Accumulation and biological effects of cadmium in rainbow trout.

Kumada, Hrioshi; Kimura, Seiko; Yokote, Motoyoshi

doi:10.2331/suisan.46.97

Cited by 72 publications

(35 citation statements)

References 5 publications

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“…Silversides absorbed Cd with an efficiency (2.7%) within the ranges reported for rainbow trout (Salmo gairdneri) (0.5-5.4%; Kumada et al 1980) and guppies (Poecilia reticulata) (1.6-4.1%; Hatakeyama and Yasuno 1982). Low Cd absorption efficiencies in carnivorous fish are consistent with the observations of Macdonald and Sprague (1988), who found much lower Cd concentrations in arctic cod than in their prey, which included copepods.…”

Section: Resultssupporting

confidence: 79%

Retention of elements absorbed by juvenile fish (Menidia menidia, Menidia beryllina) from zooplankton prey

Reinfelder

Fisher

1994

Limnology & Oceanography

111

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Radiolabeled copepods (Acartia spp.) were fed to juvenile silversides (Menidia menidia and Menidia beryllina) to study element absorption in the fish. Copepods were reared from nauplii in the presence of different radiotracers (i*C, lo9Cd, 57Co, 32P, 35S, '?Se, or "'Zn) and were analyzed for relative concentrations of these elements in their tissue fractions. Copepod exoskeletons contained nearly all of the trace metals (>97%), 60% of the Se, and less than half of the C, P, and S accumulated by the copepods. Within the nonexoskeleton tissues of the copepods, nonpolar (CHCl, extractable) material contained 34 and 24% of the total C and P, but only 8 and 2% of the total S and Se Absorption efficiencies of trace metals in juvenile silversides (2.7% for Cd, 2.1% for Co, 6.2% for Zn) were an order of magnitude lower than those for nonmetals (29% for Se, 50% for S and C, 60% for P). The absorption efficiencies in the juvenile silversides of all seven elements studied were directly related to the percent of each element in the nonexoskeleton fraction of the copepod prey, indicating that the fish absorbed the soft tissues of the copepods and egested the chitinous exoskeleton and its associated elements.Although trace metal concentrations and concentration factors generally decrease from algae to fish in aquatic food webs, the accumulation of harmful levels of trace metals through the ingestion of contaminated food is still a threat to aquatic carnivores and the animals that consume them (Rainbow 1989). In carnivorous fish, trace metal accumulation ' Present address:

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Section: Resultssupporting

confidence: 79%

Retention of elements absorbed by juvenile fish (Menidia menidia, Menidia beryllina) from zooplankton prey

Reinfelder

Fisher

1994

Limnology & Oceanography

111

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“…22% by the juvenile striped bass (Fisher & Baines et al 2001), and 10 to 30% by the mudskipper and glassy fish (Ni et al 2000), but were higher than other measurements (e.g. 2.7% by the silversides: Reinfelder & Fisher 1994; and 0.5 to 5.4% by the rainbow trout: Kumada et al 1980). For Se, these results (32 to 63%) were somewhat higher than the previous measurements in silversides and striped bass (29 to 36%, Reinfelder & Fisher 1994, Fisher & Baines 2001, but the AEs of Se were highly dependent on the diets used.…”

Section: Discussionmentioning

confidence: 96%

Exposure and potential food chain transfer factor of Cd, Se and Zn in marine fish Lutjanus argentimaculatus

Xu¹,

Wang

2002

Mar. Ecol. Prog. Ser.

123

115

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Radiotracer techniques were employed to quantify the rates of uptake from aqueous and dietary sources, and rates of elimination of Cd, Se and Zn by a marine predatory fish, the mangrove snapper Lutjanus argentimaculatus. The relative significance of bioaccumulation of metals by fish from water and food and the food chain transfer factor were then assessed using a kinetic modeling approach. Cd and Zn in the aqueous phase exhibited an approximately linear uptake pattern over a 1 to 2 d exposure, whereas Se exhibited a 2-compartmental uptake at a low ambient concentration, with a slow initial uptake followed by a rapid increase in Se influx. Most of the accumulated aqueous Se and Zn were incorporated into the muscles, whereas Cd was evenly distributed in the viscera and the remaining tissue, with a lower proportion in the gills. The influx rates were dependent on the ambient metal concentration and were tissue-specific for each metal. The assimilation efficiency of trace metals in fish ingesting different prey (copepods, Artemia sp. and clam tissue) ranged from 6 to 24% for Cd, 32 to 68% for Se and 15 to 46% for Zn, and decreased with an increase in ingestion rate. The efflux rate constant of Cd in fish following uptake from the dietary phase (0.047 d -1 ) was higher than that following aqueous uptake (0.025 d -1 ), whereas the efflux rate constants of Se and Zn were comparable between these 2 exposure pathways. Our modeling calculations indicate that dietary uptake of Cd and Zn dominates their accumulation in fish when zooplankton are the main prey, whereas aqueous uptake may be the dominant pathway when planktivorous fish are the dominant prey for the predatory fish. Dietary uptake always dominates Se accumulation in these fish. The modeling results also indicated that the food chain transfer factor of Cd was < 0.5 in the fish regardless of the ingestion rate and the assimilation efficiency, consistent with the results of field studies. However, Se and Zn may potentially be biomagnified when the ingestion rate and assimilation efficiency are at the high end of the range possibly encountered by the predatory fish. KEY WORDS: Metals · Mangrove snapper · Exposure · Food chain · Uptake Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 238: [173][174][175][176][177][178][179][180][181][182][183][184][185][186] 2002 2001). Organ specificity in metal accumulation may also be related to the metal speciation and the regulation of essential and non-essential metals (Hanson 1997, Baskin 2000, McGeer et al. 2000, Burgos & Rainbow 2001. Although most studies have quantified the metal concentrations in fish collected from the field, where they are exposed to metals both in the aqueous and in the dietary phases, it is difficult to quantitatively distinguish the metal uptake via food or water. Such information is useful for modeling metal transport within marine food chains and the interaction between fish and their environments.Recently, the kinetic modeling approach ha...

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“…They suggested that cadmium caused a reduction in erithropoeisis and impeded the formation of red blood cells. Again the accumulation of cadmium in various organs particularly the kidney and liver has been observed [21][22][23] and it is conceivable that the activity of these hematopoietic tissues may be suppressed or compromised. However, it cannot be ruled out that a decline in hemoglobin and hematocrit in the toad, Bufo maculatus could be due to a decrease in the synthesis or release of erythrocytes into the circulation or an increase in the rate of erythrocyte destruction.…”

Section: Discussionmentioning

confidence: 99%

Haematological changes in Bufo maculatus treated with sublethal concentrations of Cadmium

Ezemonye

Enuneku

2011

J Xenobiotics

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Accumulation and biological effects of cadmium in rainbow trout.

Cited by 72 publications

References 5 publications

Retention of elements absorbed by juvenile fish (Menidia menidia, Menidia beryllina) from zooplankton prey

Retention of elements absorbed by juvenile fish (Menidia menidia, Menidia beryllina) from zooplankton prey

Exposure and potential food chain transfer factor of Cd, Se and Zn in marine fish Lutjanus argentimaculatus

Haematological changes in Bufo maculatus treated with sublethal concentrations of Cadmium

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