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- Research and Technical Reports (17)
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Articles 1 - 30 of 52
Full-Text Articles in Life Sciences
Management Plan Kimberley Prawn Fishery., G. Stewart
Management Plan Kimberley Prawn Fishery., G. Stewart
Fisheries management papers
The report outlines a management plan for the Kimberley Prawn Fishery which operates in Western Australia coastal waters of the Indian Ocean and Timor Sea off the Kimberley coastline lying east of Koolan Island, 123 degrees 45' east longitude and the west of Cape Londonderry, 126 degrees 58' east longitude. This management plan proposes a set of options to be offered to the Northern Prawn Fishery Class B and Class C unit holders, with Western Australian Fishing Boat Licences, who are displaced by the compulsory reduction of the Northern Prawn Fishery fleet and to owners of trawlers with access to …
Stock - Recruitment Relationship Of Spot (Leiostomus Xanthurus) From The Chesapeake Bay, Deborah A. Bodolus
Stock - Recruitment Relationship Of Spot (Leiostomus Xanthurus) From The Chesapeake Bay, Deborah A. Bodolus
Reports
No abstract provided.
Preliminary Assessment Of The Economic Impacts Of Various Catch And Effort Restrictions On The Uniteµ States Sea Scallop, Placopecten Magellanicus, Fishery, James E. Kirkley, William D. Dupaul
Preliminary Assessment Of The Economic Impacts Of Various Catch And Effort Restrictions On The Uniteµ States Sea Scallop, Placopecten Magellanicus, Fishery, James E. Kirkley, William D. Dupaul
Reports
No abstract provided.
Genetic Variation In The Timing Of Gonadal Maturation And Spawning Of The Eastern Oyster, Crassostrea Virginica (Gmelin), Bruce J. Barber, Susan E. Ford, Robert N. Wargo
Genetic Variation In The Timing Of Gonadal Maturation And Spawning Of The Eastern Oyster, Crassostrea Virginica (Gmelin), Bruce J. Barber, Susan E. Ford, Robert N. Wargo
VIMS Articles
The gonadal cycles of four groups of eastern oysters, Crassostrea virginica (Gmelin), including native stocks collected that year and inbred strains (reared in Delaware Bay for 5-6 generations) from both Long Island Sound and Delaware Bay, were compared in Delaware Bay in 1987. Inbred strains resembled their respective native stocks; both Long Island groups initiated gonadal development and spawning about one month earlier and spawned over a shorter duration than both Delaware Bay groups. Analysis of covariance revealed that the effect of time on gonadal development was statistically different (P I 0.05) for all between-location group comparisons, but not for …
Mycobacterium Marinum, The "Leisure-Time Pathogen", Howard Kator, Martha Rhodes
Mycobacterium Marinum, The "Leisure-Time Pathogen", Howard Kator, Martha Rhodes
Reports
No abstract provided.
A Study Into The Feasibility Of Establishing A System For The Buy-Back Of Salmon Fishing Authorisations And Related Endorsements., P. J. Monaghan
A Study Into The Feasibility Of Establishing A System For The Buy-Back Of Salmon Fishing Authorisations And Related Endorsements., P. J. Monaghan
Fisheries management papers
A buy-back system for the buy-back of under performing salmon authorisations is suggested as the most cost effective method of reducing the number of salmon fishing units. It could be of benefit to commercial salmon fishermen and could be achieved at relatively modest cost. The alternative of implementing a buy-back system of interest to all salmon authorisation holders could be extraordinary expensive as salmon fishermen place a high value on lifestyle.
Biodepuration Of Polynuclear Aromatic Hydrocarbons From A Bivalve Mollusk, Mercenaria Mercenaria L, John T. Tanacredi Ph.D., Raul R. Cardenas
Biodepuration Of Polynuclear Aromatic Hydrocarbons From A Bivalve Mollusk, Mercenaria Mercenaria L, John T. Tanacredi Ph.D., Raul R. Cardenas
Faculty Works: CERCOM
Mercenaria mercenaria, exposed in vitro for 48 h to nine parent polynuclear aromatic hydrocarbons (PAHs) found in waste crankcase oil (WCCO) and analysed by multiparametric analysis over a 45- day depuration period in an activated carbon filtration aquaria system, did not depurate PAHs, but rather maintained them at detectable levels. Uptake of PAHs was shown to be directly related to clam weight. A cluster analysis of empirical results reaffirmed a biostabilization in PAH groupings in clam tissue over a 45-day depuration period and exhibited no evidence of a decreasing trend in total PAHs when subjected to ANOVA. Due to the …
A Discussion Of Options For Effort Reduction., Southern Demersal Gillnet And Demersal Longline Fishery Management Advisory Committe
A Discussion Of Options For Effort Reduction., Southern Demersal Gillnet And Demersal Longline Fishery Management Advisory Committe
Fisheries management papers
The committee prefers to reduce effort in the fishery by improving the effectiveness of the 50 per cent reduction on transfer rule. To do this it is necessary to prevent the use of lease arrangements which act as a form of transfer.Some consideration could also be given to encouraging transfer of licences by protecting purchased units against further effort reductions. The Minister for Fisheries has determined that ownership statement must be completed prior to licence renewal each year. It is hoped that this will prevent licence holders from using lease arrangements to effect transfers and so avoid the loss of …
Moisture / Protein Levels In Sea Scallops, Virginia Sea Grant Marine Advisory Program
Moisture / Protein Levels In Sea Scallops, Virginia Sea Grant Marine Advisory Program
Reports
No abstract provided.
Scallops Guidelines To Improve Quality: The Use Of Insulated Tates At Sea, Virginia Sea Grant Marine Advisory Program
Scallops Guidelines To Improve Quality: The Use Of Insulated Tates At Sea, Virginia Sea Grant Marine Advisory Program
Reports
No abstract provided.
A Survey For Oysters And Shell In The Vicinity Of The Proposed Bridge Construction At The Site Of The Hampton Boulevard Bridge (Rte. 337) Over The Lafayette River In Norfolk, Va., Reinaldo Morales-Alamo, Roger L. Mann
A Survey For Oysters And Shell In The Vicinity Of The Proposed Bridge Construction At The Site Of The Hampton Boulevard Bridge (Rte. 337) Over The Lafayette River In Norfolk, Va., Reinaldo Morales-Alamo, Roger L. Mann
Reports
At the request of the Virginia Department of Transportation (VDOT), the Virginia Institute of Marine Science (VIMS) conducted a survey of certain parcels of oyster grounds in the Lafayette River in the immediate vicinity of a proposed construction site for a new bridge across the river on Hampton Blvd., east of the present bridge, in Norfolk, Va.
Estimation Of Relative Abundance Of Recreationally Important Finfish In The Virginia Portion Of Chesapeake Bay: Annual Progress Report 1990-1991, James A. Colvocoresses, Patrick J. Geer
Estimation Of Relative Abundance Of Recreationally Important Finfish In The Virginia Portion Of Chesapeake Bay: Annual Progress Report 1990-1991, James A. Colvocoresses, Patrick J. Geer
Reports
A recent analysis of the Virginia portion of the National Marine Fisheries Service Marine Recreational Fisheries Statistics Survey (VMRC 1985) showed that Virginia marine recreational catches were dominated by six species (spot, croaker, weakfish, black sea bass, summer flounder, and bluefish) which constituted over 85% of the total estimated catch by both numbers caught and weight landed. All of these species except bluefish heavily utilize the lower Chesapeake Bay as a nursery area for early juveniles which are highly vulnerable to bottom trawls.
Establishment Of A Registry To Record Charges Against Fishing Licences When Used As Security For Loans., P. Rogers
Fisheries management papers
This report outlines the Committee's final advice to the Minister for Fisheries on the need for a public commercial fishing licence register which has a mechanism for the recording of financial security interest in fishing licences. The Committee was greatly assisted by legislation introduced within the Victorian State Parliament during 1989, which by amendment to the Fisheries Act, provides for the registration of prescribed financial interests in fishing licences (See Appendix 1).
The Future For Recreational Fishing Final Report Of The Recreational Fishing Advisory Committee, Recreational Fishing Advisory Committee
The Future For Recreational Fishing Final Report Of The Recreational Fishing Advisory Committee, Recreational Fishing Advisory Committee
Fisheries management papers
This report discusses: What Recreational fishing means to Western Australia's estimated 300,000 fishers. Conservation and equality in catch sharing was at the heart of the Committee's investigations into developing strategies for the future management of important recreational fish stocks.
Appendix To The Final Report Of The Rfac. Statistical Summary Of Public Responses To Key Issues., Recreational Fishing Advisory Committee Western Australia.
Appendix To The Final Report Of The Rfac. Statistical Summary Of Public Responses To Key Issues., Recreational Fishing Advisory Committee Western Australia.
Fisheries management papers
This paper has been published as a separate appendix to the final report of the Recreational Fishing Advisory Committee, and should be read in conjunction with it, and the Committee's discussion paper ("Final report of the Recreational Fishing Advisory Committee - Fisheries Management Paper No. 41 1991). The key issues that were identified in the discussion paper came up under the following headings: 5.1 Environment 5.2 Resource Sharing 5.3 Access for Fishing 5.4 Research 5.5 Management rules 5.6 Enforcement 5.7 Charter fishing 5.8 Funding and licensing 5.9 Community consultation 5.10 Public awareness and community education.
The Future For Recreational Fishing Forum Proceedings Saturday, 20 October 1990., Recreational Fishing Advisory Committee
The Future For Recreational Fishing Forum Proceedings Saturday, 20 October 1990., Recreational Fishing Advisory Committee
Fisheries management papers
Australia's first recreational fishing forum was held at the West Australian Cricket Association Ground, in Perth WA on Saturday, 20 October 1990. It was clearly recognised by government, fishers and fisheries managers alike that the 1990's was the decade of decision for recreational fishing in WA. At the end of the day, the 12 speakers had covered an impressive range of topics, from the principles of resource sharing to community education and the question of funding the management of recreational fishing.
Evaluation Of Spatial/Temporal Sources Of Variation In Nekton Catch And The Efficacy Of Stratified Sampling In The Chesapeake Bay : Final Report For Cbsac V To Chesapeake Bay Stock Assessment Committee And The National Marine Fisheries Service, Noaa, Mark E. Chittenden
Reports
Collections were made January through December 1988 using a 30 1 semiballoon trawl at 48 stations randomly selected each month, using equal allocation, from twelve geographical strata superimposed on a sampling frame of 16,730 possible stations uniformly distributed throughout water~ 12 feet deep in the Virginia mainstem Chesapeake Bay. The twelve geographical strata superimposed on the spatial sampling frame divided it into longitudinally-equal Upper, Middle and Lower Regions, each subdivided into four cross-bay regions, an Eastern Shore Littoral (12-30'), a Western Shore Littoral (12-30'), a Central Plain (30- 42'), and Deeps(> 42 1 ) .
Spawning And Recruitment Of Black Drum, Pogonias Cromis, In The Lower Chesapeake Bay, John E. Olney, Louis B. Daniel
Spawning And Recruitment Of Black Drum, Pogonias Cromis, In The Lower Chesapeake Bay, John E. Olney, Louis B. Daniel
Reports
No abstract provided.
Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1990, Christopher F. Bonzek, Patrick J. Geer, James A. Colvocoresses, Robert E. Harris Jr.
Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1990, Christopher F. Bonzek, Patrick J. Geer, James A. Colvocoresses, Robert E. Harris Jr.
Reports
This report summarizes data collected by the Virginia Institute of Marine Science (VIMS) monthly trawl survey cruises for January through December, 1990. The trawl survey is a long term, broad scope monitoring program. Its primary goal is to produce annual indices of juvenile (young-of-year) abundance of commercially, recreationally and ecologically important marine and estuarine finfish and crustaceans. The objective is to provide indices of sufficient accuracy and precision for· both immediate resource !fianagement needs and long-term understanding of environmental influences on fishery resources. A second important product of this effort is the documentation and monitoring of habitat utilization by juveniles …
Tag And Release Programs Available To Fishermen, Jon Lucy
Tag And Release Programs Available To Fishermen, Jon Lucy
Reports
No abstract provided.
Oyster Spatfall In Virginia Waters: 1990 Annual Summary, Bruce J. Barber
Oyster Spatfall In Virginia Waters: 1990 Annual Summary, Bruce J. Barber
Reports
The Virginia Institute of Marine Science (VIMS) conducts surveys ofoyster spatfall (or "setting") in Virginia waters throughout the summer reproductive period. This survey provides an estimate of the potential of a particular area for receiving a "strike" or set of oysters on the bottom and helps define the timing of setting events. Information obtained from this effort is valuable to the Virginia Marine Resources Commission (VMRC) for its shell repletion program, and to private oyster growers, both of which are interested in maximizing the timing of shell planting. In addition, by maintaining a long-term data base, trends in spatfall throughout …
Status Of The Major Oyster Diseases In Virginia 1990 A Summary Of The Annual Monitoring Program, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1990 A Summary Of The Annual Monitoring Program, Eugene M. Burreson
Reports
No abstract provided.
The Economic Impact Of Recreational Fishing In Western Australia., R. K. Linchner
The Economic Impact Of Recreational Fishing In Western Australia., R. K. Linchner
Fisheries management papers
The Minister for Fisheries commissioned Economic Research Associates to carry out a study of the economic impact of recreational fishing in Western Australia. Two surveys were conducted to determine how much recreational fishers spend during the year on goods and services in order to go fishing. One involved telephone interviews of 401 recreational fishers, who were selected from a stratified random sample of households in five major regions of the state. The other survey employed a self enumeration questionnaire sent to randomly selected licensed recreational fishers, as well as being made available on non-random self-selection basis through fishing clubs and …
Predation Risk And The Importance Of Cover For Juvenile Rainbow Trout In Lentic Systems, R. A. Tabor, Wayne A. Wurtsbaugh
Predation Risk And The Importance Of Cover For Juvenile Rainbow Trout In Lentic Systems, R. A. Tabor, Wayne A. Wurtsbaugh
Watershed Sciences Faculty Publications
Juvenile rainbow trout Oncorhynchus mykiss stocked in midelevation reservoirs in Utah inhabit shallow nearshore areas and are vulnerable to predation from piscivorous fish and birds. We determined the use and importance of nearshore habitats by (1) measuring habitat selection by, prey availability to, and feeding of juvenile rainbow trout in two reservoirs with populations of predators, and (2) measuring survival and growth rates in the presence and absence of cover in a pond experiment where adult brown trout Salmo trutta were predators. In the reservoirs juvenile rainbow trout (60–120 mm standard length) were abundant in complex inshore habitats but avoided …
Trace Elements In Existing Wetlands And Proposed Mitigation Sites In The U.S. Bureau Of Reclamation's Shoshone Rehbilitation & Betterment Project, Park And Bighorn Counties, Wyoming, Pedro Ramirez Jr., Joni Armstrong
Trace Elements In Existing Wetlands And Proposed Mitigation Sites In The U.S. Bureau Of Reclamation's Shoshone Rehbilitation & Betterment Project, Park And Bighorn Counties, Wyoming, Pedro Ramirez Jr., Joni Armstrong
United States Fish and Wildlife: Staff Publications
The U.S. Fish and Wildlife Service (Service) conducted a baseline inventory of trace elements at proposed mitigation sites and existing wetlands within the Shoshone Project for the Great Plains Region of the U.S. Bureau of Reclamation. Mitigation proposed for wetland losses attributed to the Shoshone Rehabilitation and Betterment Project consists of wetland creation or enhancement within the project area. The quality of irrigation drainage and its effects on fish and wildlife are potential concerns with the existing project. The two sediment samples collected from a large alkali flat near Deaver Reservoir had elevated selenium concentrations (12 and 13 ug/g dry …
Increasing Angler Participation In Marine Catch/Tag-And-Release Fishing Programs: Workshop Summary, Program Outlines, And Angler Survey Results, Jon Lucy, Et Al
Increasing Angler Participation In Marine Catch/Tag-And-Release Fishing Programs: Workshop Summary, Program Outlines, And Angler Survey Results, Jon Lucy, Et Al
Reports
The three-part objective of this Sea Grant/National Marine Fisheries Service project was: (1) to examine anglers' experiences with tag-and release fishing programs; (2) to determine significant impediments, if any, to expanded participation in such programs as well as catch-and release fishing in general; and (3) to address anglers' concerns and questions about catch/tag-and-release fishing by developing educational material to promote greater participation in these activities and minimize fish mortalities due to improper tagging or release techniques.
Metals And Organic Compounds In Missouri River Fish In 1988 Boyd County, Nebraska To Kansas City, Missouri, George T. Allen, R. Mark Wilson
Metals And Organic Compounds In Missouri River Fish In 1988 Boyd County, Nebraska To Kansas City, Missouri, George T. Allen, R. Mark Wilson
United States Fish and Wildlife: Staff Publications
We conducted this project to assess the concentrations of natural and anthropogenic contaminants in fish of the Missouri River from the Nebraska/South Dakota border to Kansas City, Missouri. We collected 45 composite samples of eight fish species from nine locations on the river. We were unable to collect all species at all locations, but the collections allowed us to compare concentrations within trophic levels and at different locations. Comparisons in this project are based on concentrations in composites of fish that may have been of different ages. Also, the comparisons of different species should be treated with caution because' different …
Reproduction, Age And Growth, And Movements Of The Gulf Butterfish Peprilus-Burti, Michael D. Murphy, Mark E. Chittenden
Reproduction, Age And Growth, And Movements Of The Gulf Butterfish Peprilus-Burti, Michael D. Murphy, Mark E. Chittenden
VIMS Articles
Collections were made for gulf butterfish Peprilus burti along a cross-shelf transect at depths of 5-100 m in the Gulf of Mexico off Texas from October 1977 to July 1980. Butterfish mature at 100-160 mm fork length as they approach age I. Spawning occurs primarily from September through May, but length frequencies indicate it concentrates, or is most successful, in distinct "Winter" (late January-mid-May) and "Fall" (early September-late October) periods that coincide with downcoast, alongshore currents (toward Mexico). Gonad data and persistence of small fish indicate spawning in winter, but at a low level. Spawning probably occurs offshore and upcoast …
Effect Of Neutral Red Stain On Settlement Ability Of Oyster Pediveligers, Crassostrea Virginica, Patrick Baker
Effect Of Neutral Red Stain On Settlement Ability Of Oyster Pediveligers, Crassostrea Virginica, Patrick Baker
VIMS Articles
The effect of neutral red stain on the settlement of oyster Crassostrea virginica (Gmelin) pediveligers was examined. Larvae were offered two types of substrate: oyster shell and acetate sheets. Settlement was measured as the proportion of pediveligers settled after 24 hours and analyzed with two-factor ANOV A. Staining did not significantly affect settlement, although settlement onto acetate was much lower than onto oyster shell.
Diseases Of Mahi Mahi Or Common Dolphin Fish, Coryphaena Hippurus In Australia, Jeremy S. Langdon
Diseases Of Mahi Mahi Or Common Dolphin Fish, Coryphaena Hippurus In Australia, Jeremy S. Langdon
Fisheries research bulletins
The diseases encountered in mahi mahi, Coryphaena hippurus, in a land-based hatchery, grow-out sea-cages, and from wild populations between 1987 and 1990 were predominately due to protozoan and metazoan parasites. "Milky flesh", or flesh liquefaction post-mortem, due to Kudoa thyrsites, Trichodina gill infections, and eye lesions induced by Benedenia were the most serious infectious diseases of cultured fish. Bacterial diseases were limited to secondary opportunistic infections and fin "rot", and no fungal or viral conditions were detected. Non-infectious diseases included vitamin E deficiency in fry, lateral canal erosions, and miscellaneous dietary and therapeutic toxicities.