Journal of Resources and Ecology ›› 2019, Vol. 10 ›› Issue (4): 432-440.DOI: 10.5814/j.issn.1674-764X.2019.04.010

• Environmental Pollution and Ecosystem • Previous Articles     Next Articles

Report on the Diatoms and Dinoflagellates Distribution along the Algerian Coasts: Inter-Region Comparison

Zakia MOKRANE1,2,*(), Mustapha BOUDJENAH1,3, Yasmina BELKACEM1, EL Hadi MORSLI1, Ahmed INAL1, Fahima BOUARAB1   

  1. 1. National Center for Research and Development of Fisheries and Aquaculture (CNRDPA)/ Bou-Ismail, Tipaza 42415, Algeria
    2. FSB-USTHB/ Pelagic ecosystem laboratory, Algiers No 32 El-Alia, Bab Ezzouar 16111, Algeria
    3. Department of Marine Sciences, Faculty of Natural and Life Sciences, Abdelhamid Ibn Badis University of Mostaganem P. 300, Algeria
  • Received:2018-08-14 Accepted:2019-01-28 Online:2019-07-30 Published:2019-07-30
  • Contact: Zakia MOKRANE
  • About author:

    First author: DOU Qun, E-mail:

  • Supported by:
    Aquatic Environment Monitoring and Quality Research Program Funded by the National Center for Research and Development of Fisheries and Aquaculture (AIEA-RAF 7012 Project)


The phytoplankton group’s composition is an excellent indicator of the state of coastal waters. The aim of this study is to explore spatial variability of phytoplankton in shallow coastal areas from different regions (East, Center and West) of the Algerian coast. The quantitative and qualitative study of the phytoplankton population was conducted on samples taken during the 2012-2013 period by the research vessel GRINE BELKACEM. The qualitative results show a significant diversity of diatoms and dinoflagellates, which rank first and second in the total flora (Fr > 50%). This finding is also confirmed quantitatively by the abundance values in both 2013 and 2012 samples which largely exceeds the average value in most other areas of the western region (56%) and slightly exceeding 52% in all central areas which represent an equi-distribution between diatoms and dinoflagellates. The Dinoflagellates contribute significantly to the quantitative richness in the eastern region (>60%). The minimum value of Dia/Dino index, recorded in the eastern region confirms the dominance of the dinoflagellates especially in Skikda (0.31) (Skikda).However, our results reveal the presence, in smaller proportion, of other groups such as the cocolithophoridae and euglenophyceae.

Key words: Phytoplankton, composition, Dia/Dino index, Algerian coast