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A. Closterium cornu; B. Actinotaenium curtum; C,D. Cosmarium anceps; E. Cosmarium boitierense; F,G. Cosmarium botrytis var. gemmiferum (front and apical views); and H. Cosmarium cucumis. Scale bar = 20 μm.
Contexts in source publication
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... Cosmarium Corda ex Ralfs Cosmarium anceps P. Lundell ( Figures 2C and 2D) West and West (1908) p. 47, pl. 69, figs. ...
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... Cosmarium Corda ex Ralfs Cosmarium anceps P. Lundell ( Figures 2C and 2D) West and West (1908) p. 47, pl. 69, figs. 14-17; Dillard (1991) p. 44, pl. 15, fig. 9; Lenzenweger (1999) p. 74, pl. 51, fig. 26; John et al. 2003, p. 535, pl. 132, fig. T; Coesel and Meesters (2007) p. 105, pl. 59, fig. ...
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... and West (1912) p. 5, pl. 97, figs. 4a-4b; Dillard (1991) p. 52, pl. 37, fig. 2; Lenzenweger (1999) p. 130, pl. 62, figs. ...
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... cucumis Corda ex Ralfs ( Figure 2H) West and West (1905) p. 152, pl. 59, figs. 18-20; Lind and Brook (1980) p. 58, fig. 83; p. 62, pl. 6, fig. 2; Lenzenweger (1999) p. 43, pl. 47, fig. 11; John et al. (2003) p. 538, pl. 132, fig. I. Dimensions: L: 61.68 µm, B: 40.87 µm, I: 17.81 µm. Description: According to Figure 2H, the shapes of the semicells exhibit differences. It is likely that this species was observed after cell division, and that this is why one of the semicells had ...
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... Dimensions: L: 61.68 µm, B: 40.87 µm, I: 17.81 µm. Description: According to Figure 2H, the shapes of the semicells exhibit differences. It is likely that this species was observed after cell division, and that this is why one of the semicells had not completed its development. ...
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... pokornyanum (Grunow) West and G.S.West ( Figure 3F) West and West (1905) p. 190, pl. 63, figs. 11-15; p. 131, pl. 10, fig. 14; Lenzenweger (1999) p. 95, pl. 52, fig. 27; Coesel and Meesters (2007) p. 131, pl. 66, figs. ...
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... pseudonitidulum Nordstedt ( Figure 3H) West and West (1905) p. 195, pl. 63, fig. 26; p. 107, pl. 13, fig. 2; Lenzenweger (1999) p. 57, pl. 49, fig. 7; Coesel and Meesters (2007) p. 134, pl. 62, fig. ...
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... simplicius (West and G.S.West) Grönblad ( Figure 3J) West and West (1912) p. 41, pl. 102, figs. 20-21; p. 125, pl. 40, fig. 4; Lenzenweger (1999) p. 113, pl. 60, fig. 20; Coesel and Meesters (2007) ...
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... Cosmarium Corda ex Ralfs Cosmarium anceps P. Lundell ( Figures 2C and 2D) West and West (1908) p. 47, pl. 69, figs. ...
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... Cosmarium Corda ex Ralfs Cosmarium anceps P. Lundell ( Figures 2C and 2D) West and West (1908) p. 47, pl. 69, figs. 14-17; Dillard (1991) p. 44, pl. 15, fig. 9; Lenzenweger (1999) p. 74, pl. 51, fig. 26; John et al. 2003, p. 535, pl. 132, fig. T; Coesel and Meesters (2007) p. 105, pl. 59, fig. ...
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... and West (1912) p. 5, pl. 97, figs. 4a-4b; Dillard (1991) p. 52, pl. 37, fig. 2; Lenzenweger (1999) p. 130, pl. 62, figs. ...
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... cucumis Corda ex Ralfs ( Figure 2H) West and West (1905) p. 152, pl. 59, figs. 18-20; Lind and Brook (1980) p. 58, fig. 83; p. 62, pl. 6, fig. 2; Lenzenweger (1999) p. 43, pl. 47, fig. 11; John et al. (2003) p. 538, pl. 132, fig. I. Dimensions: L: 61.68 µm, B: 40.87 µm, I: 17.81 µm. Description: According to Figure 2H, the shapes of the semicells exhibit differences. It is likely that this species was observed after cell division, and that this is why one of the semicells had ...
Context 17
... Dimensions: L: 61.68 µm, B: 40.87 µm, I: 17.81 µm. Description: According to Figure 2H, the shapes of the semicells exhibit differences. It is likely that this species was observed after cell division, and that this is why one of the semicells had not completed its development. ...
Context 18
... pokornyanum (Grunow) West and G.S.West ( Figure 3F) West and West (1905) p. 190, pl. 63, figs. 11-15; p. 131, pl. 10, fig. 14; Lenzenweger (1999) p. 95, pl. 52, fig. 27; Coesel and Meesters (2007) p. 131, pl. 66, figs. ...
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... pseudonitidulum Nordstedt ( Figure 3H) West and West (1905) p. 195, pl. 63, fig. 26; p. 107, pl. 13, fig. 2; Lenzenweger (1999) p. 57, pl. 49, fig. 7; Coesel and Meesters (2007) p. 134, pl. 62, fig. ...
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... Algological studies in the region started in 1990 and are actively continuing until present. During this time, a lot of data on freshwater algae, especially on desmids, were accumulated [6][7][8]. However, considering the size of the region, which is about 37.551 km 2 , and the abundance of rivers, lakes (especially high mountain lakes) and different types of water bodies, there are still a lot of areas not examined from the algological point of view. ...
... The species were identified following West and West [13][14][15][16][17], Ruzicka [18], Lind and Brook [19], Förster [20], Croasdale et al. [21,22], Dillard [23,24], Lenzenweger [25,26], John et al. [27], Brook and Williamson [28], Coesel and Meesters [29,30]. The control of the species and the current status of nomenclature were made by using the relevant sources [6][7][31][32][33]. ...
... At the end of the research, 78 species belonging to Charophyta were determined from 15 lakes. As in other studies in the region, the members of the family Desmidiaceae were dominant in this study [6,7]. They comprised 67.94% of all recorded species. ...
The periphytic algal samples were taken from 14 lakes and one pond in the Kaçkar Mountains National Park in 2020. The samples were observed under light microscope for their morphometric characteristics based identification. At the end of the research, 78 taxa belonging to the Charophyta division were identified. 7 of them, which are Closterium jenneri var. curvatissimum (West & G.S.West) A.J.Brook & D.B.Williamson, Cosmarium margaritiferum f. regularis (Nordstedt) West & G.S.West, Euastrum ansatum var. concavum Willi Krieger, E. verrucosum var. coarctatum Delponte, E. verrucosum var. planctonicum West & G.S.West, Staurastrum capitulum Brébisson and S. sexcostatum Brébisson ex Ralfs, were determined as new records for the desmid flora of Turkey. In this paper, morphotaxonomy, ecology, and distribution of each species are discussed in detail and it has been also recorded the geographic distribution of desmid species in Turkey.
... High mountain lakes in Turkey are predominantly located in the Eastern Black Sea Region. The studies carried out in these lakes revealed the existence of a rich algal flora in the region and made significant contributions to Turkey's freshwater algal flora [5,[6][7][8][9][10][11][12][13][14][15][16][17]. However, there are still many lakes with unknown algal flora in the region. ...
The algal samples were taken from Koçdüzü Great Lake on 21 August 2019 and from Adsız Pond on 28 August 2020. The algal samples were collected from epipelic and epiphytic habitats and observed under light microscope for their morphometric characteristics based identification. Palmodictyon varium (Nägeli) Lemmermann (Chlorophyta) and Isthmochloron trispinatum (West & G.S.West) Skuja (Ocrophyta) species were assessed as a new records for the freshwater algal flora of Turkey. In this paper, morphotaxonomy, ecology, and geographic distribution of each species is discussed in detail and it has been also recorded the geographic distribution of the species in Turkey.
... Also more than 6000 species have been found in the inland water in various parts of the world [5]. It is also considered as one of the most important group of algae in the trophic classification in the aquatic ecosystem, and is considered good bio-indicators for ecosystem stability [6]. To find out the negative effects of acidification, cultivation and eutrophication on the living of Zygnematales in recent years, some studies are being conducted in different parts of Iraq and Kurdistan Region (7)(8)(9)(10)(11). ...
... Sites under study in Aquban, consist of five shallow to medium depth??? [1, 2, 3, 4 and 5] found within the mountain area, containing different types of trees. In Sarkand village, six sites [6,7,8,9,[11][12][13][14] along the stream and seven springs [10, 12, 13, 15, 16, 17 and 18] follow from the mountain area down flow of the streams. All the studied sites are about 40 km long ( Figure 1). ...
... Zygnemataceae and Desmidiaceae increased in the warm season than in the wet season [22].High temperature, bright sunlight, high transparency and rapid tropholytic activities could render a decrease in water level, thus bringing the deep nutrientrich areas into the fold of tropholytic zone. It could result in the increase of Chlorophyceae biomass during dry summer season [6,22]. Similar conclusion was also observed by recent work which found out that the level increases during dry season and decreases during the wet season. ...
Zygnematales an order of green algae in Shaqlawa District Erbil, Kurdistan Region, Iraq, has been studied in eighteen sites, distributed between twelve springs and six along the streams within Shaqlawa district from September2019 to August2020. A total of 116 species belonging to 9 genera were identified. The most dominant genera included Spirogyra and Cosmarium (31, 30) taxa respectively. Out of them, 30 species were recorded for the first time in Iraq. Newly found genera included one species each for Cylindrocystis, Debarya, Hallasia and Staurastrum, nine species belonged to Mougeotia, three species returned to Closterium, and fourteen genera were related to Cosmarium .Growth of Zygnemataceae and Desmids increased in the summer than during the winter season. A brief description as well as the measurement is given for each species.
... High mountain lakes in Turkey are predominantly located in the Eastern Black Sea Region. The studies carried out in these lakes revealed the existence of a rich algal flora in the region and made significant contributions to Turkey's freshwater algal flora [5,[6][7][8][9][10][11][12][13][14][15][16][17]. However, there are still many lakes with unknown algal flora in the region. ...
The algal samples were taken from Koçdüzü Great Lake on 21 August 2019 and from Adsız Pond on 28 August 2020. The algal samples were collected from epipelic and epiphytic habitats and observed under light microscope for their morphometric characteristics based identification. Palmodictyon varium (Nägeli) Lemmermann (Chlorophyta) and Isthmochloron trispinatum (West & G.S.West) Skuja (Ocrophyta) species were assessed as a new records for the freshwater algal flora of Turkey. In this paper, morphotaxonomy, ecology, and geographic distribution of each species is discussed in detail and it has been also recorded the geographic distribution of the species in Turkey.
... In general, studies on the freshwater algae of the Eastern Turkish Black sea region are focused on the provinces of Artvin, Gümüşhane, Bayburt, Trabzon, Giresun, and Ordu (Şahin, 1998a;Maraşlıoğlu et al., 2017;Şahin et al., 2010, 2020Taş and Hamzaçebi, 2020). As a result of these studies, 122 new records of algal species were added to the freshwater algal flora of Turkey (Şahin, 1994, 1998b, 2000a, 2002, 2007, 2009; Şahin and Akar, 2007Şahin and Akar, , 2018Şahin and Akar, , 2019a, b; Akar and Şahin, 2014; Şahin 2021a, b). One hundred and six of them belong to the desmids. ...
The benthic algal composition of Charophyta in the Avusor Great Lake and Koçdüzü Great Lake at the altitude of about 3,000 m a.s.l. was investigated on 21 August 2019. A total of 112 species, belonging to Zygnematophyceae, were identified. The genera Cosmarium (44), Staurastrum (16), Closterium (15), and Euastrum (13) were most abundant. The members of filamentous charophyta were represented by two species. Bioindicator species characterize water in both lakes as clear, Class 2 of water quality and the lakes ecosystem as mesotrophic. The partly unexpected presence of certain desmids taxa, i.e., species characteristic of eutrophic water, was recorded.
... The nucleus is clearly visible in the area between the two semi-cells (isthmus). (Sahin & Akar, 2019) said that the semi-cells of C. botrytis are ovate-pyramidal in shape with angles broadly rounded. The sinus appears deep and ...
Desmids (Desmidiaceae) is the family of green algae that characterized by cells that are shaped of two symmetrical semicells and it is estimated that there up to 12,000 species of Desmids. Cosmarium and Euastrum are two genera of Desmids that considered as the most representative taxa of this family. They are vary widely in size and shape of the cells. Based on the results of preliminary observations, in the aquatic enviroment around University of Palangka Raya is rich in microalgal diversity including Desmids. Cell size and shape are the most important points to be known to study the microalgae. This research is aimed to study the variety of cell size of Cosmarium spp. and Euastrum spp. from the aquatic environment around Palangka Raya. The results of this study show that the Cosmarium cells have the dimension of 17-80 μm long and 14-57 μm wide; Euastrum cells have the dimension of 24-89 μm long and 17-80 μm wide.
... In general, studies on the freshwater algae of the Eastern Turkish Black sea region are focused on the provinces of Artvin, Gümüşhane, Bayburt, Trabzon, Giresun, and Ordu (Şahin, 1998a;Maraşlıoğlu et al., 2017;Şahin et al., 2010, 2020Taş and Hamzaçebi, 2020). As a result of these studies, 122 new records of algal species were added to the freshwater algal flora of Turkey (Şahin, 1994, 1998b, 2000a, 2002, 2007, 2009; Şahin and Akar, 2007Şahin and Akar, , 2018Şahin and Akar, , 2019a, b; Akar and Şahin, 2014; Şahin 2021a, b). One hundred and six of them belong to the desmids. ...
... Later, in the check-list for the freshwater algae of Turkey [5], a total of 2030 taxa were reported. In recent years, new records of freshwater algae from new localities have been continuously added, and the freshwater algal flora in Turkey is continuing to be enriched [6][7][8][9][10]. ...
This study contributes new information from the Marmara Lake to knowledge of the Turkish freshwater algal flora. Eleven taxa, recorded for the first time for the freshwater algae of Turkey, were identified based on their taxonomic and morpholog-ical characteristics and ecological preferences in this study. These taxa are respectively; Gomphosphaeria natans Komárek & Hindák, Planktothrix clathrata (Skuja) Anagnostidis & Komárek, Jaaginema pro-fundum (Schröter & Kirchner) Anagnostidis & Komárek, Cronbergia paucicellularis Komárek, Zapomelová & Hindák, Sphaerospermopsis reni-formis (Lemmermann) Zapomelová, Jezberová, Hrouzek, Hisem, Reháková & Komárková, Dolicho-spermum mucosum (Komárková-Legnerová & Elor-anta) Wacklin, L.Hoffmann & Komárek, Trachelo-monas manginii Deflandre, Cymbella neolanceolata W.Silva, Amphora hemicycla Stoermer & J.J.Yang, Fragilaria saxoplanctonica Lange-Bertalot & S.Ul-rich, Cosmarium humile var. substriatum (Nordstedt) Schmidle. Also, the morphology and taxonomy of these taxa are briefly described in the manuscript with their original light microscopy photographs.
... The diversity of desmids from different regions of the world has been explored by many workers (16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27). In India, many studies have been reported from different parts, like from Dehradun (28), Ladakh (29,30), Uttar Pradesh (31), Karnataka (32,33), Maharashtra (12,14,(34)(35)(36)(37)(38)(39), Western Himalayas (40), Himachal Pradesh (41), Eastern Himalaya (42), West Bengal (43) etc. Although, algal diversity from different water bodies of Punjab has been explored by various workers (44)(45)(46)(47)(48)(49) but, according to available literature, detailed taxonomic studies on desmids are not been carried out till date leading to a gap in knowledge about the diversity of this important group of algae. ...
This study deals with exploration of freshwater desmids for the first time from Ropar wetland (Ramsar site) of Punjab (India) to assess their taxonomic aspects and bio-geographical distribution. During this study, samples of planktonic, epiphytic and epilithic desmids were collected from littoral zone and were observed under light microscope for their morphometric characteristics based identification. Total 21 desmids species belonging to 4 genera of 2 families (Closteriaceae and Desmidiaceae) were identified from the collected samples. Among them, Cosmarium with 11 species (C. awadhense, C. bioculatum, C. trilobatum, C. divergens, C. granatum, C. moniliforme, C. nitidulum, C. subtumidum, C. reniforme, C. undulatum and C. obtusatum) was found to be most abundant followed by Closterium with 7 species (C. acerosum, C. dianae, C. incurvum, C. leibleinii, C. lunula, C. pritchardianum and C. aciculare), Euastrum with 2 species (E. spinulosum and E. platycerum) and Staurastrum with 1 species (S. crenulatum). The geographic distribution of identified desmid taxa in India has been also recorded. All the desmid taxa identified during this study are new record for the Punjab state of India. The results of this study provide significant baseline data for the future taxonomic and ecological studies from the similar habitats.
... These records were mainly found in Susurluk, Sakarya, Fırat -Dicle, Yeşilırmak, Marmara, Doğu Karadeniz, Çoruh, Burdur, and Antalya basins. It has been seen that the contribution to new records is highest in Sakarya and Fırat -Dicle basins which have the largest surface area (Aysel et al., 1993;Öztürk et al., 1995a, 1995bŞahin, 2000, 2007, 2009Yağcı & Turna, 2002;Atıcı, 2002;Baykal et al., 2009;Sevindik et al., 2010Sevindik et al., , 2011Sevindik et al., , 2015Sevindik et al., , 2017Özer et al., 2012;Akar & Şahin, 2014;Yüce & Ertan, 2014;Varol & Fucikova, 2015;Varol & Şen, 2016;Maraşlıoğlu & Soylu, 2018;Şahin & Akar, 2019aŞahin & Akar, , 2019bMorkoyunlu & Aktaş, 2020). As a consequence of these studies, the total number of taxa have increased in Turkey (Taşkın et al., 2019;Maraşlıoğlu & Gönülol, 2020). ...
We explained the methodology used in setting the basic and supplementary measures for diffuse pollutants at Küçük Menderes Basin. As the majority of diffuse pollutants arise from livestock breeding and agricultural activities, we focused to propose measures regarded with tackling the pollution from agricultural activities. The types and distribution of diffuse loads were expressed by total nitrogen and phosphorous parameters. We used the results of a yearlong surface water quality monitoring involving physico-chemical, chemical and biological parameters with specific pollutants and priority substances, set in the European Union Water Framework Directive as the AquaTool input data. The AquaTool model was run for attaining the outcomes of a series of measures determined according to the ecological sensitivity of each water body. The removal efficiency of pollution loads provided by the best management practices in agricultural activities and livestock breeding were compiled from literature, and typical removal rates were further determined for the basin. We produced nine alternative scenarios at first cycle for determining compliance measures for mitigating point and diffuse sources of pollution in surface water bodies, and water quality improvements observed in the Model were reported. A Abstract Turkish lakes have different morphometric and hydrological features as a result of different climates and noticeable altitude differences in Turkey that are necessary conditions to occur different habitats for algal diversity. The total number of algae taxa in the flora of Turkey has increased due to the growing number of studies on phytoplankton taxonomy and ecology in the last 40 years. This study aims to describe new planktonic algal taxa for the Turkish freshwater algal flora. A total of 56 Ochrophyta taxa were determined in this study, conducted from 2017 to 2019 in lakes lies in 25 river basins of Turkey. In 275 lakes, samples of phytoplankton were collected with water samplers from three depths (surface, middle, and bottom) of the euphotic zone, and then subsamples were obtained by mixing the water samples taken from these three depths. The plankton net with a pore diameter of 50 µm was also used for collecting samples of phytoplankton. The algal taxa was identified by using different types of compound and inverted microscopes in many laboratories. 30 Ochrophyta taxa of which were determined in this study, were reported as a new record for the first time for the freshwater algal flora of Turkey. Öz Türkiye gölleri, Türkiye farklı iklim tiplerine ev sahipliği yaptığından ve coğrafik olarak yükseklik farklılıkları bulundurduğundan dolayı farklı morfometrik ve hidrolojik yapıya sahip olup, bu durum alglerin biyoçeşitliliği için farklı habitat tipleri sağlamaktadır. Son 40 yılda, fitoplankton taksonomisi ve ekolojisi alanında yapılan çalışmaların artması sebebiyle Türkiye florasındaki toplam alg taksonu sayısı artmıştır. Bu çalışma, Türkiye tatlı su alg florası için yeni planktonik alg taksonlarını tanımlamayı amaçlamaktadır. 2017 ve 2019 yılları arasında Türkiye'deki 25 nehir havzasında bulunan göllerde yapılan çalışmada Ochrophyta divizyosuna ait 56 takson tanımlanmıştır. 275 gölde yapılan bu çalışmada fitoplankton örnekleri öfotik derinliğin 3 farklı bölgesinden (yüzey, orta, dip) su örnekleyicileri ile toplanmıştır. Daha sonra bu üç derinlikten alınan su örnekleri karıştırılarak su numuneleri alınmıştır. 50 µm göz açıklığına sahip plankton kepçesi de örnekleme sırasında ayrıca kullanılmıştır. Alg taksonlarının teşhisi farklı laboratuvarlardaki ışık ve ters mikroskopları kullanılarak gerçekleştirilmiştir. Çalışma sırasında, Türkiye tatlı su alg florası için ilk defa Ochrophyta divizyosuna ait 30 yeni takson bulunmuştur. Anahtar kelimeler: Ochrophyta, tatl su algi, yeni kayt, Türkiye
