Current Search:   Perez, Santiago F. (x)

View All Items

  • CSV Spreadsheet
(1 - 2 of 2)
The role of symbiotic dinoflagellates in the temperature-induced bleaching response of the subtropical sea anemone Aiptasia pallida
Title
The role of symbiotic dinoflagellates in the temperature-induced bleaching response of the subtropical sea anemone Aiptasia pallida.
Creator
Perez, Santiago F., Cook, Clayton B., Brooks, W. Randy
Date Issued
2001
PURL
http://purl.flvc.org/FCLA/DT/3165425
Subject Headings
Coral bleaching, Dinoflagellates, Zooxanthella, Sea anemones, Symbiosis, Photosynthesis
Format
Document (PDF)
The role of symbiotic dinoflagellates in the temperature-induced bleaching response of Aiptasia pallida
Title
The role of symbiotic dinoflagellates in the temperature-induced bleaching response of Aiptasia pallida.
Creator
Perez, Santiago F., Florida Atlantic University, Marsh, G. Alex, Cook, Clayton B., Brooks, W. Randy, Koch, Marguerite
Abstract/Description
Bleaching of reef corals and other cnidarians symbiotic with zooxanthellae can be attributed to the stress response of the host, algae or both. To determine if zooxanthellae are involved in the bleaching process, I infected a single strain of sea anemone, Aiptasia pallida with zooxanthellae from different hosts. I measured expulsion of the algae from the host during 24-hour incubations at 25, 32 and 34C, as well as photosynthetic rates at these temperatures. Photosynthesis and expulsion of...
Show moreBleaching of reef corals and other cnidarians symbiotic with zooxanthellae can be attributed to the stress response of the host, algae or both. To determine if zooxanthellae are involved in the bleaching process, I infected a single strain of sea anemone, Aiptasia pallida with zooxanthellae from different hosts. I measured expulsion of the algae from the host during 24-hour incubations at 25, 32 and 34C, as well as photosynthetic rates at these temperatures. Photosynthesis and expulsion of zooxanthellae were inversely and directly proportional to elevated temperatures, respectively. Photosynthesis and expulsion of zooxanthellae isolated from Condylactis gigantea showed the greatest sensitivity to elevated temperature when compared to other zooxanthellae tested. These results suggest that zooxanthellae have a function in the bleaching process and that this function may be related to their photosynthetic response. Thus, the differential tolerance of zooxanthellae to stress could partly explain the spatial variability characteristic of coral-bleaching episodes.
Show less
Date Issued
1999
PURL
http://purl.flvc.org/fcla/dt/15698
Subject Headings
Dinoflagellates, Sea anemones, Coral reef ecology, Seawater--Thermal properties
Format
Document (PDF)