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  In situ profiles of phytoplankton : algal composition and biomass determined fluorometrically

Beutler, M., Wiltshire, K. H., Meyer, B., Moldaenke, C., & Dau, H. (2001). In situ profiles of phytoplankton: algal composition and biomass determined fluorometrically. In G. Hallegraeff, S. I. Blackburn, C. J. Bolch, & R. J. Lewis (Eds.), Harmful Algal Blooms 2000: Proceedings of the Ninth International Conference on Harmful Algal Blooms (pp. 202-205). Paris: UNESCO.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-DECD-F Version Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-DECE-D
Genre: Conference Paper

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 Creators:
Beutler, Martin1, Author           
Wiltshire, Karen H.1, Author           
Meyer, Barbara1, Author           
Moldaenke, Christian, Author
Dau, Holger, Author
Affiliations:
1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              

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 Abstract: A new methodology enabling rapid evaluation of the phytoplankton community structure and distribution with high spatial and temporal resolution in situ is introduced. This is based on the concept that four 'spectral groups' of phytoplankton (green, blue, brown, mixed) are each characterised by specific photosynthetic pigment compositions and, consequently, by specific excitation spectra of chlorophyll-fluorescence. We have developed a submersible fluorometer which measures the emission intensity for excitation in five characteristic wavelength ranges employing pulsed light-emitting diodes (LED’s). These five spectral excitation ranges can be used to differentiate the four spectral groups of microalgae in situ within a few seconds. In examples of depth profiles of phytoplankton populations in a eutrophic lake we also show a significant correlation of deconvoluted fluorescence profiles to corresponding biovolumes

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Language(s): eng - English
 Dates: 2001
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 8276
Other: 2133/S 37847
 Degree: -

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Title: Harmful Algal Blooms 2000
Place of Event: Hobart, Australia
Start-/End Date: 2000-02-07 - 2000-02-11

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Title: Harmful Algal Blooms 2000 : Proceedings of the Ninth International Conference on Harmful Algal Blooms
Source Genre: Proceedings
 Creator(s):
Hallegraeff, G., Editor
Blackburn, S. I., Editor
Bolch, C. J., Editor
Lewis, R. J., Editor
Affiliations:
-
Publ. Info: Paris : UNESCO
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 202 - 205 Identifier: -