the aim of this study was to determine and compare the concentration of copper (cu) in liver and muscle of two fish species squalius cephalus and capoeta capoeta gracilis. the fish were caught in four sampling sites along tajan river, mazandaran province, northern iran. the concentration of cu was determined using flame atomic absorption spectrometry. there were significant differences (p

As in evaluation of the nutritive value of food articles, Iranian nutritionist used to use the nutritional tables from scientific resources other than the native ones, such differences could be regarded as source of error when the homemade fish oil products are used as a supplement of Vitamin D3 in the recommended diets; however, to clearly address the issue, more study should be conducted on t...

The histopathological effects of Linear Alkylbenzene Sulfonate on the gill, liver and kidney tissues of the Caspian kutum, Rutilus frisii kutum were studied. The fish were exposed to three sublethal concentrations of anionic detergent, Linear Alkylbenzene Sulfonate (LAS) for short term intervals (192 h). Gill, liver and kidney samples were collected after 192 h of exposure to LAS and lesions we...

the objectives of this work was to examine the toxicological effect and molecular changes caused by a heavy metal pollutant mercuric chloride (hgcl2), in fresh water snakehead channa punctatus, locally known as taki fish in bangladesh. when fishes were exposed to hgcl2, it induced death of the fishes in a concentration-dependent manner. 1 mm, the highest concentration tested in this study, was ...

background: polycyclic aromatic hydrocarbons (pahs) are a predominant group of contaminants that have been shown to accumulate and persist in marine organisms. we evaluated the dose-dependent induction of the cytochrome p4501a (cyp1a) system in the sturgeon fish, huso huso after after exposure to pahs, beta-naphthoflavone (bnf) and 3- methylcholantheren. methods: the fish were treated by i.p. i...

A method using liquid chromatography/tandem mass spectrometry (LC/MS/MS) was developed for the determination of 17alpha-ethynylestradiol in fish liver; a second method using LC/MS was developed for the determination of carbamazepine, diazepam, simvastatin, and oxybenzone in fish liver. The fish liver samples were extracted and cleaned up by using liquid-liquid extraction and solid-phase extract...

this study compared the effects of different levels of dietary fat on growth performance, liver enzymes and blood biochemical of juvenile siberian sturgeon (acipenser bearii) was designed for 12 weeks. for this reason 135 fish (15.6 ± 0.33g; mean ± sd) at nine 500 liter fiberglass tanks, each one containing 15 fish. three experimental diets with the same protein (42 %) and 3 fat levels 10, 15 a...

background: there is much evidence indicating that natural substances from edible and medicinal plants possess powerful antioxidant and hepatoprotective activities. the objective of the present study was to investigate the potential hepatoprotective effect of silymarin in fish exposed to malathion. methods: zebra cichlid fish were allocated into five groups of which one group received normal fe...

The activity of glutathione-S-transferase (GST) in blood and liver in two elasmobranch and ten teleost Black Sea fish species belonging to four ecological groups was studied. Enzymatic activity varied independently in blood and liver. The interspecies differences of GST activity were associated with the specific fish taxonomic position, biology and ecology. Hepatic GST level in fish was higher ...

211 Abstract: The present study was carried out to examine the relationship between helminth infections, nutrient reserves and gonadal status in powan in relation to infection with Diphyllobothrium spp. The relationship between fish size and body composition was also investigated. The condition factor increased with increasing length for uninfected fish and decreased for infected fish. This dem...