5 years and two recruitment pulses per year. A formal species name for O. aff. tetricus is required so its contribution to the Australian cephalopod fisheries harvest can be officially recognized.

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Кутузов, М. В., e А. А. Дорофеев. "ECOLOGICAL AND TOURISM POTENTIAL OF THE STATE WESTERN AUSTRALIA". Вестник Тверского государственного университета. Серия: География и геоэкология, n.º 2(42) (16 de junho de 2023): 69–86. http://dx.doi.org/10.26456/2226-7719-2023-2-69-86.

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Статья посвящена описанию эколого-туристского потенциала штата Западная Австралия. В качестве ресурсов экотуризма рассматриваются уникальные природные особенности штата и многочисленные охраняемые природные территории международного, государственного и регионального уровня. Информация для анализа взята из официальных источников австралийского правительства и соответствующего департамента изучаемого штата. The article is devoted to the description of the ecological and tourist potential of the state of Western Australia. The unique natural features of the state and numerous protected natural areas at the international, state and regional levels are considered as ecotourism resources. The information for the analysis is taken from official sources of the Australian government and the relevant department of the state under study.

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Harris, David, Danielle Johnston, Errol Sporer, Mervi Kangas, Nieves Felipe e Nick Caputi. "Biology and management of a multi-sector blue swimmer crab fishery in a subtropical embayment - Shark Bay, Western Australia". Marine and Freshwater Research 63, n.º 11 (2012): 1165. http://dx.doi.org/10.1071/mf12038.

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Stock assessments to support sustainable management in data-limited fisheries present a challenge to fisheries scientists and managers. This is the case with the Shark Bay Crab Fishery, which has expanded rapidly in the past 10 years, to become Australia’s highest-producing blue swimmer crab fishery. The resource is harvested commercially by two sectors, the Shark Bay crab trap and trawl fisheries (combined catch of ~800 t), as well as supporting a small but important recreational fishery. Commercial catch and effort data have been collected for the fishery since the early 1980s, commercial trap-monitoring data since 1999, and fishery-independent trawl-survey data since 2001. There is conflicting evidence on the impact that significant increases in catch and effort over the past decade has made on this fishery, such as legal catch rates remaining relatively constant, but declines occurring in the abundance of large crabs. There has also been concern over the level of latent effort in the fishery, with the trap sector currently operating at 70–80% of its potential effort and the capacity for further increases in crab landings by the trawl fleet. Since July 2011, the relative abundance of all size classes of crabs declined significantly. The reasons for this unexpected decline are yet to be understood, but are likely to be linked to adverse environmental extremes (flooding and very warm water temperatures) during the summer of 2010–2011, associated with a very strong La Niňa event. Preliminary assessment indicated that the spawning stock that led to the low recruitment was within historic ranges. The current challenge for the research and management of this fishery is to clarify the causes for this recent decline, and establish suitable biological indicators that will determine the appropriate level of catch and harvest strategy to ensure the future sustainability of the stock.

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Hendrie, Delia, e Duncan Boldy. "Hospital services and casemix in Western Australia". Australian Health Review 25, n.º 1 (2002): 173. http://dx.doi.org/10.1071/ah020173.

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The Health Department of WA currently operates as a single integrated funder and purchaser of health services for the State. Health Service Agreements defining the level of health provision are negotiated with the various health services in WA. During the latter part of the 1990s, the funding of public hospitals for acute inpatient care moved away froma historical basis to output-based funding using a casemix approach based on Diagnosis Related Groups (DRGs).Other hospital services are still mainly purchased using historical funding levels, negotiated block funding or bedday payments, with output-based funding mechanisms under investigation. WA has developed its own approach toclassifying admitted patients that recognises differences in complexity of care among episodes grouped to the same DRG. WA also has a unique cost estimation model for calculating DRG cost weights, which is based on a linear estimate of the relationship between nights of stay in hospital and the cost of hospital care for each DRG. Another emerging trendin the provision of public hospital services in WA has been the greater involvement of the private sector through the contracting of private providers to operate public hospitals. While no close examination has been undertaken of the outcomes of these changes in terms of their effect on efficiency or other relevant indicators of hospital performance,current purchasing arrangements are being reviewed following recommendations made in a report by the HealthAdministrative Review Committee. No decision has yet been made as to future changes to the funding policy of WA public hospitals.

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Geelhoed, Gary C., e Nicholas H. Klerk. "Emergency department overcrowding, mortality and the 4‐hour rule in Western Australia". Medical Journal of Australia 196, n.º 4 (março de 2012): 1. http://dx.doi.org/10.5694/j.1326-5377.2012.tb04210.x.

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Geelhoed, Gary C., e Nicholas H. Klerk. "Emergency department overcrowding, mortality and the 4‐hour rule in Western Australia". Medical Journal of Australia 196, n.º 2 (fevereiro de 2012): 122–26. http://dx.doi.org/10.5694/mja11.11159.

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Collins, Deirdre A., Linda A. Selvey, Antonio Celenza e Thomas V. Riley. "Community-associated Clostridium difficile infection in emergency department patients in Western Australia". Anaerobe 48 (dezembro de 2017): 121–25. http://dx.doi.org/10.1016/j.anaerobe.2017.08.008.

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Yellapu, Bhargavi, Andrew Jeffs, Stephen Battaglene e Shane D. Lavery. "Population subdivision in the tropical spiny lobster Panulirus ornatus throughout its Indo-West Pacific distribution". ICES Journal of Marine Science 74, n.º 3 (28 de outubro de 2016): 759–68. http://dx.doi.org/10.1093/icesjms/fsw184.

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Many marine species with Indo-West Pacific distributions have been found to have a considerable level of genetic population structuring across this broad region. We investigated mitochondrial DNA diversity throughout the extensive range of the commercially valuable ornate spiny lobster, Panulirus ornatus, which has an unusually lengthy larval period that can last up to six months. In this study, 298 specimens were sampled from 17 locations covering the West Indian Ocean, Western Australia, Southeast Asia, and the Northwest and Southwest Pacific. Based on sequencing of a 461 bp fragment of mitochondrial control region, we found high levels of haplotype diversity (H = 0.99) and overall significant population differentiation (Φst = 0.113, P < 0.001). The West Indian Ocean and Western Australia populations were the most genetically divergent, with little differentiation among the remaining Southeast Asian and West Pacific populations. The Western Australia population showed evidence of being a peripherally isolated population, with significantly lowered effective population size, likely due to the prevailing ocean currents. The present results indicate that genetically distinct stocks of P. ornatus are present in the wild and that historical and present day biogeographic phenomena have likely influenced this population structure. The presence of these divergent stocks has major implications for both management of fisheries and aquaculture breeding programs for this valuable species.

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Meekan, Mark G., Conrad W. Speed, Robert D. McCauley, Rebecca Fisher, Matthew J. Birt, Leanne M. Currey-Randall, Jayson M. Semmens et al. "A large-scale experiment finds no evidence that a seismic survey impacts a demersal fish fauna". Proceedings of the National Academy of Sciences 118, n.º 30 (19 de julho de 2021): e2100869118. http://dx.doi.org/10.1073/pnas.2100869118.

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Seismic surveys are used to locate oil and gas reserves below the seabed and can be a major source of noise in marine environments. Their effects on commercial fisheries are a subject of debate, with experimental studies often producing results that are difficult to interpret. We overcame these issues in a large-scale experiment that quantified the impacts of exposure to a commercial seismic source on an assemblage of tropical demersal fishes targeted by commercial fisheries on the North West Shelf of Western Australia. We show that there were no short-term (days) or long-term (months) effects of exposure on the composition, abundance, size structure, behavior, or movement of this fauna. These multiple lines of evidence suggest that seismic surveys have little impact on demersal fishes in this environment.

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Trotman, Janina. "Women Teachers in Western Australian “Bush” Schools, 1900-1939: Passive Victims of Oppressive Structures?" History of Education Quarterly 46, n.º 2 (2006): 248–73. http://dx.doi.org/10.1111/j.1748-5959.2006.tb00067.x.

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Demography, distance, and die expansion of settlements created problems for the State Department of Education in Western Australia and other Australian states in the nineteenth and early twentieth centuries. Educational administration in Canada and parts of the United States faced similar issues with regard to the provision of schools. A common response was the establishment of one-teacher rural schools, frequently run by young, and sometimes unclassified, female teachers. In the United States locally elected school boards were the primary source of regulation, but in late nineteenth-century Western Australia such local boards had been stripped of their powers and were answerable to the newly established, highly centralized Education Department. Formal regulated teachers. The masculinized system of the Department and its inspectorate. All the same, however, the local community still exerted informal controls over the lives of teachers working and living in small settlements.

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Real, Daniel, Yong Han, C. Donovan Bailey, Saipriyaa Vasan, Chengdao Li, Marieclaire Castello, Sue Broughton, Alexander Abair, Sam Crouch e Clinton Revell. "Strategies to breed sterile leucaena for Western Australia". Tropical Grasslands-Forrajes Tropicales 7, n.º 2 (31 de maio de 2019): 80–86. http://dx.doi.org/10.17138/tgft(7)80-86.

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Keynote paper presented at the International Leucaena Conference, 1‒3 November 2018, Brisbane, Queensland, Australia.Strategies to breed sterile leucaena for Western Australia include plant breeding and biotechnology tools to generate sterile lines at both the tetraploid and triploid ploidy levels. For tetraploids, the main target species is the commercial Leucaena leucocephala, that is well known for its potential as a high-quality, productive and persistent forage. Gene editing technologies (CRISPR) will be utilized to edit out flowering genes and develop a non-flowering L. leucocephala. For triploids, the strategy is to cross tetraploid species (L. leucocephala and/or L. diversifolia) with diploid species to generate sterile triploid hybrids. The diploid parents will include species that have good forage attributes such as L. collinsii, L. macrophylla, L. shannonii and L. pulverulenta. Several of these triploid crosses have already been created by the Department of Primary Industries and Regional Development (Perth, Western Australia) and will be evaluated in the Kimberley and Pilbara regions of Western Australia for their agronomic performance and sterility. Vegetative propagation will be required for the tetraploid gene-edited non-flowering L. leucocephala. Triploids can either be vegetatively propagated, once generated, or generated via a seed production nursery.

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Thwaite, Anne. "Inclusive and Empowering Discourse in an Early Childhood Literacy Classroom with Indigenous Students". Australian Journal of Indigenous Education 36, n.º 1 (2007): 21–31. http://dx.doi.org/10.1017/s1326011100004385.

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AbstractThis paper presents an analysis of the classroom discourse and strategies of Marcia, an early childhood teacher of a class with a high percentage of Indigenous Australian students. These students have been demonstrably successful on standardised literacy tests, which is not the case for Indigenous students in general in Australia (e.g., MCEETYA, 200). It will be suggested here that Marcia’s approach and relationships with the students, as constructed in her discourse, have been a large contributing factor in this success. Marcia’s discourse can be described as both inclusive and empowering and, as such, it will be proposed that awareness of her techniques may be of benefit to teachers who are working with groups whom education systems tend to marginalise and disempower. Marcia’s lessons were observed as part of the project, “Teaching Indigenous Students with Conductive Hearing Loss in Remote and Urban Schools of Western Australia”. This project was based in Kurongkurl Katitjin, School of Indigenous Studies, at Edith Cowan University, Perth, Western Australia, and was funded by an Australian Research Council Strategic Partnerships with Industry [SPIRT] Grant and the industry partners: Department of Education of Western Australia, Catholic Education Commission of Western Australia and Aboriginal Independent Community Schools, Western Australia.

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McPherson, GR. "Reproductive biology of yellowfin tuna in the eastern Australian Fishing Zone, with special reference to the north-western Coral Sea". Marine and Freshwater Research 42, n.º 5 (1991): 465. http://dx.doi.org/10.1071/mf9910465.

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Developmental stages of oocyte maturation and degenerative stages of postovulatory follicles in yellowfin tuna from the eastern Australian Fishing Zone of the Coral Sea are described. The time of spawning of yellowfin appeared to be during the late evening and early morning. Final oocyte maturation occurred in less than 24 h; postovulatory follicles could not be identified in ovaries after 24 h. Spawning of yellowfin commenced in the north-western Coral Sea by October and had ceased in the central-western Coral Sea by late February. The duration of spawning appeared to be less protracted in the south-western Coral Sea. The average spawning frequency of female yellowfin in the western Coral Sea was once every 1.54 days. Significant differences in spawning frequency were found between different size classes of yellowfin; larger fish spawned more frequently. The spawning stock of yellowfin in the north-western and central-western Coral Sea could be the major source of recruits for the tuna fisheries off the eastern coast of Australia.

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Lenanton, R. C. J., e I. C. Potter. "Contribution of Estuaries to Commercial Fisheries in Temperate Western Australia and the Concept of Estuarine Dependence". Estuaries 10, n.º 1 (março de 1987): 28. http://dx.doi.org/10.2307/1352022.

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Newman, Stephen J., Michael C. Mackie e Paul D. Lewis. "Age-based demography and relative fisheries productivity of Spanish mackerel, Scomberomorus commerson (Lacepede) in Western Australia". Fisheries Research 129-130 (outubro de 2012): 46–60. http://dx.doi.org/10.1016/j.fishres.2012.06.006.

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Dunning, M., S. McKinnon, CC Lu, J. Yeatman e D. Cameron. "Demersal cephalopods of the Gulf of Carpentaria, Australia". Marine and Freshwater Research 45, n.º 3 (1994): 351. http://dx.doi.org/10.1071/mf9940351.

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Demersal trawl and dredge surveys of the Gulf of Carpentaria in the early summers of 1990 and 1991 provided the first comprehensive assessment of the cephalopod fauna of this shallow, tropical basin off northern Australia. Twenty-one taxa (comprising five loliginid squids, seven cuttlefishes, seven octopuses and two dumpling squids) were recorded. In addition to hosting species distributed broadly in the Indo-West Pacific (e.g. loliginid squids Sepioteuthis lessoniana, Photololigo cf. chinensis and P. cf. edulis; cuttlefishes Sepia eiliptica and Sepia pharaonis), the Gulf of Carpentaria represents the most northwesterly extent of the range of some eastern Australian species (e.g. Loliolus noctiluca and Sepia whitieyana). Squid catches were lower in the north-western gulf in 1990 and higher in shallower water during the more geographically restricted survey in 1991, whereas cuttlefish were more evenly distributed throughout the different sampling areas in both years. Broad size ranges of both sexes of the four most abundant species (P. cf. chinensis (northern form), P. cf. eduiis, S. eiliptica and S. pharaonis) are indicative of extended spawning seasons, and fully mature individuals of these species were evident throughout the gulf. Cephalopods are a minor component in reported domestic fisheries catches from the Gulf of Carpentaria, where penaeid prawns are targeted. High (though seasonal) squid catch rates were reported annually by Taiwanese trawlers targeting butterfish and squid from certain areas prior to 1979. With the observed population structure of the abundant cephalopod species and relatively high catch rates in some localities during these recent surveys, it is suggested that the cephalopod resources of the Gulf of Carpentaria could support increased commercial fisheries exploitation.

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Marsh, S. P., D. J. Pannell e R. K. Lindner. "The impact of agricultural extension on adoption and diffusion of lupins as a new crop in Western Australia". Australian Journal of Experimental Agriculture 40, n.º 4 (2000): 571. http://dx.doi.org/10.1071/ea99080.

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The growth of the sweet white lupin industry in Western Australia is a classic case of the adoption and diffusion of a new innovation in agriculture. In 1979, following the release of the cultivar Illyarrie, and the development of effective agronomic practices, the Western Australian Department of Agriculture (Agriculture Western Australia) commenced a major extension campaign to promote lupins. Between 1978 and 1987, the area of lupins grown increased from 39 000 to 877 000 ha. However, the pattern of adoption varied widely between regions, with differences in starting time, rate and ceiling levels of adoption. In this paper, we examine regional differences in the start time of the adoption process, and estimate the impact of various factors by using multivariate regression analysis. Results suggest that both Agriculture Western Australia extension activities and the presence of private consultants contributed to earlier start times of the adoption process.

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Fletcher, W. J., B. S. Wise, L. M. Joll, N. G. Hall, E. A. Fisher, A. V. Harry, D. V. Fairclough et al. "Refinements to harvest strategies to enable effective implementation of Ecosystem Based Fisheries Management for the multi-sector, multi-species fisheries of Western Australia". Fisheries Research 183 (novembro de 2016): 594–608. http://dx.doi.org/10.1016/j.fishres.2016.04.014.

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Currey-Randall, Leanne M., Ronen Galaiduk, Marcus Stowar, Brigit I. Vaughan e Karen J. Miller. "Mesophotic fish communities of the ancient coastline in Western Australia". PLOS ONE 16, n.º 4 (21 de abril de 2021): e0250427. http://dx.doi.org/10.1371/journal.pone.0250427.

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Marine diversity across the Australian continental shelf is shaped by characteristic benthic habitats which are determined by geomorphic features such as paleoshorelines. In north-western Australia there has been little attention on the fish communities that inhabit an ancient coastline at ~125 m depth (the designated AC125), which is specified as a key ecological feature (KEF) of the region and is thought to comprise hard substrate and support enhanced diversity. We investigated drivers of fish species richness and assemblage composition spanning six degrees of latitude along sections of the ancient coastline, categorised as ‘on’ and ‘off’ the AC125 based on depth, across a range of habitats and seafloor complexity (~60–180 m depth). While some surveyed sections of the AC125 had hard bottom substrate and supported enhanced fish diversity, including over half of the total species observed, species richness and abundance overall were not greater on the AC125 than immediately adjacent to the AC125. Instead, depth, seafloor complexity and habitat type explained patterns in richness and abundance, and structured fish assemblages at both local and broad spatial scales. Fewer fishes were associated with deep sites characterized by negligible complexity and soft-bottom habitats, in contrast to shallower depths that featured benthic biota and pockets of complex substrate. Drivers of abundance of common species were species-specific and primarily related to sampling Areas, depth and substrate. Fishes of the ancient coastline and adjacent habitats are representative of mesophotic fish communities of the region, included species important to fisheries and conservation, and several species were observed deeper than their currently known distribution. This study provides the first assessment of fish biodiversity associated with an ancient coastline feature, improving our understanding of the function it plays in regional spatial patterns in abundance of mesophotic fishes. Management decisions that incorporate the broader variety of depths and habitats surrounding the designated AC125 could enhance the ecological role of this KEF, contributing to effective conservation of fish biodiversity on Australia’s north west shelf.

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Wildy, Helen, e John Wallace. "School Leadership Development in Western Australia: An Impact Study". Journal of School Leadership 5, n.º 3 (maio de 1995): 248–71. http://dx.doi.org/10.1177/105268469500500304.

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This paper reports an impact study of the Western Australian School Leadership Program, an innovative leadership development program for principals, deputy principals and heads of department of elementary and secondary government schools in the state of Western Australia. Approximately half of the people in promotional positions in state government schools had participated in the program at the time of the study. Perceptions of the nature and extent of change in leader practice as a result of involvement in the program were sought from all program participants using a questionnaire and a series of case studies. A design feature of the study was that participants were asked to select a colleague with whom they worked closely to give their perceptions of the nature and extent of change. It was found that the program was perceived to have an impact on leader behavior in schools. This effect was enhanced when a number of leaders from the same school participated in the program.

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Stachowiak, G. W. "Bioengineering in the Department of Mechanical Engineering at the University of Western Australia". Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 205, n.º 2 (junho de 1991): 127–32. http://dx.doi.org/10.1243/pime_proc_1991_205_280_02.

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Fatovich, D. M. "Access block causes emergency department overcrowding and ambulance diversion in Perth, Western Australia". Emergency Medicine Journal 22, n.º 5 (1 de maio de 2005): 351–54. http://dx.doi.org/10.1136/emj.2004.018002.

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Gillman, Lucia, Daniel Fatovich e Ian Jacobs. "Mortality of interhospital transfers originating from an Emergency Department in Perth, Western Australia". Australasian Emergency Nursing Journal 16, n.º 4 (novembro de 2013): 144–51. http://dx.doi.org/10.1016/j.aenj.2013.07.001.

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Shan, F. "THE APPLE BREEDING PROGRAM AT THE DEPARTMENT OF AGRICULTURE AND FOOD WESTERN AUSTRALIA". Acta Horticulturae, n.º 976 (fevereiro de 2013): 57–61. http://dx.doi.org/10.17660/actahortic.2013.976.3.

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Aboagye-Sarfo, Patrick, e Qun Mai. "Seasonal analysis of emergency department presentations in Western Australia, 2009/10–2014/15". Journal of Applied Statistics 45, n.º 15 (23 de fevereiro de 2018): 2819–30. http://dx.doi.org/10.1080/02664763.2018.1441384.

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Hitchcock, Garrick. "Cross-border trade in Saratoga fingerlings from the Bensbach River, south-west Papua New Guinea". Pacific Conservation Biology 12, n.º 3 (2006): 218. http://dx.doi.org/10.1071/pc060218.

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Saratoga Scleropages jardinii (Saville-Kent 1892) is a popular aquarium and sportsfish native to southern New Guinea and northern Australia. In recent years the people of the Bensbach River area in Papua New Guinea's Western Province have been harvesting wild fingerlings for sale across the nearby international border in Indonesia's Papua Province. From there the fish are sold to dealers in other parts of Asia. The species is protected by law in Indonesia, and subject to various regulations in Australia. In Papua New Guinea there are no controls on its exploitation. Uncontrolled harvesting of fingerlings from the Bensbach and other river systems in south New Guinea has had negative impacts on local fisheries, and led to a decline in the Australian export trade in wild-caught and farm-bred Saratoga.

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LAST, PETER R., JUSTIN A. CHIDLOW e LEONARD J. V. COMPAGNO. "A new wobbegong shark, Orectolobus hutchinsi n. sp. (Orectolobiformes: Orectolobidae) from southwestern Australia". Zootaxa 1239, n.º 1 (21 de junho de 2006): 35. http://dx.doi.org/10.11646/zootaxa.1239.1.3.

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Orectolobus hutchinsi n. sp.. is a moderate-sized wobbegong shark found in shallow continental shelf habitats off Western Australia. It occurs from Coral Bay (near North West Cape) south to Groper Bluff (west of Bremer Bay) in depths of 9–106 m where it is caught as by-catch of local gillnet, longline, rock lobster and recreational fisheries. It is sympatric with two other commercial wobbegong species, Orectolobus maculatus and O. ornatus, but differs from these and other IndoPacific species in having the combination of a few unbranched dermal lobes, relatively tall dorsal fins, no warty tubercles on the back of adults, and dark brown corrugated saddles without white spots and blotches. Some details of its biology are also provided.

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Gardner, M. G., e R. D. Ward. "Population structure of the Australian gummy shark (Mustelus antarcticus GÜnther) inferred from allozymes, mitochondrial DNA and vertebrae counts". Marine and Freshwater Research 49, n.º 7 (1998): 733. http://dx.doi.org/10.1071/mf98009.

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The gummy shark (Mustelus antarcticus) is the main target of southern Australian shark fisheries. Its stock structure was investigated through allozymes (up to 28 loci), mitochondrial DNA (up to 10 restriction enzymes) and vertebrae counts. The average heterozygosity per allozyme locus (0.099) and degree of polymorphism (0.255) was high for sharks. Composite mitochondrial DNA haplotype diversity (0.534) and mean nucleotide sequence diversity (0.16%) were also moderately high. Three of the seven polymorphic allozyme loci (CK-A*, LDH-1*, PEP*) and the mtDNA haplotypes showed significant spatial differentiation. Two genetic stocks were identified: one along the southern coast of Australia from Bunbury in Western Australia to Eden in New South Wales and one off northern New South Wales (in the region of Newcastle to Clarence River). There was some evidence for a third stock off Townsville, Queensland. The northern occurrences extend the known geographical range of this species. Vertebrae counts from Eden northwards increased, supporting the conclusion of population heterogeneity off eastern Australia.

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Babcock, R. C., J. C. Phillips, M. Lourey e G. Clapin. "Increased density, biomass and egg production in an unfished population of Western Rock Lobster (Panulirus cygnus) at Rottnest Island, Western Australia". Marine and Freshwater Research 58, n.º 3 (2007): 286. http://dx.doi.org/10.1071/mf06204.

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Surveys of spiny lobster (Panulirus cygnus) populations in shallow waters surrounding Rottnest Island in Western Australia revealed much higher levels of density, biomass and egg production in no-take than in fished areas. Density of lobsters was ~34 times higher in the sanctuary, and density of lobsters above minimum legal size around 50 times higher than in other areas around the island where recreational fishing is allowed. Mean carapace length (CL), total biomass and egg production of lobsters in the sanctuary zone were significantly higher than in adjacent fished areas. Large individuals (≥100 mm CL), especially large males, were found almost exclusively within the sanctuary. The abundance of mature animals in these shallow waters indicates that not all P. cygnus migrate to deep water and that shallow water habitats may currently be well below carrying capacity in terms of biomass and egg production. If implemented in a systematic way, unfished areas such as the Kingston Reefs could also provide a useful fisheries-independent tool for assessing trophic interactions and the structure and density of unfished populations, and for estimating parameters such as growth of larger individuals that may be rare or absent in more widely fished populations.

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McLaren, N. "Shrinking the Kimberley: Remote Area Psychiatry in Australia". Australian & New Zealand Journal of Psychiatry 29, n.º 2 (junho de 1995): 199–206. http://dx.doi.org/10.1080/00048679509075911.

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The Kimberley, the northernmost region of Western Australia, is still largely an empty wilderness. About twice the size of Victoria, it has a permanent population of some 22,000. Since 1987, the Health Department of WA has provided a psychiatric service to the region, but the practice of psychiatry in such a vast and remote area has proven to be very different from that in larger centres. This paper summarises three years' clinical experience in the region.

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Harker, Heather, e Anne Worrall. "From ‘community corrections' to ‘probation and parole’ in Western Australia". Probation Journal 58, n.º 4 (dezembro de 2011): 364–71. http://dx.doi.org/10.1177/0264550511421517.

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Geographically, Western Australia (WA) is one of the largest and most sparsely populated single jurisdictions in the world. Although much of the work of Community Corrections Officers (CCO) in metropolitan Perth is easily recognizable to offender managers in England and Wales, the state’s Indigenous citizens, many living in remote communities, are hugely over-represented in its prisons and pose particular challenges in respect of community supervision. The de-professionalization of CCO training and their supposed inter-changeability with prison officers led to a service that was in danger of ‘losing its way’ and whose performance was comparing unfavourably with that of other Australian states. This article traces the recent history of the post-Mahoney Report Department of Corrective Services, culminating in a return to the title of ‘Probation and Parole’, and asks whether the lessons learned in WA following this re-professionalizing process might be relevant to other jurisdictions.

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Corica, Tammy. "Tammy Corica: Study Coordinator, Department of Radiation Oncology, Sir Charles Gairdner Hospital, Western Australia". Health Information Management Journal 36, n.º 3 (novembro de 2007): 61–62. http://dx.doi.org/10.1177/183335830703600314.

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Bilson, A., R. L. Cant, M. Harries e D. H. Thorpe. "A Longitudinal Study of Children Reported to the Child Protection Department in Western Australia". British Journal of Social Work 45, n.º 3 (31 de outubro de 2013): 771–91. http://dx.doi.org/10.1093/bjsw/bct164.

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Lozano-Montes, Hector M., Neil R. Loneragan, Russell C. Babcock e Kelsie Jackson. "Using trophic flows and ecosystem structure to model the effects of fishing in the Jurien Bay Marine Park, temperate Western Australia". Marine and Freshwater Research 62, n.º 5 (2011): 421. http://dx.doi.org/10.1071/mf09154.

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Understanding the impacts of fishing on the trophic structure of systems has become increasingly important because of the introduction of Ecosystem Based Fisheries Management and the legislative requirements of fisheries to demonstrate that they are not having a negative impact on other species. A biomass-based dynamic model of Jurien Bay Marine Park (∼30°S) was constructed using Ecopath to investigate the ecosystem impacts of fishing (mainly commercial rock lobster, Panulirus cygnus) in the park, as an example of the potential responses of temperate marine ecosystems in Western Australia to commercial fishing. A simulated 50% reduction in fishing mortality for commercial finfish predicted that after 20 years, the biomass of important fished species (i.e. Pagrus auratus and Choerodon rubescens) would increase by up to 30%. A simulated total fishing closure resulted in much larger (2.5–8 fold) increases in targeted populations, but did not result in any predicted cascading effects on grazing invertebrates and benthic primary producers. The simulations suggest that the structure of this ecosystem is characterised more by bottom-up than top-down processes; i.e. benthic primary production is a major limiting factor. The present study identified trophic linkages and ecosystem processes such as the role of both low and high trophic-level groups and the impact of fishing mortality in the marine park, an essential step towards distinguishing the impacts of fishing from those attributable to natural or other human-induced changes.

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Artigos de revistas sobre o tema "Western Australia. Department of Fisheries"

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