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Articles 1 - 15 of 15

Full-Text Articles in Life Sciences

Ecosystem Process Modeling Of Submerged Aquatic Vegetation In The Lower Chesapeake Bay, R. L. Wetzel, M. B. Meyers Dec 1994

Ecosystem Process Modeling Of Submerged Aquatic Vegetation In The Lower Chesapeake Bay, R. L. Wetzel, M. B. Meyers

Reports

No abstract provided.


Distribution Of Submerged Aquatic Vegetation In The Chesapeake Bay And Tributaries And Chincoteague Bay - 1993, Robert J. Orth, Judith F. Nowak, Gary F. Anderson, Jennifer R. Whiting Dec 1994

Distribution Of Submerged Aquatic Vegetation In The Chesapeake Bay And Tributaries And Chincoteague Bay - 1993, Robert J. Orth, Judith F. Nowak, Gary F. Anderson, Jennifer R. Whiting

Reports

No abstract provided.


A Pc-Based Tidal Prism Water Quality Model For Small Coastal Basins And Tidal Creeks, Albert Y. Kuo, Kyeong Park Sep 1994

A Pc-Based Tidal Prism Water Quality Model For Small Coastal Basins And Tidal Creeks, Albert Y. Kuo, Kyeong Park

Reports

No abstract provided.


Trends In The Distribution, Abundance, And Habitat Quality Of Submerged Aquatic Vegetation In Chesapeake Bay And Its Tidal Tributaries: 1971 To 1991, Robert J. Orth, Richard A. Batiuk, Judith F. Nowak Apr 1994

Trends In The Distribution, Abundance, And Habitat Quality Of Submerged Aquatic Vegetation In Chesapeake Bay And Its Tidal Tributaries: 1971 To 1991, Robert J. Orth, Richard A. Batiuk, Judith F. Nowak

Reports

This report builds on two decades of aerial and ground survey SA V distribution data, as well as development of SA V habitat requirements, establishment of SAV restoration goals and targets, compilation of historical water quality data, and implementation of a baywide monitoring program. The objectives of this report are to:

• describe trends in SAV distribution and abundance in Chesapeake Bay and its tidaf tributaries from 1 971 to 1991 ;

• relate SAV distribution over time with tiered distribution restoration goals and targets;

• compare trends in SAV distribution with corresponding trends in water quality; and • correlate …


Evaluation Of Seismic Sources For Repelling Sea Turtles From Hopper Dredges, Virginia Institute Of Marine Science, John A. Musick, John A. Keinath, Et Al Jan 1994

Evaluation Of Seismic Sources For Repelling Sea Turtles From Hopper Dredges, Virginia Institute Of Marine Science, John A. Musick, John A. Keinath, Et Al

Reports

Hopper dredges are an effective way to both widen and deepen channels to accommodate deep draft shipping traffic. These dredging operations are required to comply with the Endangered Species Act of 1973 (Dickerson et al., 1991, Studt, 1985). It has been found that sea turtles can be entrained and killed during normal dredging operations. The five species of sea turtles that occur in the southeastern united states which may be harmed by dredging operations are the loggerhead (Caretta caretta), the green (Chelonia mydas), the Kemp's ridley (Lenidochelys kemnii) , the hawksbill (Eretomochelys imbricata) , and the leatherback (Qermochelys coriacea). Because …


Life Cycle Studies Of Perkinsus Marinus : Host Specificity : Final Report, Grant # Na16fl0399-01, Frank O. Perkins Jan 1994

Life Cycle Studies Of Perkinsus Marinus : Host Specificity : Final Report, Grant # Na16fl0399-01, Frank O. Perkins

Reports

This project represents a renewal of Grant# NA16FL0399-0l designed to further investigate the host specificity of Perkinsus marinus by surveying for its presence in molluscs obtained from Virginia's coastal and estuarine waters. As a result of that survey, determinations were made as to the host species most appropriate for use in transmission-of-infection experiments.


A Physiological Approach To The Understanding Of Parasite (Perkinsus Marinus) Interactions : Pathological Effects And Disease Resistance, Bruce Barber, Roger L. Mann Jan 1994

A Physiological Approach To The Understanding Of Parasite (Perkinsus Marinus) Interactions : Pathological Effects And Disease Resistance, Bruce Barber, Roger L. Mann

Reports

No abstract provided.


Rally Round! A Guide To Environmental Action Projects For Grades 4-7, Virginia Bay Team, Sea Grant Marine Advisory Program Jan 1994

Rally Round! A Guide To Environmental Action Projects For Grades 4-7, Virginia Bay Team, Sea Grant Marine Advisory Program

Reports

No abstract provided.


Potential Range Of The Zebra Mussel, Dreissena Polymorpha, In And Near Virginia, Patrick Baker, Shirley Baker, Roger L. Mann Jan 1994

Potential Range Of The Zebra Mussel, Dreissena Polymorpha, In And Near Virginia, Patrick Baker, Shirley Baker, Roger L. Mann

Reports

This publication is devoted to predictions of the probability of invasion by the zebra mussel, Dreissena polymorpha (and the quagga mussel, Dreissena sp.) to specific bodies of water in Virginia. Probability of invasion is divided into risk and susceptibility. Risk refers to the chance, relative to other sites, that a body of water will be inoculated with Dreissena, in sufficient number to establish a population. Inoculation can occur by natural dispersal, but in the mid-Atlantic region is most likely to-occur though accidental introduction by humans, especially via boat traffic. Susceptibility of a body of water refers to the probability, based …


Virginia Institute Of Marine Science’S Trawl Survey, P. J. Geer Jan 1994

Virginia Institute Of Marine Science’S Trawl Survey, P. J. Geer

Reports

No abstract provided.


Estimation Of Juvenile Striped Bass Relative Abundance In The Virginia Portion Of Chesapeake Bay, January 1993-December 1993 : Annual Progress Report, Hebert M. Austin, A. Dean Estes, Donald M. Seaver Jan 1994

Estimation Of Juvenile Striped Bass Relative Abundance In The Virginia Portion Of Chesapeake Bay, January 1993-December 1993 : Annual Progress Report, Hebert M. Austin, A. Dean Estes, Donald M. Seaver

Reports

No abstract provided.


The Status Of Virginia's Public Oyster Resource 1993, Reinaldo Alonzo-Morales, Roger Mann Jan 1994

The Status Of Virginia's Public Oyster Resource 1993, Reinaldo Alonzo-Morales, Roger Mann

Reports

This report summarizes data collected during 1993 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.


Chesapeake Bay Benthic Community Restoration Goals, J. Ananda Ranasinghe, Stephen B. Weisberg, Daniel M. Dauer, Linda C. Schaffner, Robert J. Diaz, Jeffrey B. Frithsen Jan 1994

Chesapeake Bay Benthic Community Restoration Goals, J. Ananda Ranasinghe, Stephen B. Weisberg, Daniel M. Dauer, Linda C. Schaffner, Robert J. Diaz, Jeffrey B. Frithsen

Reports

Benthic macroinvertebrate assemblages have been an integral part of the Chesapeake Bay monitoring program since its inception due to their ecological importance and their value as biological indicators. The condition of benthic assemblages reflects an integration of temporally variable environmental conditions and the effects of multiple types of environmental stresses. As such, benthic assemblages provide a useful complement to more temporally variable chemical and water quality monitoring measures.

While assessments using benthic monitoring data have been useful for characterizing changes in environmental conditions at individual sites over time, and for relating the condition of sites to pollution loadings and sources, …


Invasion Of An Exotic Species : Stop The Zebra Mussel! Activities And Resources For Grades 8-12., Vicki P. Clark, Thomas J. Millar Jan 1994

Invasion Of An Exotic Species : Stop The Zebra Mussel! Activities And Resources For Grades 8-12., Vicki P. Clark, Thomas J. Millar

Reports

No abstract provided.


Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1993-1994 Annual Report, 1 September 1993 - 31 August 1994, Bruce W. Hill, Joseph G. Loesch Jan 1994

Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1993-1994 Annual Report, 1 September 1993 - 31 August 1994, Bruce W. Hill, Joseph G. Loesch

Reports

No abstract provided.