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Population Structure Of The Arkshell Clams Noetia Ponderosa And Anadara Ovalis In The Oceanside Lagoons And Tidal Creeks Of Virginia And Implications For Fisheries Management, Kay A. Mcgraw, Michael Castagna, Sally D. Dennis
Population Structure Of The Arkshell Clams Noetia Ponderosa And Anadara Ovalis In The Oceanside Lagoons And Tidal Creeks Of Virginia And Implications For Fisheries Management, Kay A. Mcgraw, Michael Castagna, Sally D. Dennis
Reports
Two species of arkshell (blood) clams, Noetia ponderosa and Anadara ovalis, have · recently been targeted by watermen on the Eastern Shore of Virginia for sale to east coast markets. Until 1991 fishermen caught both species in conjunction with the harvest of oysters and hard clams and considered them of little value. Very little is known about either species, and preliminary data from our pilot study in 1993 indicated that blood clams were being overfished. In September, 1994 we conducted a survey in the oceanside lagoon system along the Eastern Shore and collected data on density, abundance, habitat preference, and …
Preliminary Evaluation Of Water Quality In Tidal Creeks Of Virginia's Eastern Shore In Relation To Vegetable Cultivation, Mark W. Luckenbach, Morris H. Roberts Jr., Keith Boyd
Preliminary Evaluation Of Water Quality In Tidal Creeks Of Virginia's Eastern Shore In Relation To Vegetable Cultivation, Mark W. Luckenbach, Morris H. Roberts Jr., Keith Boyd
Reports
In response to concerns raised about the impacts of vegetable cultivation using plastic ground covers on water quality, we have initiated a broad-scale, systematic study of water quality in seaside tidal creeks of Virginia' s Eastern Shore. Our objective was to determine if acute toxicity associated with heavy metals or pesticides was more prevalent in tidal creeks with drainage areas which include this agricultural practice than in those which do not. Though such correlations do not confirm cause and effect, they may serve as the basis for future, more targeted investigations and for some immediate changes in land management practices …
Evaluation Of Dredge Fishing Activity On The Seaside Of Virginia's Eastern Shore, December 1994 - November 1995, Mark W. Luckenbach, James E. Wesson
Evaluation Of Dredge Fishing Activity On The Seaside Of Virginia's Eastern Shore, December 1994 - November 1995, Mark W. Luckenbach, James E. Wesson
Reports
Dredging has a long history in Virginia's commercial fisheries. In general, dredges are scraping or digging apparatuses that harvest as they are towed behind boats under power. Mechanical dredges have been used with sail power to harvest oysters since the mid- l 800's. Crabs have been harvested by power dredges since at least 1900, while dredge fishing of clams, which reside deeper in the substrate, began somewhat later. Individual crab dredges in Virginia can be a maximum of 8 ft wide and are usually pulled in pairs for a maximum total width of 16 ft. The dredge has a scraping …