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Articles 3091 - 3120 of 4309
Full-Text Articles in Aquaculture and Fisheries
Aquaculture Plan For The Houtman Abrolhos Islands, Fisheries Western Australia
Aquaculture Plan For The Houtman Abrolhos Islands, Fisheries Western Australia
Fisheries Management Papers
The objective of this aquaculture plan is to : Provide a sound basis for developing a new aquaculture industry in the Abrolhos Islands, while at the same time conserving the unique environment of the islands for present and future generations, and minimising conflict between aquaculture and existing and future users of the islands.
Comparison Of Larval Myomere Counts Among Species Of Nocomis In Virginia (Actinopterygii: Cyprinidae), Terre D. Green, Eugene G. Maurakis
Comparison Of Larval Myomere Counts Among Species Of Nocomis In Virginia (Actinopterygii: Cyprinidae), Terre D. Green, Eugene G. Maurakis
Virginia Journal of Science
Larval myomere counts of Nocomis platyrhynchus were made using a dissecting light microscope equipped with polarizing filters, and then compared to those of the three other species of Nocomis (Nocomis leptocephalus, Nocomis micropogon, and Nocomis raneyi) found in Virginia. Average preanal myomere counts for N. platyrhynchus (26.9) were significantly different from those of the other three species (N. raneyi =28.7; N. micropogon =26.0; and N. leptocephalus =25.9). This is especially important as larvae of N. leptocephalus, the only other species of Nocomis syntopic with N. platyrhynchus in the upper New River drainage, can now …
Feeding Habits Of Young-Of-Year Striped Bass, Morone Saxatilis, And White Perch, Morone Americana, In Lower James River, Va, Paul J. Rudershausen, Joseph G. Loesch
Feeding Habits Of Young-Of-Year Striped Bass, Morone Saxatilis, And White Perch, Morone Americana, In Lower James River, Va, Paul J. Rudershausen, Joseph G. Loesch
Virginia Journal of Science
A total of 188 young-of-year (YOY) striped bass, Morone saxatilis, and 199 YOY white perch, Morone americana, were collected by pushnet, seine and trawl during 24-hour periods from June through August, 1992 in lower James River, Virginia. The purpose was to identify prey and temporal and spatial feeding habits. Copepods were the most numerous prey of both species. Fishes and mysids comprised the largest volumetric percentage of diets of striped bass and white perch, respectively. Using an index of relative importance, leptodorids and copepods were the most important prey of striped bass and white perch, respectively. Both species …
A Longitudinal Assessment Of Temperament In Octopus Bimaculoides, David Loyd Sinn
A Longitudinal Assessment Of Temperament In Octopus Bimaculoides, David Loyd Sinn
Dissertations and Theses
Cephalopods, including Octopus spp., are highly intelligent molluscs that play major roles in many marine food webs, both as top-level feeders (Ambrose, 1984) as well as by constituting a major source of protein for the animals above them (Lang, Hochberg, Ambrose, & Engle, 1997). They also are fascinating organisms for behavioral studies, with elaborate repertoires of behavior based on plasticity and learning (Wells, 1962a; 1962b; 1978) which in complexity rivals that of the vertebrates. The study of individual differences in behavior is a facet of behavioral research that has recently gained attention in the literature (Gosling & John, 1999). Traditionally, …
Management Directions For Western Australia's Coastal Commercial Finfish Fisheries, Fisheries Western Australia
Management Directions For Western Australia's Coastal Commercial Finfish Fisheries, Fisheries Western Australia
Fisheries Management Papers
This discussion paper presents the framework in the light of commercial fisheries, in particular the open acess coastal finfish fishery. It provides the background to commercial fisheries management in Western Australia; describes the current situation; and sets the scen for a new management framework, with some important proposals on specific management issues.
Protecting And Sharing Western Australia's Coastal Fish Resources. The Path To Integrated Management., Fisheries Western Australia
Protecting And Sharing Western Australia's Coastal Fish Resources. The Path To Integrated Management., Fisheries Western Australia
Fisheries Management Papers
The fisheries management framework of the 21st Century must not only be able to manage the level of exploitation by commercial and recreational fisheries, but also provide an agreed basis and process for changes in the way fish and aquatic resources are used and shared by this community. There is a clear need to counter inevitable pressure on stocks from the impact of a growing population, increasing coastal development and the demands of various key user groups. Unless we are proactive in dealing with the growing exploitation of fisheries along our State’s vast 12,000km coastline, it will be difficult to …
Desarrollo De Tecnologias De Acuacultura Semi-Intensiva En Honduras: Resumen De Las Investigaciones En Acuacultura De Agua Dulce Realizadas Por El Programa Colaborativo De Apoyo A La Investigacion En Acuacultura/Dinamica De Estanques (Pd/A Crsp) De 1983 A 1992, Bartholomew Green, David Teichert-Coddington, Terrill Hanson
Desarrollo De Tecnologias De Acuacultura Semi-Intensiva En Honduras: Resumen De Las Investigaciones En Acuacultura De Agua Dulce Realizadas Por El Programa Colaborativo De Apoyo A La Investigacion En Acuacultura/Dinamica De Estanques (Pd/A Crsp) De 1983 A 1992, Bartholomew Green, David Teichert-Coddington, Terrill Hanson
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
La investigacion en acuacultura en Honduras se ha desarrollado desde 1983 en una manera colaborativa por medio del Centro Internacional de Acuacultura y Medio Ambientes Acuaticos, Universidad de Auburn, y la Direccion General de Pesca y Acuacultura, Secretaria de Agricultura y Ganaderia, Republica de Honduras. Estas investigaciones de llevaron a cabo en el Centro Nacional de Investigacion Piscicola El Carao, Comayagua, Honduras, bajo el auspicio del Programa Colaborativo de Investigaion en Acuacultura/Dinamica de Estanques (PD/A CRSP), el cual esta financiado por USAID. La meta principal de PD/A CRSP es incremntar la produccion de tilapia por medio de la optimizacion de …
Determining The Phylogenetic Relationships Among The Northern Pike (Esox Lucius), The Muskellunge (Esox Masquinongy), And The Silver Pike, Steven W. Foster
Determining The Phylogenetic Relationships Among The Northern Pike (Esox Lucius), The Muskellunge (Esox Masquinongy), And The Silver Pike, Steven W. Foster
Theses, Dissertations and Capstones
Prioritization of taxa has become a necessity due to limited resources available for conservation. Conservation efforts are often concentrated on those threatened and endangered species with the highest taxonomic importance. The silver pike is a rare game fish, often accounting for less than 1% of a total pike population where it is found. Although silver pike are normally found in association with northern pike, they have distinct morphological characteristics and have not been shown to hybridize with the northern pike. Still, many fisheries biologists consider the silver pike to be a color variant of the northern pike, and to date …
Intraintestinal Sites Of Infection For The Trematode Species Plagitura Salamandra Holl 1928 And Plagitura Parva Stunkard 1933 In Red-Spotted Newts Notopthalmus V. Viridescens (Rafinesque), Jeremy T. Clay
Theses, Dissertations and Capstones
The red-spotted newt, Notopthalmus v. viridescens (Rafinesque) is a common salamander in the eastern United States. Studies on the parasites are available, however these studies examined total parasite fauna. This study examines two species, Plagitura salamandra Holl 1928 and Plagitura parva Stunkard 1933 found in the small intestine of the red-spotted newt. A total of 225 newts was collected and examined for the two Plagitura species. No difference was found in prevalence of infection, mean intensity, SVL, and weight between male and female newts. Plagitura parva was found in 24.4 % of the newts while P. salamandra was found in …
Reproductive Success Of Piping Plovers On Alkali Lakes In North Dakota And Montana, Robert K. Murphy, Michael J. Rabenberg, Marriah L. Sondreal, Bruce R. Casler, Debra A. Guenther
Reproductive Success Of Piping Plovers On Alkali Lakes In North Dakota And Montana, Robert K. Murphy, Michael J. Rabenberg, Marriah L. Sondreal, Bruce R. Casler, Debra A. Guenther
United States Fish and Wildlife Service: Publications
Low reproductive success is thought to be a chief cause of the steady decline in numbers of piping plover (Charadrius melodus) that nest in the northern Great Plains. Surprisingly, few reproductive success data are published from alkali lakes in the region, where most breeding pairs of piping plover nest. During 1994 to 1997 we measured nest success and fledging rates of piping plovers at 32 alkali lakes across northwestern North Dakota and northeastern Montana, at the center of the species' breeding range in the Great Plains. Annual nest success and fledging rates averaged 38% (Mayfield estimate; 20 to …
Biography: Glenn Lyle Hoffman, Andrew J. Mitchell
Biography: Glenn Lyle Hoffman, Andrew J. Mitchell
United States Fish and Wildlife Service: Publications
Glenn Lyle Hoffman, the son of Ernest J. and Viola M. Hoffman, was born on a small farm in Iowa on December 28, 1918. He is a graduate of Lamont High School in Iowa where he excelled at wrestling. In 1942, he received a B.A. Degree from the University of Iowa, majoring in Zoology. He paid his own way through college by trapping fur animals, washing hospital windows, and working summers at a trout hatchery for the Iowa Department of Natural Resources.
Review Of Parasites Of North American Freshwater Fishes, Second Edition, Wilmer A. Rodgers
Review Of Parasites Of North American Freshwater Fishes, Second Edition, Wilmer A. Rodgers
United States Fish and Wildlife Service: Publications
In this second edition, the author uses the traditional better-known taxonomy, although a table listing the contemporary (or future) classification is presented in the foreword. The beginning of the book covers the public health aspects of fish parasites, and discusses methods of examining and collecting fish, and then preserving and making permanent preparations. These sections will be very helpful to students and researchers, as are the sections that list parasites by location in fish. The next sections present major groups of parasites and detailed genera and species. Drawings and photographs make identification relatively easy. An important addition to this second …
Non-Native Species Interactions: Management Implications To Aid In Recovery Of The Colorado Pikeminnow Ptychocheilus Lucius And Razorback Sucker Xyrauchen Texanus In The San Juan River, Co-Nm-Ut, James E. Brooks, Michael J. Buntjer, Jude R. Smith
Non-Native Species Interactions: Management Implications To Aid In Recovery Of The Colorado Pikeminnow Ptychocheilus Lucius And Razorback Sucker Xyrauchen Texanus In The San Juan River, Co-Nm-Ut, James E. Brooks, Michael J. Buntjer, Jude R. Smith
United States Fish and Wildlife Service: Publications
As part of the San Juan River Basin Recovery Implementation Program (SJRIP), investigations of non-native fishes were conducted during 1991-1997 to characterize interactions with native fishes. The impacts of non-native fish species on natives has often been identified as a key impact, along with habitat alteration, that facilitates loss of native biological diversity. In the San Juan River, the endangered Colorado pikeminnow Ptychocheilus lucius and razorback sucker Xyrauchen texanus, as well as the other members of the native fish community, are the focus of the SJRIP. A major component of native fish recovery efforts in the San Juan River …
Contaminant Residue Analysis Of Fish Tissues From Marais Des Cygnes National Wildlife Refuge - Kansas, John F. Miesner
Contaminant Residue Analysis Of Fish Tissues From Marais Des Cygnes National Wildlife Refuge - Kansas, John F. Miesner
United States Fish and Wildlife Service: Publications
Marais des Cygnes National Wildlife Refuge (Refuge) was added to the National Wildlife Refuge system in 1992. The Refuge occupies approximately 2,550 ha of bottomland hardwoods habitats along the Marais des Cygnes River in Linn County, Kansas.
During public involvement in acquisition planning, the Service committed to opening the Refuge to recreational fishing. There are several water bodies on the Refuge which would provide recreational fishing opportunities. These include abandoned coal strip mines, small man-made farm ponds, and the Marais des Cygnes River and several tributaries to the river. Fish have been established in the coal mine and farm ponds …
Effects To Listed Species From Operations Of The Federal Columbia River Power System
Effects To Listed Species From Operations Of The Federal Columbia River Power System
United States Fish and Wildlife Service: Publications
The U.S. Fish and Wildlife Service (Service) has reviewed the biological assessment (BA) and National Environmental Policy Act (NEPA) documents dated December, 1999 submitted by the Bonneville Power Administration (BPA), Corps of Engineers (Corps), and the Bureau of Reclamation (Bureau) (also referred to as action agencies) regarding operations of the Federal Columbia River Power System (FCRPS). The action agencies’ request for formal consultation was received in December, 1999. This document represents the Service’s biological opinion of the effects of the proposed action on two listed fish species: the endangered Kootenai River white sturgeon (Acipenser transmontanus); and the threatened …
Review Of Parasites Of North American Freshwater Fishes, Second Edition, Gerald W. Esch
Review Of Parasites Of North American Freshwater Fishes, Second Edition, Gerald W. Esch
United States Fish and Wildlife Service: Publications
Thirty-two years ago, Glenn Hoffman published the first version of this book. I remember it well because I was teaching a field parasitology course at the W.K. Kellogg Biological Station of Michigan State University, and depended to a very great extent on various fish parasites to use for examples in class study. As a result, the book was canonical as a source of information, and it continued to serve me well as I moved elsewhere in subsequent years. I know from personal knowledge that others who worked with fish parasites were equally served by the book. My copy of the …
Selenium In A Wyoming Grassland Community Receiving Wastewater From An In Situ Uranium Mine, Pedro Ramirez Jr., Brad Rodgers
Selenium In A Wyoming Grassland Community Receiving Wastewater From An In Situ Uranium Mine, Pedro Ramirez Jr., Brad Rodgers
United States Fish and Wildlife Service: Publications
Water, soil, vegetation, grasshoppers (Family Acrididae), bird eggs and bird livers collected at a 23.5 hectare (58 acres) grassland irrigated with wastewater from an in situ uranium mine (Study Area) and a reference site in 1998 were analyzed for selenium and other trace elements. Bird surveys were conducted at the irrigated grassland at the in situ uranium mine to determine species use, relative abundance and behavior. We observed 23 species of birds using the Study Area. Western meadowlarks (Sturnella neglecta), red-winged blackbirds (Agelaius phoeniceus), lark buntings (Calamospiza melanocorys) and horned larks (Eremophila alpestris …
Fish Health For Fish Farmers - 2nd Edition, Tina Thorne
Fish Health For Fish Farmers - 2nd Edition, Tina Thorne
Fisheries Published Reports
2nd edition.
Disease is a departure from the normal state of health of a fish or any other animal. Diseases have no doubt occurred among fishes since these animals have occupied a place on the earth. Scientific efforts to understand the causes of disease in fishes, and to attempt to control them however, have only been made during the last sixty years.
Fishes, crustaceans and molluscs, as with other animals are subject to a wide spectrum of diseases, that can be classified as infectious or non-infectious. The vast majority of disease problems in the intensive farming of aquatic animals can …
Avian Mortality At Communication Towers: A Review Of Recent Literature, Research, And Methodology, Paul Kerlinger
Avian Mortality At Communication Towers: A Review Of Recent Literature, Research, And Methodology, Paul Kerlinger
United States Fish and Wildlife Service: Publications
A review of the recent literature and research in progress on bird collisions with
communication towers was contracted by the U. S. Fish and Wildlife Service. In the five year period 1995 through 1999, very little research was published or conducted that is relevant to the bird-communication tower collision problem. It seems that since the major reviews of the late 1970s and early 1980s, few researchers and others have been interested in researching the problem. Before 1985, there was an enormous body of literature, mostly anecdotal that has not been examined analytically.
For the current review,, a standard literature search …
Ontogeny, Reproduction, And Population Dynamics Of Stoplephorus Baganensis And Thryssa Kammalensis (Pisces : Engraulididae) In A Malaysian Estuary Sarpedonti, Valerie, Valerie Sarpedonti
Ontogeny, Reproduction, And Population Dynamics Of Stoplephorus Baganensis And Thryssa Kammalensis (Pisces : Engraulididae) In A Malaysian Estuary Sarpedonti, Valerie, Valerie Sarpedonti
Student Works (2000-2009)
Larval ontogeny of Stolephorus baganem:;is and Thryssa kammalensis, comprises three successive phases characterized by: (I) development of swimming appendages, (2) changes in allometric growth of various body parts, and (3) increase in body depth, as well as eye diameter, in the case of S. baganensis. Both anchovy species are multiple spawners, spawning all year round but varying in intensity. Mass spawnings of S bagane11sis start in the first (summer) inter-monsoon period and last for four months. This period is associated with changes in the wind field and increased rainfall, dissolved oxygen and food availability. The presence of mature adults during …
An Examination Of The Impact Of Moon Phase On Catch Rates Of The Western Rock Lobster, Petra Roberts
An Examination Of The Impact Of Moon Phase On Catch Rates Of The Western Rock Lobster, Petra Roberts
Theses : Honours
The western rock lobster is the most valuable single-species fishery in Australia returning a commercial value of around $250 million annually. This fishery is considered fully exploited and requires careful management to ensure a viable and sustainable fishery. Scientists at Marine Research Laboratory, Western Australia have already built detailed computer models of the lobster fishery and further research is required to continuously update and refine these models to provide an accurate picture of the fishery. One area of interest that could improve this model is the impact of the moon phase, if any, on the daily catch rates of the …
State Of The Fisheries Report 1999/2000, J. W. Penn, Fisheries Western Australia
State Of The Fisheries Report 1999/2000, J. W. Penn, Fisheries Western Australia
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 agency's non-financial performance measures.
By summarising management changes, compliance activities and research data such as landings, effort, catch rates, stock assessment and breeding stock levels, this document provides a valuable reference point for Western Australian fisheries of major importance to the commercial, recreational and aquaculture sectors. Information relevant to Fisheries WA's Fish and Fish Habitat Protection Program is also provided.
The report indicates that overall the major fish stocks which support …
Terrestrial Natural Communities Of Nebraska - Version Ii, Gerry Steinauer, Steven B. Rolfsmeier
Terrestrial Natural Communities Of Nebraska - Version Ii, Gerry Steinauer, Steven B. Rolfsmeier
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
For more than a decade, The Nature Conservancy (TNC) and state natural heritage programs, including the Nebraska Natural Heritage Program (NNHP), have used a “coarse filter/fine filter” approach to preserving biological diversity (The Nature Conservancy, 1994). This approach involves identification and protection of natural communities (coarse filter) as well as rare species (fine filter). Identifying and protecting representative examples of natural communities ensures conservation of most species, biotic interactions and ecological processes. Those species that “fall through” the community filters are generally the rare species. Identification and protection of viable occurrences of rare species serves as the fine filter for …
Conservation In A Highly Fragmented Landscape: The Central Tallgrass Prairie Ecoregional Conservation Plan, The Central Tallgrass Prairie Ecoregion Planning Team
Conservation In A Highly Fragmented Landscape: The Central Tallgrass Prairie Ecoregional Conservation Plan, The Central Tallgrass Prairie Ecoregion Planning Team
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
With the adoption of Conservation by Design in 1995, The Nature Conservancy recognized the importance of working at larger scales to achieve our mission which is: the long-term survival of all viable native species and community types through the design and conservation of portfolios of sites within ecoregions. The Conservancy set forth to design conservation plans on an ecoregional basis by working closely with various conservation partners. These plans are intended to provide a framework within which the Conservancy and our partners, such as the Natural Heritage Programs, can make decisions regarding conservation actions to be taken at the …
Briefing Book Nebraska
United States Fish and Wildlife Service: Publications
Table of Contents
U.S. Fish and Wildlife Service Presence in Nebraska
Boyer Chute National Wildlife Refuge
Crescent Lake / North Platte National Wildlife Refuge Complex
Fort Niobrara / Valentine /John and Louise Seier National Wildlife Refuge Complex
Rainwater Basin Wetland Management District and Sandhills Habitat Office
Partners for Fish and Wildlife (PFFW)
Ecological Services (ES) Field Office
Law Enforcement
North American Waterfowl Management Plan
Nebraska Federal Aid-- Sport Fish and Wildlife Restoration
Migratory Bird Conservation
Cassin’S Sparrow (Aimophila Cassinii) Status Assessment And Conservation Plan, Janet M. Ruth
Cassin’S Sparrow (Aimophila Cassinii) Status Assessment And Conservation Plan, Janet M. Ruth
United States Fish and Wildlife Service: Publications
Cassin’s Sparrow (Aimophila cassinii) is a grassland species endemic to the southwestern U.S. and northern Mexico. Its behavior and ecology have been shaped by these arid ecosystems and the health of its populations is dependent on the availability of grasslands that contain a shrub component. Populations of many grassland birds have experienced dramatic declines due to the loss and deterioration of grassland habitats, and there has been concern about the trends in Cassin’s Sparrow populations. Without better information about population trends, ecology, and effects of management activities, and without a stronger emphasis on grassland management, Cassin’s Sparrows and other grassland …
Fish Tales: More Trout To Catch In Utach Thanks To Federal-State Cooperation, John Seals, Tim Miles
Fish Tales: More Trout To Catch In Utach Thanks To Federal-State Cooperation, John Seals, Tim Miles
United States Fish and Wildlife Service: Publications
As reciprocity to Utah Department of Wildlife Resources (DWR) for its help last year feeding and hauling young fish, the Jones Hole National Fish Hatchery is providing more fish for Utah waters, which means more trout dinners for recreational anglers.
The DWR is currently busy hauling about 260,000 rainbow trout fingerlings – roughly 8600 pounds of fish – from Jones Hole to lakes throughout the state, including Steinaker Reservoir near Vernal, and Mantua and East Canyon Reservoirs near Ogden. About half of the fish are going into Scofield Reservoir in Carbon County, adding to 270,000 Jones Hole trout that were …
Canada Lynx Conservation Assessment And Strategy, Bill Ruediger, Jim Claar, Steve Mighton, Bob Naney, Tony Rinaldi, Fred Wahl, Nancy Warren, Dick Wenger, Al Williamson, Lyle Lewis, Bryon Holt, Gary Patton, Joel Trick, Anne Vandehey, Steve Gniadek
Canada Lynx Conservation Assessment And Strategy, Bill Ruediger, Jim Claar, Steve Mighton, Bob Naney, Tony Rinaldi, Fred Wahl, Nancy Warren, Dick Wenger, Al Williamson, Lyle Lewis, Bryon Holt, Gary Patton, Joel Trick, Anne Vandehey, Steve Gniadek
United States Fish and Wildlife Service: Publications
The Lynx Conservation Assessment and Strategy was developed to provide a consistent and effective approach to conserve Canada lynx on federal lands in the conterminous United States. The United States Department of Agriculture Forest Service, United States Department of the Interior Bureau of Land Management, and United States Department of the Interior Fish and Wildlife Service initiated the Lynx Conservation Strategy Action Plan in spring of 1998.
The lynx has been proposed for listing as a threatened species under the Endangered Species Act (Federal Register, Volume 63, No. 130, July 8, 1998). In the proposed rule, the U.S. Fish and …
Evaluation Of Fish Scale Chemistry For Determining Habitat Associations, Brian Kenneth Wells
Evaluation Of Fish Scale Chemistry For Determining Habitat Associations, Brian Kenneth Wells
Biological Sciences Theses & Dissertations
This is the first work examining the utility of scale chemistry for determining natal origins and habitat associations. I quantified a relationship of scale chemistry to water chemistry, quantified geographic variation in scale chemistry, and evaluated stability of scale chemistry through maturation. Scale chemistry accurately reflected trace element composition of the water in which fish had lived. Juvenile spot (Leiostomus xanthurus) were held in four concentrations of Sr, Cd, and Ba maintained at either 20°C or 25°C, for 42 days. Strontium:Ca, Cd:Ca, and Ba:Ca levels in scales were linearly related to environmental concentrations while temperature had no effect. …
Management Of A Bioeroding Sponge On The Pearl Oyster, Pinctada Maxima, Luisa Rawlinson
Management Of A Bioeroding Sponge On The Pearl Oyster, Pinctada Maxima, Luisa Rawlinson
Theses : Honours
This thesis examines environmentally and economically viable ways to manage a sponge that is bioeroding the pearl oyster, Pinctada maxima, in pearl oyster farms throughout north-western Australia. The sponge is causing a massive loss in revenue to the pearling industry as a result of damage to the half-shell, the pearl and, often, death of the oyster. The information arising from this study is important for pearl producers and the Australian pearling industry, to ensure that the best quality P. maxima can be grown in a way that will not have adverse effects on the pristine environment in which these …