Phytoplankton in relation with nutrient concentrations in the Ría de Arosa
Campos-Loriz, M.-J.; González, N. (1976). Phytoplankton in relation with nutrient concentrations in the Ría de Arosa, in: Persoone, G. et al. (Ed.) Proceedings of the 10th European Symposium on Marine Biology, Ostend, Belgium, Sept. 17-23, 1975: 2. Population dynamics of marine organisms in relation with nutrient cycling in shallow waters. pp. 111-125
In: Persoone, G.; Jaspers, E. (Ed.) (1976). Proceedings of the 10th European Symposium on Marine Biology, Ostend, Belgium, Sept. 17-23, 1975: 2. Population dynamics of marine organisms in relation with nutrient cycling in shallow waters. European Marine Biology Symposia, 10(2). IZWO/Universa Press: Wetteren. ISBN 90-6281-002-0. 712 pp., more
In: European Marine Biology Symposia., more
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Document type: Conference paper
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| Authors | | Top |
- Campos-Loriz, M.-J.
- González, N.
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| Abstract |
Annual fluctuations in the phytoplankton of the Ría de Arosa, northwest Spain, are related not only to seasonal changes, but also to a periodic upwelling phenomenon. There was a maximum biomass in the spring and a minimum in the summer and winter. The summer minimum corresponded to a period of non-upwelling. In contrast, the winter loW occurred during a period of high nutrient-intrusion, but loW lights levels. In the less productive months, the biomass was higher in the inner part of the estuary while in the most productive months it was higher in the middle part of the ria (stations numbers 7, and 9). Month, depth and place were relevant in the distribution of diversity. Diversity was loW during the most productive months and higher during the poorest. The vertical distribution of diversity Corresponded with the biomass, So it was generally higher in the subsurface. |
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