| Publication Type: | Journal Article |
| Year of Publication: | 2007 |
| Authors: | S. Spatharis, Danielidis, D. B., Tsirtsis, G. |
| Journal: | Harmful Algae |
| Volume: | 6 |
| Pagination: | 811-822 |
| Date Published: | Nov |
| ISBN Number: | 1568-9883 |
| Keywords: | Alexandrium, bay, Coastal waters, domoic acid, episodic rainfalls, genus alexandrium, growth, hab, harmful algal blooms, Mediterranean Sea, minutum, nutrient inflows, phytoplankton blooms, Pseudo-nitzschia, runoff, vertical migration |
| Abstract: | A winter bloom dominated by Pseudo-nitzschia calliantha Lundhohn, Moestrup et Hasle (Bacillariophyceae), a potential domoic acid producer, is reported for the first time in the Aegean Sea, Greece, in a semi-enclosed embayment (Kalloni Gulf) surrounded by agricultural land and drained by intermittent rivers. Abundances of this species in the inner part of the Gulf during February were extremely high (max 1.1 x 10(7) cells l(-1)). The species Alexandrium insuetum Balech (Dinophyceae) was also found in considerable cell numbers (max 1.4 x 10(5) cells l(-1)) during the bloom and reached up to 40% of the total biovolume. This study demonstrates an evident cause and effect relationship between nutrient inflows originating from agricultural activities in the watershed and the development of a potential HAB. The massive bloom formation was observed soon after an episodic rainfall event during the fertilizer application period (December to February). A bloom was also observed the following year, but it was less pronounced due to the fact that rainfalls were more evenly spaced in time and were of moderate intensity. (C) 2007 Elsevier B.V. All rights reserved. |
| URL: | <Go to ISI>://000251470600006 |