scholarly journals Effects of Shoreline Alteration and Other Stressors on Submerged Aquatic Vegetation in Subestuaries of Chesapeake Bay and the Mid-Atlantic Coastal Bays

2014 ◽  
Vol 37 (6) ◽  
pp. 1516-1531 ◽  
Author(s):  
Christopher J. Patrick ◽  
Donald E. Weller ◽  
Xuyong Li ◽  
Micah Ryder
Keyword(s):  
Chesapeake Bay ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
Coastal Bays ◽  
Atlantic Coastal

scholarly journals In Situ Effects of Shoreline Type and Watershed Land Use on Submerged Aquatic Vegetation Habitat Quality in the Chesapeake and Mid-Atlantic Coastal Bays

2017 ◽  
Vol 41 (S1) ◽  
pp. 101-113 ◽  
Author(s):  
J. Brooke Landry ◽  
Rebecca R. Golden
Keyword(s):  
Land Use ◽  
Habitat Quality ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
Population Pressure ◽  
Watershed Land Use ◽  
Coastal Bays ◽  
Shoreline Hardening ◽  
Atlantic Coastal

Abstract Submerged aquatic vegetation (SAV) is an ecologically and economically valuable component of coastal estuaries that acts as an early indicator of both degrading and improving water quality. This study aimed to determine if shoreline hardening, which is associated with increased population pressure and climate change, acts to degrade SAV habitat quality at the local scale. In situ comparisons of SAV beds adjacent to both natural and hardened shorelines in 24 subestuaries throughout the Chesapeake and Mid-Atlantic Coastal Bays indicated that shoreline hardening does impact adjacent SAV beds. Species diversity, evenness, and percent cover were significantly reduced in the presence of riprap revetment. A post hoc analysis also confirmed that SAV is locally affected by watershed land use associated with increased population pressure, though to a lesser degree than impacts observed from shoreline armoring. When observed over time, SAV recovery at the local level took approximately 3 to 4 years following storm impacts, and SAV adjacent to natural shorelines showed more resilience to storms than SAV adjacent to armored shorelines. The negative impacts of shoreline hardening and watershed development on SAV shown here will inform coastal zone management decisions as increasing coastal populations and sea level rise drive these practices.

Chesapeake Bay: An Unprecedented Decline in Submerged Aquatic Vegetation

Science ◽  
1983 ◽  
Vol 222 (4619) ◽  
pp. 51-53 ◽  
Author(s):  
R. J. ORTH ◽  
K. A. MOORE
Keyword(s):  
Chesapeake Bay ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation

Mute Swans' Impact on Submerged Aquatic Vegetation in Chesapeake Bay

2007 ◽  
Vol 71 (5) ◽  
pp. 1431-1439 ◽  
Author(s):  
KETAN S. TATU ◽  
JAMES T. ANDERSON ◽  
LARRY J. HINDMAN ◽  
GEORGE SEIDEL
Keyword(s):  
Chesapeake Bay ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
Mute Swans

scholarly journals Twenty-first century climate change and submerged aquatic vegetation in a temperate estuary: the case of Chesapeake Bay

2017 ◽  
Vol 3 (7) ◽  
pp. 1353283 ◽  
Author(s):  
Thomas M. Arnold ◽  
Richard C. Zimmerman ◽  
Katharina A. M. Engelhardt ◽  
J. Court Stevenson
Keyword(s):  
Climate Change ◽  
Chesapeake Bay ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
First Century ◽  
Temperate Estuary ◽  
Twenty First Century

A Geospatial Approach for Estimating Suitable Habitat and Population Size of the Invasive Northern Snakehead

2015 ◽  
Vol 6 (1) ◽  
pp. 145-157 ◽  
Author(s):  
Joseph W. Love ◽  
Joshua J. Newhard ◽  
Brett Greenfield
Keyword(s):  
Chesapeake Bay ◽  
Population Size ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation ◽  
Adult Population ◽  
Tidal Freshwater ◽  
Predatory Fish ◽  
Suitable Habitat ◽  
Potomac River ◽  
Chesapeake Bay Watershed

Abstract Northern snakehead Channa argus, an invasive predatory fish species from Asia, may continue to establish itself throughout temperate areas of the eastern United States, particularly in shallow vegetated habitats of ponds and streams. The species was first collected in the Potomac River in 2004 and has become successfully established in several major rivers within the Chesapeake Bay watershed. The objectives of this work were to develop habitat suitability criteria using a novel methodology that combines geographic information systems technology and fish surveys to estimate population sizes. A combination of catch data and reported or empirically derived habitat relationships were used to analyze seasonal distributions (March–October) in two tidal freshwater tributaries of the Potomac River: Nanjemoy Creek (2013) and Chopawamsic Creek (2010–2013). Adults were collected in relatively deeper sections of the streams (average depth 0.7–1.0 m) with a low cover of submerged aquatic vegetation (0–21% of site). Using additional distributional data, we identified suitability criteria as: 1) edges of submerged aquatic vegetation that included 5 m of vegetation and 5 m of adjacent open water; 2) less than 30% of mid-channel distance from shore, which may or may not include submerged aquatic vegetation; and 3) the upper 15% of the tidal freshwater stream. An adult population estimate derived from a suitable area in Pomonkey Creek (a tributary of the Potomac River) and estimated densities from Nanjemoy Creek and Chopawamsic Creek (i.e., three adults/ha) was not different from that expected using electrofishing surveys. Assuming approximately 7,093 ha of suitable habitat and three adults/ha, the number of adults was predicted to be 21,279 for 44 major tidal freshwater tributaries of the Potomac River. This is our first estimate of population size of northern snakehead for any river of the Chesapeake Bay watershed and its accuracy will undoubtedly improve as additional studies report variation in density for other tributaries. Because of the species’ ability to establish itself in temperate climates, it is important to engage the public to prevent additional releases of northern snakehead, especially to vulnerable habitats.

The response of fishes to submerged aquatic vegetation complexity in two ecoregions of the mid-Atlantic bight: Buzzards Bay and Chesapeake Bay

Estuaries ◽  
2002 ◽  
Vol 25 (1) ◽  
pp. 86-100 ◽  
Author(s):  
Jason C. Wyda ◽  
Linda A. Deegan ◽  
Jeffrey E. Hughes ◽  
Melissa J. Weaver
Keyword(s):  
Chesapeake Bay ◽  
Submerged Aquatic Vegetation ◽  
Aquatic Vegetation
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