The effects of fluorinated water on the growth and molting of blue crabs / by Frank K. Arey.
| Author/creator | Arey, Frank Kestler, 1953- author. |
| Other author | Heckel, Edgar, degree supervisor. |
| Other author | East Carolina University. Department of Chemistry. |
| Format | Theses and dissertations |
| Production | 1979. |
| Description | 62 leaves : illustrations ; 28 cm |
| Supplemental Content | Access via ScholarShip |
| Subjects |
| Summary | Experimental conditions were developed for a long-term maintenance of blue crabs in a laboratory for the purpose of a study of the effects of fluorinated water on the growth and molting. This study included a detailed investigation on the calcium metabolism during the molting cycles of the blue crabs. The analysis of a series of crab tissue and exoskeleton samples were carried out to determine the amounts of fluoride and calcium in the samples. The fluoride concentrations of the samples were determined through the use of a fluoride ion-selective electrode. The measurements were taken using TISAB as a buffer. The data collected were computer processed to eliminate the time dependence of the electrode response. The calcium analyses were carried out using two different methods. The first method involved the use of the calcium ion-sensitive electrode. The second method made use of a chelometric indicator titration in conjunction with the cupric ion-selective electrode and using a O.1M EGTA solution as the titrant. The experimental data showed that, despite significantly different concentrations of fluoride and calcium in tissue and exoskeleton, the growth and molting of blue crabs was not affected beyond the limits of experimental errors in 10°/oo salt water containing 30 ppm of fluoride. |
| Local note | Joyner-"Presented to the faculty of the Department of Chemistry ... in partial fulfillment of the requirements for the degree Master or Science in Chemistry." |
| General note | Vita. |
| General note | Presented to the faculty of the Department of Chemistry. |
| General note | Advisor: Edgar Heckel |
| Dissertation note | M.S. East Carolina University 1979 |
| Bibliography note | Includes bibliographical references (leaves 58-60). |
| Genre/form | Academic theses. |
| Genre/form | Academic theses. |
| Genre/form | Thèses et écrits académiques. |
Availability
| Library | Location | Call Number | Status | Item Actions |
|---|---|---|---|---|
| Joyner | University Archives | ASK AT SPECIAL COLLECTIONS DESK | ✔ Available | Request Material |
| Joyner | General Stacks | QP912.F6 A7X | ✔ Available | Place Hold |
| Electronic Resources | Access Content Online | ✔ Available |