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Physical Sciences and Mathematics Commons

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Research and Technical Reports

2016

Natural Resources and Conservation

Articles 1 - 9 of 9

Full-Text Articles in Physical Sciences and Mathematics

Assessing Ecological And Economic Effects Of Derelict Fishing Gear: A Guiding Framework, Christopher F.G. Jeffrey, Kirk J. Havens, H. Ward Slacum Jr., Donna Marie Bilkovic, Danielle Zaveta, Andrew M. Scheld, Sean Willard, John D. Evans Oct 2016

Assessing Ecological And Economic Effects Of Derelict Fishing Gear: A Guiding Framework, Christopher F.G. Jeffrey, Kirk J. Havens, H. Ward Slacum Jr., Donna Marie Bilkovic, Danielle Zaveta, Andrew M. Scheld, Sean Willard, John D. Evans

Reports

Developing standardized protocols to assess the ecological and socio-economic effects of marine debris – especially, derelict fishing gear – is critical for the protection of natural resources and for evaluating policies and programs designed to reduce and remove debris. This document outlines a Derelict Fishing Gear Assessment Framework to guide the development and implementation of derelict gear assessment, management and mitigation. The framework draws from techniques and protocols developed to assess derelict crab traps effects in the Chesapeake Bay and on past derelict gear assessments either conducted by or known to the framework authors. However, this framework is generalized and intended to ...


Ecological And Economic Effects Of Derelict Fishing Gear In The Chesapeake Bay 2015/2016 Final Assessment Report, Donna M. Bilkovic, H. Ward Slacum Jr., Kirk J. Havens, Danielle Zaveta, Christopher F.G. Jeffrey, Andrew M. Scheld, David Stanhope, Kory Angstadt, John D. Evans Oct 2016

Ecological And Economic Effects Of Derelict Fishing Gear In The Chesapeake Bay 2015/2016 Final Assessment Report, Donna M. Bilkovic, H. Ward Slacum Jr., Kirk J. Havens, Danielle Zaveta, Christopher F.G. Jeffrey, Andrew M. Scheld, David Stanhope, Kory Angstadt, John D. Evans

Reports

Derelict fishing gear represents a major challenge to marine resource management: whether through deliberate abandonment or through accidental loss, derelict traps in particular have significant negative effects both economic (e.g., reduced fishery harvest from ghost fishing and gear competition that leads to the reduced efficiency of active gear) and ecological (e.g., degraded habitats and marine food webs and crab and bycatch mortality). Throughout the Chesapeake Bay, commercial harvest of hard-shelled blue crabs is a major fishing activity: every year sees the deployment of several hundred thousand blue crab traps (known locally as crab “pots”) across the Bay, of ...


Accomack County, Virginia Shoreline Inventory Report Methods And Guidelines, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Kory Angstadt, Christine Tombleson, Karen Duhring, Kallie Brown, Jessica Hendricks, David Weiss, Carl Hershner, Comprehensive Coastal Inventory Program Sep 2016

Accomack County, Virginia Shoreline Inventory Report Methods And Guidelines, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Kory Angstadt, Christine Tombleson, Karen Duhring, Kallie Brown, Jessica Hendricks, David Weiss, Carl Hershner, Comprehensive Coastal Inventory Program

Reports

In the 1970s, the Virginia Institute of Marine Science (VIMS) received a grant through the National Science Foundation’s Research Applied to National Needs Program to develop a series of reports that would describe the condition of tidal shorelines in the Commonwealth of Virginia. These reports became known as the Shoreline Situation Reports. They were published on a locality by locality basis with additional resources provided by the National Oceanic and Atmospheric Administration’s Office of Coastal Zone Management (Hobbs et al., 1975).

The Shoreline Situation Reports quickly became a common desktop reference for nearly all shoreline managers, regulators, and ...


Werowocomoco Shoreline Management Plan, Donna A. Milligan, C. Scott Hardaway Jr., Christine A. Wilcox Sep 2016

Werowocomoco Shoreline Management Plan, Donna A. Milligan, C. Scott Hardaway Jr., Christine A. Wilcox

Reports

Werowocomoco is located on the York River in Gloucester County, Virginia (Figure 1). Historical documents identified Werowocomoco as the headquarters of Powhatan, the Algonquian political and spiritual leader when the English founded Jamestown in 1607. For many years, the exact location of the site was unknown; however, in 2003, archeological digs at the site on the York River between Leigh and Bland Creeks confirmed the location. The site has been occupied by Native Americans since 8,000 before the common era (BCE) and is one of the most important Native American sites in the nation.

In 2016, subsequent to the ...


Shoreline Evolution: City Of Chesapeake, Virginia Elizabeth River Shorelines Data Summary Report, Donna A. Milligan, Christine Wilcox, C. Scott Hardaway Jr. Aug 2016

Shoreline Evolution: City Of Chesapeake, Virginia Elizabeth River Shorelines Data Summary Report, Donna A. Milligan, Christine Wilcox, C. Scott Hardaway Jr.

Reports

City of Chesapeake is situated between the Cities of Norfolk and Portsmouth along several branches of the Elizabeth River (Figure 1). Because the City's shoreline is continually changing, determining where the shoreline was in the past, how far and how fast it is moving, and what factors drive shoreline change will help define where the shoreline will be going in the future. These rates and patterns of shore change along Chesapeake Bay’s estuarine shores will differ through time as winds, waves, tides and currents shape and modify coastlines by eroding, transporting and depositing sediments.

The purpose of this ...


Integrated Assessment Of Oyster Reef Ecosystem Services: Macrofauna Utilization Of Restored Oyster Reefs, M. Lisa Kellogg, Kennedy T. Paynter, Paige G. Ross, Jennifer C. Dreyer, Cate Turner, Manisha Pant, Alan Birch, Edward Smith May 2016

Integrated Assessment Of Oyster Reef Ecosystem Services: Macrofauna Utilization Of Restored Oyster Reefs, M. Lisa Kellogg, Kennedy T. Paynter, Paige G. Ross, Jennifer C. Dreyer, Cate Turner, Manisha Pant, Alan Birch, Edward Smith

Reports

Within the Harris Creek Oyster Sanctuary in the Maryland portion of Chesapeake Bay, we evaluated relationships between basic oyster reef characteristics and the abundance and biomass of macrofauna. The eight sites selected for these studies included five restored oyster reef sites and three sites suitable for restoration that had not been restored. These sites encompassed a range of oyster biomass density and were spread throughout the sanctuary area. At each site one month prior to each of four sampling periods, divers filled four wire mesh baskets (0.1m2 surface area x 15 cm depth) with material from the site and ...


Virginia Game Fish Tagging Program Annual Report 2015, Susanna Musick, Lewis Gillingham May 2016

Virginia Game Fish Tagging Program Annual Report 2015, Susanna Musick, Lewis Gillingham

Reports

Through 2015, the Virginia Game Fish Tagging Program has maintained a 20-year database of records for tagged and recaptured fish. The program is a cooperative project of the Virginia Saltwater Fishing Tournament (under the Virginia Marine Resources Commission-VMRC) and the Virginia Institute of Marine Science (VIMS) of the College of William and Mary (under the VIMS Marine Advisory Program).


Integrated Assessment Of Oyster Reef Ecosystem Services: Fish And Crustacean Utilization And Trophic Linkages, M. Lisa Kellogg, Paige G. Ross, Mark Luckenbach, Jennifer C. Dreyer, Manisha Pant, Alan Birch, Sean Fate, Edward Smith, Kennedy Paynter Mar 2016

Integrated Assessment Of Oyster Reef Ecosystem Services: Fish And Crustacean Utilization And Trophic Linkages, M. Lisa Kellogg, Paige G. Ross, Mark Luckenbach, Jennifer C. Dreyer, Manisha Pant, Alan Birch, Sean Fate, Edward Smith, Kennedy Paynter

Reports

Using a regression design that encompassed the continuum of oyster reef biomass density in Harris Creek, MD, from unrestored reefs to those restored reefs with the greatest oyster biomass, we examined finfish and crustacean utilization of these habitats. Of the eight sites studied, three had not been subject to any restoration activities and five had been planted in 2012 with juvenile oysters set on oyster shell. All sites were sampled in April, June, August, and October 2015. During each sampling period, we assessed abundance, total length and biomass of finfish and examined gut contents to assess the diets of selected ...


Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2016), Troy D. Tuckey, Mary C. Fabrizio Jan 2016

Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2016), Troy D. Tuckey, Mary C. Fabrizio

Reports

American Eel (Anguilla rostrata) is a valuable commercial species along the Atlantic coast of North America from New Brunswick to Florida. Landings from Chesapeake Bay typically represent 60% of the annual United States commercial harvest (ASMFC 2012). American Eel is also important to the recreational fishery as it is often used live as bait for Striped Bass (Morone saxatilis) and Cobia (Rachycentron canadum). In 2012, Chesapeake Bay commercial landings of American Eel (771,536 lbs) were 72% of the U.S. landings (personal communication from the National Marine Fisheries Service, Fisheries Statistics Division). Since the 1980s, harvest along the U ...