Read Cold induces acute stress but heat is ultimately more deleterious for the reef-building coral Acropora yongei. - MS Roth Affiliation: Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA. melissasroth@gmail.com; R Goericke; DD Deheyn | PDF Online

Download Cold induces acute stress but heat is ultimately more deleterious for the reef-building coral Acropora yongei. - MS Roth Affiliation: Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA. melissasroth@gmail.com; R Goericke; DD Deheyn file in PDF

Document Type: Article All Authors / Contributors: MS Roth Affiliation: Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA. melissasroth@gmail.com; R Goericke; DD Deheyn Language Note: English Unique Identifier: 777988889 Notes: Original DateCompleted: 20120910 Awards: Abstract: Climate change driven increases in intensity and frequency of both hot and cold extreme events contribute to coral reef decline by causing widespread coral bleaching and mortality. Here, we show that hot and cold temperature changes cause distinct physiological responses on different time scales in reef-building corals. We exposed the branching coral Acropora yongei in individual aquaria to a ± 5°C temperature change. Compared to heat-treated corals, cold-treated corals initially show greater declines in growth and increases in photosynthetic pressure. However, after 2-3 weeks, cold-treated corals acclimate and show improvements in physiological state. In contrast, heat did not initially harm photochemical efficiency, but after a delay, photosynthetic pressure increased rapidly and corals experienced severe bleaching and cessation of growth. These results suggest that short-term cold temperature is more damaging for branching corals than short-term warm temperature, whereas long-term elevated temperature is more harmful than long-term depressed temperature.

Title : Cold induces acute stress but heat is ultimately more deleterious for the reef-building coral Acropora yongei.
Author : MS Roth Affiliation: Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA. melissasroth@gmail.com; R Goericke; DD Deheyn
Language : en
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Type : PDF, ePub, Kindle
Uploaded : Apr 12, 2021

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