Streamer Resistivity Surveys in Delmarva Coastal Bays

2002 ◽  
Author(s):  
Frank T. Manheim ◽  
David E. Krantz ◽  
Donald S. Snyder ◽  
Brian Sturgis
Keyword(s):  
Coastal Bays

scholarly journals Analysis of Estrogenic Activity in Maryland Coastal Bays Using the MCF-7 Cell Proliferation Assay

2021 ◽  
Vol 18 (12) ◽  
pp. 6254
Author(s):  
Rehab Elfadul ◽  
Roman Jesien ◽  
Ahmed Elnabawi ◽  
Paulinus Chigbu ◽  
Ali Ishaque
Keyword(s):  
Cell Proliferation ◽  
Estrogenic Activity ◽  
Landing Site ◽  
Negative Control ◽  
Proliferation Assay ◽  
Negative Effects ◽  
Cell Proliferation Assay ◽  
Coastal Bays ◽  
Maryland Coastal Bays ◽  
Mcf 7

Contaminants of Emerging Concern (CECs) with estrogenic or estrogenic-like activity have been increasingly detected in aquatic environments and have been an issue of global concern due to their potential negative effects on wildlife and human health. This study used the MCF-7 cell proliferation assay (E-Screen) to assess the estrogenic activity profiles in Maryland Coastal Bays (MCBs), a eutrophic system of estuaries impacted by human activities. Estrogenic activity was observed in all study sites tested. Water samples from MCBs increased MCF-7 cell proliferation above the negative control from 2.1-fold at site 8, located in Sinepuxent Bay close to the Ocean City Inlet, to 6.3-fold at site 6, located in Newport Bay. The proliferative effects of the sediment samples over the negative control ranged from 1.9-fold at the Assateague Island National Seashore site to 7.7-fold at the Public Landing site. Moreover, elevated cell proliferation (p < 0.05) was observed when cells were co-exposed with 17ß-Estradiol (E2), while reduction in cell proliferation was observed when cells were co-exposed with the antagonist ICI 182, 780 suggesting that cell proliferative effects were primarily mediated by the estrogen receptor (ER). These results suggest the occurrence of some estrogenic or hormonal-like compounds in the MCBs and are consistent with our previous findings based on vitellogenin analyses.

A Simple Index of Trophic Status in Estuaries and Coastal Bays Based on Measurements of pH and Dissolved Oxygen

2012 ◽  
Vol 36 (1) ◽  
pp. 158-173 ◽  
Author(s):  
Shane O’Boyle ◽  
Georgina McDermott ◽  
Tone Noklegaard ◽  
Robert Wilkes
Keyword(s):  
Dissolved Oxygen ◽  
Trophic Status ◽  
Coastal Bays ◽  
Simple Index

Sources and Fates of Nitrogen in Virginia Coastal Bays

2010 ◽  
pp. 43-72 ◽  
Author(s):  
Iris Anderson ◽  
Jennifer Stanhope ◽  
Amber Hardison ◽  
Karen McGlathery
Keyword(s):  
Coastal Bays

Sea cage aquaculture may provide an energetic subsidy to wild juvenile cod in coastal bays of southern Newfoundland, Canada

2021 ◽  
Author(s):  
LT McAllister ◽  
TE Van Leeuwen ◽  
JM Hanlon ◽  
CJ Morris ◽  
J Potter ◽  
...  
Keyword(s):  
Coastal Bays ◽  
Cage Aquaculture ◽  
Sea Cage

Phosphorus Speciation and Bioavailability in the Surface Sediments of Maryland Coastal Bays

2020 ◽  
Vol 36 (6) ◽  
Author(s):  
Dev P. Gurung ◽  
Nianhong Chen ◽  
Yan Waguespack ◽  
Douglas E. Ruby ◽  
Ali B. Ishaque ◽  
...  
Keyword(s):  
Surface Sediments ◽  
Phosphorus Speciation ◽  
Coastal Bays ◽  
Maryland Coastal Bays

Mitigating Impacts of Natural Hazards on Fishery Ecosystems

2008 ◽  
Keyword(s):  
Natural Hazards ◽  
Large Scale ◽  
Gulf Coast ◽  
Commercial Fishing ◽  
Single Beam ◽  
Coastal Bays ◽  
Fishing Vessels ◽  
Northern Gulf Coast ◽  
Hurricanes Katrina And Rita ◽  
Survey Planning

<em>Abstract</em>.—Hurricanes Katrina and Rita critically impacted the northern Gulf Coast. Shrimping and other commercial fishing industries saw large scale destruction of vessels and shore based facilities in addition to a deposition of large amounts of debris on fishing grounds from Alabama to Louisiana. In 2006, the National Oceanic and Atmospheric Administration’s (NOAA’s) Office of Coast Survey and Office of Response and Restoration started the implementation of a large scale hazards survey program to map the coastal waters of Louisiana, Mississippi, and Alabama. The first phase of the effort involved surveying more than 600 square nautical miles of coastal bays and nearshore waters with sidescan and single beam acoustic sonar. Survey findings are posted each week on a NOAA public Web site displaying the location of each hazard and debris found. The survey work is also updating the NOAA navigation charts for coastal areas that are used heavily by fishing vessels, the navigation industry, and recreational boaters. Survey planning and implementation is conducted cooperatively with the marine fisheries agencies of Alabama, Mississippi, and Louisiana.

scholarly journals Downscaling sea-level rise effects on tides and sediment dynamics in tidal bays

2019 ◽  
Author(s):  
Long Jiang ◽  
Theo Gerkema ◽  
Déborah Idier ◽  
Aimée B. A. Slangen ◽  
Karline Soetaert
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Coastal Bays ◽  
Dominant State ◽  
Shelf Sea ◽  
Basin Geometry ◽  
Coastal Bay ◽  
Local Impacts ◽  
Spatially Varying ◽  
Sediment Export

Abstract. Sea-level rise (SLR) not only increases the threat of coastal flooding, but also may change tidal regimes in estuaries and coastal bays. To investigate such nearshore tidal responses to SLR, a hydrodynamic model of the European Shelf is downscaled to a model of a Dutch coastal bay (the Eastern Scheldt) and forced by SLR scenarios ranging from 0 to 2 m. The results indicate that SLR induces larger increases in tidal amplitude and stronger nonlinear tidal distortion in the bay compared to the adjacent shelf sea. Under SLR, the basin shifts from a mixed flood- and ebb-dominant state to complete ebb-dominance, causing enhanced sediment export and accelerated loss of tidal flats. In this case study, we find that local impacts of SLR can be highly spatially-varying and nonlinear depending on basin geometry. Our model downscaling approach is widely applicable for establishing local SLR projections in estuaries and coastal bays.

Dynamics of dissolved organic carbon and total dissolved nitrogen in Maryland's coastal bays

2015 ◽  
Vol 164 ◽  
pp. 451-462 ◽  
Author(s):  
Shuiwang Duan ◽  
Nianhong Chen ◽  
Sujay S. Kaushal ◽  
Paulinus Chigbu ◽  
Ali Ishaque ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Coastal Bays ◽  
Dissolved Nitrogen ◽  
Total Dissolved Nitrogen
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