Acute Toxicity of Ammonia and Nitrite to Yellow Perch, Perca flavescens.
| dc.contributor.advisor | Dr. Thomas Losordo, Committee Member | en_US |
| dc.contributor.advisor | Dr. Cavell Brownie, Committee Member | en_US |
| dc.contributor.advisor | Dr. Harry V. Daniels, Committee Member | en_US |
| dc.contributor.author | Espey, James Lee | en_US |
| dc.date.accessioned | 2010-04-02T18:18:43Z | |
| dc.date.available | 2010-04-02T18:18:43Z | |
| dc.date.issued | 2003-07-30 | en_US |
| dc.degree.discipline | Zoology | en_US |
| dc.degree.level | thesis | en_US |
| dc.degree.name | MS | en_US |
| dc.description | North Carolina State University Theses Zoology. | |
| dc.description.abstract | A series of static toxicity tests were conducted to determine the tolerance of yellow perch to ammonia and nitrite on larvae, juvenile and adult fish. Toxicity tests on adults were conducted at 18, 22, and 25 C. The tests on larvae showed highly varible results and were ultimately inconclusive. The 96h LC50 for ammonia and nitrite to juveniles were 0.77 mg/L as NH3-N and 78.24 mg/l as NO2-N, respectively. Adult and juvenile yellow perch had similiar tolerance levels. lc50 values for ammonia and nitrite varied with temperature and were 0.64 mg/l as NH3-N and 65.8 mg/l as NO2-N, respectively at 22 C. Lower water temeprature reduced the toxicity of ammonia and nitrite to yellow perch adults significantly. At 18 C, the LC50 values and nitrite were 59% higher (1.02 mg/l as NH3-N) and 34% higher (88.5 mg/l as NO2-N), respectively than the values at 22 C. | en_US |
| dc.format | Thesis (M.S.)--North Carolina State University. | |
| dc.identifier.other | etd-07272003-163356 | en_US |
| dc.identifier.uri | http://www.lib.ncsu.edu/resolver/1840.16/2910 | |
| dc.rights | I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. | en_US |
| dc.subject | perca | en_US |
| dc.subject | perca flavescens | en_US |
| dc.subject | ammonia | en_US |
| dc.subject | nitrite | en_US |
| dc.subject | aquaculture | en_US |
| dc.title | Acute Toxicity of Ammonia and Nitrite to Yellow Perch, Perca flavescens. | en_US |
| dcterms.abstract | Keywords: perca, perca flavescens, ammonia, nitrite, aquaculture. | |
| dcterms.extent | vii, 37 pages : illustrations (some color) |
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