Animal Sciences Commons^™

Fisheries Research Contract Report No. 10 - Mother-Of-Pearl Shell (Pinctada Maxima): Stock Evaluation For Management And Future Harvesting In Western Australia, Anthony M. Hart, Kim J. Friedman

Fisheries Research Contract Reports

The West Australian Pearling industry is one of Australia's most valuable aquaculture industries, currently generating around $120 - $160 million annually. The majority of pearl shell used to culture pearls come from the pearling beds in the inshore waters near Broome. The fishery for pearl oysters preferentially targets smaller (120mm - 165mm DVM) shell (hereafter defined as 'culture' shell), that are more suitable for culturing of pearls, leaving larger MOP oysters (175mm+) on the pearling grounds. These larger pearl oysters, the majority of which are female (protandric hermaphrodites), form a major component of the broodstock for the

fishery. Although MOP …

Management Of Cattail (Typha Spp.) Stands With Glyphosate To Disperse Blackbirds, George M. Linz, H. Jeffrey Homan, Ryan L. Wimberly, Philip Mastrangelo, William J. Bleier

United States Department of Agriculture Wildlife Services: Staff Publications

In the Prairie Pothole Region of North Dakota and South Dakota, blackbirds (Icteridae) gather by the thousands in large premigratory roosts in late summer and early fall. Wetlands dominated by cattails (Typha spp.) provide ideal roosting habitat for these aggregations. Sunflower fields near large roosts can receive substantial damage. To eliminate potential roosting sites, Wildlife Services of the United States Department of Agriculture has implemented a cattail management program that aerially sprays dense cattail stands with the herbicide glyphosate m-(phosphonomethyl) glycine]. The continued viability of the program depends on a positive benefit-cost ratio and minimal environmental impacts. In this …

Proposals For Community Discussion On The Future Management Of Pink Snapper Fishing In Cockburn Sound And Surrounding Waters, Department Of Fisheries

Fisheries Management Papers

This discussion paper outlines the current issues associated with the management of the metropolitan pink snapper fishery along with some options for future management.

Fisheries Research Contract Report No. 8 - The Nutritional Management Of Barramundi, Brett Glencross

Fisheries Research Contract Reports

Barramundi nutrition research has been undertaken since 1988. Since that time the requirements for most nutrients, energy demand, ingredient utilisation and the effects of nutrition on flesh quality aspects have all been examined to varying extents.

Optimal protein content of diets has been shown to vary with diet energy density and also the size of fish which are being fed. Most studies have suggested a protein requirement from 45% to 55%. For small fish a protein to energy ratio of 25 to 30 g/MJ is suggested. Limited work has been done on fish larger than 500 g. The 10 essential …

Fisheries Research Report No. 145 - The Western Rock Lobster Fishery 1999/2000 To 2000/2001, C F. Chubb, E H. Barker

Fisheries Research Reports

Season 1999/2000 produced the highest catch in the history of the fishery of 14,500 tonnes following a high catch of about 13,000 tonnes in 1998/1999. The record season led to the highest ever catch in B & C zones of 4,500 and 8,300 tonnes respectively. The Abrolhos Islands fishery produced a catch of 1,800 tonnes, somewhat down on the previous seasons catch of 2,000 tonnes. The record catch was taken by a total of 594 vessels. Nominal fishing effort in 1999/2000 was 10,724 million pot lifts, slightly down on the previous season, which was 10,745 million pot lifts. The 2000/2001 …

Agribusiness Sheep Updates - 2004 Part 3, Ken Hart, Keith Croker, Rob Davidson, Mario D'Antuono, Evan Burt, Tanya Kilminster, Diana Fedorenko, Darryl Mcclements, Robert Beard, Sandy Turton, Martin Atwell, Robert Beard

Sheep Updates

Posters Can Merino Ewes be Teased to Synchronise Oestrus for a Summer/Autumn Mating? Ken Hart, Keith Croker, Department of Agriculture Western Australia, Rob Davidson, School of Animal Biology, University of Western Australia. Mario D'Antuono, Department of Agriculture Western Australia Damara Sheep: Now Looking Domestic Evan Burt and Tanya Kilminster, Department of Agriculture Western Australia Production and Water Use of Lucerne and French Serradella Under Three Sowing Rates Diana Fedorenko1,4, Darryl McClements1,4 , Robert Beard3,4 1Department of Agriculture, 3 Farmer, Meckering, 4CRC for Plant-based Management of Dryland Salinity. E-SHEEP - Individual Animal Management is here Sandy Turton & Martin Atwell, Department …

Agribusiness Sheep Updates - 2004 Part 2, Anyou Liu, Clinton Revell, Phil Nichols, Brad Nutt, Darryl Clements, Lucy Anderton, Stephen Gherardi, Chris Oldham, Paul Sanford, John Gladman, G. E. Donald, A. Edirisinghe, D. A. Henry, S. P. Gittins, R. C. G. Smith, Roy Butler, Kelly Pearce, David Masters, David Pethick, Andrew Thompson, Ken Hart, Johan Greeff, Beth Paganoni, Rachel Kirby, Matt Ryan, Kira Butler, Roger Heggarty, David Hopkins, Samantha Giles, Tom Plaisted, Mark Ferguson, Darren Gordon, John Young, Sandra Brown, Ian Mcfarland, John Archer, John Milton, Rob Davidson, Graeme Martin, David Lindsay, Johnathan England, Mandy Curnow, Karina P. Wood, Ashley K. White, B. Lloyd Davies, Paul M. Carberry, Mark Hyder, Mike Freer, Andrew Van Burgel, Kazue Tanaka, Andrew Peterson, Roger Wiese, Gonzalo Mata, Evan Burt, Amanda Miller, Anne Bennett, Felicity Flugge, Amir Abadi, Perry Dolling, Dean Thomas, Mike Ewing, David Lindsay, Emma Kopke, E. A. Dowling, E. K. Crossley, Brien (Ben) E. Norton, John Karlsson, Geoff Pollott, Diana Fedorenko, Darryl Clements, Robert Beard, Brown Besier, Una Ryan, Caroline Bath

Sheep Updates

Precision Pastures

Using Species Diversity to Improve Pasture Performance Anyou Liu and Clinton Revell, Department of Agriculture, Western Australia

New Annual Pasture Legumes for Sheep Graziers Phil Nichols, Angelo Loi, Brad Nutt and Darryl McClements Department of Agriculture Western Australia

Pastures from Space – Can Satellite Estimates of Pasture Growth Rate be used to Increase Farm Profit? Lucy Anderton, Stephen Gherardi and Chris Oldham Department of Agriculture Western Australia

Summer-active Perennial Grasses for Profitable Sheep Production Paul Sanford and John Gladman, Department of Agriculture, Western Australia

Pastures From Space – Validation Of Predictions Of Pasture Growth Rates DONALD, G.E^{.A …}

Plan Of Management For The Point Quobba Fish Habitat Protection Area, Department Of Fisheries

Fisheries Management Papers

Point Quobba is a popular site for locals and tourists for beach activities, fishing and snorkelling, and as a place for children to learn to swim and gain an awareness of the marine environment. The marine life and habitats of the area are of considerable scientific and recreational interest and are highly valued in the local community. However, the area is at risk from a high level of use and from conflict between users - which is due to the area’s proximity to popular tourism sites, the boat ramp, camping and settlement areas.

Proposals For Community Discussion - A Quality Future For Recreational Fishing In The South Coast. A Five-Year Strategy For Managing The Recreational Component Of The Catch., South Coast Recreational Fishing Working Group.

Fisheries Management Papers

With a growing population and advances in technology, fishing pressure will continue to grow and anglers will become more efficient at targeting fish, particularly offshore demersal species such as blue groper, dhufish, red snapper, breaksea cod and queen snapper. There is also a clear need for recreational fisheries management to complement the existing management arrangements for the charter industry, and provide the necessary framework for recreational fishing to be incorporated into an integrated management framework with other fishing sectors.

Proposals For Community Discussion : A Quality Future For Recreational Fishing In The Pilbara/Kimberley : A Five-Year Draft Strategy For Managing The Recreational Component Of The Catch, Pilbara/Kimberley Recreational Fishing Working Group.

Fisheries Management Papers

With a growing population and advances in technology, fishing pressure will continue to grow and anglers will become more efficient at targeting fish - particularly offshore demersal species, such as tropical snappers and emperors. There is also a clear need for recreational fisheries management to complement the existing management arrangements for the charter industry, and provide the necessary framework for recreational fishing to be incorporated into an integrated management framework with other fishing sectors.

Fisheries Management Paper No.180 - Future Management Arrangements For Western Australia's Temperate Shark Fisheries., Jane Borg, R. Mcauley

Fisheries Management Papers

This paper provides a summary of the attributes of these temperate shark fisheries, and sets out the proposed objectives and the measures available to achieve them.

In summary, primary measures are aimed at the sustainability of dusky and whiskery sharks, with dusky sharks being of greater concern as their status is more critical. The final decision on management of these fisheries cannot compromise sustainability, not only because of the Department’s obligations under the Fish Resources Management Act, 1994, but also:

• national and international obligations associated with ecologically sustainable development;

• export accreditation under the Environmental Protection and Biodiversity Conservation …

Analysis Of Phytoplankton Nutrient Limitation In Farmington Bay And The Great Salt Lake, Wayne A. Wurtsbaugh, Amy M. Marcarelli

Watershed Sciences Faculty Publications

The Great Salt Lake is bordered to the south and east by a growing metropolitan area that contributes high nutrients to Farmington Bay. This large bay is eutrophic, and there is concern that continued increases in effluents from the Salt Lake City area could extend to impact the much larger, and currently less productive, Gilbert Bay. This study focused on determining how nutrient supplies might limit, and therefore control, algal populations in Farmington Bay and Gilbert Bay at different salinities. We tested both short and long-term responses of algal growth using laboratory nutrient addition bioassays in the summer and fall …

Fisheries Research Report No. 147 - Quantification Of Changes In Recreational Catch And Effort On Blue Swimmer Crabs In Cockburn Sound And Geographe Bay, Neil R. Sumner, B E. Malseed

Fisheries Research Reports

Information on the size of the recreational catch was required to address resource allocation issues between recreational and commercial crabbers in Cockburn Sound and Geographe Bay. Management measures designed to allocate more of the catch to the recreational sector were put in place prior to this study at both locations. Estimates of the recreational catch were required to evaluate the effectiveness of these new management measures by comparing the catch shares with a survey conducted in 1996/97.

A 12-month creel survey of recreational boat-based and shore-based crabbing in Cockburn Sound was conducted between September 2001 and August 2002 and in …

Habitat Preferences Of Four Species Of Lizards Found At The Las Vegas Springs Preserve, Scott Garncarz

UNLV Theses, Dissertations, Professional Papers, and Capstones

Developing an understanding of the habitat usage of reptiles is important when trying to develop a management or restoration plan that is compatible with what is known of the reptile species that are being investigated. There are many lizard species found in the Mojave Desert, but there are only four known to inhabit the Las Vegas Springs Preserve (LVSP) in Las Vegas, Nevada. In the LVSP, sites are going to be restored with native Mojave Desert vegetation. Since there are many habitat types in the Mojave Desert, we must determine which types would be best suited for the four species …

Draft Aquaculure Plan For Exmouth Gulf, Department Of Fisheries

Fisheries Management Papers

The Plan’s objective is to provide a sound strategy for developing future aquaculture activities in Exmouth Gulf, while at the same time conserving the unique environment of Exmouth Gulf for present and future generations, and minimising conflict with existing and future users of Exmouth Gulf.

Draft Aquaculture Plan For Shark Bay., Department Of Fisheries

Fisheries Management Papers

The Department of Fisheries has prepared this draft aquaculture plan for Shark Bay to provide an agreed framework for future management of aquaculture. The final plan will assist prospective aquaculturists in preparing proposals and will guide the Department of Fisheries in the decision making process for aquaculture licence and lease applications. The plan identifies constraints to aquaculture development and areas where aquaculture may occur. It also identifies species that may be used for aquaculture development. Implementation of this plan will ensure that aquaculture can occur in a sustainable manner, while retaining the unique features of Shark Bay.

Fisheries Occasional Publication No. 6 - Anglers Guide To Assessing Reproductive Stage In Fish, Kim Smith, Mike Mackie, Department Of Fisheries Western Australia

Fisheries Occasional Publications

What is a gonad?

"Gonad" is a general term for a reproductive organ, and is used to describe both ovaries and testes. In male and female fish, the gonad is an elongated organ lying along the upper wall of the gut cavity (i.e. running immediately under the vertebral column). The gonad gonad has 2 lobes. Both lobes are attached to the body near the anus and extend forward inside the gut cavity.

As fish gonads ripen, they become larger, heavier and change colour. Immature and undeveloped adult gonads are very small, strap-like in shape, pinkish in colour and translucent (i.e. …

A Comparison Of Anuran Species Richness Between Primary And Secondary Forest In São Francisco Do Pará, Michael Reichert

Independent Study Project (ISP) Collection

Deforestation in the Amazon has become a serious conservation issue. The process of destruction of primary forest results in the creation of secondary forest that differs from primary forest in a number of important ways. Anurans (frogs and toads) are one group that may be affected by the loss of primary forest and creation of secondary forest areas, and are an important focus for conservation efforts. Previous studies on anuran reactions to loss of primary forest have been few and inconclusive. This study examined anuran species richness in an area of primary and secondary forest in order to determine whether …

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

Fisheries Management Papers

The overall objective of the proposed FHPA and the associated Plan of Management is to conserve and protect a portion of the near-shore reef ecosystem in the vicinity of the Blue Holes, and to manage activities within the area, to promote the observation and protection of fish living within the area. Strong community commitment has already been demonstrated, and this is crucial in the implementation of the proposed management plan

Fish Stock And Fishery Enhancement In Western Australia. A Summary Report., Department Of Fisheries

Fisheries Management Papers

This summary paper provides an overview of the key proposals set out in the full policy discussion paper, Fisheries Management Paper No 175. It does not discuss the theoretical background for the framework presented and therefore readers interested in such discussion are directed to Fisheries Management Paper No 175.

Both papers have been prepared to encourage public involvement in the development of policy for stock enhancement within Western Australian waters. Stock enhancement can involve an existing fishery or creation of a new fishery through the translocation of fish. It affects both public and private waters.

Hydrogen Sulfide In Farmington Bay And The Great Salt Lake: A Potential Odor-Causing Agent, Wayne A. Wurtsbaugh, Amy M. Marcarelli

Watershed Sciences Faculty Publications

Odors from Farmington Bay and/or the Great Salt Lake frequently impact residents of Salt Lake and Davis counties, but the agent causing the problem and the origin of the odor is uncertain. Hydrogen sulfide (H2S) gas is produced in the deeper layers of water in Farmington Bay and Gilbert Bay in the Great Salt Lake, but these deeper waters are generally part of high salinity deep-brine layers that are resistant to wind mixing. Hydrogen sulfide has a "rotten-egg" odor and is a likely component contributing to the "lake stink." The goals of this study were to determine (1) whether wind …

Cheloniidae (Marine Turtle) Nest Predation, John Woolard, Richard M. Engeman, Henry T. Smith, John Griner

United States Department of Agriculture Wildlife Services: Staff Publications

On 19 June 2003 at 0217 h, an opossum (Didelphis virginiana) was observed for 10 min while digging into a marine turtle nest and eating 4 eggs on the beach at St. Lucie Inlet Preserve State Park (SLIPSP) on Jupiter Island, Florida. The predation event was observed using night vision equipment as part of nightly patrols to protect turtle nests from raccoon (Procyon lotor) and armadillo (Dasypus noverncinctus) predation during the nesting season. After verification of an ongoing predation event, the opossum was euthanized and removed. Prior to implementing predator removal on this beach, …

Fish Stock And Fishery Enhancement In Western Australia. A Discussion Paper., Department Of Fisheries

Fisheries Management Papers

The objective of this paper is to propose a process that will allow the decision makers to objectively assess the appropriateness, benefits and costs of any stock enhancement proposal under Ecologically Sustainable Development (ESD) principles. To this end, this paper sets out a conceptual framework for assessment of stock enhancement projects, putting stock enhancement within the wider framework of fisheries and ecosystem management strategies, and their assessment, in Western Australia.

The Hardy Inlet Estuarine Fishery Management Issues And Options, Department Of Fisheries

Fisheries Management Papers

This paper presents information available on fish resources in the Hardy Inlet/Blackwood River system, and discusses the key management matters and likely impacts of a number of possible management measures.

Nitrogen Transport Through Linked Stream-Lake Systems Measured With N Tracer, Wayne A. Wurtsbaugh, Koren Nydick, Michelle A. Baker, Bob Hall

Watershed Sciences Faculty Publications

No abstract provided.

Laboratory-Scale Evaluation Of Incandescent And Compact Florescent Lamps For Poultry House Lighting, Leanne Gabriel, Donald M. Johnson

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

This laboratory-scale study compared 1000- and 2000-h rated 60W incandescent lamps and 6000-h rated 60W-equivalent compact florescent lamps over 6000 h of simulated broiler-house operation. The four original 1000-h incandescent lamps were replaced 22 times and the four 2000-h incandescent lamps were replaced 14 times. None of the four compact florescent lamps failed during the 6000-h experiment, although one was broken due to human error. Both types of incandescent lamps had significantly higher (p < .0001) mean illuminance (lx) than did the compact florescent lamps. The compact florescent lamps used significantly less (p < .0001) power (W) and had significantly higher (p < .0001) efficiency (lx/W) than the incandescent lamps. Despite a higher initial purchase price, the total cost (purchase + replacement + electrical) of operating compact florescent lamps was approximately 36% lower than the total cost of operating either type of incandescent lamp over the 6000 h period. The results of this study indicate that even at a least-cost price for electricity ($0.04/kW/h), growers can reduce total broiler-house lighting costs by replacing incandescent lamps with compact florescent lamps.

The Effects Of Environmentally Relevant Doses Of Perchlorate (Clo4-) On Rana Pipiens Metamorphosis And Development, Andrea N. Golli

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to assess the effects of environmentally relevant concentrations of perchlorate on the development and growth of Rana pipiens. Ammonium perchlorate is a rocket fuel oxidizer that is known to interfere with the function of the thyroid gland and some of the highest United States surface water concentration exists in the Las Vegas Wash, NV. Perchlorate not only blocks the body’s ability to incorporate iodine into T3 and T4 hormones through the sodium iodine symporter system, but also depletes the thyroid glands’ internal stores of iodine. Many of the steps that regulate metamorphosis in amphibians …

Pastoral Resources And Their Management In The Pilbara Region Of Western Australia, A M E Van Vreeswyk, Alan Payne, K A. Leighton

Agriculture reports

This report is a product of the rangeland survey of the Pilbara area of Western Australia which was conducted jointly by the Department of Agriculture and the Department of Land Administration ... in 1995-1999. This report is primarily intended to be used to assist pastoralists in station management and to assist others involved with the pastoral industry. The survey area includes all of the De Grey, East Pilbara and Roebourne/Port Hedland Land Conservation Districts, part of the Ashburton Land Conservation District.

Age And Growth Of Scotia Sea Icefish, Chaenocephalus Aceratus, From The South Shetland Islands, M. La Mesa, J. Ashford, E. Larson, M. Vacchi

OES Faculty Publications

Samples of Chaenocephalus aceratus (Lönnberg) were collected during a trawl survey carried out around the South Shetland Islands in January–February 2002. Fish were caught by commercial bottom trawl fishing down to 500 m depth, using a stratified randomized sampling design. As observed in other recent surveys within the same area, C. aceratus represented one of the predominant species. Overall, 357 specimens ranging from 13 and 67 cm (TL) were selected for the present study. Ages were estimated by counting annuli present in the sagittal otoliths, exposed by grinding and polishing along their sagittal plane. To estimate the precision of age …

Investigation Into The Use Of Bait Stations For The Control Of The European Wild Rabbit (Oryctolagus Cuniculus) In The Urban Bushland Reserve Of Bold Park, Perth, Western Australia, Malin Kordes

Theses : Honours

European rabbits in Australia have a significant impact on the environment and the economy. It is therefore necessary to implement control programs. In rural areas a number of methods including warren ripping and poisoning are frequently used. In urban areas though, rabbit control is not as easily accomplished because the use of many control methods is not appropriate. For example, the poison 1080 often cannot be used due to public health concerns and warren ripping cannot be used in conservation areas. Poisoning with pindone, an anticoagulant, is therefore one of few options available to the managers of urban reserves. However, …