@article{447d246e3a8b46f99f03ddf53c1072f6,
title = "In situ measured seasonal variations in Fv/Fm of two common Red Sea corals",
abstract = "Pulse amplitude modulated (PAM) fluorometry has been suggested as a tool for estimating environmental stresses on corals. However, information regarding natural changes in maximal quantum yields (Fv/Fm) of corals during {"}normal{"} (i.e. non-bleaching) years has been limited. In this study, seasonal variations in Fv/Fm for Stylophora pistillata and Favia favus, measured in situ, correlated with seasonal changes in solar irradiance but not in sea temperature. Interactions between sea temperature and irradiance were further studied by growing these corals and Pocillopora damicornis under controlled conditions. Exposure to high light with normal or high temperatures resulted in lower Fv/Fm values than exposure to low light at both temperatures. Thus, high irradiances may cause decreased Fv/Fm values in corals at least as much as, if not more than, high temperatures. Such seasonal variations should be taken into account when using PAM fluorometry as a diagnostic tool for predicting coral bleaching.",
keywords = "Coral bleaching, Coral monitoring, Irradiance, Maximal quantum yield (F/F), PAM fluorometry, Red Sea",
author = "Gidon Winters and Yossi Loya and Sven Beer",
note = "Funding Information: Acknowledgments Funding from the RuVord Foundation for Nature Conservation and PADI Foundation to GW, and from the Israel Science Foundation and the Raynor Chair for Environmental Conservation Research to YL, is greatly acknowledged.",
year = "2006",
month = nov,
doi = "10.1007/s00338-006-0144-3",
language = "אנגלית",
volume = "25",
pages = "593--598",
journal = "Coral Reefs",
issn = "0722-4028",
publisher = "Springer Nature",
number = "4",
}