Life Sciences Commons^™

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 …

Hepatic Microsomal N-Hydroxylation Of Aniline And 4-Chloroaniline By Rainbow Trout (Onchorhyncus Mykiss), Steven P. Bradbury, J. M. Dady, A. D. Hoffman, M. M. Voit, D. L. Olson

Steven P. Bradbury

N-Hydroxylation of aniline and 4-chloroaniline was quantified in rainbow trout microsomal preparations using h.p.l.c.-liquid scintillation methods. Radioactive phenylhydroxylamine and 4-chlorophenylhydroxylamine metabolites were identified by co-elution with non-labelled standards. The method provided resolution of metabolite standards, and quantification of both N-hydroxylated metabolites was achieved without derivatization. The maximum velocities at 25 degrees C were 33.8 +/- 1.40 and 22.0 +/- 0.98 pmol/min per mg for aniline and 4-chloroaniline N-hydroxylation, respectively. The Km values were 1.0 +/- 0.11 and 0.8 +/- 0.11 mM for aniline and 4-chloroaniline N-hydroxylation, respectively. These activities were not induced by treatment of the trout with Aroclor 1254 …

Stock - Recruitment Relationship Of Spot (Leiostomus Xanthurus) From The Chesapeake Bay, Deborah A. Bodolus

Reports

No abstract provided.

Marine Resource Bulletin Vol. 23, No. 3 & 4, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

Contents

The Great Migration

Sharks

Rays

A Solution to a Costly Problem: A Ray Fishery

1990 VIMS Trawl Survey

Juvenile Stock Assessment

Anadromy, CatadromyVariations on a Curious Theme

Research in the Name of Caretta caretta

Endangered: Sea Turtles

Thunnus thynnus-In Trouble

Hundreds of Miles, Millions of Dollars

Virginia Offshore Waters, Productive Feeding Grounds

Fish House Kitchen

Lobster Regulations, Not Only for Lobstermen

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

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

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

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

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

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

Reports

No abstract provided.

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

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.

Soft Shell Clam Mya Arenaria, Patrick K. Baker, Roger L. Mann

VIMS Books and Book Chapters

Large populations of soft shell clams persist only in relatively shallow, sandy, mesohaline portions of the Chesapeake Bay. These areas are mostly in Maryland, but also occur in the Rappahannock River, Virginia. In some other portions of the Bay, especially polyhaline portions, low populations of soft shell clams persist subtidally. Restricted populations persist intertidally.

Soft shell clams grow rapidly in the Chesapeake Bay, reaching commercial size in two years or less. They reproduce twice per year, in spring and fall, but probably only fall spawnings are important in maintaining population levels. Major recruitment events do not occur in most years, …

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

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.

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.

Hard Clam Mercenaria Mercenaria, G. Curtis Roegner, Roger L. Mann

VIMS Books and Book Chapters

The hard clam is found along the eastern coast of North America from the Gulf of St. Lawrence to Texas. In Chesapeake Bay, the hard clam is restricted to salinities above approximately 12 ppt. An extensive survey of hard clam resources is overdue.

Statements concerning long term trends in populations are not feasible. Hard clams ·grow to a maximum shell length of about 120 mm. There are few documented cases of diseases in wild hard clam populations. Parasitic infestations are also slight. The life cycle of the hard clam includes a pelagic larval phase and a relatively sedentary benthic juvenile …

Winter Habitat Selection Of Cutthroat Trout (Oncorhynchus Clarki) In A Large Regulated River, Ronald A. Englund

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Microhabitat use by cutthroat trout and macrohabitat use by both cutthroat and rainbow trout were studied i n the Green River below Flaming Gorge Dam during the winters of 1988 and 1989. Microhabitat parameters used by cutthroat trout, such as focal velocity, depth, and fish elevation, differed significantly in eddies, runs, and riffles. Mean focal velocities in runs were 0.79 body lengths/seconds (bl/s), in riffles 0.66 bl/s, and in eddies 0.24 bl/s. Cutthroat trout size also varied significantly with macrohabitat; larger fish were found in riffles.

Macrohabitat use by cutthroat trout and rainbow trout differed significantly among species, macrohabitat types, …

Is Rainbow Trout Condition Influenced By Invertebrate-Drift Density?, Randall B. Filbert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Users of the Instream Flow Incremental Methodology CTFIM) commonly assume that there is a positive linear relationship between available habitat (WUA) and stream fish biomass. However, several studies have shown a lack cf correlation between WUA and biomass. Such poor relationships may occur if other factors limit fish abundance. Food availability is a potentially important factor limiting abundance of stream fishes and can affect blomass by influencing fish condition (individual weight). I collected rainbow trout (Oncorhynchus mykiss) exposed to different levels of invertebrate-drift density to determine if condition was greater where food was more abundant. I also examined …

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

Reports

No abstract provided.

Marine Resource Bulletin Vol. 23, No. 1 & 2, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

Contents

Introduction

Clam Culture? Cultured Fish??

Outrunning Oyster Pathogens

Steamed Bay Scallops

Developing a Disease-Resistant Oyster

Seafood Consumption in the Year 2000

Callinectes sapidus, beautiful swimmer

Growing Fish Anywhere

On the Cutting Edge

Assessing the Hybrid Striped Bass Market

Reducing Off-flavors in Cultured Fish

For Commercial and Recreational Fishermen

Fish House Kitchen

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

Reports

No abstract provided.

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

Reports

No abstract provided.

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 …