| Description |
xix, 157 leaves : illustrations, maps ; 29 cm |
| Summary |
"Aquatic biological species form food webs in the LaBranche Wetlands, Louisiana. This wetland is characterized by a series of interconnected bayous forming a network. This project integrates an aquatic food web bioaccumulation model for hydrophic organic contaminants with an efficient spatial representation of the environment. This research integrates a food web model viewed with a spatial network of the underlying geography and environmental parameters to be used as a portable tool to study other networks of interconnected waterways given the necessary geographic, environmental, physicochemical and biological input data. In particular, it targets geographic study regions (bayous) that can be represented as linear features in a spatial network model using tools available in a geographic information system (GIS). Data stored as different events on the dynamically segmented linear feature, to be used in combination with rules, allow spatial representation of different species within their natural home range. These home ranges are modeled as segments in the network, based on dynamic segmentation methodology. Food web bioaccumulation models assume steady- state and transient conditions and use average environmental parameters. The model is used as a portable tool for another site. A contaminated riverine system, the Upper East Fork Poplar Creek, Oak Ridge, TN, was selected as a test site due to the availability of input parameters"--Abstract, leaf iii. |
|
