Accumulation of orally administered cadmium by the eel (Anguilla anguilla)

Haesloop, Uwe; Schirmer, Michael

doi:10.1016/0045-6535(85)90016-5

Cited by 27 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Studies carried out on fish showed that Cd uptake from food was an important route of uptake (Haesloop and Schirmer 1985). During the experiments conducted here, fish were fed twice daily with artificial fish food.…”

Section: Resultsmentioning

confidence: 99%

Elimination of Cadmium from Cd-Contaminated Tilapia zilli in Media Containing EDTA and Freshwater: Changes in Protein Levels

Kargın

1996

Bulletin of Environmental Contamination and Toxicology

View full text Add to dashboard Cite

Cadmium is not an essential metal for aquatic organisms. It enters the aquatic environment through anthropogenic sources such as industry and agriculture. Kay et al. (1986) indicated that in the USA and Belgium 40-50 % of Salmo gairdneri contained 1-20 µg Cd/L. Various agents (EDTA, NTA and DTPA) are known to reduce metal accumulation in tissues of aquatic animals. Several authors indicated that these agents reduce metal accumulation in vertebrates and invertebrates (Muramoto 1980 ;O'Brien et al. 1990). Sunda et al. (1978) showed that EDTA and NTA reduced cadmium toxicity in aquatic organisms.The aim of this study was to investigate Cd elimination from the tissues of Cdcontaminated Tilapia zilli and changes in protein levels in the tissues after exposures to cadmium, EDTA and freshwater. MATERIALS AND METHODSTilapia zilli were obtained from pools and kept under laboratory conditions (25 ± 1°C) for two months. When used, the fish were of 9.65 ± 1.74 cm in mean length and 12.74 ± 2.34 g in mean weight.Experiments were carried out in 3 glass aquaria 40x100x40 cm in height. The first two aquaria were filled with 0.1 and 1.0 ppm Cd and the third one with tap water and was used as the control. Thirty fish were then added into each aquarium. After exposure to either 0.1 or 1.0 ppm Cd (CdCl 2 H 2 O) for 30 days, six fish were removed from the tanks to measure the tissue levels of cadmium and protein. The remaining Cd-contaminated fish were than kept in clean freshwater or freshwater containing EDTA (0.3 and 3.0 ppm) (Muramoto 1982) for 1.5 and 30 days. For each exposure period and concentration, six fish were analyzed to determine Cd and protein concentrations. The test media were changed every third day to replenish either the Cd or EDTA. All fish were fed an artificial food containing no cadmium. 211

show abstract

Section: Resultsmentioning

confidence: 99%

Elimination of Cadmium from Cd-Contaminated Tilapia zilli in Media Containing EDTA and Freshwater: Changes in Protein Levels

Kargın

1996

Bulletin of Environmental Contamination and Toxicology

View full text Add to dashboard Cite

show abstract

“…Dietary inorganic metals (such as cadmium) are often preferentially accumulated in the liver and kidney (Chowdhury et al 2005), and accumulation in muscle tissue is relatively low and requires long-term exposures compared with the other internal organs. Dietary cadmium whole body retention was in the range of <1-5% for rainbow trout and eel (Haesloop and Schirmer 1985;Harrison and Klaverkamp 1989;Handy 1992;Franklin et al 2005). In juvenile rainbow trout, muscle contributed 30% of whole body burden in control fi sh and 1% in fi sh fed feed highly contaminated with Cd (Handy 1992).…”

Section: Feed To Fi Sh Carry-over Of Pops In Farmed Fi Nfi Shmentioning

confidence: 97%

Contamination of finfish with persistent organic pollutants and metals

Berntssen¹,

Maage²,

Lundebye³

2012

Chemical Contaminants and Residues in Food

View full text Add to dashboard Cite

Acute toxicity of cadmium to Channa punctatus (BLOCH)

Gupta

Rajbanshi

1988

Acta hydrochim. hydrobiol.

View full text Add to dashboard Cite

Summary: Effects of acute cadmium poisoning on survival, its residual values and histopathology in certain organs of a freshwater airbreathing fish, Channa punctatzcs (BLOCH) were investigated. The threshold concentration, MATC and LCm values obtained from 96 h static bioassay, revealed that Channa is more susceptible to cadmium ions at higher temperature. The atomic absorption spectrophotometric determination of cadmium residues differed significantly in organs of specimens having survived and died after 96 h of exposure. The gill accumulate the highest amount of cadmium, the liver accumulated a slightly smaller amount than the gill, while the kidney accumulated the least.The histopathological lesions subjected to sublethal (5.2 mg/l Cd) and lethal (8.4 mg/l Cd) concentrations of cadmium were: detachment and rupture of lamellar epithelium, collapse of pillar cells and hypertrophy in mucus producing gland cells in the gill; tacuolization and coagulative necrosis in hepatic cells of the liver; and expansion, necrosis and accumulztion of cellular debris in renal tubules of the kidney. The probable causes for death of fish due to cadmium ions have been discussed.

show abstract

Accumulation of orally administered cadmium by the eel (Anguilla anguilla)

Cited by 27 publications

References 14 publications

Elimination of Cadmium from Cd-Contaminated Tilapia zilli in Media Containing EDTA and Freshwater: Changes in Protein Levels

Elimination of Cadmium from Cd-Contaminated Tilapia zilli in Media Containing EDTA and Freshwater: Changes in Protein Levels

Contamination of finfish with persistent organic pollutants and metals

Acute toxicity of cadmium to Channa punctatus (BLOCH)

Contact Info

Product

Resources

About