بررسی وضعیت اکولوژیک استخرهای پرورشی میگوی وانامی ‭Litopenaeus vannamei ‬در چونبده آبادان

Following to to introduce Vannamei shrimp (Litopenaeus vannamei) into Iran aquacultre industries by fisheres organization its postlarve were successfully reared in ponds in Bousher and Choebdeh in Khuzestan. Due to activity of Shrimp site and importance of input and output water quality, this study was done in 11 stations including: two stations in Bahmanshir river, two station in C4 and C5 irrigation canals, six staions in active farms along C4 canel (Yonesi, Mosavei and Salman Zadeh), and C5 canel (Mohamadi, Khairi and Ashraf Por) and one staion in output draing were selected. Sampeling were carried out from May2009 befor beginning stocking to harvest time in October 2009. Physico- chemical parameters and plankton sampled biweekly and benthic animals and heavy metals were sampled montly. Some parameters such as pH and temperature by using portable multy parameters and others. Analysed with standard methods. Heavy metals were measured by plarography method (797 Vamtro). Plankton and benthose samples were studied only in Bahmanshir station. According to results the maximum values for DO (11.1 ppm) PO4 (1.86 ppm) NO3 (8.4 ppm) and TSS (4992 ppm), pH (8.4) NO2 (0.18 ppm) BOD5 (9.06 ppm) were measured. In comparision to aquaculture water quality standards except for TSS in river stations others are located in allowable range. We dident observed any main changes in water quality from river to out put drainage. The results of biotic parameters in river stations showed that diatoms were the most group of phytoplanktons. Zooplankton groups were Copepods, Rotifera and Protozoa. Tintinids and Nematoda larvae were the most abundant zooplankton. Benthic animals were included nine crustacean species and two annelid species. Isopods with 52% were the most and ant group. Key Word: Vannamei shrimp (Litopenaeus vannamei), Water quality, Abadan aquaculture site.

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درشت میگوها و میگوها ، کیفیت آب ، پرورش سخت پوست ، آلودگی آب