In this study, random sampling conducted and 90 individuals of Persian sturgeon having 3-5g weight, collected by trawling in 3 earthen ponds and 15 individuals having 10-20g weight, collected by small net in 3 fiberglass Vans. After recording of biometrical characteristics, the intestine and rearing water were cultured on TSA medium. Gram staining and complementary tests were conducted. In orde...

Denaturing Gradient Gel Electrophoresis is a influential and feasible device for sequence examination of the variety of complicted natural microbial populations. For PCR amplification of 16S rDNA products and specific primers were used and analyzed by denaturing gel electrophoresis in gradient. Probes specific for the cluster Genusand were designed to bind to sequences within the region amplifi...

The study was undertaken to determine bacterial contamination of warm-water fish ponds and silver carps harvested from those ponds in Guilan province, Iran. In this respect, water samples were taken from 7 ponds and investigated by testing total bacteria, coliforms, and Escherichia coli. In addition, skin swab samples of silver carps caught from each pond were studied for enumeration of the sam...

background; pollution of drinking water and ice is one of the most serious ways of water borne diseases spread. the purpose of this study was to investigate the bacterial contamination of the ice produced by ice factories in bandar abbas. methods; in this descriptive ,cross-sectional study samples were collected from seven ice factories in bandar abbas. sampling was done by standard method.    ...

the dardanelles (çanakkale strait) and bosporus (istanbul strait) which have unique hydrographical characteristics were compared regarding the metabolically active bacteria, culturable heterotrophic bacteria (hpc) and their relation to the nutrients and variable environmental parameters. the samples were taken from various depths ranging from 0-30 cm to 50 meters. the halocline stratifications ...

Background; Pollution of drinking water and ice is one of the most serious ways of water borne diseases spread. The purpose of this study was to investigate the bacterial contamination of the ice produced by ice factories in Bandar Abbas. Methods; In this descriptive ,cross-sectional study samples were collected from seven ice factories in Bandar Abbas. Sampling was done by standard method.   ...

Bacteria that are capable of degrading polycyclic aromatic hydrocarbons were enumerated by incorporating soil and water dilutions together with fine particles of phenanthrene, a polycyclic aromatic hydrocarbon, into an agarose overlayer and pouring the mixture over a mineral salts underlayer. The phenanthrene-degrading bacteria embedded in the overlayer were recognized by a halo of clearing in ...

Microbial contamination of a water distribution system was examined. The number and the taxonomy of non-pigmented and pigmented heterotrophic bacteria (HB), number of bacteria (Pseudomonas sp., Enterococcus sp., Campylobacter sp., Yersinia sp., representatives of the Enterobacteriaceae, coagulase-positive staphylococci, and C. pefringens) in the bulk water phase, biomass of zoogloeal aggregates...

Portable low-cost sensors and sensing systems for the identification and quantitative measurement of bacteria in field water are critical in preventing drinking water from being contaminated by bacteria. In this article, we reported the design, fabrication and testing of a low-cost, miniaturized and sensitive bacteria sensor based on electrical impedance spectroscopy method using a smartphone a...