EFFECTS OF SELECTED LIMNOLOGICAL FACTORS ON THE ACCUMULATION OF $sup 137$Cs FALLOUT BY LARGEMOUTH BASS (MICROPTERUS SALMOIDES).

Kevern, N. R.; Spigarelli, S.A.

doi:10.2172/4719634

Cited by 3 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A wide range of studies has shown that the ionic compssition of the water is a key factor affecting 1 3 7~s accumulation with the greatest accumulation observed in waters with low concentrations of both potassium (K') and those ions which collectively contribute to conductivity and total hardness (Bryan 1963;Davis 1963; Kevern and Spigarelli 1971;Vanderplong et al 1975;Poston and Klopfer 1988;H&kanson et al 1992).…”

mentioning

confidence: 99%

Effects of water chemistry and temperature on radiocesium dynamics in rainbow trout,Oncorhynchus mykiss

Cocchio¹,

Beamish²,

Rodgers³

1995

Can. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

We determined the effects of temperature ($ and 16°C) and water concentrations of potassium (0.01-3.4 mmolK), sodium (0.4-3.0 mmol/L), and calcium (8.3-2.9 mmol/L) on the dynamics of ' 3 7~s in rainbow trout (Oncorhyrechles mykiss). Trout were fed food labelled with 1 3 7~s , and " 3 7~s retention was monitored by whole body gamma counting (70 d). Assimilation of " 7~s did not vary significantly over the range of concentrations of Kt, ~a ' , and Ca2' employed, with an average value of 65 & 3% (meankSE). The elimination of 1 3 7~s was significantly affected by K', with the elimination rate constant of trout held at the highest K' concentration (0.021 k 0.801 d-' at K+ of 3.4 mmol/L) roughly double that observed in trout at lower R + (0.011 f 0.001 d-' at Kf 2 0.3 mmo1K). Elimination of 1 3 7~s was also significantly affected by temperature, with the increase in elimination rate over the range of 8 and 16°C corresponding to a Q,, of ~1 . 7 . Although the effect of K+ on accumulation of ' 3 7~s in trout was statistically significant, this effect, by itself, can explain only a small fraction of the broad range of ' 3 7~s concentration ratios reported for wild fish.RCsumC : Nous avons mesure les effets de la temperature (8 et 16°C) et des concentrations dans l'eau du potassium (0,01-3,4 mmolBL), du sodium (0,4-3,0 m o K ) et du calcium (0,3-2,9 m o U L ) sur la dynamique du 1 3 7~s chez la truite arc-en-ciel (Owsrhynchus mykiss). Nous avons nourri les truites avec des aliments marquks au ' 3 7~s et mesure la retention de cet Clement par comptage des radiations gamma sur l'ensemble du corps (70 d). L'assirnilation du 1 3 7~s ne variait pas de fagon significative dans la plage des concentrations de KT9 ~a + et Ca" employkes, la valeur moyenrse se situant ii 65 2 3% (moyenne 2 ET). Lklimination du ' 3 7~s etait affectee de facon significative par K ' , la constante du taux d'elimination chez les truites maintenues ii la plus forte concentration de #+ (0,021 f 0,001 d-', M+ de 3,4 mmolk) Ctant grossitrement le double de celle qui a Ctt5 observee chez des trnites ii des concentrations plus faibles de K + (0,011 -t 0,001 d-I, K+ 5 0,3 mmol/L). L'tlimination du ' 3 7~s etait aussi affectbe de fagon significative par la temperature, l'accroissement du taux d9$limination sur la plage de 8-16°C correspondant B un Q,, de =1,4. Bien que l'effet de K+ sur l'accumulation du 137Cs chez les truites ait Ct6 statistiquement significatif, cet effet, en lui-meme, ne peut expliquer qu9une petite fraction de la large plage de concentrations de '"CS signalees pour les poissons sauvages.[Iiaduit par la Redaction] MntreductionCesium-1 37 ( L 3 7~s ) is of particular concern among the radionuclides released to the aquatic environment by nuclear operations and weapons testing, because of its high yield in uramium-235 fission, its relatively long half-life ((30 years), and its tendency to accumuhk in aquatic biota (Vmderplong et aB. 1975;

show abstract

mentioning

confidence: 99%

Effects of water chemistry and temperature on radiocesium dynamics in rainbow trout,Oncorhynchus mykiss

Cocchio¹,

Beamish²,

Rodgers³

1995

Can. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

show abstract

Environmental Protection: Transfer Parameters for Reference Animals and Plants

Strand¹,

Beresford²,

Copplestone³

et al. 2009

Ann ICRP

View full text Add to dashboard Cite

In Publication 103 (ICRP, 2007), the Commission included a section on the protection of the environment, and indicated that it would be further developing its approach to this difficult subject by way of a set of Reference Animals and Plants (RAPs) as the basis for relating exposure to dose, and dose to radiation effects, for different types of animals and plants. Subsequently, a set of 12 RAPs has been described in some detail (ICRP, 2008), particularly with regard to estimation of the doses received by them, at a whole-body level, in relation to internal and external radionuclide concentrations; and what is known about the effects of radiation on such types of animals and plants. A set of dose conversion factors for all of the RAPs has been derived, and the resultant dose rates can be compared with evaluations of the effects of dose rates using derived consideration reference levels (DCRLs). Each DCRL constitutes a band of dose rates for each RAP within which there is likely to be some chance of the occurrence of deleterious effects. Site-specific data on Representative Organisms (i.e. organisms of specific interest for an assessment) can then be compared with such values and used as a basis for decision making. It is intended that the Commission's approach to protection of the environment be applied to all exposure situations. In some situations, the relevant radionuclide concentrations can be measured directly, but this is not always possible or feasible. In such cases, modelling techniques are used to estimate the radionuclide concentrations. This report is an initial step in addressing the needs of such modelling techniques. After briefly reviewing the basic factors relating to the accumulation of radionuclides by different types of biota, in different habitats, and at different stages in the life cycle, this report focuses on the approaches used to model the transfer of radionuclides through the environment. It concludes that equilibrium concentration ratios (CRs) are most commonly used to model such transfers, and that they currently offer the most comprehensive data coverage. The report also reviews the methods used to derive CRs, and describes a means of summarising statistical information from empirical data sets. Emphasis has been placed on using data from field studies, although some data from laboratory experiments have been included for some RAPs. There are, inevitably, many data gaps for each RAP, and other data have been used to help fill these gaps. CRs specific to each RAP were extracted from a larger database, structured in terms of generic wildlife groups. In cases where data were lacking, values from taxonomically-related organisms were used to derive suitable surrogate values. The full set of rules which have been applied for filling gaps in RAP-specific CRs is described. Statistical summaries of the data sets are provided, and CR values for 39 elements and 12 RAP combinations are given. The data coverage, reliance on derived values, and applicability of the CR approach for each of the RAPs...

show abstract

Caesium-137 excretion and bioenergetic processes in Cyprinus carpio L. acclimatized to different potassium concentrations in water

Романенко

Nasvit

Solomatina

et al. 1997

Freshwater and Estuarine Radioecology, Proceedings of an International Seminar

View full text Add to dashboard Cite

EFFECTS OF SELECTED LIMNOLOGICAL FACTORS ON THE ACCUMULATION OF $sup 137$Cs FALLOUT BY LARGEMOUTH BASS (MICROPTERUS SALMOIDES).

Cited by 3 publications

References 11 publications

Effects of water chemistry and temperature on radiocesium dynamics in rainbow trout,Oncorhynchus mykiss

Effects of water chemistry and temperature on radiocesium dynamics in rainbow trout,Oncorhynchus mykiss

Environmental Protection: Transfer Parameters for Reference Animals and Plants

Caesium-137 excretion and bioenergetic processes in Cyprinus carpio L. acclimatized to different potassium concentrations in water

Contact Info

Product

Resources

About