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Full-Text Articles in Aquaculture and Fisheries
The Status Of Virginia’S Public Oyster Resource 2020, Melissa Southworth, Roger L. Mann
The Status Of Virginia’S Public Oyster Resource 2020, Melissa Southworth, Roger L. Mann
Reports
The Virginia Institute of Marine Science (VIMS) monitors recruitment of the Eastern oyster, Crassostrea virginica (Gmelin, 1791), annually from late spring through early fall, by deploying spatfall[1] (settlement and recruitment of larval oysters to the post metamorphic form termed spat) collectors (shellstrings) at various sites in three Virginia western Chesapeake Bay tributaries. The survey provides an estimate of a particular area’s potential for receiving a "strike" or settlement (set) of oysters on the bottom and helps describe the timing of recruitment events in a given year. Information obtained from this monitoring effort provides an overview of long-term recruitment …
The Status Of Virginia's Public Oyster Resource 2016, Melissa Southworth, Roger L. Mann
The Status Of Virginia's Public Oyster Resource 2016, Melissa Southworth, Roger L. Mann
Reports
This report summarizes data collected during 2016 in the Virginia portion of the Chesapeake Bay. The report is composed of two parts, part one, oyster recruitment (shell string) in Virginia and part two, dredge survey of selected oyster bars in Virginia.
The Status Of Virginia's Public Oyster Resource 2015, Melissa Southworth, Roger L. Mann
The Status Of Virginia's Public Oyster Resource 2015, Melissa Southworth, Roger L. Mann
Reports
This report summarizes data collected during 2015 in the Virginia portion of the Chesapeake Bay. The report is composed of two parts, part one, oyster recruitment (shell string) in Virginia and part two, dredge survey of selected oyster bars in Virginia.
Public Oyster Shoal Survey - Spring 1992, Bruce J. Barber
Public Oyster Shoal Survey - Spring 1992, Bruce J. Barber
Reports
Oysters have been harvested from Virginia waters as long as humans have inhabited the area. Depletion of natural stocks in the late 1880's led to the establishment of regulations by public fisheries agencies. A survey of bottom areas in which oysters grew naturally was completed in 1896 under the direction of Lt. Baylor, USN. These areas (over 243,000 acres) were set aside by legislative action for public use and have come to be known as the Baylor Survey Grounds or Public Oyster Grounds of Virginia, and are presently administered by VMRC, the Virginia Marine Resources Commission (Haven et al., 1978). …
Oyster Spatfall In Virginia Waters: 1991 Annual Summary, Bruce J. Barber
Oyster Spatfall In Virginia Waters: 1991 Annual Summary, Bruce J. Barber
Reports
The Virginia Institute of Marine Science (VIMS) conducts surveys of oyster 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 …
Oyster Spatfall In Virginia Waters: 1990 Annual Summary, Bruce J. Barber
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 …
Oyster Spatfall In Virginia Rivers: 1989 Annual Summary, Bruce J. Barber
Oyster Spatfall In Virginia Rivers: 1989 Annual Summary, Bruce J. Barber
Reports
The Virginia Institute of Marine Science (VIMS) conducts surveys of oyster 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 11 or set of oysters on the bottom and helps define the timing of setting events. Information obtained by this effort is valuable to the Virginia Marine Resources Commission (VMRC) for its shell repletion program, and to private oyster growers, both of whom are interested in maximizing the timing of shell planting. To assist in that area, a biweekly report of spatfall …
Oyster Spatfall In Virginia Rivers: 1988 Annual Summary, Bruce Barber, James Whitcomb
Oyster Spatfall In Virginia Rivers: 1988 Annual Summary, Bruce Barber, James Whitcomb
Reports
The Virginia Institute of Marine Science (VIMS) conducts annual surveys of oyster spatfall ( or "sett.ing") in Virginia waters. This survey provides an estimate of the potential of a particular area for receiving a "striken or set of oysters and helps define the timiug of setting events. In 1988 spatfall was monitored from June 6 to October 16 at a total of forty-two stations (Figure 1). · During this period shellstrings were deployed at each station (0.5m off the bottom) on a weekly basis. A shellstring consists of 12 oyster shells drilled through the center and strung on a piece …
Oyster Spatfall In Virginia Rivers: 1987 Annual Summary, James Whitcomb
Oyster Spatfall In Virginia Rivers: 1987 Annual Summary, James Whitcomb
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made on oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells is counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur.
Oyster Spatfall In Virginia Rivers: 1986 Annual Summary, James Whitcomb
Oyster Spatfall In Virginia Rivers: 1986 Annual Summary, James Whitcomb
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made on oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells is counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur.
Oyster Spatfall In Virginia Rivers: 1985 Annual Survey, James Whitcomb
Oyster Spatfall In Virginia Rivers: 1985 Annual Survey, James Whitcomb
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made on oyster shells strung qn wire and suspended from stakes on public and private beds. The number of spat on shells is counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur.
Oyster Spatfall In Virginia Rivers: 1984 Annual Summary, James Whitcomb
Oyster Spatfall In Virginia Rivers: 1984 Annual Summary, James Whitcomb
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made on oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells is counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur.
Oyster Spatfall In Virginia Rivers: 1983 Annual Summary, James Whitcomb
Oyster Spatfall In Virginia Rivers: 1983 Annual Summary, James Whitcomb
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made on oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells are counted each week of ~:he spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period tile strikes will occur. A moderate or heavy strike on shellstrings usually indicates a significant strike on exposed bottom clutch. This is especially true for clutch planted a …
Oyster Spatfall In Virginia Rivers: 1982 Annual Summary, Dexter S. Haven, James Whitcomb
Oyster Spatfall In Virginia Rivers: 1982 Annual Summary, Dexter S. Haven, James Whitcomb
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made from oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells are counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur.
Oyster Spatfall In Virginia Rivers: 1981 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall In Virginia Rivers: 1981 Annual Summary, Dexter S. Haven, Paul C. Kendall
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oystet spatfall information, Spat counts are made from oyster shells strung on wire and suspended from stakes on public and private beds, The number of spat on shells are counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur.
Oyster Spatfall In Virginia Rivers: 1980 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall In Virginia Rivers: 1980 Annual Summary, Dexter S. Haven, Paul C. Kendall
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made from oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells are counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur. Shells planted just before the period of maximum set have the best chance of getting a good strike.
Oyster Spatfall On Shellstrings In Virginia Rivers: 1978 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall On Shellstrings In Virginia Rivers: 1978 Annual Summary, Dexter S. Haven, Paul C. Kendall
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made from oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells are counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur. Shells planted just before the period of maximum set have the best chance of getting a good strike.
Oyster Spatfall In Virginia Rivers: 1979 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall In Virginia Rivers: 1979 Annual Summary, Dexter S. Haven, Paul C. Kendall
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through·early October to obtain oyster spatfall information. Spat counts are made from oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells are counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur. Shells planted just before the period of maximum set have the best chance of getting a good strike.
Oyster Spatfall On Shellstrings In Virginia Rivers: 1977 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall On Shellstrings In Virginia Rivers: 1977 Annual Summary, Dexter S. Haven, Paul C. Kendall
Reports
No abstract provided.
Oyster Spatfall On Shellstrings In Virginia Rivers: 1976 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall On Shellstrings In Virginia Rivers: 1976 Annual Summary, Dexter S. Haven, Paul C. Kendall
Reports
The Virginia Institute of M3rine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made from oyster shells strung on wire and suspended from stakes on public and private beds. The number of spat on shells are counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur, Shells planted just before the period of maximum set have the best chance of getting a good strike,
Oyster Spatfall On Shellstrings In Virginia Rivers: 1975 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall On Shellstrings In Virginia Rivers: 1975 Annual Summary, Dexter S. Haven, Paul C. Kendall
Reports
The Virginia Institute of Marine Science (VIMS) conducts weekly surveys from June through early October to obtain oyster spatfall information. Spat counts are made from oyster shells strung on wire and · suspended from stakes on public and private beds. The number of spat on shells are counted each week of the spawning season to determine the potential of a particular area for receiving a strike and to predict the most likely period the strikes will occur. Shells .planted just before the period of maximum set have the best chance of getting a good strike.
Oyster Spatfall On Shellstrings In Virginia Rivers: 1974 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall On Shellstrings In Virginia Rivers: 1974 Annual Summary, Dexter S. Haven, Paul C. Kendall
Reports
Oyster setting levels in m9st Virginia river systems are still far below those which commonly occurred prior to 1960. However, the 1974 season showed continuing improvement since 1972 when Tropical Storm Agnes raged through the Chesapeake Bay region, creating adverse environmental conditions which were largely responsible for the lowest setting levels on record. Data for 1973, as well as for 1971 and 1972 are included in this summary for comparison with the 1974 setting season. Setting information is obtained through surveys conducted weekly by the Virginia Institute of Marine Science (VIMS) from June through early October, with assistance of personnel …
Oyster Spatfall On Shellstrings In Virginia Rivers: 1973 Annual Summary, Dexter S. Haven, Paul C. Kendall
Oyster Spatfall On Shellstrings In Virginia Rivers: 1973 Annual Summary, Dexter S. Haven, Paul C. Kendall
Reports
Although oyster setting levels in most Virginia river systems are still far below trose whicb commonly occurred prior to 1960, the 1973 season marked an improvement over the previous year when Tropical Storm Agnes raged througb the Chesapeake Bay region, creating adverse environmental conditions which were largely responsible_ for the_ lowest s},tting levels on record, Data for 1972,
Oyster Spatfall On Shellstrings In Virginia Rivers: 1972 Annual Summary, Virginia Institute Of Marine Science
Oyster Spatfall On Shellstrings In Virginia Rivers: 1972 Annual Summary, Virginia Institute Of Marine Science
Reports
Oyster setting in Virginia river systems dipped to the lowest levels on record during 1972, according to scientists at the Virginia Institute of Marine Science who regularly monitor oyster grounds for set. A heavy set occurred on the seaside of Virginia's Eastern Shore and limited setting was observed in tributary rivers of the Mobjack Bay, but elsewhere the number of oysters setting on shellstrings and on the bottom in lower Chesapeake Bay in 1972 was far lower than for the previous year, and the lowest overall set ever recorded.
Oyster Spatfall On Shellstrings In Virginia Rivers: 1970 Annual Summary, Dexter S. Haven
Oyster Spatfall On Shellstrings In Virginia Rivers: 1970 Annual Summary, Dexter S. Haven
Reports
The Applied Biology Department in the VIMS Division of Applied Marine Science and Ocean Engineering conducts. weekly surveys of oyster "setting" in Virginia rivers from the end of May through early October each year. Starting at the mouth of each river and proceeding upstream to the limits of oyster setting, the collecting areas a.re established on public and private beds. Spat counts are obtained from oyster shells strung on wire and suspended from stakes. The number of spat which set in one week on the smooth side of ea.ch shell on the string are tabulated.