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Spatial And Temporal Characterization Of The Physicochemical Parameters And Phytoplankton Assemblages In Dodurga Reservoir (Sinop, Turkey), Seda Hasirci Mustak, Eli̇f Tezel Ersanli
Spatial And Temporal Characterization Of The Physicochemical Parameters And Phytoplankton Assemblages In Dodurga Reservoir (Sinop, Turkey), Seda Hasirci Mustak, Eli̇f Tezel Ersanli
Turkish Journal of Botany
Physicochemical parameters and phytoplankton seasonal variation were investigated between August 2010 and July 2011 in Dodurga Reservoir. A total of 35 phytoplankton taxa were identified. Phytoplankton samples collected from surface samples in late winter, spring, and early and mid-summer were found to be influenced by nitrate, dissolved oxygen, pH, temperature, and phosphate. However, early winter and autumn assemblages of the samples were influenced by total hardness, silica, water transparency, conductivity, organic matter, and oxidation reduction potential. The phytoplankton samples collected from different depths in early and mid-summer were found to be influenced by only temperature. Early and middle spring assemblages …
Some Factors Affecting The Abundance Of Phytoplankton In An Unproductive Alkaline Lake (Lake Hazar, Turkey), Mehmet Ali̇ Turan Koçer, Bülent Şen
Some Factors Affecting The Abundance Of Phytoplankton In An Unproductive Alkaline Lake (Lake Hazar, Turkey), Mehmet Ali̇ Turan Koçer, Bülent Şen
Turkish Journal of Botany
This study aimed to explain the seasonal and vertical distribution of phytoplankton in the pelagic zone of a deep alkaline lake that is characterized by low phytoplankton abundance. Phytoplankton and water samples were collected seasonally from 9 points and 7 depths between the surface and 20 m from December 2004 to September 2005. Planktolyngbya contorta was the dominant or subdominant species in all seasons and depths. The dominance of Gomphonema species was observed in December, but they were subdominant in September. Cyclotella meneghiniana was dominant at 20 m and subdominant in the upper depths during March, June, and September. Melosira …
Seasonal Variability Of Phytoplankton In A Coastal Lagoon And Adjacent Open Sea In Pakistan, Saima Latif, Zarrien Ayub, Ghazala Siddiqui
Seasonal Variability Of Phytoplankton In A Coastal Lagoon And Adjacent Open Sea In Pakistan, Saima Latif, Zarrien Ayub, Ghazala Siddiqui
Turkish Journal of Botany
The coast of Pakistan (North Arabian Sea) is under the influence of the seasonal cycle of monsoons, which may result in 2 periods of elevated phytoplankton productivity, one during the north-east monsoon (December-February) and the other during the south-west monsoon (May-September). In the present study, elevated primary productivity in the Miani Hor Lagoon and adjacent open sea off Pakistan was found during the south-west monsoon (May-September) and spring inter-monsoon (March-April). The lowest phytoplankton abundance was recorded in the north-east monsoon period at both collection sites. A total of 65 species of diatoms and 32 species of dinoflagellates were identified in …
Seasonal Variations In Phytoplankton Communities In Zayandeh-Rood Dam Lake (Isfahan, Iran), Masoumeh Shams, Saeed Afsharzadeh, Tahi̇r Atici
Seasonal Variations In Phytoplankton Communities In Zayandeh-Rood Dam Lake (Isfahan, Iran), Masoumeh Shams, Saeed Afsharzadeh, Tahi̇r Atici
Turkish Journal of Botany
Variations in the phytoplankton of Zayandeh-Rood Dam Lake were studied seasonally from September 2005 to August 2006 at 4 different stations. A total of 112 species and 53 genera belonging to 6 divisions were identified. The species belonging to Bacillariophyta, Chlorophyta, Cyanophyta, Euglenophyta, and Dinophyta were found frequently. Chrysophyta species were found in low numbers. Cyclotella meneghinina Kütz., a centric diatom, was the dominant species at all stations. The density of the phytoplankton was between 470 and 150,470 cells/cm^3. According to the Shannon-Weaver Index, the highest and the lowest diversities were determined in November and May, respectively. Regarding physico-chemical analysis …
Seasonal Changes In Phytoplankton Community Structure In Relation To Physico-Chemical Factors In Bukan Dam Reservoir (Northwest Iran), Ali Mohsenpour Azari, Fereidun Mohebbi, Alireza Asem
Seasonal Changes In Phytoplankton Community Structure In Relation To Physico-Chemical Factors In Bukan Dam Reservoir (Northwest Iran), Ali Mohsenpour Azari, Fereidun Mohebbi, Alireza Asem
Turkish Journal of Botany
This study examines the relationship between phytoplankton population and some important physicochemical variables in the Bukan Dam Reservoir. The sampling was performed monthly from 8 sampling sites from April 2008 to February 2009. Phytoplankton counts were made by inverted microscope. Totally, 55 phytoplankton taxa were identified and included Chlorophyta, Bacillariophyta, Dinophyta, Cyanobacteria, Euglenophyta, Chrysophyta and Cryptophyta. Correlations between some important physicochemical factors and total phytoplankton number were calculated. Results indicated that phytoplankton total number positively correlated with NH_3 (R^2 = 0.845) and negatively correlated with Secchi disc depth (R^2 = -0.613).
The Phytoplankton Community (Except Bacillariophyceae) Of Lake Abant (Bolu, Turkey), Abuzer Çelekli̇, Olcay Obali, Okan Külköylüoğlu
The Phytoplankton Community (Except Bacillariophyceae) Of Lake Abant (Bolu, Turkey), Abuzer Çelekli̇, Olcay Obali, Okan Külköylüoğlu
Turkish Journal of Botany
A total of 162 phytoplankton species found monthly from 3 littoral and 2 vertical stations between June 2003 and June 2005 were identified from Lake Abant (Bolu, Turkey). Some species, such as Trachelomonas volvocina Ehrenberg, Cryptomonas ovata Ehrenberg, and Ceratium hirundinella (Müller) Dujardin showed frequent occurrence almost every month, but others had specific seasonality. Phytoplankton composition of this lake was dominated by Chlorophyta, accounting for about 58.6% of the species richness. Phytoplankton composition in Lake Abant included many new reported (> 30) taxa for the algal flora of Turkey.
New Record For A Dinoflagellate Species (Gonyaulax Pacifica Kofoid) From Turkish Coastal Waters (Northeastern Mediterranean Sea), Sevi̇m Polat
Turkish Journal of Botany
The dinoflagellate species Gonyaulax pacifica Kofoid is reported for the first time from northeastern Mediterranean coast of Turkey; it has not previously been reported for any Turkish coastal waters. The morphological characteristics of this species are described in detail and information about its ecological and biogeographical 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.
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.
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 …
Seasonal Distribution Of Phytoplankton In Orduzu Dam Lake (Malatya, Turkey), Ahmet Kadri̇ Çeti̇n, Bülent Şen
Seasonal Distribution Of Phytoplankton In Orduzu Dam Lake (Malatya, Turkey), Ahmet Kadri̇ Çeti̇n, Bülent Şen
Turkish Journal of Botany
The species composition and seasonal distribution of phytoplankton in Orduzu Dam Lake was studied for a year. Diatoms (Bacillariophyta) were most diverse, followed by green algae (Chlorophyta), blue-green algae (Cyanophyta), euglenoids (Euglenophyta) and dinoflagellates (Dinophyta). A total of 117 taxa were recorded and the phytoplankton of the lake contained a large number of detached benthic algae. Phytoplankton assemblages were dominated by diatoms in all the periods investigated and centric diatoms were the most abundant. Overall phytoplankton density was high during the spring and summer months and the highest phytoplankton density was observed in August. The abundance of phytoplankton was positively …
A Study On Algae In Devegeçidi Dam Lake, Tülay Baykal, İlkay Açikgöz, Kazim Yildiz, Aysel Bekleyen
A Study On Algae In Devegeçidi Dam Lake, Tülay Baykal, İlkay Açikgöz, Kazim Yildiz, Aysel Bekleyen
Turkish Journal of Botany
This research was carried out between 1995 and 1996 in Devegeçidi Dam Lake and a total of 112 taxa belonging to 5 divisions were identified, with 29 species belonging to Cyanophyta, 5 to Euglenophyta, 45 to Chlorophyta, 5 to Pyrrhophyta and 28 to Bacillariophyta. Microcystis aeruginosa Kütz. from the Cyanophyta was the most abundant and widespread species in phytoplankton. This was followed by Aphanizomenon floss - aquae (L.) Ralfs and Aulacoseira granulata (Ehr.) Simonsen as the second most abundant and widespread organisms. Pediastrum dublex Meyen, P. simplex var. duodenarium (Bailey) Rabenhorst and Ceratium hirundinella (O.F.Muell.) Duj. species were widely distributed …
A Taxonomic Study On The Phytoplankton Of Lake Uluabat (Bursa), Di̇dem Karacaoğlu, Şükran Dere, Nurhayat Dalkiran
A Taxonomic Study On The Phytoplankton Of Lake Uluabat (Bursa), Di̇dem Karacaoğlu, Şükran Dere, Nurhayat Dalkiran
Turkish Journal of Botany
The phytoplanktonic algal flora of Lake Uluabat was studied during July 1998- June 1999 by analysing samples taken each month from 5 sampling stations. Identified taxa (331) of the phytoplanktonic community are as follows: 152 Bacillariophyta, 89 Chlorophyta, 42 Cyanophyta, 31 Euglenophyta, 11 Dinophyta, 4 Cryptophyta and 2 Chrysophyta. Algal species which live in eutrophic water are dominant in the phytoplankton. Most of the species are characterised by their widespread presence, although it is also noted that some taxa are rarely found in Turkey.
New Record For A Dinoflagellate Species (Citharistes Regius Stein) In The Northern Levantine Basin (Eastern Mediterranean), Sevi̇m Polat
New Record For A Dinoflagellate Species (Citharistes Regius Stein) In The Northern Levantine Basin (Eastern Mediterranean), Sevi̇m Polat
Turkish Journal of Botany
The presence of a dinoflagellate species, Citharistes regius Stein belonging to genus Citharistes Stein, is reported for the first time from the eastern Mediterranean coast of Turkey. This species is also a first report for all Turkish seas and the Levantine Basin. Morphological characteristics of this species are described in detail and information about its ecological distribution is given.
New Records For The Genus Heterodinium Kofoid (Dinophyceae) From Turkish Coastal Waters (North-Eastern Mediterranean), Sevi̇m Polat, Tufan Koray
New Records For The Genus Heterodinium Kofoid (Dinophyceae) From Turkish Coastal Waters (North-Eastern Mediterranean), Sevi̇m Polat, Tufan Koray
Turkish Journal of Botany
Three species of the genus Heterodinium Kofoid are reported for the first time in Turkish coastal waters, in the north-eastern Mediterranean. The identified species are Heterodinium mediocre Kofoid, H. angulatum Kofoid & Michener and H. inaequale Kofoid. The morphological characteristics of these three species are described and information about their distribution is given.
The Relationship Between Phytoplanktonic Organisms And Chlorophyll A In Sultan Sazlığı, Aydin Akbulut
The Relationship Between Phytoplanktonic Organisms And Chlorophyll A In Sultan Sazlığı, Aydin Akbulut
Turkish Journal of Botany
This study examines the variations and relationship between phytoplanktonic organisms and chlorophyll a in Sultan Sazlığı marshes. During the sampling period, the density of phytoplankton and the value of chlorophyll a were examined, and it was found that the correlation between them was high. Given the variations between these two parameters in accordance with the seasons, the relationships with other studies are also discussed.
Phytoplankton Species' Succession And Nutrients In The Southern Black Sea (Bay Of Sinop), Muhammet Türkoğlu, Tufan Koray
Phytoplankton Species' Succession And Nutrients In The Southern Black Sea (Bay Of Sinop), Muhammet Türkoğlu, Tufan Koray
Turkish Journal of Botany
The succession, annual cycle and diversity of phytoplankton species and seasonal changes in nutrients in the southern Black Sea (around Sinop peninsula) were investigated between August 1995 and July 1996. One species of Cyanophyceae, 83 taxa of Dinophyceae, 1 species of Prymnesiophyceae, 5 taxa of Dictyochophyceae, 88 taxa of Bacillariophyceae and 1 species of Euglenophyceae were identified. A list of phytoplankton species together with annual variations was prepared. Changes in community structure, density and diversity are discussed in relation to the physico-chemical features of the water column.
New Records Of The Genus Histioneis F.R. Von Stein (Dinophyceae) From Turkish Coastal Waters, Sevi̇m Polat, Tufan Koray
New Records Of The Genus Histioneis F.R. Von Stein (Dinophyceae) From Turkish Coastal Waters, Sevi̇m Polat, Tufan Koray
Turkish Journal of Botany
The dinoflagellate genus Histioneis F.R. von Stein 1883 and six species belonging to this genus are reported for the first time from the coastal waters of Turkey (north-eastern Mediterranean, lat. 36° 06' N - 36° 07' N, long. 33° 28' E - 33°30' E). Descriptions of the species Histioneis depressa J.Schiller, H. expansa L.Rampi, H. para Murray & Whitting, H. marchesonii L.Rampi, H. striata Kof. & J.R.Michener and H. elongata Kof. & J.R.Michener are given.
Phytoplankton Distribution, Diversity And Nutrients At The North-Eastern Mediterranean Coast Of Turkey (Karataş-Adana), Sevi̇m Polat, Oya Işik
Phytoplankton Distribution, Diversity And Nutrients At The North-Eastern Mediterranean Coast Of Turkey (Karataş-Adana), Sevi̇m Polat, Oya Işik
Turkish Journal of Botany
Seasonal changes in phytoplankton composition and phytoplankton abundance and physico-chemical factors affecting these parameters were investigated in this study. Quantitative and qualitative phytoplankton and nutrient analysis were carried out between 1998 and 1999 at 12 sampling stations located from inshore to offshore of Karataş, situated in the north-eastern Mediterranean. A total of 135 taxa were determined, belonging to four algae classes: Cyanophyceae, Bacillariophyceae, Dinophyceae and Dictyochophyceae. Bacillariophyceae appeared to be the dominant group in terms of total species number and cell numbers during the research period. The number of phytoplankton species was high in winter and quite low in summer. …
Seasonal Changes In The Phytoplankton Of The Northeastern Mediterranean(Bay Of Iskenderun), Sevi̇m Polat, Ercan Sarihan, Tufan Koray
Seasonal Changes In The Phytoplankton Of The Northeastern Mediterranean(Bay Of Iskenderun), Sevi̇m Polat, Ercan Sarihan, Tufan Koray
Turkish Journal of Botany
This study was carried out in the northern part of the Bay of Iskenderun in the northeastern Mediterranean during the period 1994-1995. The quantitative and qualitative distribution of phytoplankton, the environmental factors that affect its distribution and the changes in succession over time were investigated. At each of the seven stations, monthly sampling was done from the surface and 10.0 m depth. In spring, the sampling was performed once every two weeks. In addition, the measurements of some physical and chemical parameters i.e. temperature, salinity, (NO^-_3 +NO^-_2 )-N and PO4^-_3 -P were carried out. At the end of the study, …
Algal Flora Of Lakes Aygir And Balıkli (Trabzon, Turkey), Bülent Şahi̇n
Algal Flora Of Lakes Aygir And Balıkli (Trabzon, Turkey), Bülent Şahi̇n
Turkish Journal of Botany
The algal flora of lakes Aygir and Balıkli were studied qualitatively between June and Septembeer 1996. The flora of Lake Aygır was found to consist of 48 species, 26 belonging to Bacillariophyta, 17 to Chlorophyta, 4 to Cyanophyta and 1 to Euglenophyta. The flora of Lake Balıklı was found to consist of 71 species, 34 belonging to Bacillariophyta, 29 to Chlorophyta, 7 to Cyanophytaand 1 to Euglenophyta. The compositions of the species in the two lakes were similar. The main species of the algal flora of the lakes were members of Desmidiales.
Diatoms (Bacillariophyta) In The Phytoplankton Of Keban Reservoir And Their Seasonal Variations, A. Kadri Çeti̇n, Bülent Şen
Diatoms (Bacillariophyta) In The Phytoplankton Of Keban Reservoir And Their Seasonal Variations, A. Kadri Çeti̇n, Bülent Şen
Turkish Journal of Botany
The seasonal variations of planktonic diatoms occurring in the Keban and Içme regions of Keban Reservoir were in-vestigated over a 2-year period (January 1991 - December 1992). A total of 104 diatom taxa were determined. Cyclotella ocellata Pantocksek, C. kützingiana Thwaites (Centrales), Asterionella formosa Hassall and Fragilaria crotonensis Kitton (Pennales) were the most conspicuous diatoms in terms of frequency of occurrence and numbers of individuals in the phytoplankton. The species composition and seasonal growth properties of the diatoms differed in the Keban and Içme regions of the lake. Although the quan-tity of diatoms tended to increase in all seasons, spring …
Seasonal Variations Of Phytoplankton Blooms In Suat Ugurlu (Samsun - Turkey), Arif Gönülol, Olcay Obali
Seasonal Variations Of Phytoplankton Blooms In Suat Ugurlu (Samsun - Turkey), Arif Gönülol, Olcay Obali
Turkish Journal of Botany
The seasonal variations in phytoplankton blooms in Suat Uğurlu Reservoir were studied between July 1992 and De-cember 1993. In certain months, the species Asterionella formosa Hassal, Cyclotella planctonica Brunthaler, Melosira granulata (Ehr.) Ralfs (Bacillariophyta); Pediastrum simplex Meyen, Pandorina morum Borry (Chlorophyta) and Ceratium hirundinella (O F. Müller) Schrank (Dinophyta) produced blooms in the lake. During the study period, the measured N/P ratio in the water varied from 10.3 mg/lt to 62.5. In accordance with these variations, P. simplex, P. morum and C. hirundinella, which consume high levels of phosphate, produced blooms in summer, whereas the blooms in winter were produced …
A Study In The Seasonal Variation Of Phytoplankton Inhafik Lake (Sivas, Turkey), Sabri Kilinç
A Study In The Seasonal Variation Of Phytoplankton Inhafik Lake (Sivas, Turkey), Sabri Kilinç
Turkish Journal of Botany
The seasonal variations in composition of the phytoplankton of Hafik lake was studied from April 1986to June 1987. Ba- cillariophyta, Chlorophyta, and Cyanophyta were the most abundant components of the phytoplankton community. Chrysophyta, Cryptophyta, Dinophyta, and Euglenophyta were found in low numbers. Diatoms showed an increase in spring but were scarce in summer and autumn. Cyclotella meneghiniana Kuetz. and Cyclotella ocellata Pant. were the most frequent species. Chlorophyta was the next most abundant group and showed greater numbers in spring than in autumn and summer. Chlamydonomonas, Oo- cytis, and Scenedesmus species were the main algae. Cyanophyta members (Gloeocapsa, Chroococcus, Oscillatoria) …