Publication Date:
2021-05-19
Description:
In this study, the Tagan and Sorkh rod River in province in the northwest region of Iran, were consider and
physico-chemical water parameters , phytoplankton, zooplankton and benthos cumunity , were identify and were
measured also measured some organoic toxin (in water) during a year (2011 )all conducted was done at three
stations. The purpose of this study was to assess the quality of water for aquaculture activities and realizing
fingerling fish .
In most cases between Physico-chemical parameters in Tagan and Sorkhrod river,in EC,TDS ,SAL ,NH4 , Ca ,
Mg difference was statistically significant (P〈0.05). Mean physico-chemical factors including water
temperature in Tagan and Sorkhrod river respectivity 27±0.95,26.4±0.67±,25.6 ° C, DO: 7.4±0.16, , 7.8
±0.14mg.l^-1; pH: 7.97±0.5 , 7.77±0.6, TDS: 7994±557 , 1317±257 mg.l^-1; EC: 11920 ±838, 1583±368 µ.cm^-1;
Ca: 470±57 ,Mg: 57±11 mg.l^-1, NH4
+
: 0.390±0.05 , 0.141±0.03 mg.l^-1; NO2
-
: 0.030 ±0.007, 0.034±0.032 mg.l^-1;
NO3
-
: 0.330±0.085 ,0.420±0.034 mg.l^-1; PO4
-3: 0.049±0.003 to 0.051±0.007 mg.l^-1;salinity:10091±746
,1247±238 mg.l^-1and total hardness: 3600±460, 406±76 mg.l^-1 calcium carbonate, respectively.
The samples water from Tagan ,Sorkhrod , Tonekabon and Shirod river have organo clore toxin enclouded: g-
BHC, B-Endosulfan, Endosulfan sulfate,. Aldrin, DDD Heptachlor, Lindane .Results showed that concentrations
of o,c.t in cases were not the limit of detection. Range of this option maximom to minimom in river were 0.10 to
0.22 mg/l . this result keep in renge of organization U.S.A .This level not dangerous for live and realize figerling
fish.
Phytoplankton: The phytoplankton species were identified from the five phyla, including 56 species in sorkhrod
and 52 species in tagan river . In Tagan Bacillariophyta and Chlorophyta phyla 75% of total percentage phyto
and in sorkhrod Bacillariophyta and Chlorophyta , 93% of total percentage phytoplankton.
Zooplankton: During the study period, four major groups Holozooplankton including Rotatoria and protozoa,
Copepoda and Cladocera in Tagan river and Sorkhrod were observed.
Macro benthos: The benthos species were identified from the seven family, including, Cardidae, , Spionidae ,
Tubificidae ،Lumbriculidae , Lumbricidae , Chironomidae Elmidae. Comparison Mean biomas between
Tagan and Sorkhrod show ,sorkhrod with 3.4g/m^3
biomas in tagan with0.32g/m^3
biomas has beter coundithion
for realize finger ling Rutilus frisii katum .
Description:
Iranian Fisheries Science Research Institute
Description:
Published
Keywords:
Physico-chemical
;
Water quality
;
Parameter biologic
;
Rutilus frisii katum
;
Fingerlings
Repository Name:
AquaDocs
Type:
Report
,
Refereed
Format:
50pp.
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