İzmir Körfezi`nin mikroplanktonunda meydana gelen değişimlerde ortam faktörlerinin rolü

Abstract

144a VI- ABSTRACT At the end of this investigation about ecology and dynamics of nanoplankton and one-celled microplankton İn Izmir Bay, 103 Diatoroophyceae, 3 Silieoflagellata, 1 Euglenophyceae, 111 Dinoflagellata, I Ebriida, 1 Radiolaria and 47 Tintinnida (Ciliata) members (including varietes) were determined. The qualitative and quantitative analyses indicated that the oligotrophic Aegean water masses were active in the west of the Güzelyalı-Eski Gediz Ağzı line and the eutrophic Inner Bay water masses were mixed in the oligotrophic water periodically at the east of the line, and this event caused the blooms of the phytoplanktonic species. The diatoms like C. af finis. C. bergoni. L. danicusf £. minimus. L. boreal is. N. closterium. N. şeriata f P. tricornutum. P. elongatum. R. fragilissima. R. setigera and.T. rotula were the most important blooming species in the Inner Bay and the dinoflagellates like G. tamarensis. P. steini and P. micans which were tolerant at high levels of nutrients were active during the investigation period at the harbour region. Generally, the dino flagellate P. steini was the most important element of the dinoflagellate community and the other blooming species were C. furca var. furca. C. fusus var. gçta, £. / tamarensis. 0. scolopax. Pc diabolus var. longir>esf P. steini. P. micans. The Tintinnida member H. subulata affected the species diversity of this group during all of the year and E. lusus- undae, H. edentata^ S. curta, T. -beroidea, T. cylindrica,-- - - T. hana were the other important species. _ _ _ - ``. _.144b Although the reactions of the groups investigated were different to the high level of nutrients in the environment, the higher levels of ammonium nitrogen from 500 ugr/lt., nitrate nitrogen from 150 ugr/lt., nitrite nitrogen from 50 ^igr/lt,, phosphate phosphorus from 250 Tigr/lt> and silicium from 0o8 ppm. affected the community structure and the dominance of the few species was observed. The absorption of the domestic nutrients by the photosynthetic organisms between March and November could not decrease the nutrient levels to the normal conditions and on the contrary, the abnormal biomass which was occured as a result of blooms, increased the nutrient levels by decaying in, the sediment»

144a VI- ABSTRACT At the end of this investigation about ecology and dynamics of nanoplankton and one-celled microplankton İn Izmir Bay, 103 Diatoroophyceae, 3 Silieoflagellata, 1 Euglenophyceae, 111 Dinoflagellata, I Ebriida, 1 Radiolaria and 47 Tintinnida (Ciliata) members (including varietes) were determined. The qualitative and quantitative analyses indicated that the oligotrophic Aegean water masses were active in the west of the Güzelyalı-Eski Gediz Ağzı line and the eutrophic Inner Bay water masses were mixed in the oligotrophic water periodically at the east of the line, and this event caused the blooms of the phytoplanktonic species. The diatoms like C. af finis. C. bergoni. L. danicusf £. minimus. L. boreal is. N. closterium. N. şeriata f P. tricornutum. P. elongatum. R. fragilissima. R. setigera and.T. rotula were the most important blooming species in the Inner Bay and the dinoflagellates like G. tamarensis. P. steini and P. micans which were tolerant at high levels of nutrients were active during the investigation period at the harbour region. Generally, the dino flagellate P. steini was the most important element of the dinoflagellate community and the other blooming species were C. furca var. furca. C. fusus var. gçta, £. / tamarensis. 0. scolopax. Pc diabolus var. longir>esf P. steini. P. micans. The Tintinnida member H. subulata affected the species diversity of this group during all of the year and E. lusus- undae, H. edentata^ S. curta, T. -beroidea, T. cylindrica,-- - - T. hana were the other important species. _ _ _ - ``. _.144b Although the reactions of the groups investigated were different to the high level of nutrients in the environment, the higher levels of ammonium nitrogen from 500 ugr/lt., nitrate nitrogen from 150 ugr/lt., nitrite nitrogen from 50 ^igr/lt,, phosphate phosphorus from 250 Tigr/lt> and silicium from 0o8 ppm. affected the community structure and the dominance of the few species was observed. The absorption of the domestic nutrients by the photosynthetic organisms between March and November could not decrease the nutrient levels to the normal conditions and on the contrary, the abnormal biomass which was occured as a result of blooms, increased the nutrient levels by decaying in, the sediment»