Aquatic Sciences Meeting, Albuquerque 2001

PC03 Undergraduate Education

Date: Tuesday, February 13, 2001

Location: Southwest Hall

Snyder, C, L, Virginia Institute of Marine Science REU, Gloucester Point, USA, clsnyd@wm.edu

TEMPORAL AND SPATIAL DISTRIBUTION OF THE ACTIVE MUD LAYER OF THE YORK RIVER ESTUARY

The York River is a partially mixed, microtidal (spring tidal range < 2m) estuary. This physical energy facilitates movement of active mud deposits. A series of cruises were taken on the York River to collect cores for research on the spatial and temporal distribution of the active mud layer. Subsampling methods including 7-BE activity, chl-a presence, Eh profiling, x-radiographs; porosity, grain size, and resistivity were used to determine if areas of erosion and deposition exist within the active mud layer. Analysis of data obtained from these methods with specific emphasis on 7-BE and Eh profiles indicates that such areas probably exist. Data collected also indicates that movement of the active mud layer may follow a spring-neap cycle. More systematic cruises and data collection are needed to fully understand the movement of the York River's active mud layer.

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Aquatic Sciences Meeting, Albuquerque 2001

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