AuthorTanner, Rene Michelle,1963-
Food chains (Ecology)
Industrial water supply.
Committee ChairGlenn, Edward
MetadataShow full item record
PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
AbstractThe following thesis research examined the algae and invertebrates making up a food chain in two, hypersaline, industrial waste water ponds at the Palo Verde Nuclear Generating Station in Phoenix, Arizona. The ponds had high levels of total salts (65 g/I, mainly NaC1), nitrate (580 mg/1), BOD (31.6 mg/1) and algae (up to 650,000 cells/m1). Currently, the only toxic element of concern is selenium (1641 IA g/ 1) . The dominant algae were the diatoms Chaetoceros sp. and Nitzschia frustulum (Kurtz.) Grun. and the cyanobacteria, Synechococcus Nageli 1849. The only aquatic fauna were two invertebrates: Artemia sp. (brine shrimp) and Trichocorixa sp. (water boatmen). A salinity tolerance experiment on algae indicated that the current dominant species will not persist above 150 g/I salt, hence the ponds, which are not expected to reach this salininity for many years, will continue to support a food chain and attract waterfowl as the mineral content increases.
Degree ProgramSoil, Water and Environmental Science