Damages produced from the blue – green algae founding on microorganisms in water resources

الأضرار الناجمة من تواجد الطحالب الخضراء المزرقة على الأحياء المجهرية في مصادر المياه

Abstract

This study is concerned with the hazards resulting from toxins that productive from cyanobacteria in aquatic environment. The important contamination for water source known and/or unknown and identify on algae that responsible on productive of toxin in water that represented by Aphanizomenon, Anabaena, Microcystis, Lyngbya, Oscillatoria, Phormidium, Cylindrospermum and suitable environment for algae to productive toxin, such as temperature, pH, nutrient, salinity, illumination density identify on the toxin concentration in water that content organisms that productive toxin between     (1-100 mg / l) .