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Studies On The Phytoplankton Of Littoral Waters Of The Arabian Gulf As Impacted By Oil Spills, Hamdan S. Al-Ghamdi
Studies On The Phytoplankton Of Littoral Waters Of The Arabian Gulf As Impacted By Oil Spills, Hamdan S. Al-Ghamdi
Masters Theses
A study of the effect of oil pollution on two intertidal areas of the Saudi Arabian Gulf coast was undertaken. One area was severely impacted by oil; the other was relatively clean. The organisms studied also indicated the effects of pollution were diatoms and blue-green algae.
Members of the diatom genus Amphora were more numerous in the clean water area than in the polluted section, confirming their preference for relatively clean habitats. Members of the diatom genus Asterionella, a more resistant group, were much more abundant in the polluted area.
Blue-green algae which also tolerate pollution were also more abundant …
An Evaluation And Comparison Of Various Diversity Indices As Illustrated By Portage Creek, Karl Josef Siebert
An Evaluation And Comparison Of Various Diversity Indices As Illustrated By Portage Creek, Karl Josef Siebert
Masters Theses
The diversity index is an established method of measuring water quality. In this study various diversity indices are evaluated for their use in a rapid, accurate, and cost effective biological monitoring program. The study investigated five diversity indices: Approximate, Brillouin's, Shannon's, Simpson's and the Sequential Comparison Index. The diversity indices were tested for accuracy and sensitivity on actual on actual macroinvertebrate samples and simulated data.
The Simposon's Index was found to provide the most accuracy and sensitivity for the indices tested. The importance of considering the evenness element of diversity indices was also supported by the study.
A Study Of Cladonia Cryptochlorophaea And Morphologically Similar Species In Illinois, Indiana, And Wisconsin, Scott S. Wilcer
A Study Of Cladonia Cryptochlorophaea And Morphologically Similar Species In Illinois, Indiana, And Wisconsin, Scott S. Wilcer
Masters Theses
Collections of Cladonias with cup-shaped podetia were made in Illinois, Indiana, and Wisconsin in order to determine the distribution of an atranorin-containing variant of Cladonia cryptochlorophaea, which was discovered in 1982 in Coles County, Illinois by Cheryl Cunningham. A second objective was a distributional study of the Cladonias having cup-shaped podetia in the same three state area.
A total of 591 specimens were collected from the three states. The collection areas for Illinois were: Jackson Hollow in Pope County, Giant City State Park and Touch of Nature Interpretive Center in Jackson and Williamson Counties, Starved Rock State Park in …