Please use this identifier to cite or link to this item:
|Title:||The in situ light microenvironment of corals||Authors:||Wangpraseurt, Daniel
Larkum, Anthony W. D.
Ralph, Peter J.
Nielsen, Daniel A.
|Keywords:||DRNTU::Science::Biological sciences||Issue Date:||2014||Source:||Wangpraseurt, D., Polerecky, L., Larkum, A. W. D., Ralph, P. J., Nielsen, D. A., Pernice, M., et al. (2014). The in situ light microenvironment of corals. Limnology and Oceanography, 59(3), 917-926.||Series/Report no.:||Limnology and oceanography||Abstract:||We used a novel diver-operated microsensor system to collect in situ spectrally resolved light fields on corals with a micrometer spatial resolution. The light microenvironment differed between polyp and coenosarc tissues with scalar irradiance (400–700 nm) over polyp tissue, attenuating between 5.1- and 7.8-fold from top to base of small hemispherical coral colonies, whereas attenuation was at most 1.5-fold for coenosarc tissue. Fluctuations in ambient solar irradiance induced changes in light and oxygen microenvironments, which were more pronounced and faster in coenosarc compared with polyp tissue. Backscattered light from the surrounding benthos contributed > 20% of total scalar irradiance at the coral tissue surface and enhanced symbiont photosynthesis and the local O2 concentration, indicating an important role of benthos optics for coral ecophysiology. Light fields on corals are species and tissue specific and exhibit pronounced variation on scales from micrometers to decimeters. Consequently, the distribution, genetic diversity, and physiology of coral symbionts must be coupled with the measurements of their actual light microenvironment to achieve a more comprehensive understanding of coral ecophysiology.||URI:||https://hdl.handle.net/10356/104046
|ISSN:||0024-3590||DOI:||10.4319/lo.2014.59.3.0917||Rights:||© 2014 the Association for the Sciences of Limnology and Oceanography, Inc. This paper was published in Limnology and Oceanography and is made available as an electronic reprint (preprint) with permission of E2014, by the Association for the Sciences of Limnology and Oceanography, Inc. The paper can be found at the following official DOI: [http://dx.doi.org/10.4319/lo.2014.59.3.0917]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SBS Journal Articles|
SCELSE Journal Articles
Updated on Jan 26, 2023
Web of ScienceTM
Updated on Jan 21, 2023
Page view(s) 50530
Updated on Feb 5, 2023
Updated on Feb 5, 2023
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.