This environmental research was conducted on the coastal water of Tartous city for the first time to complement previous studies along the Syrian coast. Sampling station were selected based on their different environmental characteristics from each o
thers on one hand, and their continuous exposure to the sources of pollution (oil, chemical, organic) on the other hand. It hasbeen implemented13sortiesfreelyduring the study period, which lasted fromSeptember2013untilSeptember2014. during which water samples were collected for analysis and determine the concentration of nutrients in, as vital samples to study and determine the types of phytoplankton, which collected, in addition to conducting field measurements of some properties Physical seawater (temperature, pH, salinity, oxygen dissolved concentration). This study has recorded 160 species of phytoplankton in study sites, distributed as follows: 91 species of Chryssophyta, 50 of Pyrrophyta, 11 of Chlorophyta, and 8 of Cyanophyta, their distribution has differed from one site to another and from month to monthaccordingto the differentiation in the environmental conditions.
This research aims to study the distribution of Phytoplankton in four locations which have different environmental specifications, in addition to study some environmental factors of Alhaffeh Dam water that affect the distribution of the phytoplankt
on (Temperature ,BOD, DO, pH, NO3, NO2, NH4, PO4). Samples were collected from different locations of the Dam basin from June 2011 to May 2012 once or twice a month. (84) species of Phytoplankton were identified and were distributed as: (38) species of Chrysophyta, (36) species of Diatomophyceae, (2) species of Chrysophycea, (25) species of Chlorophyta, (20) species of Cyanophyta, (2) species of Pyrrhophyta, and (5) species of Euglenophyta. The results show apparent changes in physical and chemical properties of water during this study. This is the first study of the phytoplankton on the water of Alhaffeh Dam.
This study describes the changes in species composition of phytoplankton under different
Si:N ratios from spring to summer of 2010 and 2011. For this purpose, natural
Phytoplankton was cultured in mesocosmic experiments at two stations in the north
ern part
of Latakia coastal water. The abundance of phytoplankton was measured, and the specific
composition of phytoplankton was determined. Diatoms dominated during 2010 and 2011,
while Dinoflagellates did not compete with diatoms during this study. The enrichment experiment
affected the species composition of the diatoms themselves, where the species
Pseudo-nitzschia pseudodelicatissima Schil and Leptocylindrus danicus Cleve dominated
under different Si:N ratios.
