Document Details

Document Type : Article In Journal 
Document Title :
Occurrence of Cyanobacteria and their Possible Toxicity
الطحالب الخضراء المزرقة ومدى سميتها
 
Subject : Botany 
Document Language : English 
Abstract : A study has been made on the freshwater Cyanobacteria in Makkah province. For this purpose, four different locations were monitored, namely; Wadi-Fatimah, Khulays, Ash-Sharayi & Zaymah, and At- Taif & El-Hada. It could be concluded that the number of algal taxas was obviously affected by the pH value and the level of salinity in the different locations under investigation. The maximum number of taxa was recorded in Wadi- Fatimah location (39) being with distinctly low salinity level and rather alkaline pH. Conversely, the least population (10 taxa) was determined in At- Taif & AI-Hada location with relatively high salinity and mild alkalinity. Concerning the frequency of cyanobacterial taxa in each location, Wadi- Fatimah could be assumed as the sole location in which abundant and frequent populations were recorded, compared with other locations, where the taxa recorded showed rare occurrence. Also, preliminary toxicity tests, using different doses of algal extract, with either rabbits or germinating wheat grains indicated absence of toxic substances. 
ISSN : 1012-1319 
Journal Name : Science Journal 
Volume : 1 
Issue Number : 1 
Publishing Year : 1409 AH
1989 AD 
Number Of Pages : 7 
Article Type : Article 
Added Date : Sunday, October 11, 2009 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
عبدالفتاح عبدالمحسن A. F. MOHSENResearcher  
عمر عبدالله العاموديO. A. AL-AMOUDIResearcher  

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