RADIOCESIUM IN BROWN TROUT (SALMO-TRUTTA) FROM A SUB-ALPINE LAKE ECOSYSTEM AFTER THE CHERNOBYL REACTOR ACCIDENT

被引：27

作者：

BRITTAIN, JE

STORRUSTE, A

LARSEN, E

机构：

[1] Freshwater Ecology and Inland Fisheries Laboratory, University of Oslo, 0562 Oslo 5

[2] Division of Occupational Health and the Working Environment, University of Oslo, Blindern

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 1991年 / 14卷 / 03期

关键词：

D O I：

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

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

After Chernobyl in April 1986, radioactive cesium has been measured in Ovre Heimdalsvatn, a Norwegian subalpine lake, situated in an area of high fallout. The lake is an important reference site and has been the subject of extensive ecosystem studies since the 1950s. Emphasis has been given to measuring long-term trends in the activity content of radioactive cesium in the brown trout (Salmo trutta) population. After ice-break in June 1986, the average total cesium activity content rose to 7000 Bq/kg wet weight. The activity content fell during 1987 and at ice-break in 1988 was 4000 Bq/kg. However, there was no further reduction during the summers of 1988 and 1989, possibly due to increased inputs from the catchment. There is considerable variation in the radiocesium activity content measured in individual fish. On the basis of the changes in cesium activity content in trout since 1986, an observed half-life for Cs-137 and Cs-134 in trout of 3.0 and 1.3 years, respectively, has been estimated.

引用

页码：181 / 191

页数：11

共 21 条

[1]

Blakar, Cs-134 & 137 i sedimentprøver fra Høysjóen., Radioøkologisk Forskningsprogram—resultater fra undersøkelsene i 1987, pp. 15-21, (1988)

[2]

Elliott, Some methods for the statistical analysis of samples of benthic invertebrates, Sci. Publs Freshwat. Biol. Assoc., 25, (1977)

[3]

Hasanen, Kolehmainen, Miettinen, Biological half-times of 137Cs and 22Na in different fish species and their temperature dependence, Proc. 1st Int. Congr. Radiat. Prot., pp. 401-406, (1967)

[4]

Haugen, Transportmekanismer og plantetilgjengelighet av radionuklider i ulike jordtyper, Forskningsprogram om Radioaktivt Nedfall, pp. 65-74, (1988)

[5]

Henriksen, Ingebretsen, Storruste, Stranden, Radioaktivitet, Stråling, Helse, (1987)

[6]

Hesslein, Broecker, Fate of metal radiotracers added to a whole lake sediment-water interactions, Canadian Journal of Fisheries and Aquatic Sciences, 37, pp. 378-386, (1980)

[7]

Hewett, Jefferies, The accumulation of radioactive cesium from water by the brown trout (Salmo trutta) and its comparison with plaice and rays, J. Fish. Biol., 9, pp. 479-489, (1976)

[8]

Jensen, On the dynamics and exploitation of the population of brown trout, Salmo trutta L. in lake Øvre Heimdalsvatn, Southern Norway, Rep. Inst. Freshwat. Res. Drottningholm., 56, pp. 18-69, (1977)

[9]

Kolehmainen, Hasanen, Miettinen, 137Cs in the plants, plankton and fish of the Finnish lakes and factors affecting its accumulation, Proc. 1st Int. Congr. Radiat. Prot., pp. 407-415, (1967)

[10]

Larsson, Brittain, Lien, Lillehammer, Tangen, The lake ecosystem of Øvre Heimdalsvatn, Holarct Ecol., 1, pp. 304-320, (1978)

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