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Showing 1 to 20 of 41 for “"Embayments"”.
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Tidal velocity asymmetries and bedload transport in shallow embayments
Tidally forced circulation can cause a net near-bed transport of sediment when the tidal velocity is asymmetric about a zero mean (flood or ebb dominant) and the transport rate is nonlinearly related to velocity. The relationship between elevation and velocity is elucidated here to enable one to …
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Microbial food web interactions in two Long Island embayments
Phytoplankton mortality (herbivory) and bacterivory were examined experimentally in West Neck Bay and Coecles Harbor, Long Island, NY from April through September, 1998. Small algae (<5 μm diameter) dominated phytoplankton communities in both ecosystems throughout the summer, and zooplankton were …
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Microbial food web interactions in two Long Island embayments
Phytoplankton mortality (herbivory) and bacterivory were examined experimentally in West Neck Bay and Coecles Harbor, Long Island, NY from April through September, 1998. Small algae (<5 [tm diameter) dominated phytoplankton communities in both ecosystems throughout the summer, and zooplankton were …
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Tidal velocity asymmetries and bedload transport in shallow embayments
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1987.
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Embayments in explosive, silicic eruptions : a textural, numerical, and experimental assessment.
I explore the occurrence and formation of embayments in quartz using textural, experimental, and numerical techniques. Embayments are pockets of melt partially trapped inside of volcanic crystals. During eruption these pockets of melt quench to glass. The concentration of water within embayment …
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Fish parasites as bio-indicators of heavy metals in two South African embayments
The Cape Elephant fish (Callorhinchus capensis) and two common sand shark species (Rhinobatos annulatus and Rhinobatos blochii) were caught off False Bay and Saldanha Bay and surveyed for their parasite community in 2013 and 2014. The surveys were used to build species accumulation curves (SAC) and …
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The Importance of Thermal Habitat Quality for Pumpkinseed (Centrarchidae: Lepomis gibbosus) in Small and Constructed Coastal Embayments Along the Northwest Shoreline of Lake Ontario
Along the Toronto shoreline, small coastal embayments (0.4 – 32 ha) are being constructed or modified to restore warmwater fish habitat. I describe how Lake Ontario (hereafter the Lake) alters the thermal regime of these small coastal embayments, how the altered thermal regimes affect growth and …
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Development of a Reservoir Embayment Characterization Process to Prioritize Water Quality Improvement.
… units such as reservoir embayment areas. Embayments are prime locations to locate marinas, parks, beaches, and residential homes. Current data and information on reservoir embayments in Tennessee was assembled into a GIS-based database. Embayments of 11 main reservoirs were mapped and …
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Evaluation of a fall stocking of adult and intermediate largemouth bass (Micropterus salmoides) into two Ohio River embayments
… bass (Micropterus salmoides) into two Ohio River embayments in an attempt to supplement existing populations. Prior to stocking each fish was fitted with an anchor tag and a visible implant elastomer mark to help ensure recognition as a hatchery-origin fish. The objective of this study was to …
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Modeling the fate and transport of nitrogen and sediment within coastal embayments on St. John, U.S. Virgin Islands
… development on the water quality of coastal embayments. The sediment model considered inputs by watershed loading and losses by gravitational settling and tidal flushing. The degree of sediment stress inflicted upon each bay was evaluated using three stress metrics. The results of the …
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Habitat utilization and movement patterns of subadult largemouth bass (Micropterus salmoides) in the Ohio River
Ohio River electrofishing surveys identified embayments as preferred macrohabitat of subadult largemouth bass. Catch rates within macrohabitats were low ranging from 0.00--2.73 subadult bass/hour. Embayment electrofishing CPUE was higher than tributary or main channel except in spring, when …
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Seasonal Use of Missouri River Reservoir Deltas by Fishes
… (GIS) technology. Reservoir deltas (n=2) and embayments (n=100) were digitized to create polygons suitable for calculating geometries and I quantified changes in littoral habitats using embayment surface area, shoreline development and area of offshore features. I also quantified the growth of …
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Long-term spatiotemporal water quality and phytoplankton dynamics in Severn Sound, Ontario: a delisted great lakes area of concern
… this long-term dataset representing four embayments within Severn Sound as well as nearshore-offshore water quality in the embayments. I found statistically significant differences across stations in water quality parameters such as total phosphorus, total nitrogen, Secchi disk visibility, …
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Effects of water balance, decomposition of organic matter and photosynthesis on the chemistry and the carbon cycle in the Upper St.Lawrence River (Canada).
… (the 'Main Channel', a creek, a wetland and embayments) near the city of Cornwall, Ontario revealed more intense biogeochemical activity in near-shore ecosystems. The resulting gradients between near-shore ecosystems and the 'Main Channel' exist despite the Great Lakes' strong buffering …
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Nearshore zooplankton communities of Lake Michigan and implications for invasibility by Asian carp
… in nearshore open-water locations relative to embayments. Higher relative biomass of larger-bodied zooplankton was linked to embayments with higher primary production such as Green Bay and Michigan drowned river mouth lakes, while smaller-bodied zooplankton constituted the majority of biomass …
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Relative sea-level rise and the development of channel-fill and shallow-water sequences on Cape Cod, Massachusetts
… to flood, accommodating quiet water coastal embayments, likely protected from wave action by barrier beaches located more seaward. As relative sea-level rise continued, the coastline was driven landward over regions within the paleo-channels that formerly accommodated marsh and embayment …
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Relative sea-level rise and the development of channel-fill and shallow-water sequences on Cape Cod, Massachusetts
… to flood, accommodating quiet water coastal embayments, likely protected from wave action by barrier beaches located more seaward. As relative sea-level rise continued, the coastline was driven landward over regions within the paleo-channels that formerly accommodated marsh and embayment …
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ΓΕΩΧΗΜΕΙΑ ΠΑΡΑΚΤΙΩΝ ΙΖΗΜΑΤΩΝ (ΠΕΡΙΟΧΕΣ ΙΘΑΚΗΣ-ΚΕΦΑΛΛΗΝΙΑΣ-ΑΣΤΑΚΟΥ)
SURFACE SEDIMENTS FROM THREE SEMIENCLOSED EMBAYMENTS (ITHAKI, ARGOSTOLI AND ASTAKOS) WAS STUDIED FROM GEOCHEMISTRY, SEDIMENTOLOGY AND MINERALOGY VIEW. THE FOLLOWING CONCLUSIONS 1) THE MINERALS CONSIST MAINLY OF CALCITE; QUART, FELDSPAR, ILLITE AND CHLORITE 2) THREE DISTINCT TRANSPORT MECHANISMS …
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Tassi di risalita vs. degassamento in sistemi vulcanici basici: quantificazione del parametro tempo come fattore primario di controllo dell’esplosività delle eruzioni
… diffusione degli elementi volatili lungo gli embayments presenti in cristalli di olivina è stato impiegato per la stima dei tassi di risalita del magma per alcune eruzioni in vulcani di arco. Questo approccio misura i gradienti composizionali degli elementi volatili (ovvero H2O, CO2, S) che …
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