000202229 001__ 202229
000202229 005__ 20181203023628.0
000202229 0247_ $$2doi$$a10.4319/lo.2014.59.3.0917
000202229 022__ $$a0024-3590
000202229 02470 $$2ISI$$a000339904300022
000202229 037__ $$aARTICLE
000202229 245__ $$aThe in situ light microenvironment of corals
000202229 260__ $$aWaco$$bAmer Soc Limnology Oceanography$$c2014
000202229 269__ $$a2014
000202229 300__ $$a10
000202229 336__ $$aJournal Articles
000202229 520__ $$aWe 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 O-2 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.
000202229 700__ $$aWangpraseurt, Daniel$$uUniv Technol Sydney, Sydney, NSW 2007, Australia
000202229 700__ $$aPolerecky, Lubos$$uMax Planck Inst Marine Mikrobiol, D-28359 Bremen, Germany
000202229 700__ $$aLarkum, Anthony W. D.$$uUniv Technol Sydney, Sydney, NSW 2007, Australia
000202229 700__ $$aRalph, Peter J.$$uUniv Technol Sydney, Sydney, NSW 2007, Australia
000202229 700__ $$aNielsen, Daniel A.$$uUniv Technol Sydney, Sydney, NSW 2007, Australia
000202229 700__ $$0246344$$aPernice, Mathieu$$g222060$$uUniv Technol Sydney, Sydney, NSW 2007, Australia
000202229 700__ $$aKuhl, Michael$$uUniv Technol Sydney, Sydney, NSW 2007, Australia
000202229 773__ $$j59$$k3$$q917-926$$tLimnology And Oceanography
000202229 909C0 $$0252432$$pIIE$$xU10265
000202229 909CO $$ooai:infoscience.tind.io:202229$$particle$$pENAC
000202229 937__ $$aEPFL-ARTICLE-202229
000202229 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000202229 980__ $$aARTICLE