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Showing 1 to 20 of 25 for “"Mid-Atlantic Bight"”.
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Radium isotopes as tracers of coastal circulation pathways in the Mid-Atlantic Bight
… of exchange between the shelf and slope in the Mid-Atlantic Bight were investigated using a combination of radiochemical tracer and hydrographic measurements. The motivation was to provide evidence of transport routes for shelfwater that could be important to the balance of shelf-slope exchange, …
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INVESTIGATION OF DEAD OCEAN QUAHOGS (ARCTICA ISLANDICA) SHELLS ON THE MID-ATLANTIC BIGHT CONTINENTAL SHELF
… widely dispersed, biomass dominate in the Mid-Atlantic; therefore, quahog shells are valuable resources for studying climate change over time. Recently, dead ocean quahog shells were discovered south and inshore of the present biogeographic range of this animal. The presence of ocean quahog …
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THE INFLUENCE OF SPATIALHETEROGENEITY ON OCEAN QUAHOG (ARCTICA ISLANDICA) POPULATION DYNAMICS ALONG THE MID-ATLANTIC BIGHT
<p>The ocean quahog (<em>Arctica islandica</em>) support an economically important fishery in the US, though little is known about their life history traits. To determine how these traits vary geographically, the age frequencies and growth rates from two New Jersey sites (NJ1 & NJ2) as well as …
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Wet and Dry Atmospheric Deposition of Nutrients and Bioactive Trace Metals to Coastal Waters of the Mid-Atlantic Bight
… the seasonally oligotrophic waters of the Mid-Atlantic Bight. These atmospherically derived nutrients and trace metals enter the surface ocean via dry deposition of aerosols and wet deposition in rain. To estimate the aeolian input of nutrients and trace metals to coastal waters east of the …
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Spatial Distribution and Stock-Recruitment Analysis of the Atlantic Surfclam, <i>Spisula solidissima</i>, in the Mid-Atlantic Bight and on Georges Bank
<p>Atlantic surfclams, <em>Spisula solidissima</em>, are long-lived bivalve molluscs with dispersive larval stages. Surfclam patchiness throughout the U.S. Exclusive Economic Zone (EEZ) has declined from the 1980’s to the present in all assessed regions (Delmarva, New Jersey, Long Island, Southern …
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Radium isotopes as tracers of coastal circulation pathways in the Mid-Atlantic Blight
… of exchange between the shelf and slope in the Mid-Atlantic Bight were investigated using a combination of radiochemical tracer and hydrographic measurements. The motivation was to provide evidence of transport routes for shelfwater that could be important to the balance of shelf-slope exchange, …
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Projected Range Shift of the Atlantic Surfclam, Spisula solidissima, and the Ocean Quahog, Arctica islandica, Under Climate-Induced Benthic Warming: Forecasting Fishery Influence in the Mid-Atlantic Bight Throughout the 21st Century
<p>The Atlantic surfclam, <em>Spisula solidissima</em>, and ocean quahog, <em>Arctica islandica,</em> are biomass dominant bivalve species on the eastern North American continental shelf, both supporting lucrative commercial fisheries in the Mid-Atlantic with a combined value of $53.6 million in …
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The influence of a steady baroclinic deep ocean on the shelf
… for velocity and density over the slope in the Mid-Atlantic Bight is generally larger than the shelf break depth and consequently it is concluded that the steep continental slope "insulates" this particular shelf from baroclinic deep ocean influence and therefore that the observed shelf flow is …
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Nutrient and Carbon Dynamics in the Chesapeake Bay Outflow Plume and Their Effect on the Coastal Ocean Environment
… uptake rates in three distinct regions of the Mid-Atlantic Bight: the plume regions influenced by the Delaware and Chesapeake Bays, the mid-shelf region between the Delaware and Chesapeake Bays influenced by both coastal and oceanic processes, and the southern shelf region below the Chesapeake …
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Diapycnal Mixing and Mass Transfer in Western Boundary Currents
… the Stream between the Florida Straits and the Mid-Atlantic Bight. A two-box model of the nutrient-depleted surface layers (σ<sub>t</sub> < 26.8) and the nutrient-rich thermocline layers (26.8< σ<sub>t </sub>< 27.5) shows upward one-way transfer and two-way exchange, both at a a rate at about …
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Submesoscale Biophysical Interactions on the Gulf Stream: Eddies, Fronts, and New Observational Methods
… on the marine ecosystem of the Gulf Stream and mid-Atlantic Bight. This work revealed seasonality contrasting that of the typical North Atlantic blooms, but more similar to Sargasso Sea water at this latitude with peak biomass in winter. We found shifting nutrient limitations and observed …
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Analysis of acoustic propagation in the region of the New England continental shelfbreak
… oceanography experiment was fielded in the Mid-Atlantic Bight, south of Nantucket Island, MA. Known as the Shelfbreak Front PRIMER Experiment, the study combined acoustic data from a moored array of sources and receivers with very high resolution physical oceanographic measurements. This …
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Analysis of acoustic propagation in the region of the New England continental shelfbreak
… oceanography experiment was fielded in the Mid-Atlantic Bight, south of Nantucket Island, MA. Known as the Shelfbreak Front PRIMER Experiment, the study combined acoustic data from a moored array of sources and receivers with very high resolution physical oceanographic measurements. This …
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Management Strategy Evaluation for the Atlantic Surfclam, <i>Spisula solidissima</i>, Using a Fisheries Economics Model
<p>The Atlantic surfclam, <em>Spisula solidissima</em>, is an economically valuable bivalve harvested along the northeastern United States. The surfclam’s range has contracted and the center of the stock’s distribution has shifted north driven by warmer bottom water temperatures. Declining landings …
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When an eddy encounters shelf-slope topography
… routinely affect the continental shelves of the Mid-Atlantic Bight, the Gulf of Mexico etc. The consequent cross-shelfbreak transports are currently of unknown importance to shelf budgets of heat, salt and volume. Thus motivated, this thesis uses idealized continuously stratified numerical …
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When an eddy encounters shelf-slope topography
… routinely affect the continental shelves of the Mid-Atlantic Bight, the Gulf of Mexico etc. The consequent cross-shelfbreak transports are currently of unknown importance to shelf budgets of heat, salt and volume. Thus motivated, this thesis uses idealized continuously stratified numerical …
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Prediction of continental shelf sediment transport using a theoretical model of the wave-current boundary layer
… sediment depositional patterns. Data from the Mid-Atlantic Bight and the Northern California coast are used to define reasonable model input to represent conditions on two different types of shelves. In these examples, the results show how the intensification of wave bottom velocities with …
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Prediction of continental shelf sediment transport using a theoretical model of the wave-current boundary layer
… sediment depositional patterns. Data from the Mid-Atlantic Bight and the Northern California coast are used to define reasonable model input to represent conditions on two different types of shelves. In these examples, the results show how the intensification of wave bottom velocities with …
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Compositional heterogeneity within oceanic POM : a study using flow cytometry and mass spectrometry
… organic matter (POM) collected from the North Atlantic. DT-MS is an important asset to marine organic geochemistry as a single two minute analysis (with 16 eV, EI+ ionization) provides information on polysaccharides, proteins, and lipids within concentrated and desalted samples. Although the …
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Tracking diet and movement of Atlantic bluefin tuna (Thunnus thynnus) using carbon and nitrogen stable isotopes
<p>Atlantic bluefin tuna (ABFT; Thunnus thynnus) are important top predators in pelagic ecosystems. Understanding their diet and movements is necessary for proper management, but existing methods are costly and logistically challenging. Naturally occurring stable isotopes have been used to study …
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