Browsing by Author "Balkis N."

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    Dinoflagellate cyst assemblages in surface sediments of southwestern black sea and Çanakkale strait (dardanelles)
    (Parlar Scientific Publications, 2015) Aydin H.; Balci M.; Uzar S.; Balkis N.
    In order to document the distribution of dinoflagellate cyst assemblages, eight surface sediment samples were collected in surface sediments from southwestern Black Sea and Çanakkale Strait. A total of 25 cyst types and 1 unknown cyst type were identified. Samples displays low total cyst concentrations with values ranging from 8 to 346 cyst g-1 dry weight sediment. Autotrophic dinoflagellates highly and significantly contributes (p<0.01) to the total cyst concentration. Lingulodinium machaerophorum, cyst type of Al-exandrium minutum and Spiniferites bulloideus were dominant at the sampling points. Higher cyst concentration and diversity observed at stations in Black Sea could be linked to the type of sediment. Small-sized sediment (sand-silt) were mostly dominant at the Black Sea stations compare to the more sandy type sediment of Çanakkale Strait. Present study provides the first modern dinoflagellate cyst records from surface sediments of southwestern Black Sea and Çanakkale Strait. © by PSP.
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    Seasonal investigation of the protein, carbohydrate and lipid contens of dominant macroalgae on the western coast of the black sea
    (Parlar Scientific Publications, 2017) Yesilova K.; Balkis N.; Taskin E.
    In this study, the ecological features and total protein, carbohydrate and lipid amounts of the dominant macroalgal species of the western Black Sea coast were investigated. Seasonal samplings were carried out at five coastal stations (Sts. İğneada, Kiyiköy, Yaliköy, Karaburun, Kilyos) between November 2012 and August 2013. After the examination of the collected samples, 25 macroalgal species belonging to 9 families and 11 genera were determined. The highest protein content has been determined in the summer season sampling of Callithamnion corymbosum with a percentage of 47.09% (St. igneada), while the lowest one has been determined in the winter season sampling of Corallina officinalis with a percentage of 0.10% (St. Yalikoy). The highest proportion in carbohydrate content was observed in Ceramium virgatum (87.02%) collected in summer at Kilyos station, while the lowest one has been found in Cystoseira barbata (2.60%) which was sampled in the autumn season at Karaburun station. The highest lipid ratio has been found in summer in Callithamnion corymbosum (22.04%, St. Igneada), and the lowest ratio has been found in spring in Ulva compressa (0.75%, St. Kilyos). The sea temperature values varied between 6.71°C-25.02°C, the salinity varied between 11.95-16.54%o, the dissolved oxygen varied between 6.95-14.61mg/L and the pH values varied between 4.67-7.28 during the study. © 2017 Parlar Scientific Publications. All rights reserved.