Water-depth effects in photosynthetic pigment content of the benthic algae Dictyota dichotoma and Udotea petiolata

The effect of water depth on the light-harvesting pigments contents in Dictyota dichotoma (Hudson) Lamouroux and Udotea petiolata (Turra) Börgesen was studied. Both species showed higher photosynthetic-pigments contents with increased depth or shade. The ratios of chlorophyll c /chlorophyll a and ch...

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Bibliographic Details
Published in:Aquatic botany 1981, Vol.11 (4), p.373-377
Main Authors: Perez-Bermudez, P., Garcia-Carrascosa, M., Cornejo, M.J., Segura, J.
Format: Article
Language:English
Subjects:
Dictyota dichotoma
Marine
Udotea petiolata
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Summary:The effect of water depth on the light-harvesting pigments contents in Dictyota dichotoma (Hudson) Lamouroux and Udotea petiolata (Turra) Börgesen was studied. Both species showed higher photosynthetic-pigments contents with increased depth or shade. The ratios of chlorophyll c /chlorophyll a and chlorophyll b / chlrophyll a in D. dichotoma and U. petiolata were lower in light-exposed samples. In D. dichotoma, the ratios of fucoxanthin to chlorophyll a increased with depth or shade; however, it is worth noting that the 0 m (sun) samples showed the highest values. On the other hand, total carotenoids to chlorophyll a ratios in U. petiolata increased with depth.
ISSN:0304-3770
1879-1522
DOI:10.1016/0304-3770(81)90070-X