On site photosynthetic performance of Atlantic green algae.

Häder DP, Porst M, Lebert M (2000)

Publication Type: Journal article

Publication year: 2000


Publisher: Elsevier

Book Volume: 57

Pages Range: 159 - 168

DOI: 10.1016/S1011-1344(00)00093-2


Photosynthetic performance was measured on site in four common Atlantic green algae, Asparagopsis taxiforme, Valonia utricularia, Caulerpa racemosa and Codium taylori, in Gran Canaria, Canary Islands. The photosynthetic quantum yield was determined with a portable PAM instrument and with a diving PAM in the water column. Solar radiation was measured continuously above and in the water column by means of two three-channel dosimeters, ELDONET (Real Time Computer, Mohrendorf, Germany), in the UV-A, UV-B and PAR ranges. The effective photosynthetic quantum yield was found to be affected by exposure to solar radiation in as short as 15 min but recovered in the shade in most species within several hours. Only A. taxiforme failed to recover completely, and a 30-min exposure caused severe photoinhibition from which the algae recovered only partially. While most of the effect was due to the PAR wavelength range, the UV, and especially the UV-B, range considerably enhanced photoinhibition. In all four species, a significant inhibition was found even at their growth sites in the water column, measured with the diving PAM, at high solar angles. (C) 2000 Elsevier Science S.A. All rights reserved.

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Häder, D.-P., Porst, M., & Lebert, M. (2000). On site photosynthetic performance of Atlantic green algae. Journal of Photochemistry and Photobiology B-Biology, 57, 159 - 168. https://doi.org/10.1016/S1011-1344(00)00093-2


Häder, Donat-Peter, Markus Porst, and Michael Lebert. "On site photosynthetic performance of Atlantic green algae." Journal of Photochemistry and Photobiology B-Biology 57 (2000): 159 - 168.

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