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Full-Text Articles in Aquaculture and Fisheries
Monitoring Relative Abundance Of American Shad In Virginia’S Rivers 2001 Annual Report, John E. Olney, Kristin L. Maki
Monitoring Relative Abundance Of American Shad In Virginia’S Rivers 2001 Annual Report, John E. Olney, Kristin L. Maki
Reports
Concern about the decline in landings of American shad (Alosa sapidissima) along the Atlantic coast prompted the development of an interstate fisheries management plan (FMP) under the auspices of the Atlantic States Marine Fisheries Management Program (ASMFC 1999). Legislation enables imposition of federal sanctions on fishing in those states that fail to comply with the FMP. To be in compliance, coastal states are required to implement and maintain fishery-dependent and fishery-independent monitoring programs as specified by the FMP. For Virginia, these requirements include spawning stock assessments, the collection of biological data on the spawning run (e.g., age-structure, sex ratio, spawning …
Status Of The Major Oyster Diseases In Virginia 2001 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 2001 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Reports
Thirty-nine oyster populations were surveyed for disease in fall 2001. Perkinsus marinus was found in all areas sampled and prevalence exceeded 90% at all but 5 sample locations. In the James River P. marinus prevalence ranged from 88-100% at Deepwater Shoal, Horsehead Rock, Point of Shoals, Wreck Shoal, Mulberry Point, Swash, Long Shoal, and Dry Shoal. A lower prevalence was observed down river at Thomas Rock, 72%, and at Nansemond Ridge, 12%. The extremely low prevalence at Nansemond Ridge is likely age and density related; the oyster population was primarily comprised of spat; few small to market oysters were present …
Status Of The Major Oyster Diseases In Virginia 2000 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 2000 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Reports
As a consequence of the relatively warm temperatures, high salinities, and high oyster parasite abundances in the fall of 1999, both P. marinus and H. nelsoni were widely distributed throughout oyster populations in Virginia in 2000. Fortunately, however, we did not see severe epizootics of the diseases as observed in some areas in 1999.
Monitoring Relative Abundance Of American Shad In Virginia’S Rivers 2000 Annual Report, John E. Olney, John M. Hoenig
Monitoring Relative Abundance Of American Shad In Virginia’S Rivers 2000 Annual Report, John E. Olney, John M. Hoenig
Reports
Since the moratorium, there have been no monitoring programs that provided direct assessment of stock recovery until this project began in 1998. The ban on in-river fishing in Virginia remained in effect, creating a dilemma for managers who needed reliable information in order to make a rational decision on when the in-river ban could safely be lifted. To address this deficiency, we proposed a method of scientific monitoring to estimate catch rates relative to those recorded before the prohibition of in-river fishing in 1994. This monitoring program began in 1998 and consisted of sampling techniques and locations that were consistent …
Monitoring Relative Abundance Of American Shad In Virginia's Rivers Annual Report 1999, John E. Olney Sr., John M. Hoenig
Monitoring Relative Abundance Of American Shad In Virginia's Rivers Annual Report 1999, John E. Olney Sr., John M. Hoenig
Reports
A moratorium on the taking of American shad (Alosa sapidissima) in the Chesapeake Bay and its tributaries was established by the Virginia Marine Resources Commission (VMRC) beginning 1 January 1994. The prohibition applied to both recreational and commercial fishers. The moratorium was imposed at a time when commercial catch rates of American shad in Virginia's rivers were experiencing declines. Data from the commercial fishery were the best available for assessing the status of individual stocks. Catch-per-unit-effort (CPUE) data were compiled from logbooks that recorded landings by commercial fishermen using staked gill nets at various locations throughout the middle reaches of …
Economic Aspects Of Allocating Striped Bass Among Competing User Groups In Virginia, James Kirkley, Kenneth E. Mcconnell, Winnie Ryan
Economic Aspects Of Allocating Striped Bass Among Competing User Groups In Virginia, James Kirkley, Kenneth E. Mcconnell, Winnie Ryan
Reports
No abstract provided.
Status Of The Major Oyster Diseases In Virginia 1999 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1999 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Reports
As a consequence of the relatively warm temperatures and high salinities severe epizootics of both H. nelsoni and P. marinus occurred in most tributaries in VA. In the upper James River, VA prevalences and intensities of P. marinus were the highest on record. The proportion of advanced infections (moderate and heavy intensity) in October was 60% at Wreck Shoal and 48% at Horsehead Rock suggesting that significant oyster mortalities occurred in these areas. 1 Record high levels of P. marinus were also observed in Virginia's other major tributaries. Of the 39 bay oyster populations surveyed in the fall, P. marinus …
Monitoring Relative Abundance Of American Shad In Virginia's Rivers Annual Report 1998, John E. Olney, John Hoenig
Monitoring Relative Abundance Of American Shad In Virginia's Rivers Annual Report 1998, John E. Olney, John Hoenig
Reports
A moratorium on the taking of American shad in the Chesapeake Bay and its tributaries was established by the Virginia Marine Resources Commission (VMRC) beginning 1 January 1994. The prohibition applied to both recreational and commercial fishers. The moratorium was imposed at a time when commercial catch rates of American shad in Virginia's rivers were experiencing declines. Data from the commercial fishery were the best available for assessing the status of individual stocks. Catch-per-unit-effort (CPUE) data were compiled from logbooks that recorded landings by commercial fishermen using staked gill nets at various locations throughout the middle reaches of the three …
Status Of The Major Oyster Diseases In Virginia 1998 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1998 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Reports
No abstract provided.
Status Of The Major Oyster Diseases In Virginia 1997 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1997 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
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
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.
Reform Of The Endangered Species Act: Overview Of Administrative Reforms [Congressional Hearing Material Submitted By Bruce E. Babbitt, Secretary, Department Of Interior], Dinah Bear
Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12)
31 pages.
Status Of The Major Oyster Diseases In Virginia 1995 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1995 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Reports
No abstract provided.
Status Of The Major Oyster Diseases In Virginia 1994 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1994 A Summary Of The Annual Monitoring Program, Lisa M. Ragone Calvo, Eugene M. Burreson
Reports
No abstract provided.
Status Of The Major Oyster Diseases In Virginia 1993 A Summary Of The Annual Monitoring Program, Eugene M. Burreson, Lisa M. Ragone Calvo
Status Of The Major Oyster Diseases In Virginia 1993 A Summary Of The Annual Monitoring Program, Eugene M. Burreson, Lisa M. Ragone Calvo
Reports
No abstract provided.
Status Of The Major Oyster Diseases In Virginia 1992 A Summary Of The Annual Monitoring Program, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1992 A Summary Of The Annual Monitoring Program, Eugene M. Burreson
Reports
No abstract provided.
Status Of The Major Oyster Diseases In Virginia 1991 A Summary Of The Annual Monitoring Program, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1991 A Summary Of The Annual Monitoring Program, Eugene M. Burreson
Reports
No abstract provided.
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.
Status Of The Major Oyster Diseases In Virginia 1989 A Summary Of The Annual Monitoring Program, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia 1989 A Summary Of The Annual Monitoring Program, Eugene M. Burreson
Reports
No abstract provided.
Prevalence Of The Major Oyster Diseases In Virginia Waters 1988 A Summary Of The Annual Monitoring Program., Eugene M. Burreson
Prevalence Of The Major Oyster Diseases In Virginia Waters 1988 A Summary Of The Annual Monitoring Program., Eugene M. Burreson
Reports
No abstract provided.
Status Of The Major Oyster Diseases In Virginia, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia, Eugene M. Burreson
Reports
No abstract provided.
Status Of The Major Oyster Diseases In Virginia, Eugene M. Burreson
Status Of The Major Oyster Diseases In Virginia, Eugene M. Burreson
Reports
No abstract provided.