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1997

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Articles 1 - 30 of 56

Full-Text Articles in Aquaculture and Fisheries

Quantitative Assessment Of Fishing Mortality For Tautog (Tautoga Onitis) In Virginia : Preliminary Report, Geoffrey G. White, James E. Kirkley, Jon A. Lucy Dec 1997

Quantitative Assessment Of Fishing Mortality For Tautog (Tautoga Onitis) In Virginia : Preliminary Report, Geoffrey G. White, James E. Kirkley, Jon A. Lucy

Reports

Tautog (Tautoga onitis) have become a popular food and sport fish from Massachusetts to Virginia over the past ten years. Tautog are a long lived (30 years), late maturing (3-4 years), slow growing species. Although the maximum age recorded in Virginia is 31 years, recent studies have found that over 95% of the population is less than 12 years old (Hostetter and Munroe, 1993; White et aL, 1996). Adult tautog inhabit hard bottom wreck and reef environments, which are limited in Virginia's waters and are easily located and re-located by fishermen. Tautog are known to migrate inshore-offshore in New ...


The Bait Industry In Illinois, Michigan, Minnesota, Ohio, South Dakota, And Wisconsin, Thomas G. Meronek, Fred A. Copes, Daniel W. Coble Dec 1997

The Bait Industry In Illinois, Michigan, Minnesota, Ohio, South Dakota, And Wisconsin, Thomas G. Meronek, Fred A. Copes, Daniel W. Coble

NCRAC Technical Bulletins

This bulletin provides information from a comprehensive survey of the status of the bait industry in the North Central states of Illinois, Michigan, Minnesota, Ohio, South Dakota, and Wisconsin. We supply information on species marketed, state by state estimated quantities of baitfish and non-fish baits sold, and supply shortages. Information in this bulletin should be useful to operating bait dealers and prospective bait wholesaler and retail dealers.


Economic And Business Considerations For Small-Scale Soft Crab Production, Michael J. Oesterling, Chuck Adams Dec 1997

Economic And Business Considerations For Small-Scale Soft Crab Production, Michael J. Oesterling, Chuck Adams

Reports

No abstract provided.


Postnatal Observations Of Behavioral Patterns Within The Social Organization Of Captive Bottlenose Dolphins (Tursiops Truncatus), Stacey R. Hanson Nov 1997

Postnatal Observations Of Behavioral Patterns Within The Social Organization Of Captive Bottlenose Dolphins (Tursiops Truncatus), Stacey R. Hanson

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Mirage Dolphin Environment opened in 1991. The Mirage has eight Atlantic Bottlenose dolphins. Four of these dolphins were relocated to the facility from other facilities that were either overcrowded or shutting down. The other four were born at the Mirage. The purpose and intent of the Mirage Dolphin Environment is to provide a nurturing environment for the dolphins and to educate the public about marine mammals and their ecosystems. The increased awareness associated with education will hopefully encourage public support for efforts to conserve and protect marine mammals and their environment.


Fish Lesions, Pfiesteria And The Chesapeake Bay, Virginia Sea Grant Marine Advisory Program Sep 1997

Fish Lesions, Pfiesteria And The Chesapeake Bay, Virginia Sea Grant Marine Advisory Program

Reports

No abstract provided.


The Northwest Salmon Crisis: A Documentary History - Book Review, Chris Friday Aug 1997

The Northwest Salmon Crisis: A Documentary History - Book Review, Chris Friday

History Faculty and Staff Publications

In this work, editors Joseph Cone and Sandy Ridlington have brought together an impressive set of documents dating from the mid-1850s treaties with Native Americans to the present. The authors divide the volume into four sections that cover the ideologies and parties involved in the debates over the place and role of salmon fisheries.


Trophic Studies On Constructed “Restored” Oyster Reefs, Roger Mann, Juliana Harding Aug 1997

Trophic Studies On Constructed “Restored” Oyster Reefs, Roger Mann, Juliana Harding

Reports

No abstract provided.


Changes In Reproductive Morphology And Physiology Observed In The Amphipod Crustacean, Melita Nitida Smith, Maintained In The Laboratory On Polluted Estuarine Sediments, John T. Tanacredi Ph.D., B. Borowsky, P. Aitken-Ander Jul 1997

Changes In Reproductive Morphology And Physiology Observed In The Amphipod Crustacean, Melita Nitida Smith, Maintained In The Laboratory On Polluted Estuarine Sediments, John T. Tanacredi Ph.D., B. Borowsky, P. Aitken-Ander

Faculty Works: CERCOM

An earlier study showed that the amphipod crustacean Melita nitida Smith maintained on sediments dosed with waste crankcase oil developed physiological and morphological abnormalities. Most notably, mature females developed abnormal setae along the edges of their brood plates. The present study was conducted to determine whether similar abnormalities might be induced in animals maintained on polluted field sediments containing petroleum by-products among other toxic substances. In the laboratory, heterosexual pairs were maintained on three sediments taken from Jamaica Bay (New York) plus one control sediment and one toxic substratum (Ulva lactuca (L.) thalli). The results mirrored the results of the ...


Juvenile Fish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Volume 1996, Patrick J. Geer, Herbert M. Austin, Christopher F. Bonzek Jul 1997

Juvenile Fish And Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Volume 1996, Patrick J. Geer, Herbert M. Austin, Christopher F. Bonzek

Reports

No abstract provided.


Evaluation Of The Potomac River American Eel (Anguilla Rostrata) Pot Fishery Based On Commercial Landings, Patrick J. Geer Jun 1997

Evaluation Of The Potomac River American Eel (Anguilla Rostrata) Pot Fishery Based On Commercial Landings, Patrick J. Geer

Reports

No abstract provided.


Culture Potential Of Selected Crayfishes In The North Central Region, Paul Brown, Jeff Gunderson May 1997

Culture Potential Of Selected Crayfishes In The North Central Region, Paul Brown, Jeff Gunderson

NCRAC Technical Bulletins

The first topic that must be considered is the name. Crayfish is the term most often used in technical literature and the name used in this document. However, these same animals are also known as crawfish, crawdads, and mudbugs. Rest assured, regardless of the name, they all refer to the same broad category of animals. Specifically, they are freshwater decapod crustaceans, the freshwater equivalent of shrimp and lobsters. In most years, production of crayfish in the United States is the second largest aquacultural industry. This fact surprises most people in the North Central Region (NCR) because the availability of crayfish ...


Enterprise Budgets For Yellow Perch Production In Cages And Ponds In The North Central Region, 1994-95, Jean Rosscup Riepe May 1997

Enterprise Budgets For Yellow Perch Production In Cages And Ponds In The North Central Region, 1994-95, Jean Rosscup Riepe

NCRAC Technical Bulletins

This study reports the results of an investigation into the costs of culturing yellow perch for the food fish market in the North Central Region (NCR). Enterprise budgets were developed for both cage and pond production systems at two size levels, 5,000 and 50,000 pounds of production. Because only a handful of established yellow perch aquaculture operations currently exist in the NCR, hypothetical production systems were modeled. Production values used in the budgets (e.g., feed conversion ratio, death loss, stocking rate) were based on the expert opinion of research and extension personnel at various universities in the ...


Costs For Pond Production Of Yellow Perch In The North Central Region, 1994–95, J. Rosscup Riepe May 1997

Costs For Pond Production Of Yellow Perch In The North Central Region, 1994–95, J. Rosscup Riepe

NCRAC Extension Fact Sheets

The development of culture methods for yellow perch has sparked interest throughout the North Central Region (NCR). Many researchers and industry entrepreneurs believe that this species holds tremendous potential for aquaculture in the region, from both production and marketing perspectives. As a result, a substantial amount of research on yellow perch culture methods has been undertaken in the region in recent years. Economic research on yellow perch, however, has been more limited. The budget work reported in this publication is the result of an effort by Purdue University and the North Central Regional Aquaculture Center (NCRAC) to provide economic information ...


Evaluation Of Translocation Criteria For Trumpeter Swans Reintroduced To Northern Utah: Habitat Quality And Interactions With Tundra Swans, Katharina A. M. Engelhardt May 1997

Evaluation Of Translocation Criteria For Trumpeter Swans Reintroduced To Northern Utah: Habitat Quality And Interactions With Tundra Swans, Katharina A. M. Engelhardt

All Graduate Theses and Dissertations

Fifty-seven Trumpeter swans (Cygnus buccinator) were translocated to the Bear River Migratory Bird Refuge and the Bear River Club Company in northern Utah. The purpose of this effort was to encourage dispersal of the Rocky Mountain population of Trumpeter swans during the winter, and to reestablish a migratory route to southern wintering grounds. I assessed the success of the translocation by evaluating 13 translocation criteria proposed in the literature. In this study I addressed two of these criteria in detail by evaluating habitat quality at the translocation sites and by analyzing potential competitive interactions with Tundra swans (Cygnus columbianus).

Habitat ...


Response Of Littoral Invertebrates To Reduction Of Fish Density: Simultaneous Experiments In Ponds With Different Fish Assemblages, Clay L. Pierce, Bruce D. Hinrichs Apr 1997

Response Of Littoral Invertebrates To Reduction Of Fish Density: Simultaneous Experiments In Ponds With Different Fish Assemblages, Clay L. Pierce, Bruce D. Hinrichs

Animal Ecology Publications

We experimentally reduced densities of predatory fish in replicated 2 m2 areas of the littoral zone in two ponds to test whether density and biomass of invertebrates would respond to release from fish predation. The ponds are of similar size and in close proximity, but support different fish assemblages: bluegills (Lepomis macrochirus Rafinesque) and largemouth bass (Micropterus salmoides (Lacepede)) in one pond, and bluespotted sunfish (Enneacanthus gloriosus (Holbrook)) and chain pickerel (Esox niger Lesueur) in the other. Fish densities were reduced to less than 15% of ambient levels in both experiments. In the bluegill–bass pond, density and biomass ...


Acute Toxicity And Behavioral Effects Of Chlorpyrifos, Permethrin, Phenol, Strychnine, And 2,4-Dinitrophenol To 30-Day-Old Japanese Medaka (Oryzias Latipes), Patricia J. Rice, Charles D. Drewes, Theresa M. Klubertanz, Steven P. Bradbury, Joel R. Coats Apr 1997

Acute Toxicity And Behavioral Effects Of Chlorpyrifos, Permethrin, Phenol, Strychnine, And 2,4-Dinitrophenol To 30-Day-Old Japanese Medaka (Oryzias Latipes), Patricia J. Rice, Charles D. Drewes, Theresa M. Klubertanz, Steven P. Bradbury, Joel R. Coats

Entomology Publications

Five chemicals with different modes of action were evaluated in laboratory studies to determine their acute toxicity (48-h median lethal concentration [LC50]) and behavioral effects on 30-d-old Japanese medaka (Oryzias latipes). The order of toxicity for these xenobiotics was permethrin > chlorpyrifos > 2,4-dinitrophenol (2,4-DNP) > strychnine > phenol. The 48-h LC50s were significantly different and ranged from 0.011 to 24.1 mg/L. In addition, chlorpyrifos and permethrin accumulated in the tissues of juvenile O. latipes. Observations of five behavioral/morphological responses, including changes in equilibrium, general activity, startle response, and morphology (e.g., hemorrhage and deformities) were used as ...


Response Of Littoral Invertebrates To Reduction Of Fish Density: Simultaneous Experiments In Ponds With Different Fish Assemblages, Clay L. Pierce, Bruce D. Hinrichs Apr 1997

Response Of Littoral Invertebrates To Reduction Of Fish Density: Simultaneous Experiments In Ponds With Different Fish Assemblages, Clay L. Pierce, Bruce D. Hinrichs

Natural Resource Ecology and Management Publications

We experimentally reduced densities of predatory fish in replicated 2 m2 areas of the littoral zone in two ponds to test whether density and biomass of invertebrates would respond to release from fish predation. The ponds are of similar size and in close proximity, but support different fish assemblages: bluegills (Lepomis macrochirus Rafinesque) and largemouth bass (Micropterus salmoides (Lacepede)) in one pond, and bluespotted sunfish (Enneacanthus gloriosus (Holbrook)) and chain pickerel (Esox niger Lesueur) in the other. Fish densities were reduced to less than 15% of ambient levels in both experiments. In the bluegill–bass pond, density and biomass ...


Evaluation Of Crew Size Limits And Dredge Ring Size Restriction In The Atlantic Sea Scallop Fishery, William D. Dupaul, James E. Kirkley Mar 1997

Evaluation Of Crew Size Limits And Dredge Ring Size Restriction In The Atlantic Sea Scallop Fishery, William D. Dupaul, James E. Kirkley

Reports

No abstract provided.


Status Of The Major Oyster Diseases In Virginia 1996 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson Mar 1997

Status Of The Major Oyster Diseases In Virginia 1996 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson

Reports

No abstract provided.


Marine Resource Bulletin Vol. 29, No. 1 & 2, Virginia Sea Grant, Virginia Institute Of Marine Science Jan 1997

Marine Resource Bulletin Vol. 29, No. 1 & 2, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

Contents

Tunas Atlantic Bluefin Management

Virginia's Offshore Fishing

Wachapreague: Home of Virginia's Oldest Charterboat Fleet Schooling

Temerature, Temperature: The Key to Tuna Storage

State-of-the-Art Tags

Tunas in the Western Atlantic

Recent Publications


Yield-Per-Recruit Analysis And Management Strategies For Atlantic Croaker, Micropogonias Undulatus, In The Middle Atlantic Bight, Luiz R. Barbieri, Mark E. Chittenden, Cynthia M. Jones Jan 1997

Yield-Per-Recruit Analysis And Management Strategies For Atlantic Croaker, Micropogonias Undulatus, In The Middle Atlantic Bight, Luiz R. Barbieri, Mark E. Chittenden, Cynthia M. Jones

OEAS Faculty Publications

The effect of different fishing mortality (F) and natural mortality (M), and age at first capture (t(c)) on yield-per-recruit of Atlantic croaker, Micropogonias undulatus, in the lower Chesapeake Bay and North Carolina were evaluated with the Beverton-Holt model. Independent of the level of M (0.20-0.35) or F (0.01-2.0) used in simulations, yield-per-recruit values for Chesapeake Bay were consistently higher at t((c)) = 1 and decreased continuously with increases in t(c) (2-5). Although maximum yield-per-recruit always occurred at the maximum level off (F=2.0), marginal increases in yield beyond F = 0.50-0.75 were ...


Annual Progress Report, North Central Regional Aquaculture Center Jan 1997

Annual Progress Report, North Central Regional Aquaculture Center

NCRAC Annual Progress Reports

No abstract provided.


Identification Of A Fish Host Of The Inflated Heelsplitter Potamilus Inflatus( Bivalvia: Unionidae) With A Description Of Its Glochidium, Kevin J. Roe, Andrew M. Simons, Paul Hartfield Jan 1997

Identification Of A Fish Host Of The Inflated Heelsplitter Potamilus Inflatus( Bivalvia: Unionidae) With A Description Of Its Glochidium, Kevin J. Roe, Andrew M. Simons, Paul Hartfield

Kevin J. Roe

A survey of the fishes of the lack Warrior River was undertaken to determine fish host(s) of the federally threatened inflated heelsplitter, Potamilus inflatus. Seven hundred-twenty individual fishes representing 30 species were examined; mussel glochidia were found on 10 individual fishes representing nine species. Potamilus inflatus glochidia were only found infesting one freshwater drum (Aplodinotus grunniens), which is concordant with previous findings for the genus Potamilus. The morphology of P. inflatus glochidia is described and compared to P. purpuratus.


World Wide Aquaculture Drug And Vaccine Registration Progress, Rosalie A. Schnick, D. J. Alderman, R. Armstrong, R. Le Gouvello, S. Ishihara, E. C. Lacierda, S. Percival, M. Roth Jan 1997

World Wide Aquaculture Drug And Vaccine Registration Progress, Rosalie A. Schnick, D. J. Alderman, R. Armstrong, R. Le Gouvello, S. Ishihara, E. C. Lacierda, S. Percival, M. Roth

North Central Regional Aquaculture Center Publications and Papers

It is time for world-wide Cupertino to gain approvals of drugs and licensure of biologics for aquaculture. At the Workshop on international Harmonisation for Aquaculture Drugs and Biologics held in February 1997, a start was made toward that goal. One of the five committees set up to help this process was the one to identify priority drugs and vaccines. A Workshop and Round table were held on this topic at the EAFP Eighth International Conference on Diseases of Fish and Shellfish, Edinburgh, Scotland, September 14-19, 1997.


Genealogical Studies Of Selected Australian Barramundi (Lates Calcarifer) Using Mtdna : Implications For Stock Transfer To The Kimberley Region Of Western Australia, Robert G. Doupe Jan 1997

Genealogical Studies Of Selected Australian Barramundi (Lates Calcarifer) Using Mtdna : Implications For Stock Transfer To The Kimberley Region Of Western Australia, Robert G. Doupe

Theses : Honours

This study resulted from concerns for the present and proposed movement of barramundi (Lates catcarifer) across presumed population genetic boundaries into the Kimberley region of Western Australia for net-pen aquaculture and a recreational fishery development in dams no longer available to seasonal barramundi dispersal. Direct DNA sequencing of the non-recombining, maternally inherited mitochondrial genome of barramundi thought to represent wild populations from a broad section of a still wider Australian range were used for phylogenetic reconstructions that support hypotheses for historic gene flow between Kimberley and other populations during Recent sea level fluctuations. Nil or low levels of genetic diversity ...


Predation By Gambusia Holbrooki (Girard) (Pisces Poeciliidae) On Tadpoles : Feeding Trials And Microhabitat Utilisation In Two Contrasting Wetlands On The Swan Coastal Plain, Western Australia, Beate Sommer Jan 1997

Predation By Gambusia Holbrooki (Girard) (Pisces Poeciliidae) On Tadpoles : Feeding Trials And Microhabitat Utilisation In Two Contrasting Wetlands On The Swan Coastal Plain, Western Australia, Beate Sommer

Theses : Honours

Predation by non-native Gambusia spp. (somewhat inappropriately referred to as “Mosquitofish”) has been implicated in the decline of some frog populations overseas and in eastern Australia. Originally introduced to control mosquito larvae, Gambusia holbrooki are now widely distributed and abundant in wetlands of the Swan Coastal Plain (Western Australia). Anecdotal evidence suggests that some frog populations on the Swan Coastal Plain may be declining. Through a series of laboratory feeding trials and a field survey conducted in a permanent and a seasonal wetland on the Swan Coastal Plain, this study investigated whether predation by G. holbrooki has the potential to ...


Native Habitats Of The Twin Cities Area, Craig A. Faanes Jan 1997

Native Habitats Of The Twin Cities Area, Craig A. Faanes

US Fish & Wildlife Publications

European settlers and their descendants have left an indelible mark on the landscape of most of the Nation, especially near major population centers. Responding to the dramatic changes in landscape, conservation biologists find themselves scurrying to save a bit of the once bountiful diversity. But before steps can be taken to protect remaining resources, a thorough inventory of the land and its resources is required.


Nesting Piping Plover And Least Tern On The Kansas River, William H. Busby, Daniel W. Mulhern, P. Gregory Kramos, David A. Rintoul, William C. Tuttle Jan 1997

Nesting Piping Plover And Least Tern On The Kansas River, William H. Busby, Daniel W. Mulhern, P. Gregory Kramos, David A. Rintoul, William C. Tuttle

US Fish & Wildlife Publications

A portion of the Kansas River in northeastern Kansas was surveyed by boat and air in 1996 and 1997 for nesting colonies of piping plover (Charadrius melodus) and least tern (Sterna antillarum). Both species were found breeding on sandbars at a total of five sites along a 30-km reach of the Kansas River. In 1996, at least two breeding pair of piping plovers and seven breeding pair of least terns were documented. In 1997, at least one pair of piping plovers and five pairs of least terns bred. These are the first known breeding records for the piping plover in ...


Neotropical Migratory Birds, Stephanie L. Jones Jan 1997

Neotropical Migratory Birds, Stephanie L. Jones

US Fish & Wildlife Publications

This book is a follow-up synthesis to a meeting held in Estes Park, Colorado, in 1992, by Partners in Flight - Aves de Americas. An earlier volume, edited by Finch and P. W. Stangel (USDA Forest Service General Technical Report RM-229, 1993) included most of the papers presented at that meeting. This book is a carefully edited synthesis of some of the issues that arose from an increased interest in neotropical migratory birds. As with most ...


Arsenic, Mercury, Selenium, And Organochlorine Compounds In Interior Least Tern Eggs In The Northern Great Plains States, 1992-1994, George T. Allen, Susan Humphreys Blackford Jan 1997

Arsenic, Mercury, Selenium, And Organochlorine Compounds In Interior Least Tern Eggs In The Northern Great Plains States, 1992-1994, George T. Allen, Susan Humphreys Blackford

US Fish & Wildlife Publications

The purpose of this study was to evaluate concentrations of arsenic, mercury, selenium, and chlorinated hydrocarbon compounds in interior least tern eggs from the northern Great Plains states from 1992 through 1994. The Environmental Contaminants Specialists in Kansas, Nebraska, South Dakota, North Dakota, and Montana agreed on a standard protocol for collection and analyses of eggs during the study period.

Addled, fiooded, or abandoned eggs collected during the study period were submitted for chemical analysis by the Environmental Contaminants Specialist in each state.

A total of 104 eggs were analyzed for arsenic, mercury, and selenium; 78 of them also were ...