Tri-level trophic interactions in a North Carolina seagrass bed / by David R. Gloeckner.
| Author/creator | Gloeckner, David R. author. |
| Other author | Luczkovich, Joseph J., degree supervisor. |
| Other author | East Carolina University. Department of Biology. |
| Format | Theses and dissertations |
| Production | 2002. |
| Description | vii, 149 leaves : illustrations ; 28 cm |
| Supplemental Content | Access via ScholarShip |
| Subjects |
| Summary | Trophic impact analysis of the St. Marks Bay, FL network model predicts that juvenile gulf flounder have a positive impact on polychaete biomass and a negative impact on juvenile spot and pinfish biomass in seagrass beds. I tested the results from the trophic impacts analysis in seagrass beds near Marker's Island, NC. I used cages to enclose the seagrass bed and exclude predators, and added gulf flounder and spot to the cages in one treatment, and spot alone in another treatment. At the end of the experiment I analyzed the biomass of polychaetes and analyzed the biomass and gut contents of spot and pinfish. The research took place during April 2002, a time of the year when the environmental conditions at this site closely resemble the conditions that were present at St. Marks Bay when the data for the model were collected. Means of the biomasses obtained for the polychaetes, spot and pinfish and gut contents conformed to the predictions of the model, but the data were highly variable due to some recruitment of pinfish into the cages. When the biomasses of spot, pinfish, polychaete and gut content were analyzed as a multivariate response, the results indicated that the St. Marks network model accurately predicted the effects gulf flounder had on the compartments I tested. |
| General note | Presented to the faculty of the Department of Biology. |
| General note | Advisor: Joseph J. Luczkovich |
| Dissertation note | M.S. East Carolina University 2002 |
| Bibliography note | Includes bibliographical references (leaves 81-86). |
| 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 |
| Electronic Resources | Access Content Online | ✔ Available |