Metal accumulation and metallothionein in brown trout, Salmo trutta, from two Norwegian rivers differently contaminated with Cd, Cu and Zn

Olsvik, Pål A.; Gundersen, Pål; Andersen, Reidar; Zachariassen, Karl Erik

doi:10.1016/s1532-0456(00)00191-5

Cited by 30 publications

(20 citation statements)

References 24 publications

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“…These metals are bioaccumulated in the liver for detoxication. There is a risk of metallothionein synthesis in the fish body, which can cause another increase of these metals concentration in fish body as Hogstrand et al (1991) describe in perch, Olsvik et al (2001) in brown trout in Norwegian rivers and Linde et al (1999 and in brown trout in Spain. As our ichthyological research in the Louãka River shows, the occurrence of individuals older than 3 years is rare, and the analyzed fish were purely in the age of 2+ and 3+ (Table 3).…”

Section: Resultsmentioning

confidence: 99%

Heavy Metal Contamination of the Loučka River Water Ecosystem

et al. 2007

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Vítek T., P. Spurn˘, J. Mare‰, A. Ziková: Heavy Metal Contamination of the Louãka River Water Ecosystem. Acta Vet Brno 2007, 76:149-154. Heavy metal contamination of the Louãka River water ecosystem was assessed in July 2005. We analyzed concentrations of T-Hg (total mercury), Cd, Pb, Cr, Cu, Zn, and Ni in water, sediments, zoobenthos, and in the brown trout (Salmo trutta m. fario) muscle and liver tissues (a total of 28 individuals) at four sampling sites. The highest Pb and Ni concentrations (4.634 -12.050 and 0.689 -24.980 mg·kg -1 ) were found in sediments. The zoobenthos was most contaminated by Zn and Cu (0.556 -1.505 and 2.925 -74.300 mg·kg -1 ). The heavy metal contamination of river water was highest in Ni and Cr (0.1 -6.8 and 0.5 -10.0 mg·l -1 ). Concentrations of heavy metals in the brown trout muscle were following (in mg·kg -1 ): Pb 0.108 ± 0.073 -1.010 ± 0.506, Cd 0.003 ± 0.002 -0.026 ± 0.022, Zn 3.956 ± 0.371 -5.801 ± 1.718, Ni 0.058 ± 0.018 -0.102 ± 0.046, Cr 0.028 ± 0.005 -0.073 ± 0.039, Cu 0.329 ± 0.079 -0.437 ± 0.064 and Hg 0.065 ± 0.008 -0.106 ± 0.047. Statistical differences (P < 0.05) in the brown trout muscle were in Pb and Zn. Cd, Cu and Zn were markedly accumulated in the brown trout liver (concentrations 0.107 ± 0.066 -0.223 ± 0.078, 59.973 ± 38.951 -145.800 ± 48.286 and 30.671 ± 3.574 -34.274 ± 7.226 mg·kg -1 ). Humans of 60 kg body mass may consume 1.5 kg of brown trout muscle from the Louãka River weekly without any risk. Adverse influence of the Uniglas distillery on the Louãka River environment contamination by heavy metals was not confirmed.

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Section: Resultsmentioning

confidence: 99%

Heavy Metal Contamination of the Loučka River Water Ecosystem

et al. 2007

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“…On the other hand, the stomach has a key role in basic metabolism and is the major site of accumulation, biotransformation and excretion of contaminants in fish (Pawert et al, 1998). It is well known that a large amount of metallothionein induction, caused by contamination, occurs in stomach tissues of fish (Olsvik et al, 2000). In contrast, the muscle tissues are not considered an active site for metal accumulation (Romeo et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

Concentration of Zn, Cu and Pb in Some Selected Marine Fishes of the Pahang Coastal Waters, Malaysia

Kamaruzzaman¹

2010

American Journal of Applied Sciences

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Problem statement: Heavy metals constitute one of the most hazardous substances that could be accumulated in biota. Fish populations exploited by man often live in coastal area environments that contain high levels of heavy metals, coming from human activities such as industrial and agricultural wastes. A problem to deal when using fishes as biomonitors of heavy metals is the relationship existing between metal concentration and several intrinsic factors of the fish such as organism size, genetic composition and age of fish. The estimated values of all metals in muscles of fish in this study were below the established values. Therefore, it can be concluded that the fish from Pahang coastal water are comparatively clean and do not constitute a risk for human health.

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“…Notably, differential regulation of metallothionein by various metals has been revealed in many other fish species (Cho et al, 2005). Besides, the reason for metal-specific potential for MTs induction could generally been interpreted by the different availability of each metal ion in each organism or cell type (Kock et al, 1995;Olsvik et al, 2001). …”

Section: The Influence Of Some Heavy Metals On Aquatic Vertebratementioning

confidence: 99%

Characteristics, functions, and applications of metallothionein in aquatic vertebrates

Weichao

Mao

et al. 2014

Front. Mar. Sci.

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The documents on Metallothioneins (MTs) in aquatic creatures, especially focusing on their function as biomarkers in environmental monitoring programmes, are vast and increasing. There are, however, few papers to summary the physiological role of MTs in aquatic organisms especially on development. The multifaceted roles of MTs include involvement in homeostasis, protection against heavy metals and oxidant damages, and metabolic regulation, sequestration and/or redox control. In this paper, we have collected published information on MTs in aquatic organisms-pisces, amphibians, mammals, etc., and analyzed their function in these aquatic animals. MTs have four main functions in aquatic vertebrate. They are respectively bioaccumulation of toxic metals and detoxification, homeostatic regulation of metals, protection against oxidative stress and neuroprotective mechanism. MTs separate in different tissues and they have various distributions in different tissues of aquatic vertebrate, including liver, gills, kidney, testes, and brain. MTs can be induced by a variety of environmental and physiological factors, among which, heavy metals are the main kind of MTs inducers in aquatic vertebrate. Here we pay more attention on the essential metals copper (Cu) and zinc (Zn) and the non-essential metals cadmium (Cd), silver (Ag), lead (Pb), and mercury (Hg).

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Metal accumulation and metallothionein in brown trout, Salmo trutta, from two Norwegian rivers differently contaminated with Cd, Cu and Zn

Cited by 30 publications

References 24 publications

Heavy Metal Contamination of the Loučka River Water Ecosystem

Heavy Metal Contamination of the Loučka River Water Ecosystem

Concentration of Zn, Cu and Pb in Some Selected Marine Fishes of the Pahang Coastal Waters, Malaysia

Characteristics, functions, and applications of metallothionein in aquatic vertebrates

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