Bioaccumulation and elimination rate of cobalt in Capoeta fusca under controlled conditions

Abstract

The objective of the present study was to investigate the pattern of accumulation and elimination of cobalt in selected organs of Capoeta fusca, after chronic exposure. Samples of C. fusca were obtained from a qanat in Birjand between July and September 2010. Cobalt accumulation was studied in fish exposed to 6.8 mg L -1 of cobalt for 15 days and the elimination was investigated in the contaminated fish samples placed in tap water for another 15 days. Using atomic absorption spectrophotometry it was found that the accumulation of cobalt in tissues was in the following order: liver>muscle>gill>skin. The elimination of cobalt was in the following order: skin>gill>muscle>liver. The bioaccumulation and elimination of cobalt were significant in the organs of C. fusca (P<0.01). The accumulation of cobalt in C. fusca was rapid and increased with an increase in metal concentration in water and the duration of exposure. The results of the present study showed that the accumulation and elimination of cobalt in C. fusca depend on the type of organs and the duration of exposure.

Accumulation of metals relevant for agricultural contamination in gills of European chub (Squalius cephalus)

“…Richards and Playle (1998) reported that no significant accumulation of essential element Co by gills of trout (Oncorhynchus mykiss) occurs after exposure to natural waters supplemented by Co (∼0.5 mg L −1 ), probably due to Co competition with Ca and complexation by dissolved organic matter. Only after exposure to much higher and environmentally less realistic Co concentration (6.8 mg L −1 ), Co was found 30 times increased in the gills of a cyprinid fish (Capoeta fusca) compared to the control group (Mansouri et al 2013). Similarly, only after exposure to very high Mo concentrations in the water (5-250 mg L −1 ), Mo was accumulated in a dose-dependent manner in the gills of juvenile kokanee salmon (Oncorhynchus nerka; Reid 2002).…”

Physicochemical properties of antibiotics: A review with an emphasis on detection in the aquatic environment

“…In fact, the increasing use of antibiotics leads to the continuous release of them into the environment and their aggregation in various ecosystems can threaten human and animal health (Harrabi et al, 2018). The direct and indirect effects of many pollutants on different ecosystems and organisms have been well documented (Alavian Petroody, Hamidian, Ashrafi, Eagderi, & Khazaee, 2017;Hamidian, Razeghi, Zhang, & Yang, 2019;Hamidian, Zareh, Poorbagher, Vaziri, & Ashrafi, 2016;Khazaee et al, 2016;Majnoni, Rezaei, Mansouri, & Hamidian, 2013;Mansouri, Pourkhabbaz, Ebrahimpour, Babaei, & Hamidian, 2013;Mirzajani, Hamidian, Abbasi, & Karami, 2016;Mirzajani, Hamidian, Bagheri, & Karami, 2016;Norouzi, Mansouri, Hamidian, Ebrahimi, & Kardoni, 2012;Norouzi, Mansouri, Hamidian, Zarei, & Mansouri, 2012;Rajaei, Mansouri, Jahantigh, & Hamidian, 2012;Rezaei Kalvani, Sharaai, Manaf, & Hamidian, 2011;Taheri, Hamidiyan, & Khazaei, 2013), and various methods for their removal have been tested and implemented (Mojoudi, Hamidian, Goodarzian, & Eagderi, 2018;Mojoudi, Hamidian, Zhang, & Yang, 2019;Nekoei et al, 2009;Padashbarmchi, Hamidian, Zhang, et al, 2015;Veisi et al, 2010). There are still much to know about the detection, effects, and removal of antibiotics in terrestrial and especially aquatic environment.…”

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“…After this period, senescence and detachment from the plant roots could be observed. Several authors reported that heavy metals are not accumulated in the roots (Kumar et al, 2008;Mansouri et al, 2012;Rascio and Navari-Izzo, 2011); however, the floating aquatic macrophytes absorb most of the nutrients by the roots (Tundisi and Tundisi, 2008). This fact suggests that S. molesta biomass reduction begins in the root system caused by ion copper absorption.…”