Akademik Veri Yönetim Sistemi
Environmental Monitoring and Assessment, cilt.195, sa.10, 2023 (SCI-Expanded)
The cellular carbon content based on the cell biovolume of a total of 61 microalgal species determined in a eutrophic estuary (Golden Horn, Sea of Marmara) was estimated in seawater samples taken during two different sampling periods. Cell biovolume according to geometric dimensions of the cells was then converted to phytoplankton carbon using an appropriate conversion factor. The range of diatom biovolume, in which the majority had small cell sizes (<50 μm), was much wider than that of dinoflagellate biovolume, in which the majority had large cell sizes (>50 μm). The cell biovolume and carbon content ranged from 35 to 4.88 × 105 μm3 and 5 to 1.18 × 104 pgC cell−1 for diatoms and from 3.66 × 102 to 8.68 × 105 μm3 and 55 to 8.14 × 104 pgC cell−1 for dinoflagellates, respectively. The mean carbon density for diatoms and dinoflagellates (excl. Noctiluca scintillans) varied between 0.027 and 0.099 pgC μm−3 0.096 and 0.136 pgC μm−3, respectively. The mean cell carbon content and carbon density of dinoflagellates (6.73 × 103 pgC cell−1 and 0.115 pgC μm−3) were approximately 10 and 2 times greater than those of diatoms, respectively. The carbon content of the other phytoflagellates was lower, whereas their carbon density was higher. As a result, the findings from this study will provide a significant contribution to the assessment and estimation of carbon biomass during algal blooms in this study area.