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Full-Text Articles in Aquaculture and Fisheries

Fisheries Research Report No. 163 - Spatial Scales Of Exploitation Among Populations Of Demersal Scalefish: Implications For Management. Part 1: Stock Status Of The Key Indicator Species For The Demersal Scalefish Fishery In The West Coast Bioregion., Department Of Fisheries, Western Australia Sep 2007

Fisheries Research Report No. 163 - Spatial Scales Of Exploitation Among Populations Of Demersal Scalefish: Implications For Management. Part 1: Stock Status Of The Key Indicator Species For The Demersal Scalefish Fishery In The West Coast Bioregion., Department Of Fisheries, Western Australia

Fisheries Research Reports

Final FRDC report - Project 2003/052

The levels of exploitation on dhufish and pink snapper across the West Coast Bioregion and for baldchin groper at the Abrolhos Islands are above international benchmark standards. This indicates that these stocks are currently being overfished and are therefore likely to be being depleted to levels below those necessary to ensure their long-term sustainability. The current reliance of the dhufish catch on a single recruitment pulse together with the extremely truncated age distribution of pink snapper indicates that both these stocks are particularly vulnerable.

The West Coast Demersal Scalefish Fishery is a multi-species fishery …


Managing The Recreational Catch Of Demersal Scalefish On The West Coast. Future Management Scenarios For Community Consideration, Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne) Sep 2007

Managing The Recreational Catch Of Demersal Scalefish On The West Coast. Future Management Scenarios For Community Consideration, Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne)

Fisheries Management Papers

This paper discusses the major issues around controlling the total recreational catch. It also considers some of the tools available to manage the catch to specific target levels. The sustainability of fish species must be a key driver. However, the impacts on the social amenity of recreational fishing must also be taken into account. Any particular tool, if used on its own and to its full extent, may be rather “blunt” in its application and its impacts unacceptable to large parts of the community. The most effective and acceptable management package will probably be a mix of tools, supported by …


State Of The Fisheries Report 2006/2007, W J. Fletcher, Karen Santoro Jun 2007

State Of The Fisheries Report 2006/2007, W J. Fletcher, Karen Santoro

Status Reports of the Fisheries and Aquatic Resources

The State of the Fisheries Report is published annually to provide a detailed level of reporting on the management of fish stocks and their environment undertaken by the Department of Fisheries. A summary report from this document is included in the Department's Annual Report to Parliament, which includes the Department's nonfinancial (fishery) performance indicators. The Annual Report is no longer printed but is available through the Department's website. The State ofthe Fisheries Report summarises the outcomes of many departmental activities including management changes, compliance work and research to assess stock levels, monitor breeding stocks and undertake environmental assessments. This document …


Outcomes Of The Wetline Review. The Minister For Fisheries’ Decisions In Relation To The Future Management Of The West Coast And Gascoyne Commercial “Wetline” Fisheries, Department Of Fisheries Western Australia. May 2007

Outcomes Of The Wetline Review. The Minister For Fisheries’ Decisions In Relation To The Future Management Of The West Coast And Gascoyne Commercial “Wetline” Fisheries, Department Of Fisheries Western Australia.

Fisheries Management Papers

This document details my final decisions on the new management arrangements for the West Coast and Gascoyne commercial ‘wetline’ fisheries. The decisions that are set out in this document will form an important part of the holistic management package required to ensure the long-term sustainability of our demersal scalefish resources in the West Coast and Gascoyne bioregions. The new Management Plans will provide the framework within which commercial scalefish catches can be explicitly managed to sustainable levels and will promote greater commercial certainty and confidence for those operators who gain access to the fishery.


Fisheries Research Report No.161 - Distribution And Abundance Of Juvenile Pink Snapper, Pagrus Auratus, In The Gulfs Of Shark Bay, Western Australia, From Trap Surveys, Gary Jackson, C. Burton, Michael J. Moran, Ben Radford Apr 2007

Fisheries Research Report No.161 - Distribution And Abundance Of Juvenile Pink Snapper, Pagrus Auratus, In The Gulfs Of Shark Bay, Western Australia, From Trap Surveys, Gary Jackson, C. Burton, Michael J. Moran, Ben Radford

Fisheries Research Reports

Trap surveys using Antillean-Z fish traps were carried out across a range of depths and habitat types in the gulfs of Shark Bay between 1998 and 2000. Objectives of the study were (i) to evaluate the efficiency of the fish traps in catching 0+ and 1+ pink snapper (Pagrus auratus), (ii) to investigate the distribution and abundance of juvenile pink snapper in both gulfs using trap surveys, (iii) to investigate the influence of environmental factors including habitat-type on the distribution of juvenile pink snapper and, (iv) to develop trap indices of 0+ relative abundance and assess their use for monitoring …


A Sustainable Future For Fishing On Christmas Island. A Draft Five-Year Strategy For Managing Commercial, Recreational And Charter Fishing., Department Of Fisheries Western Australia. Apr 2007

A Sustainable Future For Fishing On Christmas Island. A Draft Five-Year Strategy For Managing Commercial, Recreational And Charter Fishing., Department Of Fisheries Western Australia.

Fisheries Management Papers

This draft strategy was developed by the Department of Fisheries, Western Australia, hereafter known as the “Department of Fisheries” which has responsibility for managing fish resources (within Territorial waters out to 12 nautical miles) on behalf of the Commonwealth Department of Transport and Regional Services (DoTARS), through the applied Fish Resources Management Act (FRMA) (WA)(CI) (the “Applied Act”). The Applied Act provides a legislative framework that allows for management arrangements to be developed specifically for Christmas Island. The management of fisheries in Western Australia uses an adaptive approach which balances the need for the effective management of fish stocks with …


Extensions Of Local Domains With Trivial Generic Fiber, William Heinzer, Christel Rotthaus, Sylvia Wiegand Apr 2007

Extensions Of Local Domains With Trivial Generic Fiber, William Heinzer, Christel Rotthaus, Sylvia Wiegand

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

We consider injective local maps from a local domain R to a local domain S such that the generic fiber of the inclusion map R -> S is trivial, that is P R (0) for every nonzero prime ideal P of S. We present several examples of injective local maps involving power series that have or fail to have this property. For an extension R -> S having this property, we give some results on the dimension of S; in some cases we show dim S = 2 and in some cases dim S = 1.


Plan Of Management For The Kalbarri Blue Holes Fish Habitat Protection Area, Department Of Fisheries Mar 2007

Plan Of Management For The Kalbarri Blue Holes Fish Habitat Protection Area, Department Of Fisheries

Fisheries Management Papers

The FHPA has been declared to protect and conserve an example of a near-shore reef community. In order to achieve this aim, and encourage the appreciation and conservation of fish, a number of management strategies have been identified which restrict recreational and commercial fishing. The FHPA is approximately 420 metres long and approximately 130 metres wide at the southern end and 140 metres wide at the northern end.


Fisheries Research Report No.159 - A 12-Month Survey Of Recreational Estuarine Fishing In The South Coast Bioregion Of Western Australia During 2002/03, C.B. Smallwood, N. R. Sumner Feb 2007

Fisheries Research Report No.159 - A 12-Month Survey Of Recreational Estuarine Fishing In The South Coast Bioregion Of Western Australia During 2002/03, C.B. Smallwood, N. R. Sumner

Fisheries Research Reports

The Recreational Fisheries Program of the Department of Fisheries, Western Australia, has a strategic plan to conduct comprehensive creel surveys of recreational fishing in each of the state’s marine bioregions (Penn et al., 2003). These bioregions are the West Coast, Gascoyne, Pilbara/ Kimberley and South Coast (Figure 1). To record and monitor changes in recreational catch and fishing effort, an integrated approach where all bioregions are to be surveyed on a regular basis was proposed. Until this study, the South Coast was the only bioregion in which a survey of recreational fishing had not been undertaken. Although originally intended to …


Integrated Fisheries Management Allocation Report Western Rock Lobster Resource, Integrated Fisheries Allocation Advisory Committee Feb 2007

Integrated Fisheries Management Allocation Report Western Rock Lobster Resource, Integrated Fisheries Allocation Advisory Committee

Fisheries Management Papers

This report, prepared by the Integrated Fisheries Allocation Advisory Committee (IFAAC), contains the committee’s advice and recommendations to the Minister for Fisheries on allocations for the western rock lobster resource. The setting of explicit allocations to sectors (Customary, recreational and commercial) is integral to Integrated Fisheries Management (IFM) in Western Australia.


Management Of The Houtman Abrolhos System. A Draft Review 2007 - 2017, Department Of Fisheries (Western Australia) On Advice From The Abrolhos Islands Management Advisory Committee Feb 2007

Management Of The Houtman Abrolhos System. A Draft Review 2007 - 2017, Department Of Fisheries (Western Australia) On Advice From The Abrolhos Islands Management Advisory Committee

Fisheries Management Papers

This review contains a brief description of the Abrolhos System and its special values. It also states the goal and principal objectives for management during the next ten years (2006-2016), along with updated strategies to achieve these objectives. The document succinctly outlines the direction for multiple use management of the Houtman Abrolhos Islands as determined by the Abrolhos Islands Management Advisory Committee (AIMAC). The Committee’s role is to advise the Minister for Fisheries on management of the Abrolhos Islands and the Abrolhos Islands Fish Habitat Protection Area.


Climate-Induced Forest Dieback As An Emergent Global Phenomenon, Craig Allen, David D. Breshears Jan 2007

Climate-Induced Forest Dieback As An Emergent Global Phenomenon, Craig Allen, David D. Breshears

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

An organized oral session at the annual meeting of the Ecological Society of America in San Jose, Calif., posed this question: Is climate-induced drought stress triggering increasing rates and unusual patterns of forest die-off at a global scale? Twenty-nine researchers representing five continents reported on patterns, mechanisms, and projections of forest mortality.


Outcomes Of The Wetline Review. The Minister For Fisheries Proposed Decision For The Future Management Of The West Coast And Gascoyne Commercial 'Wetline' Fisheries, Department Of Fisheries Western Australia. Dec 2006

Outcomes Of The Wetline Review. The Minister For Fisheries Proposed Decision For The Future Management Of The West Coast And Gascoyne Commercial 'Wetline' Fisheries, Department Of Fisheries Western Australia.

Fisheries Management Papers

This document details my proposed decisions regarding the new management arrangements for the West Coast and Gascoyne commercial “wetline” fisheries. Before finalising my position on the new management arrangements for these fisheries I invite any final comments on the proposed arrangements set out in this document. Although specific issues have been identified, your views are sought on any or all of the matters in the document of significance to you and/or your group.


Evaluation Of Habitat Enhancement Structure Use By Spotted Bass, Stanley L. Proboszcz, Christopher S. Guy Dec 2006

Evaluation Of Habitat Enhancement Structure Use By Spotted Bass, Stanley L. Proboszcz, Christopher S. Guy

The Prairie Naturalist

Habitat enhancement is a common and effective method used to positively influence fish populations. However, there is a paucity of speciesspecific evaluations of stream habitat enhancement structures for warmwater fishes. We evaluated use of half-log, rootwad enhancement structure, and simulated undercut bank (LUNKERS) by adult and juvenile spotted bass (Micropterus punctulatus) in natural and experimental streams. Enhancement structures were installed in Otter Creek, Kansas. Adult spotted bass use of natural and enhancement structure was documented weekly during summer and fall of 2001 and 2002 with radiotelemetry. Mean total length (TL) of adult fish was 292 mm (SE = …


A Scoping Paper : Matters Relevant To The Development Of A Sustainable Allocation And Growout Modul For Western Lobster Pueruli, Department Of Fisheries Western Australia Oct 2006

A Scoping Paper : Matters Relevant To The Development Of A Sustainable Allocation And Growout Modul For Western Lobster Pueruli, Department Of Fisheries Western Australia

Fisheries Management Papers

This Scoping Paper has been prepared as a first step in the development of a management framework for a commercial western rock lobster puerulus growout aquaculture industry in Western Australia. The purpose of this Scoping Paper is to identify and scope the issues associated with the development of such an industry and to identify matters which should be considered in the development of a management framework.


Fisheries Research Contract Report No. 14 - Aquatic Animal Health Subprogram: Development Of A National Translocation Policy Using Abalone And Prawns As Templates For Other Aquatic Species (Frdc Project No. 2004/080) Final Report, Brian Jones, Fran Stephens Oct 2006

Fisheries Research Contract Report No. 14 - Aquatic Animal Health Subprogram: Development Of A National Translocation Policy Using Abalone And Prawns As Templates For Other Aquatic Species (Frdc Project No. 2004/080) Final Report, Brian Jones, Fran Stephens

Fisheries Research Contract Reports

The use of scientifically based hazard identification, risk analysis and risk management is fundamental to managing unwanted effects. Hazards, such as quarantine incursions, will continue to occur despite the use of risk assessment methodologies but the frequency and severity of their occurrence will be reduced.

This was recognised by the Ministerial Council on Forestry, Fisheries and Aquaculture in 1999 when they published the "National policy for the translocation of live aquatic organisms".

This FRDC project provides a simple risk assessment methodology based on the Australian Standard for Risk Management (AS/NZS 4360: 2004) and one that is consistent with the Ministerial …


Fisheries Research Contract Report No. 15 - Aquatic Animal Health Subprogram: Pilchard Herpesvirus Infection In Wild Pilchards (Frdc Project No. 2002/044) Final Report, Brian Jones, Melanie Crockford, Richard Whittington, Mark Crane, Graham Wilcox Oct 2006

Fisheries Research Contract Report No. 15 - Aquatic Animal Health Subprogram: Pilchard Herpesvirus Infection In Wild Pilchards (Frdc Project No. 2002/044) Final Report, Brian Jones, Melanie Crockford, Richard Whittington, Mark Crane, Graham Wilcox

Fisheries Research Contract Reports

In 1995 and again in 1998/9, millions of pilchards (Sardinops sagax neopilchardus) were found dead or dying off the coast of Australia. Some pilchards in New Zealand were also affected during the 1995 epizootic. The epizootics moved progressively in a "bushfire-like" manner against the prevailing currents at a rapid speed. An uncharacterised herpesvirus, pilchard herpesvirus (PHV), was associated with both mortality events and, based on its occurrence in affected fish and the disease pathogenesis, generally accepted as the causative agent, although experimental evidence of its role was not established. Until recently, rapid and sensitive methods to detect PHV were not …


Fisheries Research Report No. 158 - An Assessment Of The Blue Swimmer Crab Fishery In Geographe Bay, Lynda M. Bellchambers, K. D. Smith, D. Harris Sep 2006

Fisheries Research Report No. 158 - An Assessment Of The Blue Swimmer Crab Fishery In Geographe Bay, Lynda M. Bellchambers, K. D. Smith, D. Harris

Fisheries Research Reports

The study was undertaken to provide detailed information on blue swimmer crabs in Geographe Bay so that the recreational and commercial fishery issues could be addressed using more accurate data than was previously available. A ministerial decision that banned commercial fishing for blue swimmer crabs in Geographe Bay was made in January 2005 while this study was underway. The intention of this report was to provide a summary of information on crab stocks in the region, not to alter the current management arrangements. This report describes experimental sampling, commercial catch statistics, commercial catch monitoring and surveys of recreational fishers to …


Age Structure And Reproductive Activity Of The Blue Sucker In The Milk River, Missouri River Drainage, Montana, Julie Bednarski, Dennis L. Scarnecchia Sep 2006

Age Structure And Reproductive Activity Of The Blue Sucker In The Milk River, Missouri River Drainage, Montana, Julie Bednarski, Dennis L. Scarnecchia

The Prairie Naturalist

The life history and ecology of the blue sucker (Cycleptus elongatus) in the lower Milk River, Montana were investigated in 2002 and 2003. A total of 253 blue sucker was captured; 248 adult fish, three larval fish, and two age-0 juveniles. The ages (n = 102) of the adult blue sucker ranged from 10 to 37 years; maximum age greatly exceeded ages reported in other studies. Blue sucker in the Milk River population grew slower, matured later, and lived longer than fish at lower latitudes. Adult females of the blue sucker were longer and weighed more than …


Integrated Fisheries Management Draft Allocation Report Roe's Abalone Perth Metropolitan Region., Integrated Fisheries Allocation Advisory Committee Aug 2006

Integrated Fisheries Management Draft Allocation Report Roe's Abalone Perth Metropolitan Region., Integrated Fisheries Allocation Advisory Committee

Fisheries Management Papers

The IFAAC has prepared this report, which documents the committee’s initial position on allocations for the abalone resource, along with the reasons for its conclusions as a basis for widespread community consultation. This report follows the IFAAC’s preliminary investigation of the abalone resourcesharing issues and consultation with stakeholders


Changing Maine, 1960-2010: Teaching Guide, Richard Barringer, New England Environmental Finance Center Jul 2006

Changing Maine, 1960-2010: Teaching Guide, Richard Barringer, New England Environmental Finance Center

Maine History & Policy Development

Unlike forty years ago, none of us is now certain what the future holds for Maine – except that it will be different. Maine has been transformed by the events of the recent decades. We have come into a new world, a new time – a new historical era, if you will. This new era, like previous eras in Maine history, will require of us new ways of thinking, new ways of understanding, new ways of organizing ourselves as a community of people, if the values and culture we share and cherish are to endure and flourish.


State Of The Fisheries Report 2005/2006, W J. Fletcher, F Head Jun 2006

State Of The Fisheries Report 2005/2006, W J. Fletcher, F Head

Status Reports of the Fisheries and Aquatic Resources

The State of the Fisheries Report is published annually to provide a detailed level of reporting on the management of fish stocks and their environment undertaken by the Department of Fisheries. A summary report from this document is included in the Department's Annual Report to Parliament, which includes the Department's non-financial (fishery) performance indicators. The Annual Report is no longer printed but is available through the Department's website. The State ofthe Fisheries Report summarises the outcomes of many Departmental activities including management changes, compliance work and research to assess stock levels, monitor breeding stocks and undertake environmental assessments. This document …


Draft Policy On The Granting, Renewal And Regulation Of Aquaculture Leases In Western Australia. A Discussion Paper., Department Of Fisheries Western Australia May 2006

Draft Policy On The Granting, Renewal And Regulation Of Aquaculture Leases In Western Australia. A Discussion Paper., Department Of Fisheries Western Australia

Fisheries Management Papers

This draft policy will set out matters that the Minister responsible for the administration of the Act considers to be of importance in respect of the performance by the Executive Director of this function under the Act. The final policy produced in relation to leases will provide guidance to the Executive Director and provide a level of certainty and transparency for the industry in relation to the formal processes that are followed in arriving at a decision in these matters


Fisheries Research Report No. 155 - Identification Of Western Australian Grey Nurse Shark Aggregation Sites., J. Chidlow, Daniel J. Gaughan, Rory Mcauley May 2006

Fisheries Research Report No. 155 - Identification Of Western Australian Grey Nurse Shark Aggregation Sites., J. Chidlow, Daniel J. Gaughan, Rory Mcauley

Fisheries Research Reports

Final report to the Australian Government, Department of the Environment and Heritage

The first phase of this project involved a desktop study to broadly identify areas where Western Australian Grey Nurse Sharks potentially aggregate for further investigation with field surveys. These areas were identified from information obtained from commercial shark fishers, previously unpublished research data, as well as anecdotal reports of sightings or captures from recreational divers and fishers, professional dive stores, dive clubs and charter boat operators. A total of 25 survey areas were identified during the desktop study, 16 of which were in depths less than 30m and …


Sea Urchin Predation In Misali Island Marine Park, Nicole Esclamado Apr 2006

Sea Urchin Predation In Misali Island Marine Park, Nicole Esclamado

Independent Study Project (ISP) Collection

The populations of sea urchins and their main predators, triggerfish (Balistidae), wrasses (Labridae) and emperors (Lethrinidae), were studied in the extractive and non-extractive zones of the Misali Island Marine Conservation Area in order to (1) evaluate the applicability of a sea urchin-sea urchin predator model developed in Kenya’s fringing reefs, (2) gain baseline data on Misali’s coral reef, and (3) evaluate the recovery status of the protected zone. This study revealed the predictive power of the sea urchin-sea urchin predator model for the reef ecosystem of Misali Island. As expected, a decline in sea urchin predators as a gross trophic …


Recommended Management Arrangements For The Gascoyne Commercial 'Wetline' Fishery. A Report To The Minister For Fisheries., West Coast And Gascoyne Management Planning Panel. Feb 2006

Recommended Management Arrangements For The Gascoyne Commercial 'Wetline' Fishery. A Report To The Minister For Fisheries., West Coast And Gascoyne Management Planning Panel.

Fisheries Management Papers

The ‘Wetline Review’ was established to implement an effective management framework for the commercial scalefish sector. It must be stressed at the outset that this review is focussed on the take of scalefish by the commercial sector. The levels of use between the various user groups in the Gascoyne region will be examined under the new IFM initiative.


Fisheries Research Report No. 153 - A 12-Month Survey Of Recreational Fishing In The Pilbara Region Of Western Australia During 1999-2000, P C. Williamson, Neil R. Sumner, B E. Malseed Feb 2006

Fisheries Research Report No. 153 - A 12-Month Survey Of Recreational Fishing In The Pilbara Region Of Western Australia During 1999-2000, P C. Williamson, Neil R. Sumner, B E. Malseed

Fisheries Research Reports

A 12-month creel survey of recreational boat-based and shore-based fishing in the Pilbara region (Onslow to Broome inclusive) of Western Australia was conducted between December 1999 and November 2000. During the survey 3,085 boat crews were interviewed at public boat ramps when they returned from their fishing trips. Patrols conducted along the coastline interviewed 73 groups of boat-based fishers and 569 groups of shore-based fishers at fishing locations and camp sites.

The total annual recreational fishing effort for the Pilbara region was estimated to be 201,000 fisher days (95%CI: 193,000 – 210,000). This comprised 109,000 fisher days by boats launched …


Fisheries Research Report No 154 - The Development Of A Rigorous Sampling Methodology For A Long-Term Annual Index Of Recruitment For Finfish Species From South-Western Australia., Daniel J. Gaughan, Suzanne G. Ayvazian, G Nowara, M Craine Jan 2006

Fisheries Research Report No 154 - The Development Of A Rigorous Sampling Methodology For A Long-Term Annual Index Of Recruitment For Finfish Species From South-Western Australia., Daniel J. Gaughan, Suzanne G. Ayvazian, G Nowara, M Craine

Fisheries Research Reports

Final FRDC Report - 1999/153.

This study has determined the optimal strategies to achieve statistically robust indices of recruitment of five key finfish species in south-western Australia. For another two species such indices could not be established. The sampling strategies developed will initially focus on the most appropriate location, month, and lunar phase, after which fine tuning of the sampling activity will be undertaken with respect to time of day, tide height, weather conditions etc. A significant outcome from the project is that five finfish species have a sampling strategy for recruits that can be utilized as a monitoring program …


Recommended Management Arrangements For The West Coast Commercial 'Wetline' Fishery. A Report To The Minister For Fisheries., West Coast And Gascoyne Management Planning Panel. Jan 2006

Recommended Management Arrangements For The West Coast Commercial 'Wetline' Fishery. A Report To The Minister For Fisheries., West Coast And Gascoyne Management Planning Panel.

Fisheries Management Papers

No abstract provided.


Recommended Access And Allocation Criteria For The West Coast And Gascoyne Commercial 'Wetline' Fisheries. A Report To The Ministry Of Fisheries., The Commercial Access Panel. Jan 2006

Recommended Access And Allocation Criteria For The West Coast And Gascoyne Commercial 'Wetline' Fisheries. A Report To The Ministry Of Fisheries., The Commercial Access Panel.

Fisheries Management Papers

The CAP’s primary responsibility was to develop criteria for access and allocation within the context of the management framework developed by the MPP. It is therefore important that this management paper is read in conjunction with the papers prepared by the MPP that outline the recommended management arrangements for the Gascoyne (Fisheries Management Paper No. 205) and the West Coast (Fisheries Management Paper No. 206) regions.