Scattering and attenuation properties of Emiliania huxleyi cells and their detached coccoliths

Kenneth Voss, William M. Balch, Katherine A. Kilpatrick

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Measurements of the spectral scattering and attenuation properties of coccolithophores (Emiliania huxleyi; clone 88E) and their associated coccoliths were made for three growth phases as well as for acidified cultures. These measurements allow a clean separation and determination of the optical effects of the various components. The beam attenuation cross sections (m2 particle-1) were found to be 8.4E-12, 2.6E-10, and 4.9E-11 for coccoliths, plated cells, and naked cells, respectively, at 440 nm. The spectral dependence of these factors followed a power law dependence, with a wavelength exponent of -1.9, 0.42, and -0.52 for the coccoliths, plated cells, and naked cells. The volume scattering functions for all appeared similar; however, the backscattering cross sections (m2 particle-1) at 456 nm were 1.4E-13, 6.7E-12, and 9.9E-13, respectively. The wavelength dependence of this parameter also followed a power law and was -1.4, -1.2, and -1.0. Overall, these results show that optical properties of a coccolithophore bloom are sensitive to the coccolith:cell ratio and can vary between and within blooms.

Original languageEnglish (US)
Pages (from-to)870-876
Number of pages7
JournalLimnology and Oceanography
Volume43
Issue number5
StatePublished - Jul 1998

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Emiliania huxleyi
algal bloom
power law
cross section
scattering
wavelength
coccolith
optical property
clone
cells
wavelengths
optical properties
particle
clones
effect
parameter

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography

Cite this

Scattering and attenuation properties of Emiliania huxleyi cells and their detached coccoliths. / Voss, Kenneth; Balch, William M.; Kilpatrick, Katherine A.

In: Limnology and Oceanography, Vol. 43, No. 5, 07.1998, p. 870-876.

Research output: Contribution to journalArticle

Voss, Kenneth ; Balch, William M. ; Kilpatrick, Katherine A. / Scattering and attenuation properties of Emiliania huxleyi cells and their detached coccoliths. In: Limnology and Oceanography. 1998 ; Vol. 43, No. 5. pp. 870-876.
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