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2002

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Articles 1 - 30 of 92

Full-Text Articles in Aquaculture and Fisheries

Estimation Of Relative Abundance Of Recreationally Important Juvenile Finfish In The Virginia Portion Of Chesapeake Bay Project Rfol-3 July 2001 - June 2002, Marcel M. Montaine, Herbert M. Austin, Patrick J. Geer, Wendy A. Lowery Dec 2002

Estimation Of Relative Abundance Of Recreationally Important Juvenile Finfish In The Virginia Portion Of Chesapeake Bay Project Rfol-3 July 2001 - June 2002, Marcel M. Montaine, Herbert M. Austin, Patrick J. Geer, Wendy A. Lowery

Reports

No abstract provided.


Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1999-2003 Annual Report, 1 September 2001 - 31 October 2002, Philip W. Sadler, Robert J. Latour, Robert E. Harris, Kristin L. Maki, John E. Olney Dec 2002

Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1999-2003 Annual Report, 1 September 2001 - 31 October 2002, Philip W. Sadler, Robert J. Latour, Robert E. Harris, Kristin L. Maki, John E. Olney

Reports

This report presents the results of striped bass (Marone saxatilis) tagging and monitoring activities in Virginia during the penod 1 September 2001 through 31 October 2002. It includes an assessment of the biological characteristics of striped bass taken from the 2002 spring spawning run, estimates of annual survtval based on annual spring tagging, and the results of the fall 2001 directed mortality study that is cooperative with the Maryland Department of Natural Resources. The information contained in this report is required by the Atlantic States Marine Fisheries Commission and is used to implement a coordinated management plan for striped bass ...


Ocean Zoning For The Gulf Of Maine: A Background Paper, Fara Courtney, Jack Wiggin Dec 2002

Ocean Zoning For The Gulf Of Maine: A Background Paper, Fara Courtney, Jack Wiggin

Urban Harbors Institute Publications

Coastal and ocean management is a constantly evolving practice. For at least two decades, coastal communities around the world have been experimenting with new ways to control a multitude of activities in their urban and rural harbors. The number and diversity of Marine Protected Areas are growing, with an increasing focus on protecting integrated biological communities, rather than individual species of concern. The United States and Canada are each developing new, comprehensive ocean polices, looking to better integrate management functions at all levels of government.

All of these initiatives – from local to national - reflect some common truths about the state ...


An Examination Of Predatory Pressures On Piping Plovers Nesting At Breezy Point, New York, John Tanacredi Ph.D., Brook Lauro Dec 2002

An Examination Of Predatory Pressures On Piping Plovers Nesting At Breezy Point, New York, John Tanacredi Ph.D., Brook Lauro

Faculty Works: CERCOM

This study examines predatory threats to Piping Plovers (Charadrius melodus) nesting at Breezy Point, Gateway National Recreation Area, New York. Several methods used include: 1) an evaluation of reproductive success data with documentation of predation to eggs and chicks, 2) predator surveys, and 3) an artificial nest study. The range of breeding pairs nesting from 1988-1996 was 11-19, with an average of 15.8 (SE ± 0.79) pairs/season. The average number of eggs hatched and chicks fledged per year for pairs was 2.2 ± 0.23 and 0.8 ± 0.16 respectively. Reasons for egg losses often went undetected ...


Initial Observations Of Plastic-Lined Ponds For Fingerling Walleye Production, Matthew L. Rogge, Alan A. Moore, Christopher P. Clouse, Joseph E. Morris Dec 2002

Initial Observations Of Plastic-Lined Ponds For Fingerling Walleye Production, Matthew L. Rogge, Alan A. Moore, Christopher P. Clouse, Joseph E. Morris

Animal Ecology Publications

Fish culture ponds are commonly fertilized to increase fish production through enhancement of the plankton forage base. Many fish culture facilities rely on natural production of zooplankton and aquatic insects as food sources for larval fish. Literature on pond fertilization regimes varies; recommendations range from no fertilization to a combination of inorganic and organic fertilizers. More research on the interactions among water quality, nutrients, plankton (phytoplankton and zooplankton) and fertilizers of the appropriate nutrient ratios is needed to move fertilization from an art to a science.


Evaluation Of Three Potential Methods For Preventing The Spread Of The Salmon Louse, Lepeophtheirus Salmonis (Kreyer, 1837), Micheal Pietrak Dec 2002

Evaluation Of Three Potential Methods For Preventing The Spread Of The Salmon Louse, Lepeophtheirus Salmonis (Kreyer, 1837), Micheal Pietrak

Electronic Theses and Dissertations

Lepeophtheirus salmonis or salmon lice infections are one of the most prevalent parasitic infections in the salmon aquaculture industry. Salmon lice cause an estimated loss of 3% of the production of Maine's salmon industry annually. Within the State of Maine only a portion of the farm sites experience salmon lice infections on an annual basis, while some sites have never had infections of Lepeophtheirus salmonis. Because of the potential impact that salmon lice infections could mean to those areas that to date have been fiee of L. salmonis infections, there has been concern both on the part of the ...


A New Apex Predator In The Gulf Of Maine? Large, Mobile Crabs (Cancer Borealis) Control Benthic Community Structure, Amanda V. Leland Dec 2002

A New Apex Predator In The Gulf Of Maine? Large, Mobile Crabs (Cancer Borealis) Control Benthic Community Structure, Amanda V. Leland

Electronic Theses and Dissertations

Apex predators can control community structure by preying on strongly interacting species at lower trophic levels. Fishing of apex predators in the marine realm often results in herbivore dominated systems. In the Gulf of Maine, coastal subtidal communities became dominated by grazing green sea urchins (Strongylocentrotus droehachiensis) following the extirpation of large, predatory groundfish from coastal zones. Subsequent depletion of sea urchins since the late 1980s functionally eliminated this dominant herbivore from vast regions. Sea urchin recruitment is low or nonexistent in communities dominated by fleshy algae that have developed since the decline of sea urchin populations. We hypothesized that ...


Modeling The Role Of No-Take Marine Reserves In Fisheries Management, Deidre F. Gilbert Dec 2002

Modeling The Role Of No-Take Marine Reserves In Fisheries Management, Deidre F. Gilbert

Electronic Theses and Dissertations

In recent years there has been increasing interest in the potential of no-take marine reserves to benefit fisheries management. Scientific reviews have shown that reserves often lead to substantial increases in the density, biomass, size and diversity of marine fishes inside their boundaries. However, little empirical work has been done to determine the effect of reserves on the fisheries outside their boundaries, such as potential changes in yield, size of fleet, or variability in catch. In order to explore the interaction between the biological growth and dispersion processes of the harvested stock and the changing economic incentives of harvesters created ...


Two Bioeconomic Studies On Haddock Culture: Live Feed And Juvenile Production, Kate M. Waning Dec 2002

Two Bioeconomic Studies On Haddock Culture: Live Feed And Juvenile Production, Kate M. Waning

Electronic Theses and Dissertations

The State of Maine is reliant upon its natural resources. Wild catches of marine finfish, especially ground fish such as cod and haddock, are declining. In addition, several new restrictions have been placed on the culture of Atlantic salmon due to its listing under the Endangered Species Act. These issues serve as an impetus to explore the development of alternative species for cold-water marine aquaculture. This research focuses on early haddock culture. The two areas where haddock culture varies from production of other species are the need for live feeds and proximity to seawater. Unlike salmon, haddock spend their entire ...


The Effect Of Temperature On The Development, Growth And Survival Of Atlantic Cod (Gadus Morhua) During Early Life-Histories, Adrian Jordaan Dec 2002

The Effect Of Temperature On The Development, Growth And Survival Of Atlantic Cod (Gadus Morhua) During Early Life-Histories, Adrian Jordaan

Electronic Theses and Dissertations

For poikilothennic animals, and in particular those that inhabit aquatic habitats, temperature has a significant effect on all life processes. The purpose of this research was to investigate the contribution of temperature on embryonic development and survival and its effect on vital rates. Of particular interest was what aspect(s) of egg and larval life-histories are most affected by temperature and what consequence temperature effects may have on cumulative mortality. Three batches of Atlantic cod (Gadus morhua) eggs were acquired from a Newfoundland source of adult broodstock held at 4555°C. The eggs were divided andacclimated to four constant temperature ...


Predators And Life Histories Shape Lestes Damselfly Assemblages Along A Freshwater Habitat Gradient, Robby Stoks, Mark A. Mcpeek Oct 2002

Predators And Life Histories Shape Lestes Damselfly Assemblages Along A Freshwater Habitat Gradient, Robby Stoks, Mark A. Mcpeek

Open Dartmouth: Faculty Open Access Articles

Survey data from New England showed that assemblages of Lestes dam- selflies are organized along the entire gradient of pond permanence and predator presence. One assemblage occupies vernal ponds lacking large dragonfly predators and fish; four are largely confined to temporary ponds that typically contain dragonfly predators; one dom- inates fishless permanent ponds and lakes where dragonflies are the top predators; and one dominates permanent ponds and lakes where fish are the top predators. We determined the role of life history and predation in maintaining this striking pattern by conducting a series of transplant experiments in the field and a ...


Marine Resource Bulletin Vol. 34, No. 2, Virginia Sea Grant, Virginia Institute Of Marine Science Oct 2002

Marine Resource Bulletin Vol. 34, No. 2, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

In This Issue

Providing Sanctuary to An Old Friend By Dr. Romuald Lipcius & Jacques van Montfrans

Making a Case for the Oyster: Putting Ecological Benefits into Economic Terms By Thomas J. Murray When it Comes to Wild Ponies, Legends and Lore Abound By Charlie Petrocci

’Tis the Season for a Storm Surge By Dr. Carl H. Hobbs, III

Using Aquaculture to Slay the SOLs By Angela

Correa Bay Sites are Magnets for Cobia and Flounder By Jon Lucy

News from the Point


Evaluating The Recruitment Of American Eel, Anguilla Rostrata, To The Potomac - Spring 2002 : February 2002 - June 2002, Hank Brooks, M. Todd Mathes, Marcel M. Montane Oct 2002

Evaluating The Recruitment Of American Eel, Anguilla Rostrata, To The Potomac - Spring 2002 : February 2002 - June 2002, Hank Brooks, M. Todd Mathes, Marcel M. Montane

Reports

Measures of juvenile recruitment success have long been recognized as valuable fisheries management tools. In Chesapeake Bay, these measures provide reliable indicators for future year class strength for blue crabs (Lipcius and Van Engel, 1990), striped bass (Goodyear, 1985), as well as several other recreationally and commercially important species (Geer and Austin, 1999).

The American Eel, Anguilla rostrata, is a valuable commercial species along the entire Atlantic coast from New Brunswick to Florida. Landings along the U.S. Atlantic coast have varied from 290 MT in 1962 to a high of 1600 MT in 1975 (NMFS, 1999). In recent years ...


The Crest, Fall 2002, Virginia Institute Of Marine Science Oct 2002

The Crest, Fall 2002, Virginia Institute Of Marine Science

Reports

Table of Contents:

  • VIMS researchers win 5-year, $1.7 million NSF award
  • Pair complete 3-year study of clam disease
  • VIMS joins National Shark Research Consortium
  • McNinch receives Young Investigator award
  • Field research sheds light on barndoor skate
  • Management is key to scallop fishery's success
  • VIMS acquires new code for model
  • Yes vote on bond referendum good news for VIMS
  • CBNERR announces Summer 2003 educational programs
  • Workshop series targets charter boat operators
  • Ducklow elected AAAS Fellow
  • VIMS takes to the air(port)
  • VIMS scientists to host international conferences
  • Web update
  • VIMS researchers in educational videos
  • Hoenig writes "hot paper"
  • VIMS ...


Diet Dynamics Of The Adult Piscivorous Fish Community In Spirit Lake, Iowa, Usa 1995–1997, Hongsheng Liao, Clay L. Pierce, Joe G. Larscheid Sep 2002

Diet Dynamics Of The Adult Piscivorous Fish Community In Spirit Lake, Iowa, Usa 1995–1997, Hongsheng Liao, Clay L. Pierce, Joe G. Larscheid

Natural Resource Ecology and Management Publications

Diets of adults of six important piscivorous fish species, black crappie Pomoxis nigromaculatus, largemouth bass Micropterus salmoides, northern pike Esox lucius, smallmouth bass Micropterus dolomieui, walleye Stizostedion vitreum, and yellow perch Perca flavescens were quantified in Spirit Lake, Iowa, USA from May to October in 1995–1997. Forty-one prey taxa were found in the diets of these species, including 19 species of fish. The most important prey taxa overall were yellow perch, amphipods and dipterans. Diets of northern pike and walleye were dominated by yellow perch. Largemouth bass diets included large percentages of both yellow perch and black bullhead Ameiurus ...


A Study Of The River Origin Of American Shad Captured In The Atlantic Ocean Intercept Fishery In Virginia : Final Report, 2001, Kristin L. Maki, John E. Olney, John M. Hoenig Aug 2002

A Study Of The River Origin Of American Shad Captured In The Atlantic Ocean Intercept Fishery In Virginia : Final Report, 2001, Kristin L. Maki, John E. Olney, John M. Hoenig

Reports

The Virginia Department of Game and Inland Fisheries (VDGIF) has been releasing larval American shad into the James and York river systems since 1993 and these fish are given river-specific marks before release. Our in-river monitoring program had established that we could estimate the proportion of fish returning to spawn in the rivers that have hatchery marks. Furthermore, we were able to obtain a sample of 200 fish from the intercept fishery off Chincoteague Island, Virginia, in 2000 and screening of the otoliths by VDGIF personnel revealed the presence of one fish with a James River hatchery mark and one ...


Estimating Population Parameters Of American Shad In The York River, Virginia : Final Report, 2001, K. L. Maki, J. E. Olney, J. M. Hoenig Aug 2002

Estimating Population Parameters Of American Shad In The York River, Virginia : Final Report, 2001, K. L. Maki, J. E. Olney, J. M. Hoenig

Reports

No abstract provided.


An Examination Of The Georges River Clam Management Program, Kristin E. Togue Brawn Aug 2002

An Examination Of The Georges River Clam Management Program, Kristin E. Togue Brawn

Electronic Theses and Dissertations

This thesis examines the Georges River Clam Management Program, a multi-town interlocal harvesting and management plan in mid-coast Maine. It discusses relevant economic and communal action theory, and examines their application to the development of the program. Chapter 1 reviews the purposes and methods of the study. Chapter 2 reviews the relevant clam biology necessary to understand the principles of soft-shell clam management. Chapters 3 and 4 provide the history and background of clam harvesting and management in Maine. Chapter 5 discusses the Georges River Program, including the factors that led to its development and the details of its organization ...


Relationships Between Stream Geomorphology And Fish Community Structure And Diversity In Maine, Emily Gaenzle Aug 2002

Relationships Between Stream Geomorphology And Fish Community Structure And Diversity In Maine, Emily Gaenzle

Electronic Theses and Dissertations

Predicting patterns in species distribution and abundance for resource management and conservation is a major focus of applied ecology. The primary objective of this study was to determine if there is a predictable relationship between stream geomorphology and fish community structure, native species richness, and native salmonid abundance in Maine. Specifically, I examined relationships between fish assemblages and geomorphic stream types, as delineated by the Rosgen classification system (Rosgen 1996). Fifty-three stream reaches in Maine were classified, and fish communities within the reaches were characterized using backpack electrofishing. Species richness was lowest in A-type streams (i.e., steep, entrenched, confined ...


Virginia Oyster Reef Restoration Map Atlas, Marcia Berman, Sharon Killeen, Roger Mann, J. A. Wesson Aug 2002

Virginia Oyster Reef Restoration Map Atlas, Marcia Berman, Sharon Killeen, Roger Mann, J. A. Wesson

Reports

The maps are generated to illustrate the results of the targeting effort following the protocol described above. The authors recognize this level of targeting does not preclude the need for field inspection at potential sites prior to reef construction. The atlas is comprised of a series of boxes preceded by an index locator. The scale of each box may vary. The potential restoration areas are illustrated in red. The legend reports the total acres available for restoration within the boundary of each box. At this time, the size of individual restoration sites can only be retrieved using the digital data ...


A Pilot Study To Test Ventless Traps As A Means To Quantify Populations Of The American Lobster (Homarus Americanus), Carin Louise Poeschel Aug 2002

A Pilot Study To Test Ventless Traps As A Means To Quantify Populations Of The American Lobster (Homarus Americanus), Carin Louise Poeschel

Electronic Theses and Dissertations

The American lobster, Homarus americanus, is Maine's most valuable marine fishery. The state of Maine has an economic interest in the protection of this resource. The health of this industry depends on effective management for sustainability. However, there is little quantitative information on American lobsters less than harvestable size. A study was conducted to evaluate the utility of traps modified to catch sublegal lobsters. With the aid of fishernlen fiom six of the eight Maine coastal counties over a four-month time period (July through October, 2000), data were recorded to compare catch rates in experimental traps with no escape ...


Qpx Susceptibility In Hard Clams Varies With Geographic Origin Of Brood Stock, Lisa M. Ragone Calvo, Eugene Burreson Aug 2002

Qpx Susceptibility In Hard Clams Varies With Geographic Origin Of Brood Stock, Lisa M. Ragone Calvo, Eugene Burreson

Reports

T he results of recent investigations by VIMS and collaborating scientists in Massachusetts and New Jersey indicate that clam strains produced from brood stocks of South Carolina and Florida origin are more susceptible to QPX (Quahog Parasite Unknown) disease than clam strains originating from Virginia, New Jersey, and Massachusetts brood stocks. During a 3-year study clam strains produced at VIMS from brood stocks originating from Massachusetts, New Jersey, Virginia, South Carolina, and Florida were grown at sites in Massachusetts, New Jersey and Virginia and evaluated for survival, growth, condition and QPX disease susceptibility. The clams originating from South Carolina and ...


Marine Resource Bulletin Vol. 34, No. 1, Virginia Sea Grant, Virginia Institute Of Marine Science Jul 2002

Marine Resource Bulletin Vol. 34, No. 1, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

CONTENTS

FEATURES ON EDUCATION

  • Recruiting Marine Scientists for the Future by Sally Mills
  • Resources for the Classroom & Beyond
  • Life-long Learning Outside the Classroom by Sally Mills
  • Reaching Out to Watermen & Their Families by Charlie Petrocci

NEW PUBLICATIONS

ANNOUNCEMENTS


Comparison Of Water Quality, Zooplankton Density, And Cover In Razorback Sucker (Xyrauchen Texanus [Abbott]) Spawning Areas Of Lake Mead And Lake Mohave, Michael E. Golden, Paul B. Holden, Southern Nevada Water Authority Jul 2002

Comparison Of Water Quality, Zooplankton Density, And Cover In Razorback Sucker (Xyrauchen Texanus [Abbott]) Spawning Areas Of Lake Mead And Lake Mohave, Michael E. Golden, Paul B. Holden, Southern Nevada Water Authority

Publications (WR)

Las Vegas Bay and Echo Bay in Lake Mead have small, self-sustaining populations of razorback sucker (Xyrauchen texanus [Abbot]). Increased productivity and cover have been hypothesized as reasons for successful recruitment of razorback sucker in Lake Mead. Conversely, reproduction has been documented on Lake Mohave, another lower Colorado River reservoir, but no recruitment has been observed. In 2000, BIO-WEST, Inc. was contracted by the Southern Nevada Water Authority to design and implement a study to examine nutrient levels, zooplankton density, and cover in areas with and without razorback sucker recruitment success. We sampled Echo Bay, Las Vegas Bay, and Trail ...


Fish Community Structure In The Missouri And Lower Yellowstone Rivers In Relation To Flow Characteristics, Mark A. Pegg, Clay L. Pierce Jul 2002

Fish Community Structure In The Missouri And Lower Yellowstone Rivers In Relation To Flow Characteristics, Mark A. Pegg, Clay L. Pierce

Natural Resource Ecology and Management Publications

Human alteration is commonplace among large rivers and often results in changes in the flow regime which can lead to changes in fish community structure. We explored the features of fish community structure, morphological characteristics, functional composition, and life-history attributes in relation to six unique flow regimes in the Missouri and lower Yellowstone rivers where we found significant differences in community composition and abundance. The clearest pattern was the distinction between the channelized portion of the river below the mainstem reservoirs and all other parts of the Missouri and lower Yellowstone rivers due to a marked reduction of species richness ...


Final Contract Report "Performance Of A 4" Ring Scallop Dredge In The Context Of An Area Management Strategy", William D. Dupaul Jul 2002

Final Contract Report "Performance Of A 4" Ring Scallop Dredge In The Context Of An Area Management Strategy", William D. Dupaul

Reports

No abstract provided.


The Crest, Summer 2002, Virginia Institute Of Marine Science Jul 2002

The Crest, Summer 2002, Virginia Institute Of Marine Science

Reports

Table of Contents:

  • To B or not to B: Pair use trout to study kidney's role in nurturing fish immune cells
  • VIMS researchers use sonar to study impact of pound nets on sea turtles
  • New findings surprise Perkinsus researchers
  • VIMS and Wales scientists initiate study of turbulence and sediment movement


Evaluation Of Comparative Watercraft Personal Property Taxation In Northern Neck Localities, Thomas J. Murray Jun 2002

Evaluation Of Comparative Watercraft Personal Property Taxation In Northern Neck Localities, Thomas J. Murray

Reports

No abstract provided.


Population Characteristics, Habitats, And Movements Of Lake Sturgeon (Acipenser Fulvescens) In The Lower Niagara River, Thomas C. Hughes May 2002

Population Characteristics, Habitats, And Movements Of Lake Sturgeon (Acipenser Fulvescens) In The Lower Niagara River, Thomas C. Hughes

Environmental Science and Ecology Theses

Before my study, anecdotal information, such as incidental catches and reported sightings, provided the only means of assessing lake sturgeon, a species listed as threatened in New York State, in the lower Niagara River. The objectives of my study were to ( 1) assess the population of lake sturgeon by collecting and analyzing age, growth, and CPUE data, (2) compare the habitats and movements of adults and juveniles, and (3) identify potential spawning, feeding, and nursery habitats and compare use of these habitats between adults and juveniles. From late July 1998 through August 2000, 67 lake sturgeon were captured using gill ...


Ecology Of The Missouri River. Progress Report, Dingell-Johnson Project F-75-R-19, Supplement 1- Missouri River Creel Survey, Camp Creek To Kansas State Line, 31 March Through 12 October 2001, Gerald Mestl May 2002

Ecology Of The Missouri River. Progress Report, Dingell-Johnson Project F-75-R-19, Supplement 1- Missouri River Creel Survey, Camp Creek To Kansas State Line, 31 March Through 12 October 2001, Gerald Mestl

Nebraska Game and Parks Commission -- White Papers, Conference Presentations, & Manuscripts

This report describes Missouri River activities and results related to a channelized Missouri River creel survey conducted from 31 March through 12 October 2001. This is the second of a planned annual creel survey to be conducted on alternating sections of the channelized Missouri River to measure changes in recreational fishing activity, especially those changes due to large scale habitat restoration efforts. Future reports will contain additional analyses of these data. Anglers spent over 22,000 hours fishing the Missouri River from Camp Creek (rkm 883.5) to the Kansas state line (rkm 790.2) during the survey period. Effort ...