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Temperature and Salinity Response Surface Analysis of a Subtropical Oyster Crassostrea virginica (Gmelin, 1791)
| Title: | Temperature and Salinity Response Surface Analysis of a Subtropical Oyster Crassostrea virginica (Gmelin, 1791). |
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| Name(s): |
DiGialleonardo, Julian J. Roesijadi, Guritno, Thesis advisor Florida Atlantic University, Degree grantor |
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| Type of Resource: | text | |
| Genre: | Electronic Thesis Or Dissertation | |
| Date Created: | 2007 | |
| Date Issued: | 2007 | |
| Publisher: | Florida Atlantic University | |
| Place of Publication: | Boca Raton, Fla. | |
| Physical Form: | application/pdf | |
| Extent: | 64 p. | |
| Language(s): | English | |
| Summary: | Anthropogenic modifications to' the St. Lucie River watershed have significantly altered the patterns offreshwater flow, resulting in extreme changes of salinity and the subsequent decline in the health ofthe estuary. While much is already reported for the response of Crassostrea virginica to temperature and salinity, distinct differences exist along its distribution range warranting site specific assessments for previously unstudied populations. A modified Central Composite Inscribed response surface analysis was designed to describe the response of the local C. virginica population to a range of endemic salinity and temperature combinations. Controlled temperature and salinity studies were carried out at the Gumbo Limbo Marine Science Center in a mesocosm facility specifically designed and constructed for this project. Condition index and RNA:DNA ratio served as response measures. Minimum values for condition index were observed at combinations of high temperatures(> 25 °C) and low salinities (< 5 psu). The analysis of oyster RNA: DNA ratios showed a similar pattern of response, although, in this case, its relationship with temperature and salinity was not as strong. The final models for mean condition index and the RNA:DNA ratios explained 77.3% and 35.8% of the respective variances. | |
| Identifier: | FA00000745 (IID) | |
| Collection: | FAU Electronic Theses and Dissertations Collection | |
| Note(s): |
Includes bibliography. Thesis (M.S.)--Florida Atlantic University, 2007. Charles E. Schmidt College of Science |
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| Subject(s): |
Oyster culture--Florida--Saint Lucie River Response surfaces (Statistics) Stream measurements--Florida Marine ecology |
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| Held by: | Florida Atlantic University Libraries | |
| Persistent Link to This Record: | http://purl.flvc.org/fau/fd/FA00000745 | |
| Sublocation: | Digital Library | |
| Use and Reproduction: | Copyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder. | |
| Use and Reproduction: | http://rightsstatements.org/vocab/InC/1.0/ | |
| Host Institution: | FAU | |
| Is Part of Series: | Florida Atlantic University Digital Library Collections. |
