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Journal:   JOURNAL OF LARGE ANIMAL CLINICAL SCIENCE RESEARCH (JOURNAL OF VETERINARY MEDICINE)   2008 , Volume 2 , Number 5; Page(s) 15 To 19.
 
Paper: 

Effects Of Different Concentrations Of Phosphorous On The Growth Of The Cyanobacteria Jaaginema Sp. And Its Toxic Effects On Aquatic Organisms
 
 
Author(s):  Heydari Negin*, Nejat Khah P., Ramezanpour Z., Sabahi Asl M.
 
* ISLAMIC AZAD UNIVERSITY, NORTH TEHRAN BRANCH, FACULTY OF MARINE SCIENCE AND TECHNOLOGY, MARINE BIOLOGY GROUP
 
Abstract: 
Consuming toxins produced by algal species in running waters and freshwater bodies can have deleterious effects on fish and other aquatic organisms. These toxins are produced by harmful algal blooms (HAB) of cyanobacteria in water. These blooms can be caused by several factors including light, temperature, carbon dioxide, phosphorous and nitrogen. The effects of different concentrations of phosphorous on stimulating and inhibiting growth in cyanobacterial species Jaaginema sp. was studied in this paper. Pure cultures of Jaaginemasp. were cultured in two culture media (Z8 and BG11) using two different concentrations of phosphorous. Four replicates were run for each experimental group and one control group with normal concentration of phosphorous was also studied. Water temperature was 25 ± 1°C and light intensity was 2200 lux. Observations were made once every 48 h. This species appeared yellow in the BG11 medium and green in the Z8 medium. Counting was made using a hemocytometer and the microscopic observations were made under a light microscope. Results obtained were analyzed using computer based software like SPSS and Excel. Growth rates in the cyanobacterium species were significantly higher in the treatment with phosphorous concentrations of two times the original concentration. Higher concentrations of phosphorous resulted in inhibiting growth in this species. It is evident from the results obtained that phosphorous can be considered a growth inhibiting factor for cyanobacteria and thus influence the occurrence of blooms and release of toxins into water bodies.
 
Keyword(s): CYANOBACTERIA, TOXIN, JAAGINEMA SP, PHOSPHOROUS, GROWTH RATE, ALGAL BLOOM
 
 
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APA: Copy

HEYDARI, N., & NEJAT KHAH, P., & RAMEZANPOUR, Z., & SABAHI ASL, M. (2008). EFFECTS OF DIFFERENT CONCENTRATIONS OF PHOSPHOROUS ON THE GROWTH OF THE CYANOBACTERIA JAAGINEMA SP. AND ITS TOXIC EFFECTS ON AQUATIC ORGANISMS. JOURNAL OF LARGE ANIMAL CLINICAL SCIENCE RESEARCH (JOURNAL OF VETERINARY MEDICINE), 2(5), 15-19. https://www.sid.ir/en/journal/ViewPaper.aspx?id=190035



Vancouver: Copy

HEYDARI NEGIN, NEJAT KHAH P., RAMEZANPOUR Z., SABAHI ASL M.. EFFECTS OF DIFFERENT CONCENTRATIONS OF PHOSPHOROUS ON THE GROWTH OF THE CYANOBACTERIA JAAGINEMA SP. AND ITS TOXIC EFFECTS ON AQUATIC ORGANISMS. JOURNAL OF LARGE ANIMAL CLINICAL SCIENCE RESEARCH (JOURNAL OF VETERINARY MEDICINE). 2008 [cited 2022August18];2(5):15-19. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=190035



IEEE: Copy

HEYDARI, N., NEJAT KHAH, P., RAMEZANPOUR, Z., SABAHI ASL, M., 2008. EFFECTS OF DIFFERENT CONCENTRATIONS OF PHOSPHOROUS ON THE GROWTH OF THE CYANOBACTERIA JAAGINEMA SP. AND ITS TOXIC EFFECTS ON AQUATIC ORGANISMS. JOURNAL OF LARGE ANIMAL CLINICAL SCIENCE RESEARCH (JOURNAL OF VETERINARY MEDICINE), [online] 2(5), pp.15-19. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=190035.
 
 
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