Aquaculture and Fisheries Commons^™

Fisheries Research Report No 107 - Chemical Composition Of Yabbies (Cherax Albidus Clark 1936) From Western Australian Farm Dams, Kevin A. Francesconi, Noel M. Morrissy

Fisheries Research Reports

Proximate analyses, amino acid and fatty acid profiles, mineral composition and heavy metal and pesticide residues have been determined for tail muscle from Cherax albidus Clark 1936 (the yabby), sampled from Western Australian farm dams. The proximate analysis values for water, protein, ash, carbohydrate and energy content and the amino acid and fatty acid profiles of yabby tail muscle were similar to those reported for other decapods. Fat levels were low and, hence, cholesterol was very low in tail meat. Organochlorine pesticides were undetectable and heavy metal residues were well below maximum permitted concentrations for human consumption.

Fisheries Research Report No 105 - The Western Rock Lobster Fishery 1986/87 To 1990/91, C. F. Chubb, E. H. Barker, R. S. Brown

Fisheries Research Reports

This report on the western rock lobster (Panulirus cygnus, George 1962) fishery covers the five seasons 1986/87 to 1990/91 and is the latest in a series of reports on the State's largest and most valuable fishery. While more detailed data bases exist, these reports form a historical record of basic data for use by both industry and research workers, now and in the future. Catch and fishing effort in the seasons (1986/87 to 1990/91) varied between 8500 and 12300 tonnes and 11.3 and 12.8 million pot lifts respectively. This report provides detail on the distribution of catches and fishing effort; …

Fisheries Research Report No 104 - Assessment Of The Effects Of A Trial Period Of Unattended Recreational Netting In Selected Estuaries Of Temperate Western Australia, Between 1 January 1994 And 30 June 1995, R. C. Lenanton, R. Allison, Sg Ayvazian

Fisheries Research Reports

Gill nets have been used in coastal marine and estuarine waters of Western Australia to take fish for sale and/or domestic consumption since the State was first settled. However, over recent years, as the usage of these coastal waters has continued to increase, and the competition for fish resources becomes more intense, fishing methods, such as unattended gill nets that are indiscriminate with respect to target species, and generally ,wasteful of resources have become less tolerated by the general community.

As part of a push for tighter controls on the use of recreational gill nets, a requirement for fishers to …

State Of The Fisheries Report 1994/1995, Fisheries Department Of Western Australia

Status Reports of the Fisheries and Aquatic Resources

This State ofFisheries document is designed to be used as an adjunct to the Annual Report. This year is the first year that this document has been presented in this format. It is envisaged that the State of Fisheries document will be an annual report giving specific details on all fisheries of major importance to the commercial, recreational and aquaculture sectors of Western Australia. The State ofFisheries contains details such as landings, effort, catch rates, stock assessment, breeding stock levels and catch forecasts where possible. The data in this document are of the last full year (12 months) available to …

Bulletin No 4315 - Western Australian Agricultural & Fishery Exports At A Glance...1995/96, Graeme Robertson Dr, P. P. Rogers

Bulletins 4000 -

Second edition (revised and updated) January 1997.

Western Australia's economic growth and high productivity is based on a well established export-oriented economy that relies heavily on primary production.

Our abundant and diverse range of agricultural and fish products is supported by highly innovative and dynamic primary industries. These are backed by modern financial and physical infrastructure.

Western Australia's agricultural industries and fisheries have an international reputation for a professional approach to business and a proven track record in producing and supplying food and fibre products of consistently high quality. Clean air, unpolluted oceans and waterways, and abundant quality farmland are …

Something Fishy Is Going On - Aquaculture, David Berry

Journal of the Department of Agriculture, Western Australia, Series 4

Aquaculture id Australia's fastest growing primary industry. Product from fish farms is currently valued at $399 million, forecast to exceed $5oo million by 2000.

Whilst the figure pales into insignificance alongside world production (about $45 billion) it does represent a huge window of opportunity for prospective investors and for Australian primary producers who are keen to diversify.

David Berry reports on the prospects for yabbie and marron farming in Western Australia.

Influence Of Adjacent Seagrass On The Fish Assemblages Off Sandy Beaches, Matthew A. Vanderklift

Theses: Doctorates and Masters

As we attempt to maintain marine biodiversity mainly by focussing on habitats, we need to understand how marine biodiversity is affected by seagrass loss. Although managers and researchers widely acknowledge that habitat loss results in changes to marine biodiversity, quantitative knowledge of these changes is generally poor. In this study, fish assemblages (as one component of the biodiversity of sandy beaches) were examined in Cockburn Sound, Western Australia, to assess patterns that may be related to presence or absence of adjacent seagrass beds, If consistent patterns are evident, they may enable predictions regarding the effects of seagrass loss on the …

Fisheries Research Report No 102 - A Review Of International Aquaculture Development And Selected Species In Environments Relevant To Western Australia, C. Lawrence

Fisheries Research Reports

This paper discusses aspects of aquaculture development in countries visited during an international study tour, with particular reference to implications for the developing aquaculture industry in Western Australia.

The reasons for aquaculture development, including protein production, employment, fisheries enhancement, tradition/religion, conservation and revenue are discussed from an international perspective, along with case histories and models of development undertaken outside Australia.

The potential benefits of developing an aquaculture industry within Australia are outlined and the relative costs and benefits of developing aquaculture of native aquatic species or imported species are discussed, including relevant examples of each.

A number of species of …

Department Of Fisheries Annual Report 1994-1995, Department Of Fisheries, Western Australia

Department of Fisheries Annual Reports

In accordance with Section 62 of the Financial Administration and Audit Act 1985, I submit for your information and presentation to Parliament the Annual Report. of the Fisheries Department for the financial year ended 30 June 1995.

The Annual Report has been prepared in accordance with the provisions of the Financial Administration and Audit Act 1985 and Sections 57 and 35M of the Fisheries Act 1905.

Department Of Fisheries Annual Report 1993/94, Department Of Fisheries, Western Australia

Department of Fisheries Annual Reports

In accordance with Section 62 of the Financial Administration and Audit Act 1985, | submit for your information and presentation to Parliament the Annual Report of the Fisheries Department for the financial year ending 30 June 1994.

The Annual Report has been prepared in accordance with the provisions of the Financial Administration and Audit Act 1985 and Sections 57 and 35M of the Fisheries Act 1905.

The report State of Fisheries required under section 57 of the Fisheries Act (1905) is incorporated in the Fisheries Resource Management section of this annual report.

Fisheries Research Report No 101 - The Big Bank Region Of The Limited Entry Fishery For The Western Rock Lobster, Panulirus Cygnus, C F. Chubb, E H. Barker, C J. Dibden

Fisheries Research Reports

The Big Bank region lies to the north of the Abrolhos Islands zone of the limited entry western rock lobster fishery (Zone A) close to the edge of the continental shelf. Since 1986/87 the catches from this previously lightly exploited region have become important to a number of rock lobster fishermen operating in the northern (A and B) zones.

Fishing at Big Bank occurred predominantly in January and February of each season, however, recently introduced regulations have closed the region to fishing until February 10 each year. A maximum of 83 boats have operated in the region catching up to …

Review Of Bag And Size Limit Proposals For Western Australian Recreational Fishers., F. B. Prokop

Fisheries Management Papers

The Fisheries Department of WA and the Recreational Fishing Advisory Committee (RFAC), which is the peak body representing recreational fishers in WA, have been very pleased with the response to the implementation of two year review of recreational fisheries. Fisheries, RFAC and the fishing community recognise that the two year review was the first step in the continually evolving process of management of recreational fisheries. Since the new bag and size limit regulations were introduced in December 1991, there have been many suggestions for refinement and improvement. This management paper includes the most common and best suggestions for future management. …

Fisheries Management Paper No 53 - Rock Lobster Industry Advisory Committee - Report To The Minister For Fisheries And Management Arrangements For 1992/93, Fisheries Department Of Western Australia

Fisheries Management Papers

The Minister for Fisheries announced the 1992/93 fishing season management arrangements for West Coast Rock Lobster Fishery on 11 August 1992. These arrangements arose as a result of the Minister's consideration of the Rock Lobster Industry Advisory Committee's recommendations outlined in Fisheries Management Paper no.46.

Following this announcement, on 28 August 1992, the Western Australian Fishing Industry Council Sub-Committee on rock lobster submitted a range of alternative management proposals.

The Rock Lobster Industry Advisory Committee (RLIAC) met in Perth on the 9 September 1992 at the request of the Minister for Fisheries to further examine and report on management arrangements.

The West Coast Shark Fishery Draft Management Plan., D. A. Hall

Fisheries Management Papers

The main purpose of this report is to advance the development of a scheme of management for the commercial shark fishery off the west coast of Western Australia. There is considerable scientific concern over the biological status of commercially important shark stocks in this region, particularly dusky whaler (Carcharhinus obscura), thickskin (Carcharhinus plumbeus) and whiskery sharks (Furgaelus macki).

State Of The Fisheries Report 1991, Fisheries Department Of Western Australia

Status Reports of the Fisheries and Aquatic Resources

The State of the Fisheries is published annually by the Fisheries Department as part of the statutory reporting process required under the Fisheries Act. This report covers developments and production in the State's fisheries up to the end of December 1991. Full details of the department's operations for this period are published separately in the department's annual reports for the financial years ending June 1991 and 1992. Figures provided in the tables are derived from catch returns completed by fishermen which are processed by the Australian Bureau of Statistics up to June 1991. Other information provided in the text comes …

Fisheries Research Report No 91 - A Synopsis Of The Biology And The Exploitation Of The Australasian Pilchard, Sardinops Neopilchardus (Steindachner) Part Ii: History Of Stock Assessment And Exploitation, W. J. Fletcher

Fisheries Research Reports

This report summarises the studies which have provided information on the population characteristics and exploitation of the pilchard, Sardinops neopilchardus in Australia and New Zealand. This review was undertaken to determine whether existing data could be used to assess the status of Western Australian or other stocks or, alternatively, what additional information was required.

The mean size of pilchards caught varies among locations but, in general, fish are between 140 and 160 mm LCF, corresponding to ages 2 - 5 years. The length-weight relationship also varies between locations

Attempts to initiate pilchard fisheries have been hampered by the lack of …

State Of The Fisheries Report 1990, Fisheries Department Of Western Australia

Status Reports of the Fisheries and Aquatic Resources

The State of the Fisheries is published annually by the Fisheries Department as part of the statutory reporting process required under the Fisheries Act. This report covers developments and production in the State's fisheries up to the end of December 1990. Full details of the department's operations for this period are published separately in the department's annual reports for the financial years ending June 1990 and 1991. Figures provided in the tables are derived from catch returns completed by fishermen which are processed by the Australian Bureau of Statistics up to June 1990. Other information provided in the text comes …

State Of The Fisheries Report 1989, Fisheries Department Of Western Australia

Status Reports of the Fisheries and Aquatic Resources

The State of the Fisheries is published annually by the Fisheries Department as part of the statutory reporting process required under the Fisheries Act. This report covers developments and production in the State's fisheries up to the end of December 1989. Full details of the department's operations for this period are published separately in the department's annual reports for the financial years ending June 1989 and 1990. Figures provided in the tables are derived from catch returns completed by fishermen which are processed by the Australian Bureau of Statistics. Other information provided in the text comes from research programs conducted …

Fisheries Research Report No. 89 - Relationships Among Partial And Whole Lengths And Weights For Western Australian Pink Snapper Chrysophrys Auratus (Sparidae), M. J. Moran, C. Burton

Fisheries Research Reports

Pink snapper, Chrysophrysauratus (Sparidae) is one of the major commercial and recreational fish in Western Australian inshore waters. This report presents a number of equations and conversion factors for management and scientific study of the species. Equations to calculate total lengths from partial lengths will facilitate enforcement of minimum legal lengths when snapper are landed in a "head-off" condition. For fisheries science purposes, there are equations to convert among total length, standard length and length to caudal fork; and to convert lengths and weights of processed fish to whole lengths and weights. Length-weight relationships are presented and compared with those …

Fisheries Research Report No 99 - An Investigation Of Weight Loss Of Marron (Cherax Tenuimanus) In Air During Live Transport To Market, Noel Morrissy, Peter Walker, Cliff Fellows, Warren Moore

Fisheries Research Reports

It is generally acknowledged that more competitive marketing of Australian fisheries and aquaculture harvests requires closer attention to post-harvest technology. Historically, these products have been marketed in a variety of forms (e.g., for freshwater crayfish:- boiled fresh, boiled frozen, whole or tails, and live). Some of these forms present a product of actual, or perceived, poorer quality to the retailer and consumer and, thereby, obtain low prices.

Freshwater crayfish can survive out of water for extended periods and, so, can be economically transported alive to the (overseas) restaurant chef. This live product commands the very highest price for the grower. …

Fisheries Research Report No. 84 - The Marine Open Shelf Environment: Review Of Human Influences, D. A. Hancock

Fisheries Research Reports

For the purpose of this review, the marine environment has been classified into three physical zones - the littoral zone, the open-shelf environment and the coral reef. Since the boundaries are arbitrary, there will inevitably be some overlap, but for this review the subject matter will be related to the area between low water of ordinary spring tides and the edge of the continental shelf; i.e., to a depth varying to 200 metres.

Human influences may have a dual role in affecting the marine environment, firstly in a causative manner and secondly in providing a remedy, in which case the …

Fisheries Research Report No. 92 - Spread Of The Introduced Yabbie Cherax Albidus Clark, 1936 In Western Australia, N. M. Morrissy, G. Cassells

Fisheries Research Reports

This report presents information on the probable original introduction of the eastern Australian yabbie to farm dams in the Wheat-belt Region of the southwest of Western Australia (in 1932 at Narembeen); the probable type of yabbie (the "White Yabby", Cherax albidus Clark 1936 ) and source (Miram Swamp in the Victorian Wimmera); and, in 1985, the first voicing of concern over the spread of yabbies to natural habitats, particularly in the higher rainfall region of the southwest, together with current national and international concerns and advice on introduced aquatic species.

Commercial harvesting ("extensive" aquaculture) of existing yabbie stocks in wheat-belt …

Fisheries Research Report No. 83 - The Western Rock Lobster Fishery 1985/86, R. S. Brown, E H. Barker

Fisheries Research Reports

The 1985/86 annual catch of the western rock lobster Panulirus cygnus, totalled 7,191,968kg (Australian Bureau of Statistics (ABS) ), a drop of 1,774,497kg (19.8 per cent) on the 1984/85 season. The value of the 1985/86 catch was approximately $94M based on ABS figures. This drop in catch was almost entirely the result of lower puerulus (first post larval stage, approximately 9 to 11 months old) settlement three to four years before (i.e. 1982/83 and 1981/82). The fall in catch was accompanied by a drop in fishing effort (total number of pot lifts) of 12.1 per cent on the previous season …

Fisheries Research Report No 85 - A Description Of The British United Trawlers/Southern Ocean Trawlers Operation In The Great Australian Bight During The Period 19.11.77 To 28.5.79, M. H. Walker, S. J. Blight, D. P. Clarke

Fisheries Research Reports

This report documents the operations of three British United Trawlers/Southern Ocean Trawlers freezer stern trawlers in the Great Australian Bight for the period 19.11.77 to 28.5.79. During this period the trawlers conducted 20 fishing trips utilising demersal and pelagic trawling. A description and brief resume of these fishing operations is provided. The trawlers' vessel and gear specifications and fishing and processing operations are also described. The report provides background to Fisheries Research Report 86, which documents the demersal catches made during the trawler operations.

Fisheries Report No 82 - Effects Of Fish Trapping On The Shark Bay Snapper Fishery, M. J. Moran, J. Jenke

Fisheries Research Reports

Traps have been a controversial method of catching pink snapper Chrysophrys auratus (Sparidae) around Shark Bay, Western Australia, since 1959. The history of the issue and the relevant regulations are reviewed; and results of in­vestigations into specific concerns about trap fishing are reported. Concerns of ghost-fishing by lost traps have been largely allayed by underwater TV film of snapper escaping from a standard snapper trap.

A major concern was that traps might physically damage the benthic fauna, e.g. corals. A TV survey showed that while fragile hard corals are abundant in shallower water nearby, the deeper snapper grounds themselves are …

Department Of Fisheries Annual Report 1988/89, Department Of Fisheries, Western Australia

Department of Fisheries Annual Reports

In accordance with Section 62 of the Financial Administration and Audit Act 1985, I submit for your information and presentation to Parliament the Annual Report of the Fisheries Department for the financial year ending 30 June 1989.

The Annual Report has been prepared in accordance with the provisions of the Financial Administration and Audit Act 1985.

Section 57 of the Fisheries Act 1905 requires me to report to you as to the state of the fisheries of the State and for such report to be laid before both Houses of Parliament

State Of The Fisheries Report 1988, Fisheries Department Of Western Australia

Status Reports of the Fisheries and Aquatic Resources

The State of the Fisheries is published annually by the Fisheries Department as part of the statutory reporting process required under the Fisheries Act. This report covers developments and production in the State's fisheries up to the end of December 1988. Full details of the department's operations for this period are published separately in the department's annual reports for the financial years ending June 1988 and 1989. Figures provided in the tables are derived from catch returns completed by fishermen which are processed by the Australian Bureau of Statistics. Other information provided in the text comes from research programs conducted …

Fisheries Management Paper No. 21 - Commercial Fishing Licensing In Western Australia., Fisheries Department Of Western Australia.

Fisheries Management Papers

The purpose of this paper is to provide those in the fishing industry, as well as those planning to enter the industry, with a statement on the policies on boat licences, boat replacements and transfers, limited and restricted entry licences and licence splitting as they apply to the fisheries managed under the Western Australian Fisheries Act. The pearling industry, which is managed under another Act, is not included.

Fisheries Report No. 81 - A Research Vessel Survey Of Pearl Oyster And Prawn Resources North-West Of Broome Western Australia, J. W. Penn, R. Dybdahl

Fisheries Research Reports

Data from a research vessel survey in September and October 1987 and commercial catch records have been used to assess the pearl oyster and prawn stocks along the Broome coastline between 17°S and 18°S latitudes. Observations made by pearl divers indicated that the survey zone contained commercially significant quantities of unfished pearl oysters particularly in the depth range 10 to 27 m, but also extending out to 44 m depth. The pearl oysters in the survey zone were found to be predominantly mature animals and appeared to be part of the now lightly fished deep water spawning population extending from …

State Of The Fisheries Report 1987, Fisheries Department Of Western Australia

Status Reports of the Fisheries and Aquatic Resources

Western Australia continues to be one of the leading fishing States in Australia. The total gross value of fish, crustaceans and molluscs for 1986/87 was $172 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $213 million.