The accumulation of 137‐caesium from fresh water by alevins and fry of Atlantic salmon and brown trout

Journal of Fish Biology - Tập 43 Số 6 - Trang 877-888 - 1993
Ian J. Morgan1, P. Tytler1, Michael V. Bell2
1Department of Biological and Molecular Sciences, School of Natural Sciences, University of Stirling, Stirling, FK9 4LA Scotland, U.K.
2NERC Unit of Aquatic Biochemistry, School of Natural Sciences, University of Stirling, Stirling, FK9 4LA, Scotland, U.K.

Tóm tắt

The accumulation of 137‐caesium from water by alevins and fry of Atlantic salmon and brown trout was studied, At ‘normal’ pH (∼7.4), input rates (kWF) and equilibrium concentration factors (CFeq) of 137‐caesium were four to five times greater in both species of alevins than those in the fry. Input rates and equilibrium concentration factors were consistently greater in brown trout than in Atlantic salmon. The input rate of 137‐caesium was most rapid in kidney, gill and gut of fry. The majority of the radiocaesium was, however, deposited in muscle tissue which had consistently the longest biological half‐life of 50–90 days. 137‐Caesium input was significantly reduced at low pH (∼5.0) but output rates (kFW) were little affected. It is concluded that juvenile fish are more susceptible than adults to radiocaesium accumulation from freshwater but that food is the major source of 137‐caesium in freshwater fish. The behaviour of 137‐caesium is discussed with respect to potassium.

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Tài liệu tham khảo

10.1016/S1546-5098(08)60200-9

10.1016/0043-1354(78)90034-9

10.1242/jeb.37.1.129

Baptist J. P., 1962, Accumulation and retention of cesium‐137 by marine fishes, Fishery Bulletin of the Fish and Wildlife Service, 62, 117

10.1113/jphysiol.1973.sp010068

10.1085/jgp.60.5.588

10.1139/z82-156

10.1139/f88-186

10.1113/jphysiol.1984.sp015070

10.1016/0265-931X(91)90027-D

Camplin W. C, 1986, Radioactivity in surface and coastal waters of the British Isles. Monitoring of fallout from the Chernobyl Reactor Accident, MAFF Directorate of Fisheries Research, Aquatic Environment Monitoring Report, 15, 49

Clark M. J., 1986, A Compilation of Early Papers by Members of NRPB Staff about the Reactor Accident at Chernobyl on 26th April 1986. National Radiological Protection Board Report MBq

Davis J. J., 1963, Radioecology, Proceedings of the First National Symposium on Radioecology, 539

10.1038/321192a0

10.1016/0300-9629(91)90139-4

Hannerz L., 1968, The role of feeding habits in the accumulation of fallout 137Cs in fish, Report of the Institute of Freshwater Research, Drottingholm, 48, 112

Häsänen E., 1966, Radioecological Concentration Processes, 921

10.1111/j.1095-8649.1976.tb04697.x

10.1111/j.1095-8649.1978.tb03422.x

10.1085/jgp.61.6.669

10.1017/S002531540003188X

10.2331/suisan.50.481

10.2307/1934932

10.1097/00004032-197209000-00004

10.1139/f87-177

10.1007/BF01870671

McDonald D. G., 1983, The interaction of environmental calcium and low pH on the physiology of the rainbow trout, Salmo gairdneri. I. Branchial and renal net ion and H+ fluxes, Journal of Experimental Biology, 102, 123, 10.1242/jeb.102.1.123

10.1016/0043-1354(91)90080-A

McWilliams P. G., 1980, Effects of pH on sodium uptake in Norwegian brown trout Salmo trutta, Journal of Experimental Biology, 88, 269, 10.1242/jeb.88.1.259

10.1017/S0025315400024772

10.1097/00004032-196512000-00027

10.1016/0022-0981(73)90034-8

10.1016/0022-0981(76)90075-7

10.1577/1548-8659(1986)115<220:GAMICB>2.0.CO;2

10.1016/0043-1354(67)90025-5

10.1139/z84-207

10.1038/322690a0

Talbot C., 1982, Osmoregulation in salmon and sea‐trout alevins, Journal of Experimental Biology, 101, 61, 10.1242/jeb.101.1.61

10.1097/00004032-197210000-00009

10.2307/1933295

Wood C. M., 1988, Acid Toxicity and Aquatic Animals, 125

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Journal of Fish Biology

Tập 43 Số 6

877-888

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