Trace Element Level in Different Tissues of Rutilus frisii kutum Collected from Tajan River, Iran

Abstract

Tajan River is among the most significant rivers of the Caspian Sea water basin. In this study, the concentration of Cr, Cu, Fe, Mn, Ni, Pb, Cd, and Zn were determined in brain, heart, liver, gill, bile, and muscle of Rutilus frisii kutum which has great economic value in the Mazandaran state. Trace element levels in fish samples were analyzed by means of atomic absorption spectrometry. Nearly all non-essential metals levels (Ni, Pb, Cd) detected in tissues were higher than limits for fish proposed by FAO/WHO, EU, and TFC. Generally, non-essential metals (Ni, Pb) were so much higher in muscle than the essential metals (Cu, Zn, and Mn) except Fe, which was higher than other metals in nearly all parts, except in gills. Fe distribution pattern in tissues was in order of heart>brain>liver>muscle>bile>gill. Distribution patterns of metal concentrations in the muscle of fish as a main edible part followed the sequence: Fe>Pb>Ni>Cu>Mn>Zn>Cd.

Seasonal Investigation of Selected Mineral Contents in Meat, Gills, and Liver of Perch (Perca fluviatilis L.) from Western Poland

“…It appears that the concentrations of all metals behave in a similar way in the examined tissues. The liver is the major organ involved in xenobiotic metabolism in fish through specific binding proteins known as metallothioneins [3,11,13]. It is well known that a large amount of metallothioneins occurs in the liver cells of fish because metals mainly accumulate in metabolically active tissues.…”

“…1) in western Poland during spring, summer, and autumn. Differences in the metal content in various tissues may result from their different capabilities to induce metalbinding proteins such as metallothioneins, which are low molecular weight proteins with high cysteine content [3,11,13]. Muscles are not always a good indicator of overall fish metal contamination, and therefore it is important to analyze other tissues, such as the liver and gills [5].…”

Determination of Trace Element Level in Different Tissues of the Leaping Mullet (Liza saliens, Mugilidae) Collected from Caspian Sea

“…Subsequently, 0.1 mL of concentrated nitric acid and 50 μL of hydrogen peroxide were added, and the freed metal salts were determined using flame atomic absorption spectroscopy (PerkinElmer AAS 100, Wellesley, MA). The results are expressed as micrograms of element per gram of tissue wet weight [12]. The digestion and analytical procedures were checked by analysis of standard reference material (DORM-2 and DOLT-3 National Research Council Canada, Ottawa, ON, Canada).…”

“…The digestion and analytical procedures were checked by analysis of standard reference material (DORM-2 and DOLT-3 National Research Council Canada, Ottawa, ON, Canada). Three times the standard deviation was used as detection limit [12].…”

Removal of Pb (II) Ions from Aqueous Solutions byCladophora rivularis(Linnaeus) Hoek

“…Pb(II) is a strong neurotoxic metal, so the pollution of this material is of high concern. The occurrence of lead in drinking water, however, in low concentrations, may cause diseases such as anemia, hepatitis, and nephrite syndrome [2]. There are much information with reference to the biosorption of lead metal ion on marine algae [3, 4], green seaweed [5], and freshwater green algal species [6], with unreliable removal of efficiencies, maximum adsorption capacities ( q max⁡ ), and binding constants.…”