First bloom report of Polykrikos hartmannii (Dinophyceae) in the coastal waters of İzmir Bay, Aegean Sea (Eastern Mediterranean)
Yazarlar (5)
Fatma Çolak Sabanci
Ege Üniversitesi, Türkiye
Doç. Dr. Fatih ŞAHİN Sinop Üniversitesi, Türkiye
Ismael Gárate-Lizárraga Centro Interdisciplinario De Ciencias Marinas, Meksika
Edanur Erbaş
Ege Üniversitesi, Türkiye
İbrahim Tan Tubıtak Marmara Research Center, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Hidrobiologica (Q4)
Dergi ISSN 0188-8897 Dergi Bilgileri (2025)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 04-2025
Cilt / Sayı / Sayfa 35 / 1 / 57–65 DOI 10.24275/vfph4819
Makale Linki https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/1799
UAK Araştırma Alanları
Su Ürünleri Temel Bilimler Deniz Biyolojisi
Özet
COLAK SABANCI, Fatma et al. First bloom report of Polykrikos hartmannii (Dinophyceae) in the coastal waters of İzmir Bay, Aegean Sea (Eastern Mediterranean). Hidrobiológica [online]. 2025, vol. 35, n. 1, pp. 57-65. Epub 28-Nov-2025. ISSN 0188-8897. https://doi. org/10.24275/vfph4819.Background.Harmful algal blooms have increased in frequency, intensity and distribution in the last decades around the world. This increase has also been observed for the waters of the Mediterranean Sea. In November 2023, several reddish patches were observed in İzmir Bay (Aegean Sea); the dinoflagellate Polykrikos hartmannii was the causative agent.Goal.The purpose of this study was to report for the first time a bloom of this species in İzmir Bay.Methods.During the bloom, surface samples of seawater were collected using 1 liter plastic bottles at eleven sampling stations and fixed with Lugol for cell counting, which were performed under an OLYMPUS BX-50 microscope, using 1 ml Sedgewick-Rafter chambers. Samples were collected for live analysis and correct identification of the responsible species.Results.The moderate bloom occurred in November 2023 was caused by Polykrikos hartmannii. During the bloom two-celled chains were the predominant species, with single cells occurring less frequently. The highest cell abundance (4.8 x 104 cells L-1) was observed at station 29 in the inner bay. Cell sizes were 29.7-34.6 μm long, and 39.6-44.5 μm wide.Conclusions.Living samples allowed correct identification of P. hartmannii. Cells tend to become round or disrupted when preserved with Lugol’s solution. This may be why this species has not been …
Anahtar Kelimeler
eastern Mediterranean | phytoplankton | Polykrikos hartmannii | unarmored dinoflagellates | İzmir Bay
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 3
Scopus 4
Google Scholar 7
First bloom report of Polykrikos hartmannii (Dinophyceae) in the coastal waters of İzmir Bay, Aegean Sea (Eastern Mediterranean)

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