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Articles 1 - 30 of 42
Full-Text Articles in Entire DC Network
History And Current Status: James River Navigation Project, William J. Hargis Jr.
History And Current Status: James River Navigation Project, William J. Hargis Jr.
Reports
The purposes of this report are: 1) to briefly recount the history of the James River Channel, or more properly--the James River Navigation Project; and, 2) to discuss the present situation pertaining to proposed changes in the river bed or channel in the critical estuarine area located between Hampton Roads and Jamestown Island.
The Blue Crab And Its Fishery In Chesapeake Bay Part 2 - Types Of Gear For Hard Crab Fishing, W. A. Van Engel
The Blue Crab And Its Fishery In Chesapeake Bay Part 2 - Types Of Gear For Hard Crab Fishing, W. A. Van Engel
VIMS Articles
During the 90-year history of the Chesapeake Bay blue crab fishery, many types of fishing devices were tried, but only pots, trotlines, and dredges proved suitable, and they emerged as the primary types of gear for catchfng hard crabs. In the early years of the fishery, trotlines with their various modifications were used princip~lly for catching hard crabs in the summer. The Chesapeake Bay crab pot, patented in 1938 and modified only slightly since, gradually replaced the trotline. Pots now account for two-thirds of the Virginia hard crab catch and more than half of the Maryland catch, The dredge, first …
Respiration, Electron-Transport Enzymes, And Krebs-Cycle Enzymes In Early Developmental Stages Of The Oyster Crassostrea Virginica, Robert E. Black
Respiration, Electron-Transport Enzymes, And Krebs-Cycle Enzymes In Early Developmental Stages Of The Oyster Crassostrea Virginica, Robert E. Black
VIMS Articles
A marked increase in the rate of respiration during early development has been noted in many different organisms (see Brachet, 1950 ; Boell, 1955). In most cases the changes in respiratory enzymes which might contribute to the respiratory increases have not been fully studied. Of particular interest in this connection are studies which have dealt with enzymes of the tricarboxylic acid (citric acid) cycle, as well as those investigations of the enzymes involved in the transfer of electrons between substrates and oxygen, via the systems which oxidize reduced pyridine nucleotides and succinic acid.
The Concentrations Of Some Enzymes Of The Citric Acid Cycle And Electron Transport System In The Large Granule Graction Of Eggs And Trochophores Of The Oyster, Crassostrea Virginica, Robert E. Black
VIMS Articles
In an accompanying report Black (1962) has shown that considerable changes in the relative activities of several enzymes of the tricarboxylic acid cycle occur during early development of the oyster. Thus, between the blastula and trochophore stages two enzymes, TPN-specific isocitric dehydrogenase and aipha-keto glutaric dehydrogenase, increase 2- to 3-fold, roughly paralleling the increase in respiration during this same period. Five other enzymes were found not to change appreciably during development to the trochophore. These were: aconitase, succinic dehydrogenase, malic dehydrogenase, DPNH oxidase, and cytochrome oxi dase. Following the trochophore stage cytochrome oxidase decreased somewhat in activity, while the other …
Current Knowledge On The Hydrography And Biology Of The Estuarine Portion Of James River, William J. Hargis Jr.
Current Knowledge On The Hydrography And Biology Of The Estuarine Portion Of James River, William J. Hargis Jr.
Reports
No abstract provided.
Oyster Mortality Studies In Virginia: Ill. Epizootiology Of A Disease Caused By Haplosporidium Costale Wood And Andrews, Jay D. Andrews, John L. Wood, H. Dickson Hoese
Oyster Mortality Studies In Virginia: Ill. Epizootiology Of A Disease Caused By Haplosporidium Costale Wood And Andrews, Jay D. Andrews, John L. Wood, H. Dickson Hoese
VIMS Articles
A short, sharp eplzootic disease of oysters on Seaside of Eastern Shore, Virginia, has been associated with a new pathogen, Haplosporidium costale Wood and Andrews. Native oysters in trays have shown closely timed May-June losses for three consecutive years. Losses at other seasons were small. May-June losses ranged from 12 to 14 percent in 1959 to 36 to 44 percent in 1960. James River oysters moved to Seaside showed higher losses than natives after a year of acclimation. Oysters in Bayside creeks revealed late summer losses caused by Dermocystidimn marinmn Mackin, Owens, and Collier rather than May-June deaths.
The new …
Chaetognatha From The Florida Current And Coastal Water Of The Southeastern Atlantic States, E.Lowe Pierce, Marvin L. Wass
Chaetognatha From The Florida Current And Coastal Water Of The Southeastern Atlantic States, E.Lowe Pierce, Marvin L. Wass
VIMS Articles
This paper reports the Chaetognatha in plankton samples collected in the waters off the coast of the southeastern Atlantic States during nine cruises of the U. S. Fish and Wildlife Service's M/V Theodore N. Gill. From a total of 590 samples examined 12 species representing 3 genera are identified. The results show the distribution of chaetognaths to be very uniform paralleling the coast in a north-south direction. There are no apparent seasonal changes in the distribution of the species. Across the continental shelf and Florida Current they decreased noticeably in abundance. The inshore stations usually have two to five times …
Synoptic Comparison Of Seston Loads In The Rappahannock, York And James Rivers, Bernard C. Patten
Synoptic Comparison Of Seston Loads In The Rappahannock, York And James Rivers, Bernard C. Patten
Reports
This report summarizes data obtained during summer, 1962 on suspended solids profiles at Hog House Bar (Rappahannock, directly out from Urbanna Creek to 30 ft depth), the productivity buoy (York, 30 ft) and Wreck Shoal (James, adjacent to buoy 12 at edge of channel, 30 ft). Water samples obtained the same day from the three stations at s, 2 (ft), 61 10, 14, 18, 22, 26, B were analyzed for total, organic and inorganic seston by the gravimetric procedure described in VIMS Special Scientific Report No. 20 (1961). Temperature, chlorinity and extinction coefficient profiles were recorded, as well as Sand …
Winter Mortalities Of Oysters On The Eastern Shore Of Virginia, 1959-1961, H. Dickson Hoese
Winter Mortalities Of Oysters On The Eastern Shore Of Virginia, 1959-1961, H. Dickson Hoese
Reports
During the winter of 1960-61 exceptional mortalities occurred among certain oysters on the Virginia Seaside. These mortalities were greatest among James River oysters held intertidally and South Carolina imports placed below low tide level. Intertidal native oysters suffered small mortalities but among subtidal native or James River oysters only the very oldest, with extensive disease histories, showed any winter mortality. (...)
Water Temperatures, Salinities, And Fishes Collected During Trawl Surveys Of Chesapeake Bay And York And Pamunkey Rivers, 1956-1959, William Henry Massmann, Virginia Institute Of Marine Science
Water Temperatures, Salinities, And Fishes Collected During Trawl Surveys Of Chesapeake Bay And York And Pamunkey Rivers, 1956-1959, William Henry Massmann, Virginia Institute Of Marine Science
Reports
No abstract provided.
Data On Coastal Currents Off Chesapeake Bay, J. J. Norcross, William Henry Massmann, Edwin B. Joseph
Data On Coastal Currents Off Chesapeake Bay, J. J. Norcross, William Henry Massmann, Edwin B. Joseph
Reports
No abstract provided.
Marine Algae Of Virginia As A Source Of Agar And Agaroids, Harold J. Humm, Virginia Institute Of Marine Science
Marine Algae Of Virginia As A Source Of Agar And Agaroids, Harold J. Humm, Virginia Institute Of Marine Science
Reports
No abstract provided.
Dark And Light Bottle Studies In The Lower Chesapeake Region, Summer 1961, Bernard C. Patten, D. K. Young, Weston Eayrs, Morris H. Roberts, Bert Shapiro, Virginia Institute Of Marine Science
Dark And Light Bottle Studies In The Lower Chesapeake Region, Summer 1961, Bernard C. Patten, D. K. Young, Weston Eayrs, Morris H. Roberts, Bert Shapiro, Virginia Institute Of Marine Science
Reports
No abstract provided.
Diatoms From Virginia Tidal Waters, 1960 And 1961, Richard A. Mulford, Virginia Institute Of Marine Science
Diatoms From Virginia Tidal Waters, 1960 And 1961, Richard A. Mulford, Virginia Institute Of Marine Science
Reports
No abstract provided.
Fishes And Fish Larvae Collected From Atlantic Plankton Cruises Of R/V Pathfinder, March 1961 - March 1962, William Henry Massmann, Edwin B. Joseph, J. J. Norcross, Virginia Institute Of Marine Science
Fishes And Fish Larvae Collected From Atlantic Plankton Cruises Of R/V Pathfinder, March 1961 - March 1962, William Henry Massmann, Edwin B. Joseph, J. J. Norcross, Virginia Institute Of Marine Science
Reports
No abstract provided.
Industrial Or Scrap-Fish Catch From Pound Nets In Lower Chesapeake Bay - 1960, Edwin B. Joseph, Virginia Institute Of Marine Science
Industrial Or Scrap-Fish Catch From Pound Nets In Lower Chesapeake Bay - 1960, Edwin B. Joseph, Virginia Institute Of Marine Science
Reports
No abstract provided.
Bibliographic Data Useful In The Study Of Marine Algae, Harold J. Humm, Virginia Institute Of Marine Science
Bibliographic Data Useful In The Study Of Marine Algae, Harold J. Humm, Virginia Institute Of Marine Science
Reports
No abstract provided.
Chemistry Of Chesapeake Bay Sediments, David Kenneth Young
Chemistry Of Chesapeake Bay Sediments, David Kenneth Young
Dissertations, Theses, and Masters Projects
No abstract provided.
Vhf Oscillations In A Penning Gauge, Robert Newman Dennis
Vhf Oscillations In A Penning Gauge, Robert Newman Dennis
Dissertations, Theses, and Masters Projects
No abstract provided.
The Aquatic Phycomycetous Flora Of Marine And Brackish Waters In The Vicinity Of Gloucester Point, Virginia, William W. Scott, Virginia Institute Of Marine Science
The Aquatic Phycomycetous Flora Of Marine And Brackish Waters In The Vicinity Of Gloucester Point, Virginia, William W. Scott, Virginia Institute Of Marine Science
Reports
No abstract provided.
Phytoplankton Diversity In The Lower York River, Virginia, June 1960 -June 1961, Bernard C. Patten, Virginia Institute Of Marine Science
Phytoplankton Diversity In The Lower York River, Virginia, June 1960 -June 1961, Bernard C. Patten, Virginia Institute Of Marine Science
Reports
No abstract provided.
The Chaetognatha Of The Inner Continental Shelf Waters Off Virginia, Their Taxonomy, Abundance, And Dependence On Physical Factors Of The Environment, George Clifford Grant
The Chaetognatha Of The Inner Continental Shelf Waters Off Virginia, Their Taxonomy, Abundance, And Dependence On Physical Factors Of The Environment, George Clifford Grant
Dissertations, Theses, and Masters Projects
No abstract provided.
Key To The Genera Of Marine Bluegreen Algae Of Southeastern North America, Harold J. Humm
Key To The Genera Of Marine Bluegreen Algae Of Southeastern North America, Harold J. Humm
Reports
No abstract provided.
Studies On Osmotic And Ionic Regulation In The Blue Crab, Callinectes Sapidus Rathbun, Eng-Chow Tan
Studies On Osmotic And Ionic Regulation In The Blue Crab, Callinectes Sapidus Rathbun, Eng-Chow Tan
Dissertations, Theses, and Masters Projects
No abstract provided.
Bibliography Of The Physical, Chemical, And Geological Oceanography Of Chesapeake Bay, Maynard M. Nichols, Virginia Institute Of Marine Science
Bibliography Of The Physical, Chemical, And Geological Oceanography Of Chesapeake Bay, Maynard M. Nichols, Virginia Institute Of Marine Science
Reports
No abstract provided.
Gear Data Report From Atlantic Plankton Cruises For The R/V Pathfinder, March 1961 - March 1962, Woodrow L. Wilson, Virginia Institute Of Marine Science
Gear Data Report From Atlantic Plankton Cruises For The R/V Pathfinder, March 1961 - March 1962, Woodrow L. Wilson, Virginia Institute Of Marine Science
Reports
No abstract provided.
Evidence Of A Naturally Occurring Inhibitor Possibly Limiting Dermocystidium Marinum In Virginia, H. Dickson Hoese
Evidence Of A Naturally Occurring Inhibitor Possibly Limiting Dermocystidium Marinum In Virginia, H. Dickson Hoese
Reports
Dermocystidium marinum, a fungus parasite common in oysters on the eastern shore of Chesapeake Bay, suddenly dissapeared at the beginning of the marsh and bay system of' the outer Virginia coast. No D. marinum was found on the outer coast (Seaside) although temperatures and salinities seem to be optimal. Introduction of populations of infected oysters seem to lose the dieease, but individuals do not. What seems to be a water derived inhibitor was found in a few water samples collected at Wachapreague on the Seaside. Comparable inhibition was not found in Chesapeake Bay water. The inhibitor is difficult to demonstrate …
Angular Distribution Of Satellite Scintillation, Joseph Kunkle Alexander
Angular Distribution Of Satellite Scintillation, Joseph Kunkle Alexander
Dissertations, Theses, and Masters Projects
No abstract provided.
The Republicans, 1800-1804: A Study In Political Consistency, Susan Anne Torbit
The Republicans, 1800-1804: A Study In Political Consistency, Susan Anne Torbit
Dissertations, Theses, and Masters Projects
No abstract provided.
Robert Carter Letterbook, 1764-1768, Robert Carter
Robert Carter Letterbook, 1764-1768, Robert Carter
Dissertations, Theses, and Masters Projects
No abstract provided.