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https://hdl.handle.net/11681/47207| Title: | Aquatic disposal field investigations, Eatons Neck disposal site, Long Island Sound : appendix F, predisposal baseline conditions of phytoplankton assemblages |
| Authors: | Nuzzi, Robert |
| Keywords: | Benthos Phytoplankton Water quality Eatons Neck (N.Y.) Water--Microbiology Dredging spoil Dredged material |
| Publisher: | U.S. Army Engineer Waterways Experiment Station |
| Series/Report no.: | Technical Report (Dredged Material Research Program (U.S.)) ; no. D-77-6; Appendix F |
| Abstract: | The major goal of the Eatons Neck disposal site field investigation was to evaluate the effects of aquatic disposal of dredged material on organisms and water quality, including the significance of physical, chemical, and biological factors that influence the rate of disposal site recolonization by benthic animals. A comprehensive research program was planned and conducted at Eatons Neck in order to evaluate cause and effect relationships associated with the impacts of open-water disposal. This volume presents the results of an investigation to determine the baseline conditions of the phytoplankton population at the disposal site for future comparison with similar data collected after the disposal of dredged material. The ultimate objective is to determine the effects of the open-water disposal of dredged material on the phytoplankton population located within the area of the Eatons Neck disposal site. By using the Shannon-Weaver and the Simpson indexes it was determined that little variation existed in the diversity of the phytoplankton population at each station (EN1, EN2, and EN3) and depth measured. The exception to this occurred in the October and June sampling periods when stations EN1 and EN2 showed distinctly different diversities for the surface, mid-depth, and near-bottom samples. The diversity of the populations at Station EN3 was approximately equal for each depth. The study concludes that, although it is difficult to draw any conclusions prior to a more thorough statistical analysis, it appears that there is little difference in the composition and abundance of the phytoplankton found at the three stations. |
| Description: | Technical Report |
| Gov't Doc #: | Technical Report D-77-6; Appendix F |
| Rights: | Approved for Public Release; Distribution is Unlimited |
| URI: | https://hdl.handle.net/11681/47207 |
| Appears in Collections: | Technical Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Technical Report D-77-6 Appendix F.pdf | 5.24 MB | Adobe PDF |  View/Open |