Seasonal changes of phytoplankton communities in the coastal waters of the Gulf of Erdek from November 2006 to August 2008 were examined in relation to some environmental variables and 95 species from 6 different algae groups were identified. In addition, two species were recorded for the first time in the Turkish coastal waters and one species for the Sea of Marmara. The maximum total phytoplankton abundance (1.99 × 10⁵ cells L^-1) were observed in May 2008, with Pseudo-nitzschia sp. being the most dominant species of that month (1.52 × 10⁵ cells L^-1). Both the Bray-Curtis diversity index and the Euclidean distance indicated that the upper and lower water layers were separated from each other at the stations, and the Spearman’s rank-correlation and CCA analyses also showed that environmental variables affected the abundance of species. Furthermore, according to the CCA diagram, especially the temperature and dissolved oxygen had a bigger impact on the distribution of species. The Shannon-Wiener diversity index (Hʹ) values were low when Pseudo-nitzschia sp., Prorocentrum micans, Gymnodinium sp. and Prorocentrum scutellum were dominant over other species in the sampling period.

中文翻译：

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与埃德克湾沿海水域环境状况有关的浮游植物组成

根据一些环境变量，研究了2006年11月至2008年8月厄尔德克湾沿海水域浮游植物群落的季节性变化，并确定了来自6个不同藻类的95种。此外，在土耳其沿海水域首次记录了两个物种，在马尔马拉海记录了一个物种。在2008年5月，Pseudo-nitzschia sp。观测到最大的浮游植物总丰度（1.99×10 ⁵细胞L ^-1）。是该月最主要的物种（1.52×10 ^5个细胞L ^-1）。Bray-Curtis多样性指数和欧几里得距离都表明站的上，下水层彼此分离，并且Spearman的等级相关性和CCA分析还表明，环境变量影响物种的丰度。此外，根据CCA图，特别是温度和溶解氧对物种分布的影响更大。香农-威纳多样性指数（H' ）值均较低时，拟菱形藻属，具齿原甲藻，裸甲藻。在取样期内，盾片虫和盾片虫比其他物种占优势。