Spatio-Temporal Study of Toxic and Harmful Planktonic Taxa at Two Oceanic Sites Mehdia and Moulay Bousselham, Rabat Sale Kenitra Region, Morocco, between 2017 and 2018

• 作者: A. Hal Aberrhaman B. Bouhaddioui L. A. Lrhorfi R. Bengueddour
• 来源期刊: 海洋科学期刊(英文)
• 学科: 生物学
• 关键词: Phytoplankton Surface Water TOXIC Power SPATIOTEMPORAL Evolution Mehdia Moulay Bousselham
• 年，卷（期）: 2020,（2）
• 页码范围: 41-51
• 页数: 11页
• 分类号: Q94

摘要

Phytoplankton is all cyanobacteria and microalgae (microscopic plants) present in surface water that may be carried by water currents. The study was conducted at two oceanic sites Mehdia and Moulay Bousselham, Rabat sale Kenitra region, Morocco, between 2017 and 2018. The objective of this study is to compare the spatiotemporal evolution of certain toxic planktonic species between the two sites. The planktonic species identified all have toxic potency but to varying degrees such as Alexandrium, Dinophysis, Gymnodinum, Pseudonitzschia and Proocentrum. The comparison of the abundance of these taxa in the two sites confirms that the Moulay Bousselham site is characterized by the presence of the most toxic planktonic species represented mainly by Pseudonitzschia in contrast the Mehdia site experienced an abundance of the Proocentrum kind. This situation requires a more detailed study of the essential causes of the proliferation of these species.