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Full-Text Articles in Life Sciences

Sycamore Platanus Occidentalis L., Gene Silberhorn Jan 1994

Sycamore Platanus Occidentalis L., Gene Silberhorn

Reports

The Wetland Flora Technical Report series provides concise information regarding the identification, growth habits, distribution, habitat, ecology and wetland indicator status for the title species. Illustrations are also included to aid in specimen identification.


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.


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.


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.


Tidal Freshwater Ecosystems: Bibliography, Daniel J. Yozzo, David E. Smith, Marilyn L. Lewis Jan 1994

Tidal Freshwater Ecosystems: Bibliography, Daniel J. Yozzo, David E. Smith, Marilyn L. Lewis

Reports

Tidal freshwater ecosystems represent an important transition zone between saline reaches of estuaries and non-tidal riverine environments. Tidal freshwater systems are distributed worldwide, but have been intensively studied in only a few geographic regions, such as the U.S. east coast and western Europe. Typically, tidal freshwater systems are characterized by high physical stress due to sediment instability and tidal action, which results in low species diversity. However, a number of anadromous and resident fish species utilize tidal freshwater reaches of estuaries as a spawning and nursery area, including economically significant species such as striped bass, American shad, and Atlantic sturgeon. …


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.


Harvesting Efficiency And Size Selectivity Of 3.25 And 3.50 Inch Ring Sea Scallop Dredges : Final Cruise Report, William Dupaul Jan 1994

Harvesting Efficiency And Size Selectivity Of 3.25 And 3.50 Inch Ring Sea Scallop Dredges : Final Cruise Report, William Dupaul

Reports

Sea scallop dredges constructed with 3.25 inch (82 mm) and 3.50 inch (87 mm) rings were towed side-by-side to assess differences in harvesting efficiency and size selectivity of sea scallops (Piacopecten magellanicus). One hundred tows were made within the Canadian portion of Georges Bank from the northern edge eastward and south to the southeastern pari near Corsair Canyon. Quantities of and size distribution of scallops harvested were assessed for each dredge. Data will be analyzed to assess size selectivity and technical efficiency of scallop vessels operating in both the U.S. and Canadian portion of Georges Bank and factors affecting the …


By-Catch And The Fishery For Atlantic Menhaden (Brevoortia Tyrannus) In The Mid-Atlantic Bight An Assessment Of The Nature And Extent Of By-Catch, Herb Austin, James Kirkley, Jon Lucy Jan 1994

By-Catch And The Fishery For Atlantic Menhaden (Brevoortia Tyrannus) In The Mid-Atlantic Bight An Assessment Of The Nature And Extent Of By-Catch, Herb Austin, James Kirkley, Jon Lucy

Reports

No abstract provided.


Restoration Of The Virginia Oyster Fishery The Alternative Species Strategy, Dennis Taylor Jan 1994

Restoration Of The Virginia Oyster Fishery The Alternative Species Strategy, Dennis Taylor

Reports

No abstract provided.