Temporal variations of surface phytoplankton, nutrients and chlorophyll a in the Dardanelles (Turkish Straits System): a coastal station sample in weekly time intervals

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dc.authoridTürkoğlu, Muhammet/0000-0003-3084-6747
dc.contributor.authorTürkoğlu, Muhammet
dc.date.accessioned2025-01-27T20:59:47Z
dc.date.available2025-01-27T20:59:47Z
dc.date.issued2010
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this study, weekly distributions of inorganic nutrients and phytoplankton cell volumes were investigated in relation to the hydrology of the Dardanelles. The data were collected between March 2001 and March 2002. NO2-+NO3-, PO4-3, and SiO4 concentrations ranged between 0.050-6.887 mu M, 0.051-1.152 mu M, and 0.64-10.74 mu M, respectively. During the study, the highest nutrient values were measured between late fall and mid-winter. Inorganic N:P and Si:P ratios in the surface water were lower due to high PO4-3 concentrations. The chlorophyll a concentrations ranged from 0.03 to 8.67 mu g L-1. Phytoplankton cell density and cell volume ranged from 1.54E + 05 to 6.46E + 07 cell L-1 (mean 7.65E + 06; SD 1.44E + 07 cell L-1) and from 2.51E + 09 to 8.66E + 10 mu m(-3) L-1 (mean 1.98E + 10; SD 1.86E + 10 mu m(-3) L-1) between less productive and high productive periods. During the study period, 8-10 species controlled the phytoplankton community structure in the coastal zone of the Dardanelles. Others did not contribute to the phytoplankton population and they only can be considered as accessory species, which do not cause significant fluctuations in the phytoplankton production. Relationships between chlorophyll a, cell density, and cell volume of phytoplankton revealed that chlorophyll a is rather controlled by the cell density than by the cell volume. Furthermore, the physicochemical variables, such as nutrients and chlorophyll a and phytoplankton cell density and cell volume, are affected by the counter flows in the Dardanelles. Phytoplankton population was more limited by nitrogen than by phosphate due to extra phosphate inputs coming from various sources, such as domestic waste waters as well as the vertical mixing between upper and lower layers.
dc.description.sponsorshipCanakkale Onsekiz Mart University [COMU-BAP-2000/22]
dc.description.sponsorshipThis short-term research program has been supported by Research Fund of the Canakkale Onsekiz Mart University (COMU-BAP-2000/22). We gratefully thank the Dr. Sukru Besiktepe, the former director, and Dr. Suleyman Tugrul, head of the Department of Chemical Oceanography, Institute of Marine Sciences, Middle East Technical University, and the technicians of the Institute of Marine Science, the Middle East Technical University (METU-IMS) for their help and instructions in nutrient analyses.
dc.identifier.doi10.3906/biy-0810-17
dc.identifier.endpage333
dc.identifier.issn1300-0152
dc.identifier.issn1303-6092
dc.identifier.issue3
dc.identifier.scopus2-s2.0-77955464967
dc.identifier.scopusqualityQ1
dc.identifier.startpage319
dc.identifier.trdizinid104302
dc.identifier.urihttps://doi.org/10.3906/biy-0810-17
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/104302
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26826
dc.identifier.volume34
dc.identifier.wosWOS:000281781500012
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.publisherTubitak Scientific & Technological Research Council Turkey
dc.relation.ispartofTurkish Journal of Biology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectTurkish Straits System
dc.subjectDardanelles
dc.subjectphytoplankton
dc.subjectchlorophyll a
dc.subjectnutrients
dc.titleTemporal variations of surface phytoplankton, nutrients and chlorophyll a in the Dardanelles (Turkish Straits System): a coastal station sample in weekly time intervals
dc.title.alternativeÇanakkale Bo?azı (Türk Bo?azlar Sistemi) yüzey sularında fitoplankton, besin tuzları ve klorofil a da meydana gelen zamansal de?işimler: Haftalık zaman aralı?ında bir kıyısal istasyon örne?i
dc.typeArticle

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