Animal Sciences Commons^™

Proceedings Of The Charter Boat Management Workshop Held As Part Of The First National Fisheries Manager Conference Terrigal Nsw 21 September 1993, A. E. Magee

Fisheries management papers

General concern of all states was the actual AND potential impact of charter fishing on the resource and the inability to measure such impacts. The perceived problem with dual licensing was unregulated effort and the abilit to circumvent management controls. This paper provides current charter boat management arrangements in Australia, why they should be managed, types of charter vessels, Licensing, Management of recreational only charter vessels, Non-consumptive charters, Management guides and small scale charter operators, Commonwealth jurisdiction, Development of agreed strategies and Identification of future needs.

Review Of Recreational Gill, Haul And Cast Netting In Western Australia., F. B. Prokop

Fisheries management papers

In this paper the Recreational Netting Committee has addressed an extremely complex and controversial issue in a forthright manner. They have developed a set of management proposals which accommodates recreational netting while recognizing the concerns of non-netters and the general community. The Committee would like to stress that it considers this plan as a package. For example the Committee would be strongly opposed to the considerable operational restrictions contained under Section 5 if there were not a trade-off in terms of a fairer criteria for which estuaries are open as proposed in Section 6.2. Similarly, the Committee would not be …

Management Arrangements For The Southern Demersal Gillnet And Demersal Longline Fishery 1994/95 Season., Southern Demersal Gillnet And Demersal Longline Management Advisory Committee

Fisheries management papers

At its meeting of 7 April 1993 the Southern Demersal Gillnet and Demersal Longline Fishery Management Advisory Committee (hereafter called "the Committee) was advised of the Western Australian Fisheries Department's Research Division's concern over the status of shark stocks. All the data available indicate that whiskery sharks are severely over-exploited with stock levels declining by around 10% to 30% of original levels. Current levels of fishing effort are expected to cause the stock to decline further. Gummy sharks have high risk of over exploitation (stock has declined to 40% -50% of original levels. Dusty whaler stocks (bronze whaler) is uncertain …

The Use Of Recycled Plastic For Bin Boards In Fishing Vessels, Robert A. Fisher

Reports

No abstract provided.

Perkinsus Marinus Susceptibility And Defense-Related Activities In Eastern Oysters Crassostrea Virginica: Temperature Effects, Fu-Lin E. Chu, Jerome F. La Peyre

VIMS Articles

he relationship of potential defense-related cellular and humoral activities and the sus- ceptibility of eastern oysters Crassostrea virginica to the parasite Perkinsus marinus were examined at 10, 15, 20 and 25 "C. Oysters were acclimated at experimental temperatures for 20 d and then chal- lenged with R marinus. Total hemocyte counts (TC) and percentage of granulocytes (PG) 20 d after temperature acclimation were higher in oysters at high than at low acclimation temperature. Higher protein (P) and lysozyme (L) concentrations were found in oysters at 10 and 15 "C. No significant differ- ences in hemagglutination (H) titers due to temperature …

Chairman's Report To The Minister For Fisheries On Management Recommendations For 1993-94 And 1994-95 Western Rock Lobster Seasons., Rock Lobster Industry Advisory Committee

Fisheries management papers

This paper sets out the Rock Lobster Industry Advisory Committee (RLIAC) management recommendations for the 1993/94 and 1994/95 seasons. Currently and during these two years longer term management approaches are being examined separately by the RLIAC.

The Introduction And Translocation Of Fish, Crustaceans And Molluscs In Western Australia., Craig Lawrence

Fisheries management papers

This paper discusses three possible impacts of introduced and translocated aquatic organisms: 1. Genetic diversity 2. Pathogens 3 Ecosystem Conservation, in relation to costs and benefits to the community and the Western Australian environment.

Age, Growth, And Mortality Of Atlantic Croaker, Micropogonias Undulatus, In The Chesapeake Bay Region, With A Discussion Of Apparent Geographic Changes In Population Dynamics, Luiz R. Barbieri, Mark E. Chittenden Jr., Cynthia M. Jones

OES Faculty Publications

Atlantic croaker, Micropogonias undulatus, collected from commercial catches in Chesapeake Bay and in Virginia and North Carolina coastal waters during 1988-1991 (n=1,967) were aged from transverse otolith sections. Ages 1-8 were recorded, but eight-year-old fish were rare. Marginal increment analysis showed that for ages 1-7, annuli are formed once a year during the period April-May. Otolith age readings were precise: >99% agreement within and between readers. Observed lengths-at-age were highly variable and growth rate decreased after the first year. Despite the high variability in sizes-at-age, observed lengths for ages 1-7 fit the von Bertalanffy growth model (r2=0.99; n=753) well. …

Management Proposals For 1993/94 And 1994/95 Western Rock Lobster Season., Rock Lobster Industry Advisory Committee

Fisheries management papers

The Rock Lobster Industry Advisory Committee (RLIAC) in reviewing management arrangements for the rock lobster fishery, were concerned with two principle objectives: 1. That the management measures adopted would arrest the ongoing decline in breeding stock and seek to re-establish the number of breeding female rock lobster to levels consistent with known historic safe levels in the fishery. 2. That the management arrangements adopted would properly take into account market requirements in order to maximise returns to fishermen from an appropriate level of catch.

Observations Of The Alaskan Sea Scallop (Patinopecten Caurinus) Fishery Yakutat, Alaska 1993, William D. Dupaul, Ryan Carnegie

Reports

No abstract provided.

Review Of Bag And Size Limit Proposals For Western Australian Recreational Fishers., F. B. Prokop

Fisheries management papers

The Fisheries Department of WA and the Recreational Fishing Advisory Committee (RFAC), which is the peak body representing recreational fishers in WA, have been very pleased with the response to the implementation of two year review of recreational fisheries. Fisheries, RFAC and the fishing community recognise that the two year review was the first step in the continually evolving process of management of recreational fisheries. Since the new bag and size limit regulations were introduced in December 1991, there have been many suggestions for refinement and improvement. This management paper includes the most common and best suggestions for future management. …

The South West Beach Seine Fishery Draft Management Plan., D. A. Hall

Fisheries management papers

This paper describes the issues in and outlines a proposal for management of the beach seine fishery between Tim's thicket and Cape Beaufort on the south coast. It also proposes management measures for the fishery utilising small mesh gill nets and hand hauled seine nets in the area inside of the 10 metre depth contour.

The West Coast Shark Fishery Draft Management Plan., D. A. Hall

Fisheries management papers

The main purpose of this report is to advance the development of a scheme of management for the commercial shark fishery off the west coast of Western Australia. There is considerable scientific concern over the biological status of commercially important shark stocks in this region, particularly dusky whaler (Carcharhinus obscura), thickskin (Carcharhinus plumbeus) and whiskery sharks (Furgaelus macki).

Zebra Mussels In Virginia's Future, Shirley Baker, Patrick Baker, Roger L. Mann

Reports

No abstract provided.

An Evaluation Of Processed Atlantic Sea Scallops (Placopecten Magellanicus), William D. Dupaul, W. Steven Otwell, Thomas Rippen

Reports

No abstract provided.

Status Of The Major Oyster Diseases In Virginia 1992 A Summary Of The Annual Monitoring Program, Eugene M. Burreson

Reports

No abstract provided.

Juvenile Finfish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1992, Christopher F. Bonzek, Patrick J. Geer, James A. Colvocoresses, Robert E. Harris

Reports

This report summarizes data collected by the Virginia Institute of Marine Science (VIMS) monthly trawl survey cruises for January-December 1992. 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 management 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 and smaller …

Draft Supplemental Environmental Impact Statement Of Amendment 4 To The Atlantic Sea Scallop Fishery Management Plan (Fmp), James E. Kirkley, William D. Dupaul

Reports

No abstract provided.

Messick Point Economic Development: A Survey Of Area Seafood Businesses And Potential For Industry Growth, Sayra Grace Thacker

Reports

No abstract provided.

Fishing Charachteristic Of The 13.7 M (Headrope) Semi-Balloon Otter Trawl: Net Mensuration Report, Robert Middleton

Reports

No abstract provided.

Environmental Effects On The Growth And Development Of Eastern Oyster, Crassostrea Virginica (Gmelin, 1791), Larvae: A Modeling Study, Margaret M. Dekshenieks, Eileen E. Hofmann, Eric N. Powell

CCPO Publications

The effects of temperature, food concentration, salinity and turbidity on the growth and development of Crassostrea virginica larvae were investigated with a time-dependent mathematical model. Formulations used in the model for larval growth are based upon laboratory data. Simulations were done using temperature conditions characteristic of Laguna Madre, Galveston Bay, Apalachicola Bay, North Inlet and Chesapeake Bay. These simulations show that the duration of the planktonic larval phase, which is determined by larval growth rate, decreases at lower latitudes in response to warmer water temperatures. Also, oysters in the more southern locations have a longer spawning season during which the …

Phylogeny Of Lampridiform Fishes, Je Olney, Gd Johnson, Cc Baldwin

VIMS Articles

A survey of characters defining the Neoteleostei, Eurypterygii, Ctenosquamata, Acanthomorpha, Paracanthopterygii and Acanthopterygii convincingly places the Lampridiformes within the acanthomorph clade. Lampridiforms are primitive with respect to the Percomorpha but their precise placement among basal acanthomorphs remains unclear. In the absence of a specific sister-group hypothesis, Polymixia, percopsiform and beryciform taxa were used as outgroups in a cladistic analysis of the order. Monophyly of Lampridiformes is supported by four apomorphies; three are correlated modifications related to the evolution of a unique feeding mechanism in which the maxilla slides forward with the premaxilla during jaw protrusion. The Veliferidae are the sister …

Identification And Distribution Of Urophycis And Phycis (Pisces, Gadidae) Larvae And Pelagic Juveniles In The United-States Middle Atlantic Bight, Bruce H. Comyns, George C. Grant

VIMS Articles

Analysis of surface and subsurface plankton collections in the Middle Atlantic Bight (MAB) yielded larvae and juveniles of Phycis chesteri and five species of Urophycis. Identification was based on numbers of epibranchial gill rakers, abdominal vertebrae, and. fin rays (dorsal, caudal, pelvic), patterns of pterygiophore interdigitation, and morphometric characters including body depth at the vent and a ratio between height of the pelvic-fin base and length of the mandible. Urophycis tenuis accounted for 99% of the Urophycis larvae and pelagic juveniles collected during spring off Virginia and New Jersey and was most abundant offshore. Urophycis tenuis larvae were smallest at …

Age, Growth, And Reproduction Of Tautog Tautoga-Onitis (Labridae, Perciformes) From Coastal Waters Of Virginia, E. Brian Hostetter, Thomas A. Munroe

VIMS Articles

Tautog Tautoga onitis are gaining popularity in Virginia's coastal waters as a recreational and food fish. Adult tautog are seasonally abundant on inshore hard-bottom habitats (1-10 m) and inhabit offshore areas (10-75 m) year-round. Juveniles, especially newly-settled recruits, inhabit vegetated areas in shallow water (usually < 1 m). From March 1979 to July 1986, tautog were collected in lower Chesapeake Bay and nearby coastal waters to examine age, growth, and sexual maturation. Age estimates were determined from annular marks on opercle bones: 82% of the fish were age-10 or younger, 18% exceeded age-10, and 1% were age-20 or older. Marginal increment analysis revealed that annuli formed concurrent with a protracted spawning season (April-July). The von Bertalanffy growth equation, derived from back-calculated mean lengths-at-age, was l(t) = 742 [1-e-0.085 (t-1.816)]. Tautog are long-lived (25+ yr) and attain relatively large sizes (672 mm TL) slowly (K for sexes combined = 0.085). Growth rates of both sexes are similar, although males grow slightly faster (K = 0.090 vs. 0.085 for females). Maturity occurs at age-3 in both sexes. Growth rates for tautog from Virginia are similar to those reported nearly 25 years ago for tautog in Rhode Island. Growth rates for tautog are similar to those of other reef fishes, such as snappers and groupers. Habitat restriction, slow growth, great longevity, and increasing popularity by user groups may contribute to over-exploitation of this species in Virginia waters.

A New Method Of Oocyte Separation And Preservation For Fish Reproduction Studies, Susan K. Lowerre-Barbieri, Luiz R. Barbieri

VIMS Articles

No abstract provided.

Spatial And Temporal Occurrence Of Spanish Mackerel Scomberomorus-Maculatus In Chesapeake Bay, Mark E. Chittenden, Luiz R. Barbieri, Cynthia M. Jones

VIMS Articles

No abstract provided.

Index Of Papers Published In The Proceedings Of The National Shellfisheries Association, Roger Mann, Elaine M. Lynch, Michael Castagna, Bernadita M. Campos, Nancy Lewis

VIMS Articles

No abstract provided.

An Investigation Of Trace Element Contamination At Bamforth National Wildlife Refuge, Kimberly Dickerson, Pedro Ramirez Jr.

United States Fish and Wildlife Service: Publications

Bamforth National Wildlife Refuge (Bamforth) located in southeast
Wyoming serves as an important resting area for several species of migratory
waterbirds. Surveys were conducted in the summer months of 1992 to
determine bird use at Bamforth. Sediment, water, and biota were collected
from Bamforth to identify wetlands with potential contaminant problems that
may be affecting migratory waterbirds. Mercury and lead in water samples
were above criteria for the protection of aquatic life. Selenium levels in
vegetation and sediment were elevated above concentrations documented to
bioaccumulate and cause adverse reproductive effects in waterfowl. Selenium
levels in waterbird eggs were slightly greater …

Metal And Organic Residues In Addled Eggs Of Least Terns And Piping Plovers In The Platte Valley Of Nebraska, Timothy E. Fannin, Brent J. Eamoil

United States Fish and Wildlife Service: Publications

The threatened piping plover and the endangered interior least tern breed on the Platte River in Nebraska from the city of North Platte to the confluence with the Missouri River at Plattsmouth (Faanes 1983, Sidle et a/1988).

Major riverine nesting areas are the reaches from Lexington to Grand Island and from Columbus to Plattsmouth (Fig 1). Nesting habitat is sparsely vegetated or unvegetated islands, sandbars, or shorelines of the river.

An additional and important habitat is on the banks and islands within sand pits made by sand and gravel operations along the river.

In the initial nest of the year, …

Contaminants In Oil Field Produced Waters Discharged Into The Loch Katrine Wetland Complex, Park County, Wyoming And Their Bioconcentration In The Aquatic Bird Food Chain, Pedro Ramirez Jr.

United States Fish and Wildlife Service: Publications

The 866-acre Loch Katrine wetland complex in Park County, Wyoming provides habitat for many species of aquatic birds. However, the complex is sustained primarily by oil field produced waters. This study was designed to determine if constituents in oil field produced waters discharged into Loch Katrine pose a risk to aquatic birds inhabiting the wetlands. Trace elements, hydrocarbons and radium-226 concentrations were analyzed in water, sediment and biota collected from the complex during 1992. Boron and radium-226 were present in the produced water discharge and are bioaccumulating in the food chain. Although not present in acute concentrations, elevated boron in …