Aquaculture and Fisheries Commons^™

A Five-Year Management Stategy For Recreational Fishing On The West Coast Of Western Australia, West Coast Recreational Fishing Working Group

Fisheries Management Papers

In its discussion paper (Fisheries Management Paper No. 139), which was widely distributed and publicized, the working group put forward a range of management proposals for community discussion. These were developed after meeting directly with recreational fishers in key regional centres and receiving feedback from fisheries scientists and managers. The discussion paper attracted widespread comment, with more than 1,200 written submissions received from recreational fishers, angling clubs and other stakeholders. The working group would like to thank all those individuals and organisations that took the time to provide this valuable feedback. It was recognised that some of the most pressing …

Plan Management For The Cottesloe Reef Fish Habitat Protection Area., Fisheries Western Australia

Fisheries Management Papers

This document is the final Plan of Management for the Cottesloe Reef FHPA. The significant contribution made by the CMPG and members of the community in the preparation of this plan is acknowledged and appreciated by the Department of Fisheries. The overall objective of the Plan of Management is to promote and encourage protection of the Cottesloe Reef aquatic habitat and involve the community in its management. It is anticipated that the establishment of the Cottesloe Reef FHPA will provide a framework, through regulations and education, to manage human activities that have, or may have, a destructive impact on the …

Ministerial Policy Guideline No.17: Pearl Oyster Fishery, Department Of Fisheries Wa

Fisheries Administrative Guidelines

Issued pursuant to Section 24 of the Pearling Act 1990 - As amended to 16 August 2001:

• First issued October 1992
• First amendment January 1996
• Second amendment April 1997
• Third amendment August 2001

State Of The Fisheries Report 2000/2001, Jim W. Penn

Status Reports of the Fisheries and Aquatic Resources

The State of the Fisheries document is designed as an essential supplement to the Annual Report to Parliament and provides a more detailed level of information to support the Department of Fisheries' non-financial performance measures. By summarising management changes, compliance activities and research data including stock assessments and breeding stock levels, this document provides a valuable reference point for Western Australian fisheries of major importance to the commercial and recreational sectors. Information relevant to the State's aquaculture industries and the Department's Fish and Fish Habitat Protection Program is also provided. In keeping with the Department's significant 2000/2001 initiative to begin …

Fisheries Research Report No. 126 - A 12-Month Survey Of Recreational Fishing In The Swan-Canning Estuary Basin Of Western Australia During 1998-99, B E. Malseed, Neil R. Sumner

Fisheries Research Reports

A survey of recreational boat-based and shore-based fishing in the Swan-Canning Estuary Basin was conducted between August 1998 and July 1999. During the survey 1,302 interviews were conducted at boat ramps. The majority of these (62%) were not involved in fishing or crabbing activities, with a further 18 per cent fishing in the adjacent ocean. Of the remainder, 139 boats had been crabbing and 154 angling (29 were both crabbing and angling) within the Swan-Canning Estuary Basin. In addition to the interviews at boat ramps, 378 shore-based fishing parties were interviewed.

The survey estimated the total annual boat-based recreational fishing …

Fisheries Research Report No.128 - Aquaculture And Related Biological Attributes Of Abalone Species In Australia - A Review., Kylie A. Freeman

Fisheries Research Reports

China and Taiwan are the major producers of cultured abalone; with annual production estimated at 3,500 and 3,000 tonnes respectively. The world production of cultured abalone sold in 1999 was 7,775 tonnes. Australian farm production was still relatively low (89 tonne in 1999) but numerous abalone farms have been proposed and many have been constructed. On a national scale, Tasmania and South Australia are the major states involved in temperate abalone culture; however, new projects have commenced in Victoria and considerable interest exists in New South Wales. Pilot scale trials with tropical abalone aquaculture using the Donkey-ear abalone (Haliotis asinina) …

Fish Protection Measures To Ensure Fish For The Future, Jo Bunting

Fisheries Management Papers

The protection of Western Australia's aquatic animals, plants and habitats is important for many reasons. Fish, and many aquatic invertebrates, have significant commercial, recreational and social importance. Aquatic habitats provide food, refuge and breeding areas for fish and other animals. In addition, some habitats, such as rocky reefs and seagrass meadows, act as nursery sites for juvenile animals. Some habitats and their inhabitants (such as coral reefs) also have aesthetic values which support economically and socially important industries, such as tourism.

2001 Waterfowl Breeding Population Survey For South Dakota And North Dakota

United States Fish and Wildlife Service: Publications

The 2001 Waterfowl Breeding Ground and Habitat Survey for South and North Dakota was conducted 7 - 28 May with standard aerial coverage accomplished. Personnel changes occurred this year in both the air and ground crew. Habitat conditions were good to excellent through out most of the crew area. Compared to 2000 levels, wetland counts increased 58% in South Dakota and were similar (2%) in North Dakota. Waterfowl breeding populations were second and third highest of record for South Dakota (4.301 million) and North Dakota (5.767 million), respectively. The outlook for waterfowl production in 2001 is above average.

The Links Between Functionally Distinct Adult Assemblages Of Sardinops Sagax : Larval Advection Across Management Boundaries, Daniel J. Gaughan, K V. White, Warrick (Rick) J. Fletcher

Fisheries Research Articles

Otolith increment data were used to age larval Sardinops sagax collected from shelf waters between Kangaroo Island in South Australia (SA) and Albany in Western Australia (WA). Distributions of both ages and hatch-dates were compared between six regions across this broad area to examine the hypothesis that larvae arising from spawning sardines in WA may be advected by the Leeuwin Current to the central coast of SA prior to metamorphosis. Current and wind data were analysed to estimate potential rates of passive transport. It appears likely that larvae arising from commercially exploited S. sagax populations in WA can be passively …

For The Birds

United States Fish and Wildlife Service: Publications

As you learn to enjoy the beauty of birdlife around their home, you may wish to improve the “habitat” in your yard so that more birds will visit your property. You can attract birds by placing bird feeders, nest boxes, and bird baths in your yard, and by planting a variety of trees, shrubs, and flowers. These can provide good nesting sites, winter shelter, places to hide from predators and natural food supplies that are available year-round.

Backyard bird feeding is a convenient way to enjoy wildlife. More than 65 million Americans of all ages watch, feed and landscape for …

Draft Plan Of Management For The Cottesloe Reef Proposed Fish Habitat Protection Area., Fisheries Western Australia

Fisheries Management Papers

The aim of this management plan is to promote and encourage the protection and rehabilitation of the aquatic habitat at Cottesloe Reef and to involve the community in its management.

In Support Of A Rationally Managed Fishery: Age And Growth In Patagonian Toothfish (Dissostichus Eleginoides), Julian R. Ashford

Biological Sciences Theses & Dissertations

Patagonian toothfish (Dissostichus eleginoides) occur on the continental shelves and shelf breaks of southern South America and the Southern Ocean. Stock structure, critical to good fisheries management, can be inferred from growth differences between areas, but available growth data are compromised by inconsistencies in age estimation methods, sampling and sample sizes, and techniques used to derive estimates. I asked the scientific question: how is growth in Patagonian toothfish structured spatially within the Southern Ocean? I developed a multi-stage randomized design to sample fish caught by commercial longline, and an age estimation methodology. Because toothfish are difficult to age, …

Fisheries Research Report No. 125 - A History Of Foreign Fishing Activities And Fishery-Independent Surveys Of The Demersal Finfish Resources In The Kimberley Region Of Western Australia, G Nowara, Stephen J. Newman

Fisheries Research Reports

The aim of this project was to collate all historical information regarding fishing activities relevant to the Northern Demersal Scalefish Fishery. Three primary sources of information were identified; foreign Taiwanese pair-trawl fishing activities; traditional Indonesian fishing activities; and fishery-independent (CSIRO) survey data.

The Taiwanese pair-trawl fishing catch and effort from 1980 to 1990 was concentrated into two main regions, the Broome area (120°-122°E) and the Holothuria Banks area (124°-126°E) in the north. The majority of trawls were undertaken in the mid-continental shelf region (60-100 m). The total catch of these vessels reached a peak of 4,394 tonnes in 1985. Effort …

Final Plan Of Management For The Lancelin Island Lagoon Fish Habitat Protection Area., Fisheries Western Australia, Australian Marine Conservation Society Friends Of Lancelin Island.

Fisheries Management Papers

The Lancelin Island Lagoon is a small area of reef habitat on the western side of Lancelin Island and a popular snorkelling and diving destination. Water depth ranges from less than 0.3 m on the intertidal reefs to less than 3 m on the sand or seagrass-covered bottom. The area has a diverse array of benthic marine habitat. During a marine survey of the area, over 200 flora and fauna species were positively identified, with many more remaining unidentified due to the diversity of species supported in this marine environment. The survey, which was facilitated by direct observations and photographs, …

Sustainable Tourism Plan For The Houtman Abrolhos Islands, Fisheries Western Australia

Fisheries Management Papers

The Abrolhos coral reefs are the southernmost living reefs in the Indian Ocean. They have a unique assemblage of tropical species of fish, reef corals and other invertebrates, which live in close association with temperate species, particularly of algae, and species endemic to Western Australia. The Abrolhos is the centre of the fishery for the commercially valuable western rock lobster (Panulirus cygnus). Terrestrial flora and fauna of the Abrolhos are relict and provide important reference areas on ecological interactions. Virtually all the islands of the Abrolhos archipelago have sea bird nesting and breeding areas, and populations of some species of …

Distribution, Morphometries, And Tooth Morphology Of The Genus Desmognathus In West Virginia, Jessica Ann Wooten

Theses, Dissertations and Capstones

Very few genera of vertebrates demonstrate variation in body size, color, pattern, and life history traits to the extreme that is demonstrated in the genus Desmognathus. Exact distribution of Desmognathus, as well as other genera of salamanders, is very difficult to outline because of hybridization between certain desmognathine species. Tooth morphology, tail keeling, head and body shape, and geographic location are factors used in the separation among species in this genus. There are five desmognathine salamanders, including D. monticola, D. fuscus, D. ochrophaeus, D. quadramaculatus, and 0. welteri in West Virginia. The purpose of this study was to analyze the …

A Natural History Study Of Desmognathus Welteri In West Virginia, Zachary Ira Felix

Theses, Dissertations and Capstones

The Black Mountain salamander, Desmognathus welteri, is a relatively large brownish-green salamander that possesses morphological characters associated with a semi-aquatic lifestyle. The history of this species in the state of West Virginia is an interesting one. Due to taxonomic confusion and the lack of a thorough investigation of the species in the state, little was known about the species until recently. Surveys for Desmognathus welteri in southern West Virginia revealed five new populations. This makes 17 localities for the species in the state. It appears D. welteri is restricted to relatively high elevation, high gradient, forested streams in the Cumberland …

Relationship Of Hydrological Conditions And Populations Of Breeding Piping Plovers, Daniel S. Licht

United States Fish and Wildlife Service: Publications

I used hydrological data and surveys of breeding piping plover (Charadrius melodus) from 1988 to 1997 to assess the relationship of water levels to piping plover breeding distribution, abundance, and habitat use in North Dakota. Piping plover abundance at wetlands surveyed in all years (n = 48) increased significantly as wetness increased (r = 0.93, P < 0.001). However, individual wetland sites often differed in their response to hydrological conditions with some sites showing significant decreases in piping plover abundance during wet periods. The abundance of piping plovers using the Missouri River system (Oahe and Sakakawea reservoirs and the free-flowing reaches of the river) correlated strongly with upland populations of piping plovers during periods of below-average water levels in the riverine system; however, once water levels within the Missouri River system reach a certain point the relationship turned negative with river populations·of piping plovers decreasing and upland populations of piping plovers increasing.

Validation Of Three Back-Calculation Models By Using Multiple Oxytetracycline Marks Formed In The Otoliths And Scales Of Bluegill × Green Sunfish Hybrids, Robert A. Klumb, Michael A. Bozek, Richard V. Frie

United States Fish and Wildlife Service: Publications

We assessed the accuracy of the Fraser–Lee, biological-intercept, and Weisberg back-calculation models to estimate growth from otoliths and scales of laboratory-reared juvenile bluegill × green sunfish hybrids (Lepomis macrochirus × Lepomis cyanellus). Hybrid sunfish were injected three times with oxytetracycline hydrochloride at 90- day intervals to mark bony structures, creating simulated annuli for model validation. Back-calculated lengths (BCLs) with otoliths were generally less accurate than scales for all three models. Errors ranged from –8.2 to 7.8% for the Fraser–Lee model, from –8.0 to 8.3% for the biological-intercept model, and from –6.5 to 14.3% for the Weisberg model. For …

Trace Element Concentrations In Plants And Sediments At Crescent Lake National Wildlife Refuge, Karen J. Nelson, Brent J. Esmoil

United States Fish and Wildlife Service: Publications

Crescent Lake National Wildlife Refuge (NWR) is located in the Sandhills of western Nebraska, an area which contains the largest remaining tract of mid-grass and tall-grass prairie in North America. Land use surrounding the refuge is dominated by rangeland and land use practices likely result in minimal inputs of point or non-point source pollution. Industrial development in the area is minimal and the refuge complex is believed to be in fairly pristine condition. The use of persistent organochlorine pesticides on the refuge has been limited. The objectives of this study were to determine background concentrations of metals in biotic and …

Yellow Jackets (Vespula Spp.) Disperse Trillium (Spp.) Seeds In Eastern North America, Jennifer A. Zettler, Timonthy P. Spira, Craig R. Allen

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Approximately 70 plant families worldwide have ant-dispersed seeds (myrmecochory). In this putative ant-plant mutualism, ants are attracted to and disperse seeds that have a lipid-rich elaiosome. We observed yellow jackets (Vespula spp.) dispersing seeds of three elaiosome-bearing species-Trillium cuneatum, T. undulatum and T catesbaei-in the Blue Ridge Mountains of North Carolina and South Carolina. Moreover, we estimated the mean distance yellow jackets dispersed seeds of T. cuneatum by placing intact fruits on index cards and recovering dispersed seeds on sheets placed on the ground surface. Of the seeds presented, 41% were recovered and the average dispersal distance …

Effects Of Epilimnetic Versus Metalimnetic Fertilization On The Phytoplankton And Periphyton Of A Mountain Lake With A Deep Chlorophyll Maxima, Wayne A. Wurtsbaugh, H. P. Gross, Phaedra E. Budy, Chris Luecke

Watershed Sciences Faculty Publications

Nutrients can load directly to either the epilimnion or metalimnion of lakes via either differential inflow depths of tributaries or intentional fertilization of discrete strata. We evaluated the differential effects of epilimnetic versus metalimnetic nutrient loading using 17-m-deep mesocosms that extended into the deep chlorophyll layer of oligotrophic Pettit Lake in the Sawtooth Mountains of Idaho. Addition of nitrogen plus phosphorus stimulated primary production nearly identically (2.4- to 4-fold on different dates) in both treatments, with the production peaks occurring in the strata where nutrients were added. The metalimnetic fertilization, however, resulted in equal or greater stimulation of chlorophyll a …

Saratoga National Fish Hatchery, Wyoming: Restoring America’S Fisheries

United States Fish and Wildlife Service: Publications

Saratoga NFH, established in 1911, has served as an egg-producing station during most of its years of operation.  Between 1915 and 1984, various strains of brook, rainbow, brown, golden and cutthroat trout and Dolly Varden eggs were produced.  In 1966, Saratoga NFH was formally designated as a broodstock hatchery, and in 1984 the hatchery became involved in the Great Lakes lake trout recovery program.  Today, the hatchery's broodstock program includes supplying about 5 million eyed Lewis Lake lake trout eggs to the Great Lakes restoration program and 3 to 4 million Plymouth Rock brown trout eggs for Service, State, and …

Fish Survey Of Nathan's Lake, Boyer Chute National Wildlife Refuge, Corey Lee, William Davison

United States Fish and Wildlife Service: Publications

The Columbia Fishery Resources Office conducted fish surveys at Nathan's Lake, a proposed component of Boyer Chute National Wildlife Refuge (NWR), in June 2001.  Boyer Chute NWR is located in the Missouri River Floodplain about three miles north or Omaha, NE and four miles southeast of Ft. Calhoun, NE.

Nathan's Lake is located about one mile southwest of Boyer Chute (Figure 1) in Washington County and is connected to the Missouri River by a drainage ditch with a control structure located at the northeast corner of the lake,  Nathan's Lake is approximately a 50-acre shallow lake (0.61-1.22-m) that contains aquatic …

Ennis National Fish Hatchery, Montana Restoring America’S Fisheries

United States Fish and Wildlife Service: Publications

Established in 1981, Ennis NFH was located for the purpose of taking trout eggs from wild populations, and introducing fingerling fish back into public waters to sustain and enhance the sport fishery.  The site was selected for the fractured rock out-cropping which gravity flows 15,000 gallons per minute of 54 °F spring waters; the ideal environmnet for producing trout.

In the 1970's the demand for catching trout decreased, but the demand for eggs increased.  More emphasis was placed on broodstock and by the mid-80's production exceeded 20 million eggs.  Today Ennis NFH operates as a federal broodstock hatchery and produces …

The Status And Distribution Of The Topeka Shiner Notropis Topeka In Eastern South Dakota, Carmen M. Blausey

Electronic Theses and Dissertations

The Topeka shiner Notropis topeka is a small (< 75 mm) minnow that inhabits prairie streams in several north central plains states. Once widespread and abundant throughout its historic range, the Topeka shiner is now found only in isolated populations. Because of an 80% reduction in occurrence throughout their range, the U.S. Fish and Wildlife Service listed the Topeka shiner as endangered in January 1999. At the time, limited information on habitat preferences and dist1ibution existed for this species in South Dakota. The objectives of this study were to measure local habitat features and water quality conditions at the reach scale at Topeka shiner study sites, create a model using these data to determine favorable habitat conditions, and identify fish species commonly associated with Topeka shiners. Fish and habitat data were collected at 61 tributary sites of the James, Vermillion, and Big Sioux rivers from June through September in 1999 and 2000. Sample sites in 1999 were based on historic Topeka shiner records in the South Dakota Natural Heritage Database. Sample sites in 2000 were based on a draft GIS model identifying potential Topeka shiner streams. Fish were collected with seines between block nets and standard procedures were used to measure physical and hydrological features of stream reaches. Cyprinids dominated the fish community for each river basin during both sample years. Insectivores and omnivores were the dominant trophic classes for each river basin for both sample years. Fish community associations for Topeka shiners were based on two stepwise logistic regression models: abundance of individual species at each site and presence or absence of individual species at each site. The abundance model indicated that Topeka shiners were most commonly associated with orangespotted sunfish Lepomis lutrenis and tadpole madtoms Noturns gyrinus. The presence/absence model showed that Topeka shiners were typically associated with red shiners Notropis lutrenis, tadpole madtoms Noturns gyrinus, black bullheads Ameiurus melas, and bigmouth shiners Notropis dorsalis. Habitat preferences were based on three stepwise logistic regression models: physical habitat water quality, and substrate composition at the reach scale. The physical habitat model indicated that Topeka shiners are associated with stream reaches that had low animal use, overhanging vegetation, stream bank vegetation comprised of sedges/rushes, low depositional zones, and run macrohabitat. The water quality model did not indicate any favorable or preferred conditions. The substrate model indicated that Topeka shiners are associated with stream reaches that had fine gravel or cobble substrates. The results of my study will lead to a better understanding of Topeka shiner distribution and habitat, and aid federal and state agencies in making management decisions that provide for protection and preservation of this species.

Salmonine Consumption And Competition For Endemic Prey Fishes In Bear Lake, Utah-Idaho, J. R. Ruzycki, Wayne A. Wurtsbaugh, Chris Luecke

Watershed Sciences Faculty Publications

Two principal sport fish—the indigenous Bonneville cutthroat trout Oncorhynchus clarki utah and the introduced lake trout Salvelinus namaycush—are the dominant piscivores in Bear Lake, a 282-km^2 oligotrophic system. These piscivores rely predominantly on four endemic prey fish species that make up a major portion of the unique Bear Lake fish assemblage. We estimated the annual biomass of pelagic and benthic prey fish by using hydroacoustic and trawling techniques. We also estimated the lakewide abundance of piscivores with a multiple mark–recapture survey and used a bioenergetics model to compare the population-level consumption of prey fish with prey fish production. Prey fish …

Yield-Per-Recruit Analysis For Black Drum, Pogonias Cromis, Along The East Coast Of The United States And Management Strategies For Chesapeake Bay, Cynthia M. Jones, Brian K. Wells

OES Faculty Publications

Black drum, Pogonias cromis along the U.S. East Coast is subject to commercial and recreational harvest. However, prior to this study no modeling had been undertaken to examine the potential for overfishing in the Chesapeake Bay region. We present evidence from yield-per-recruit models that growth overfishing of black drum is unlikely under current fishing practices in this region. Particular attention was given to fishing practices in the Chesapeake Bay region where old, large fish predominate in the commercial and recreational catches (mean age=26 years: mean total length=108.4 cm; mean weight 22.1 kg). Yield-per-recruit model results showed that growth overfishing was …

Growth Rate Variability And Lipofuscin Accumulation Rates In The Blue Crab Callinectes Sapidus, Se-Jong Ju, David H. Secor, H. Rodger Harvey

OES Faculty Publications

To better understand growth and age-pigment (lipofuscin) accumulation rates of the blue crab Callinectes sapidus under natural conditions, juveniles (33 to 94 mm carapace width) were reared in outdoor ponds for over 1 yr. Growth rates, measured by carapace width, during summer and fall exceeded all those reported in the literature; the initial carapace width of 59 ± 14 mm (mean ± SD) increased to 164 ± 15 mm within a 3 mo period. No growth occurred during winter months (November to April) at low water temperatures. Growth rates of crabs in ponds were substantially higher (von Bertalanffy growth parameter …

Fisheries Occasional Publication No. 31 - Feeding Lupins To Fish: A Review Of The Nutritional And Biological Value Of Lupins In Aquaculture Feeds, Brett Glencross

Fisheries Occasional Publications

Lupins are the harvested seed of species from the Lupinus genus, a group within the leguminous bean and pea family Fabaceae. Legumes are particularly valuable agricultural crops because of their capacity to provide a grain crop and also fix and return nitrogen to soils and improve the soil value for further cropping. The oilseeds, soybeans and peanuts are also leguminous plants, though traditionally they have been cropped for their oil value, whereas lupins, are cropped for both their protein and nitrogen fixing value (Gladstones, 1998; Perry et al., 1998).

The three key commercial species of lupins are L. angustifolius (Narrow-leafed …