SURVIVAL TIME OF ACIPENSER PERSICUS FINGERLINGS IN DIFFERENT CONCENTRATIONS OF SEPIDROOD DAM DEPOSITS

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MAHDINEZHAD K.; YOUSEFI GRAKOUEI M.

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Paper Information

Journal: JOURNAL OF BIOLOGY SCIENCE Year:2009 | Volume:3 | Issue:2 (SERIES NO. 9) Page(s): 71-79

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Information Journal Paper

Title

SURVIVAL TIME OF ACIPENSER PERSICUS FINGERLINGS IN DIFFERENT CONCENTRATIONS OF SEPIDROOD DAM DEPOSITS

Author(s)

MAHDINEZHAD K. | YOUSEFI GRAKOUEI M. | Issue Writer Certificate

Keywords

SURVIVAL TIMEQ3

CONCENTRATIONQ3

SEDIMENTSQ3

ACIPENSER PERSICUSQ4

SEPIDROOD RIVERQ3

Abstract

During Chasse operations, more than 15 ´ 106 tons from 56-87 ´ 10 6 m3 yearly interred SEDIMENTS into Sepidrood dam are off- loaded into the river. The amount of TSS in the river reaches even more than 300 g/l, while its amount equals 55 mg/l in normal currents. The main aim of this survey was to study the ecological effect and lethal CONCENTRATION of dam deposits on A. persicus fingerlings. Five treatments (10, 20, 30, 40 and 50 g/l with 3 replications and blank) of SEDIMENTS were used with 10 A. persicus fingerlings (average weight=3- 4.8 g) in 20 liter aquaria at the International Research Institute of Sturgeon. The obtained results showed that 50% fingerlings mortality was observed in the 10 g/l sediment treatment during 96 h, while in 20- 30 g/l and 40-50 g/l mortality was observed at 72 and 48 h, respectively. Increasing in SEDIMENTS CONCENTRATIONs was effective in decreasing the time range for mortality. Correlation between fingerlings mortality and time was linear and between 85- 99%. The total mortality of fingerlings was 76/7- 96/7% during 96h.The significant differences were observed between mortality recorded among the five treatments for different time periods. The results obtained indicate that 300 g/l suspended SEDIMENTS CONCENTRATION during the Chasse operation of Sepidrood dam is lethal for the most of fish fingerlings in a few hours.

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اثرات زیست محیطی عملیات شاس بر زیستگاه آبزیان رودخانه سفیدرود (همایش)

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APA: Copy

MAHDINEZHAD, K., & YOUSEFI GRAKOUEI, M.. (2009). SURVIVAL TIME OF ACIPENSER PERSICUS FINGERLINGS IN DIFFERENT CONCENTRATIONS OF SEPIDROOD DAM DEPOSITS. JOURNAL OF BIOLOGY SCIENCE, 3(2 (SERIES NO. 9)), 71-79. SID. https://sid.ir/paper/355845/en

Vancouver: Copy

MAHDINEZHAD K., YOUSEFI GRAKOUEI M.. SURVIVAL TIME OF ACIPENSER PERSICUS FINGERLINGS IN DIFFERENT CONCENTRATIONS OF SEPIDROOD DAM DEPOSITS. JOURNAL OF BIOLOGY SCIENCE[Internet]. 2009;3(2 (SERIES NO. 9)):71-79. Available from: https://sid.ir/paper/355845/en

IEEE: Copy

K. MAHDINEZHAD, and M. YOUSEFI GRAKOUEI, “SURVIVAL TIME OF ACIPENSER PERSICUS FINGERLINGS IN DIFFERENT CONCENTRATIONS OF SEPIDROOD DAM DEPOSITS,” JOURNAL OF BIOLOGY SCIENCE, vol. 3, no. 2 (SERIES NO. 9), pp. 71–79, 2009, [Online]. Available: https://sid.ir/paper/355845/en

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