the studies of parasitology was performed on freshwater in farm ponds in isfahan province during the years of 2006- 2008 and in total were fished 150 fish from farm ponds of freshwater fish and dual purpose of agriculture of three regions in isfahan. the fish were 65 cyprinus carpio, 40 hypophthalmichthys molitrix and 45 ctenopharyngodon idella. the samples were taken to laboratory alive and af...

The relative differentiation of the protein content in green algae grown contours Dengizkul reservoir was due to fact that level mineralization water low at entrances(mouth) lake and high remote from it. Therefore, when growing with a Сhlorella vulgaris Beijer. Scenedesmus obliquus (Turp.) Kütz., most optimal nutrient medium is variant which juice poultry manure mixed 1,2,3 g / l water. recomme...

this study evaluated the antibacterial and antioxidant effects of tamarind water solution on shelf life of silver carp ( hypophthalmicthys molitrix ) fillet during refrigerator storage. treatments of this study were unwashed samples (control), and samples washed with 1% and 2% tamarind water solution. microbial, physicochemical and sensory analysis including total viable count (tvc), peroxide v...

Background: Copper is a trace element vital to life, but the toxic effect of water pollution with it on fish is now exhibited. Fish blood is susceptible to contaminationinduced stress and its alternation due to the hematological and immunological parameters can be utilized as toxicity indices of xenobiotics. Methods: In this study, juvenile species of silver carp with average weight of 200gr we...

background: diazinon is an organophosphorous pesticide which widely found in municipal, agricultural, and urban storm water discharges. the present study was conducted to achieve lethal concentration (lc50) and behavioral changes of rutilus rutilus caspius and hypophthal-micthys molitrix after exposure to lethal concentration of diazinon. methods: the experiment was carried out in static condit...

This article reports the organ distribution and bioaccumulation of hepatotoxic microcystins (MCs) in freshwater fishes at different trophic levels from the large, shallow, eutrophic Lake Chaohu in September 2003, when there were heavy surface blooms of toxic cyanobacteria. Among all fish, intestines and blood had the highest average content of MC-RR + MC-LR (22.0 and 14.5 microg g(-1) DW, respe...

this research aims  to monitor the trace elements content (cr, cu, pb, cd, ag, al, mn, mg, zn and fe) in the tissues of the muscle and liver of silver carp (h. molitrix ) and stone moroko (p. parva) from zarivar wetland in western iran. this research was cross-sectional. the research specimen  was fish caught from zarivar wetland. metal concentration analysis was carried out utilizing an  icp. ...

First posted April 28, 2023 For additional information, contact: Associate Director, Ecosystems Mission AreaU.S. Geological Survey12201 Sunrise Valley DriveReston, VA 20192Biological Threats and Invasive Species Research ProgramContact Pubs Warehouse U.S. Survey (USGS) research has supported management of Hypophthalmichthys nobilis (bighead carp), Mylopharyngodon piceus (black Ctenopharyngodon ...

This research aims to monitor the trace elements content (Cr, Cu, Pb, Cd, Ag, Al, Mn, Mg, Zn and Fe) in the tissues of the muscle and liver of silver carp (H. molitrix ) and stone moroko (P. parva) from Zarivar Wetland in western Iran. This research was cross-sectional. The research specimen was fish caught from Zarivar Wetland. Metal concentration analysis was carried out utilizing an ICP. Fin...