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Effects of light and salinity on post-bleaching recovery in the jellyfish Cassiopea SP

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Date Issued:
2019
Abstract:
Cassiopea sp. was collected from the Florida Keys and used to study the effects of environmental conditions after a warming event to induce photobleaching. Jellyfish were bleached by elevating the temperature to 33 °C. Wet weight, bell diameter, pulse frequency, zooxanthellae, protein, carbohydrate, and lipid were measured in bleached and non-bleached individuals held under a salinity of 30 g kg-1, 35 g kg-1, and 40 g kg-1, and either full light exposure or partial shading after eight weeks. There were no statistical differences between any of the treatment means for bleaching, light, or salinity level; however, biological parameters indicated salinity could potentially cause a change in the physical and metabolic properties of the jellyfish. An initial sample indicated that Cassiopea sp. in this study may not have fully bleached at 33 °C; that outcome, together with the bleached group recovering to non-bleached levels, indicates Cassiopea sp. is resilient/resistant to some thermal increase.
Title: Effects of light and salinity on post-bleaching recovery in the jellyfish Cassiopea SP.
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Name(s): Maloney, Megan Elizabeth, author.
Type of Resource: text
Genre: Bibliography
Text-txt
Academic Theses.
Electronic Thesis Or Dissertation.
Issuance: monographic
Date Issued: 2019
Date Issued: 2019
Other Date: 2019.
Publisher: University of West Florida,
Place of Publication: Pensacola, Florida :
Physical Form: electronic resource
Extent: 1 online resource (vii, 53 leaves : charts)
Language(s): eng
Abstract: Cassiopea sp. was collected from the Florida Keys and used to study the effects of environmental conditions after a warming event to induce photobleaching. Jellyfish were bleached by elevating the temperature to 33 °C. Wet weight, bell diameter, pulse frequency, zooxanthellae, protein, carbohydrate, and lipid were measured in bleached and non-bleached individuals held under a salinity of 30 g kg-1, 35 g kg-1, and 40 g kg-1, and either full light exposure or partial shading after eight weeks. There were no statistical differences between any of the treatment means for bleaching, light, or salinity level; however, biological parameters indicated salinity could potentially cause a change in the physical and metabolic properties of the jellyfish. An initial sample indicated that Cassiopea sp. in this study may not have fully bleached at 33 °C; that outcome, together with the bleached group recovering to non-bleached levels, indicates Cassiopea sp. is resilient/resistant to some thermal increase.
Identifier: 1152895670 (oclc), WFE0000693 (IID)
Note(s): by Megan Elizabeth Maloney.
Department of Biology, Hal Marcus College of Science and Engineering
Advisor: Christopher M. Pomory.
Thesis (M.S.) University of West Florida 2019
Includes bibliographical references.
Also available in print.
Subject(s): University of West Florida
Jellyfishes
Rhizostomeae
Academic theses
Library Classification: LD1807.F62k 2019 M356
Persistent Link to This Record: http://purl.flvc.org/uwf/fd/WFE0000693
Use and Reproduction: http://rightsstatements.org/vocab/InC-EDU/1.0/
Host Institution: UWF
Other Format: Effects of light and salinity on post-bleaching recovery in the jellyfish Cassiopea SP. (Print version:)
(OCoLC)1152895650

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