Mercury, cadmium and lead in eels and roach: The effects of size, season and locality on metal concentrations in flesh and liver

Barak, Nir; Mason, C. F.

doi:10.1016/0048-9697(90)90334-q

Cited by 82 publications

(36 citation statements)

References 11 publications

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“…Pb accumulation in the studied organs was in the following order: muscle < gills < liver < kidneys for the three studied fish. The present results agree with the results of Barak and Mason (1990), Ghazaly et al (1992). Gomaa et al (1995) and Khallaf et ai (1998).…”

Section: Discussionsupporting

confidence: 83%

Distribution of Some Heavy Metals in Tissues of Oreochrom1s Siloticus* Tilap1a Zjll11 and Clarias Lazera From Abu Za'baal Lakes and Their Impacts on Some Biochemical Parameters and on the Histological Structures of Some Organs

Zahran

Gad

2005

Egypt. J. of Aquatic Biolo. and Fish.

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A bu Za'baal Lakes are man-made lakes, formed by the fracture apd extract of rocks. The lakes, as other inland closed basins. receive their water from the ground and seepage waters. They consist of three lakes and another filling-phase lake. In the present study, the concentrations of some heavy metals {Fe. Zn. Mn. Pb. Cu and Cd) in water and organs (muscles, gills, liver and kidney) of O. niloticus. T, zillii and C. iazera collected from Abu Za'baai Lakes were measured during winter. 2004. The effects of the tested metals on the total protein and total lipid contents in the muscle and liver and on the histological structures of the gills. liver and kidneys of fish were studied.The present results showed that the levels of Fe. Zn. Mn. Pb. Cu and Cd in the water of Abu Za'baal lakes ranged between 3.22-6.0L 0.21-1.50. 0.67-1.64. 0.62-1.67. 0.13-0.20 and 0.03-0.06 mc/L respectively. The highest \ allies of metals were reported in the third lake, while their lowest values were in the first one.It was found that the metals were accumulated in different organs of the studied fish b> various levels. The concentration of the tested metals in different organs of (I niloticus and T zillii followed a sequence of: Fe. /n. Mn. Pb and Cd in muscles < gills < liver < kidnevs. however. Cu in muscles • uills < kidnevs < liver for (). nilolicus and in gills ■■ muscles ■ kidneys < liver for T. zillii. On the other hand, in C lazcra. Fe and Cu were in muscles < gills < kidneys < liver. Zn. Pb and Cd in muscles •' gills < liver --' kidneys and Mn in muscles < li\er -kidne\> gills. In general, the concentrations ol

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Section: Discussionsupporting

confidence: 83%

Distribution of Some Heavy Metals in Tissues of Oreochrom1s Siloticus* Tilap1a Zjll11 and Clarias Lazera From Abu Za'baal Lakes and Their Impacts on Some Biochemical Parameters and on the Histological Structures of Some Organs

Zahran

Gad

2005

Egypt. J. of Aquatic Biolo. and Fish.

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“…The lead content found in the liver of tench and in the intestinal wall of turbot (Sopot) increased with the weight of the ®sh host. A similar correlation (Pearson) between the host length and the liver lead concentration has been reported from eels and roach by Barak and Mason (1990b). Associations were also found between the lead and cadmium contents measured in the livers of tench and in turbot from Sopot.…”

Section: Discussionsupporting

confidence: 62%

Lead and cadmium content of two cestodes, Monobothrium wageneri and Bothriocephalus scorpii , and their fish hosts

Sures

Taraschewski

Rokicki

1997

Parasitology Research

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The adult cestodes Monobothrium wageneri and Bothriocephalus scorpii from the intestines of their respective final hosts, tench (Tinca tinca) caught in the river Ruhr, Germany, and turbot (Scophthalmus maximus) collected from two sampling sites on the coast of Gdansk, Poland, were analyzed for lead and cadmium by atomic absorption spectrometry. Both cestode species contained significantly higher cadmium contents than did the muscle, liver, and intestine of their fish hosts. Whereas M. wageneri also contained several times more lead than did the organs of tench, B. scorpii showed nearly the same lead burden as did the liver and intestine of turbot. Posterior sections of B. scorpii comprising gravid proglottids contained significantly higher concentrations of lead and cadmium than did the anterior proglottids.

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“…The mercury values measured in the present study while often exceeding the 20 µg/kg biota EQS, are much lower than they have been 20 or 30 years ago in England when average levels around 100 µg/kg were common in many species and individual fish often exceeded the food safety standards of 1000 µg/kg for eel and 500 µg/kg for other fish (Barak and Mason, 1990a;Barak and Mason, 1990b;Barak and Mason, 1990c). The mercury concentrations in the current study were almost a factor 10 lower than those found in Germany in 8 (Yamaguchi et al, 2003) and from East Anglia (UK), where the average muscle Hg concentration in 1996 was about 27 µg/kg in roach (average weight about 110 g) (Downs et al, 1999).…”

Section: Discusssionmentioning

confidence: 74%

The presence of EU priority substances mercury, hexachlorobenzene, hexachlorobutadiene and PBDEs in wild fish from four English rivers

Jürgens

Johnson

Jones

et al. 2013

Science of The Total Environment

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J. 2013. The presence of EU priority substances mercury, hexachlorobenzene, hexachlorobutadiene and PBDEs in wild fish from four English rivers.Contact CEH NORA team at noraceh@ceh.ac.ukThe NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner.-1 - AbstractSince 2007 about 200 to 300 fish per year (generally roach (rutilus rutilus) but also a few bleak (alburnus alburnus) and eels (anguilla anguilla)) have been collected from a number of English river sites and stored at -80°C to build up a Fish Tissue Archive as a resource for the monitoring of pollutants. Some of the fish from the Fish Tissue Archive from the years 2007-2011 were analyzed for substances in current and proposed European legislation regarding environmental quality standards (EQS) in biota. It was found that mercury exceeded the EU EQS of 20 µg/kg in 79 % of samples with an average and median of 31 and 29 µg/kg. The legacy fungicide hexachlorobenzene (HCB) was below the EQS of 10 µg/kg in all fish analyzed, with a maximum of 6 µg/kg in some eels. The legacy solvent hexachlorobutadiene (HCBD) was below the EQS of 55 µg/kg, being < 0.2 µg/kg in all samples where it was measured. The sums of six polybrominated diphenyl ethers (PBDEs) were several orders of magnitude higher than the new proposed 0.0085 µg/kg biota EQS. This study showed that the regular collection and analysis of whole body homogenate samples of relatively small native pelagic fish is suitable for the monitoring of contaminants capable of bioaccumulation. With regard to current or proposed EQS for EU countries, mercury and potentially PBDE in fish are of some concern in these English rivers.-2 - KeywordsEnvironmental quality standards UK fish mercury PBDE hexachlorobenzene priority substances rivers 1 Background and introduction LegislationThe Priority Substances Directive of the EU (Directive 2008/105/EC), which entered into force in January 2009, has the objective of protecting wildlife and humans from harmful effects of chemicals identified as priority substances in surface waters and to monitor trends of these chemicals. It aims to set environmental quality standards (EQS) for a number of chemical pollutants below which no harmful effects are expected to wildlife, or humans. There is an option for member states to set biota, or sediment, standards which offer "at least the same level of protection" as the water standards. For mercury, hexachlorobenzene (HCB) and hexachlorobutadiene (HCBD), the legislation states that water standards alone do not offer sufficient protection and therefore limits have been set for both water and biota and the legislation specifies that member states which choose not to apply the biota standard should set more stringent levels than those set out in the directive for the water standard. The EQS is set for prey tissue (wet weight) with member states being able to choose "the most appropriate indicator from among...

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Mercury, cadmium and lead in eels and roach: The effects of size, season and locality on metal concentrations in flesh and liver

Cited by 82 publications

References 11 publications

Distribution of Some Heavy Metals in Tissues of Oreochrom1s Siloticus* Tilap1a Zjll11 and Clarias Lazera From Abu Za'baal Lakes and Their Impacts on Some Biochemical Parameters and on the Histological Structures of Some Organs

Distribution of Some Heavy Metals in Tissues of Oreochrom1s Siloticus* Tilap1a Zjll11 and Clarias Lazera From Abu Za'baal Lakes and Their Impacts on Some Biochemical Parameters and on the Histological Structures of Some Organs

Lead and cadmium content of two cestodes, Monobothrium wageneri and Bothriocephalus scorpii , and their fish hosts

The presence of EU priority substances mercury, hexachlorobenzene, hexachlorobutadiene and PBDEs in wild fish from four English rivers

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