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The Relationship Between Seasonal Variation In Phytoplankton And Zooplankton Densities In Hirfanlı Dam Lake (Kırşehir, Turkey), Tülay Baykal, Selahatti̇n Salman, İlkay Açikgöz
The Relationship Between Seasonal Variation In Phytoplankton And Zooplankton Densities In Hirfanlı Dam Lake (Kırşehir, Turkey), Tülay Baykal, Selahatti̇n Salman, İlkay Açikgöz
Turkish Journal of Biology
Phytoplankton and zooplankton densities in Hirfanlı Dam Lake were studied between July 1999 and June 2000. In addition, phytoplankton biomass was measured using chlorophyll a concentration. The density of Cladocera at the surface and that of Rotifera at the bottom were low in the summer months. For phytoplankton, Cyclostephanos dubius (Fricke) Round was dominant. The variation in the density of organisms did not follow a known pattern. Species composition, seasonal distribution and species density variations show that the lake was advanced mesotrophic. The lake was alkaline and, from time to time, there was an odor in the littoral regions where …
New Record Of A Dinoflagellate Species Corythodinium Tesselatum (Stein) Loeblich Jr. & Loeblich Iii From Turkish Coastal Waters Of The North-Eastern Mediterranean Sea, Seyfetti̇n Taş, Erdoğan Okuş, Tufan Koray
New Record Of A Dinoflagellate Species Corythodinium Tesselatum (Stein) Loeblich Jr. & Loeblich Iii From Turkish Coastal Waters Of The North-Eastern Mediterranean Sea, Seyfetti̇n Taş, Erdoğan Okuş, Tufan Koray
Turkish Journal of Botany
The dinoflagellate genus Corythodinium (Stein) Loeblich Jr. & Loeblich III and one species belonging to this genus, Corythodinium tesselatum (Stein) Loeblich Jr. & Loeblich III, are reported for the first time from the coastal waters of Turkey (north-eastern Mediterranean). The morphological characteristics of this species are described and information about its ecological distribution is given.
New Records Of The Dictyocha Antarctica Lohmann, Dictyocha Crux Ehrenberg And Nitzschia Rectilonga Takano Species From The Sea Of Marmara, Ni̇yazi̇ Deni̇z, Seyfetti̇n Taş, Tufan Koray
New Records Of The Dictyocha Antarctica Lohmann, Dictyocha Crux Ehrenberg And Nitzschia Rectilonga Takano Species From The Sea Of Marmara, Ni̇yazi̇ Deni̇z, Seyfetti̇n Taş, Tufan Koray
Turkish Journal of Botany
The silicoflagellate species Dictyocha antarctica Lohmann, Dictyocha crux Ehrenb. and the diatom species Nitzschia rectilonga Takano are reported for the first time from the coastal waters of the north-eastern Sea of Marmara (lat. 40º 45.80' N - 40º 58.00' N, long. 28º 36.00' E - 29º 13.60' E) and also from the coastal waters of Turkey. Descriptions of these species are given in this paper.
Seasonal Variation Of Phytoplankton And Value Of Chlorophyll A In The Sarıyar Dam Reservoir (Ankara, Turkey), Tahi̇r Atici, Olcay Obali
Seasonal Variation Of Phytoplankton And Value Of Chlorophyll A In The Sarıyar Dam Reservoir (Ankara, Turkey), Tahi̇r Atici, Olcay Obali
Turkish Journal of Botany
The phytoplanktonic algae were determined in samples taken from 7 different locations at the Sarıyar Dam Reservoir (SDR) from March 1996 to June 1997. The seasonal variation of phytoplankton and their chlorophyll a were determined and contents were discussed in relation to the physical and chemical parameters of the water. The divisions Bacillariophyta and Chlorophyta were dominant; however, Cyclotella, Navicula, Nitzschia and Synedra of Bacillariophyta, and Chlorella and Scenedesmus of Chlorophyta were abundant. Chlorophyll a reached its maximum levels during June and September 1996 and May 1997, corresponding to the maximum values of orthophosphate, sulphate, calcium and temperature in the …
Red Tide Observations Along The Eastern Black Sea Coast Of Turkey, Ali̇ Muzaffer Feyzi̇oğlu, Hamdi̇ Öğüt
Red Tide Observations Along The Eastern Black Sea Coast Of Turkey, Ali̇ Muzaffer Feyzi̇oğlu, Hamdi̇ Öğüt
Turkish Journal of Botany
To determine the occurrence of dominant phytoplanktonic species causing red tides along the eastern Black Sea (Trabzon) coast of Turkey, multiple samples were collected periodically between 1991 and 2001. Red tide events were observed only during the periods between February and July. Six phytoplanktonic species causing 5 red tide events detected were Diplopsalis lenticula, Euglena acusformis, Eutreptia lanowii, Pyramimonas orientalis, Scrippsiella trochoidea, and Gymnodinium sanguineum. Numeric density of species during the red tide events ranged between 0.97 x 10^6 and 356 x 10^6 cells l^{-1}. During the red tides, the highest level of chlorophyll-a biomass ranged between 4.6 and 54.87 …