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Mansouri B.,Birjand University | Ebrahimpour M.,Birjand University | Babaei H.,Inland Water Aquaculture Research Institute
Toxicology and Industrial Health | Year: 2012

Since toxicity is based on the effect that a toxicant produces at a target site within an organism, establishing the relationship between the concentration of substance at the target site and the subsequent toxic effect can provide a tool for predicting toxicity. This article aims to investigate the patterns of bioaccumulation and elimination of nickel in the selected organs of black fish (Capoetafusca) exposed to two treatments of nickel (4.5 and 12.7 mg/L) for a period of 30 days. Nickel was assayed using Shimadzu AA 680 atomic absorption spectrophotometer, and the results were given as μg/g wet weight. This finding showed that the accumulation patterns of nickel, for lower sub-lethal (LSL) and higher sub-lethal (HSL) concentrations of nickel, are in the following order: gill > liver > muscle > skin. The elimination patterns of nickel are in the following order: gill > skin > muscle > liver, for LSL concentration, and gill > skin > liver > muscle, for HSL concentration of nickel. The results show that the target organ for accumulation and elimination of nickel is gill. © 2011 The Author(s). Source


Mansouri B.,Islamic Azad University at Kermanshah | Babaei H.,Inland Water Aquaculture Research Institute | Hoshyari E.,Birjand University
Environmental Monitoring and Assessment | Year: 2012

The main objectives of article were monitor the metal concentrations of cadmium, lead, copper, zinc, cobalt, and iron, in the feather of shorebirds species, Western Reef Heron (Egretta gularis) and Siberian Gull (Larus heuglini) from Hara Biosphere Reserve of Southern Iran; and identify any relationships between species. Assaying heavy metals by using Shimadzu AA 680 flame atomic absorption spectrophotometer, the results were given as micrograms per gram dry weight. The concentrations of heavy metal were found to follow the order of iron>zinc>copper>lead>cadmium>cobalt for E. gularis and of iron>zinc>lead>copper>cadmium>cobalt for L. heuglini. Also, they showed that the cadmium, copper, and cobalt concentrations were higher in females than in the males, while the lead concentration for E. gularis and L. heuglini was higher in males. The cadmium concentration means they were measured as1.16 and 1.37 μg/g for E. gularis and L. heuglini, respectively, whereas the lead concentration means 7.04 and 5.48 μg/g for E. gularis and L. heuglini, respectively. The concentrations of nonessential trace elements in E. gularis and L. heuglini were generally comparable to values reported in other studies. The average levels of lead we observed in these birds were greater than 5 μg/g dry weight in the feather that is known to be associated with adverse behavioral or reproductive effects. Data analysis showed that there was a positive correlation between copper and zinc (P<0.01), copper and cobalt (P<0.05). © Springer Science+Business Media B.V. 2012. Source


Naji A.,Hormozgan University | Ismail A.,University Putra Malaysia | Kamrani E.,Hormozgan University | Sohrabi T.,Inland Water Aquaculture Research Institute
Bulletin of Environmental Contamination and Toxicology | Year: 2014

Metallothionein (MT) concentrations in gill and liver tissues of Oreochromis mossambicus were determined to assess biological response of fish to levels of some metals. Metal concentrations in gill and liver tissues of O. mossambicus ranged from 0.6 to 2.6 for Cd, 16 to 52 for Zn, 0.5 to 17 for Cu and 2 to 67 for T-Hg (all in μg/g wet weight, except for T-Hg in ng/g wet weight). Accumulation of Cd, Zn, Cu and Hg (μg/g wet weight) in the liver and gills of O. mossambicus were in the order of liver>gills. The concentrations of Cd, Zn, Cu and Hg in fish tissues were correlated with MT content. The increases in MT levels from the reference area Puchong Tengah compared to the polluted area Kampung Seri Kenangan were 3.4-And 3.8-fold for gills and livers, respectively. The results indicate that MT concentrations were tissue-specific, with the highest levels in the liver. Therefore, the liver can act as a tissue indicator in O. mossambicus in the study area. © Springer Science+Business Media New York 2014. Source


Mansouri B.,Birjand University | Ebrahimpour M.,Birjand University | Pourkhabbaz A.,Birjand University | Babaei H.,Inland Water Aquaculture Research Institute | Farhangfar H.,Birjand University
Journal of Animal and Plant Sciences | Year: 2012

The objective of the present study was to investigate the pattern of accumulation and elimination of cobalt on selected organs of Capoeta fusca, after chronic exposure. During July to September 2010, C. fousca was obtained from qanat in Birjand. Cobalt accumulation and elimination were studied in fish exposed to one- thirty of LC50 taken as 6.8 mg/L of 96 hr LC50 concentration of cobalt over 30 days of exposure. The cobalt was assayed using Shimadzu AA 680 atomic absorption spectrophotometery and the results were given as μg/g wet wt (from fish). This finding showed that the accumulation patterns of cobalt are in the following order: liver>muscle>gill>skin. The elimination patterns of cobalt are in the following order: skin>gill>muscle>liver. The bioaccumulation and elimination of cobalt was significantly increased in the organs of C. fusca (p<0.01). The accumulation of cobalt in C. fusca was observed to be rapid and bioaccumulation increasing metal concentration in the water and with exposure time. In conclusion, the results of the present study showed that the accumulation and elimination of cobalt in C. fusca is dependent on organ and time. Source


Ghaninejad D.,Inland Water Aquaculture Research Institute | Abdolmalaki S.,Inland Water Aquaculture Research Institute | Kuliyev Z.M.,Azerbaijan Academy of Sciences
Iranian Journal of Fisheries Sciences | Year: 2010

The paper focuses on some of the biological characteristics of the golden grey mullet, Liza aurata in the Iranian waters of the Caspian Sea. Samples of commercial catch of mullet obtained by means of beach seine fishing cooperatives along the Iranian coasts of the Caspian Sea (2007-2008) as monthly interval. Samples were subjected to biometric measurement to specify their biological characteristics. The male/female ratio in the present study was 1:1.22 which deviated significantly from 1:1 common sex ratio (X2=7.7, Sig, level=0.006). During this study, the peak of the spawning time for the golden grey mullet occurred in October in waters off- Gilan shore whereas it occurred in November off Mazandaran and Golestan provinces. The highest Gonado-Somatic Index (GSI) was found to occur during late September and October which declined to its lowest level in November and December and remained relatively stable during January to April. Therefore, spawning of L. aurata started earlier in Gilan and ended later in Golestan Province. The average absolute fecundity of the golden grey mullet was 700881± 429987 (± SD) eggs with a range of 200112 to 2282862 eggs. The length of females at 50% sexual maturity of the golden grey mullet was estimated 28.4 cm. Source

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