Quantitative (Chlorophyll-a) and qualitative (species composition) seasonal fluctuations of phytoplankton in Lavan coastal waters (North of the Persian Gulf)
Phytoplankton species composition, as well as the amount of Chlorophyll-a and their relation to physicochemical parameters, were studied. The samples were collected monthly from October 1996 until September 1997 in two stations, i.e., Lavan and Douberkeh coastal waters. In this study, 65 phytoplankton species related to 3 groups of diatoms, dinoflagellates and Blue-Green Algae (24 genus and 44 species of diatoms, 6 genus and 18 species of dinoflagellates and 3 genus blue-green algae) were identified. Diatoms and dinoflagellates were abundant during periods of low salinity and temperature (November-May), while blue-green algae were abundant from July till September. Although the amount of chlorophyll-a was higher during the periods of low salinity and temperature, there was no statistically significant difference between the two stations and different seasons (p>5%). Also, there were no significant differences between such physicochemical factors as temperature, salinity, pH, and oxygen content. Transparency between the two stations showed significant differences (p<5%). Correlation matrix test showed no relationship between physicochemical parameters and the amount of chlorophyll-a in two stations. The results suggest that increasing the temperature and salinity cannot cause a significant reduction in the chlorophyll-a amount in Lavan and Douberkeh regions.
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| Format: | article biblioteca |
| Language: | English |
| Published: |
2001
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| Subjects: | Biology, Ecology, Fisheries, Phytoplankton, Seasonal fluctuations, Chlorophyll-a, Persian Gulf, Iran, |
| Online Access: | http://hdl.handle.net/1834/37043 |
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