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- MakaleYalnız künye2017Scopus SJRQ3SPATIAL AND TEMPORAL DISTRIBUTION OF PHYTOPLANKTON IN KARKAMIS DAM LAKE (SANLIURFA/TURKEY)
Sonmez, Feray; Kutlu, Banu; Sesli, Ahmet
The environmental factors that affect the seasonal change of the phytoplankton community and composition in Karkamis Dam Lake were investigated on samples taken from five stations between January 2015 and December 2015. It was found that the phytoplankton of Karkamis Dam Lake consisted of 85 taxa belonging to Bacillariophyta (56 taxa), Chlorophyta (15 taxa), Chrysophyta (1 taxon), Cyanophyta (10 taxa), Dinophyta (2 taxa) and Euglenophyta (1 taxon). Members of Bacillariophyta and Chrysophyta increased well during spring, summer and also at the end of fall whilst Chlorophyta grew well only in summer and fall. Cyanophyta became dominant at the end of spring and in summer. However Dinophyta was remarkably conspicuous in winter as well as in spring and fall in terms of prevalence. Excessive reproduction of Cyanobacteria, which is a characteristic aspect of mesotrophic lakes, was observed in Karkamis Dam Lake in both May and July. Results of physical and chemical measurements and analysis indicated that the lake was mesotrophic based on PCA and Carlson trophic state index. Phytoplankton composition was found to be affected by environmental factors such as temperature, pH, dissolved oxygen, phosphate and nitrate through the year. Using these data, a strong model was developed for sustainable management in Karkamis Dam Lake.
AtıfWoS3
İncele - MakaleYalnız künye2012Scopus SJRQ4Phytoplankton growth and microzooplankton grazing in the Homa Lagoon (Izmir Bay, Turkey)
Banu, Kutlu
Phytoplankton growth and microzooplankton grazing were investigated at one station in the Homa Lagoon from February to January in 2006-2007. Our results showed significant seasonal variations in phytoplankton dynamics. Microzooplankton was mainly composed of dinoflagellates and tintinnid ciliates and nauplii. Microzooplankton grazing increased with increasing of temperature. Grazing rate was maximum levels in spring and summer. Microphytoplankton, which dominated the total algal biomass and production, were characterized by the proliferation of several chain-forming diatoms. Small heterotrophic flagellates and aloricate ciliates were the main controllers of phytoplankton. Phytoplankton represented a significant for micrograzers, which grazing represented 20-120% of diatom and cynabacteria algal production during 2006-2007. Microzooplankton has, however, a relatively high impact on microphytoplankton, as > 45% of microalgal production was consumed throughout the year. These results suggest that the low grazing was one of the factors contributing to the development of the spring bloom. All of seasonal bases, the phytoplankton production were grazed by microzooplankton in summer, autumn and winter-spring seasons have been changing between 20%-120%. The seasonal variation in the microzooplankton grazing pressure seems to result from the dominant size class of the phytoplankton community of this lagoon diatom and cynabacteria.
AtıfWoS1İncele - MakaleYalnız künye2011Scopus SJRQ4Investigations on the growth kinetics of hantzschia amphioxys homa lagoon by izmir bay (Aegean Sea)
Kutlu, Banu; Buyukisik, Baha
zschia amphiarys were investigated under continuous-light period and batch culture conditions. The optimum temperature and light intensities were found as 18 degrees C and 52 mu mol/m(2)s (saturasyon light), respectively. mu(max) and K-s values estimated for each nutrient were obtained as follows: ammonia for 1.528 day(-1) 2.959 mu g-at- NH4+-N/L, nitrate 1.22 day(-1), 7.01 mu g-at NO3- -N/L, phosphate 1.767 and 1.172 day(-1) 5.07 and 0.460 mu g-at PO4-(3)-P/L, silicate 1.141 day(-1) and 0,499 mu g-at Si/L. Carrying capacity values estimated for each nutrients were obtained as follows: nitrate 113,7 mu g chl a/L, 190.11 phosphate 113.7 mu g chl a/L, 1.798. Nitrogen limiting nutrients was found as in this study.
AtıfWoS2İncele