THE METABOLISM OF RADIONUCLIDES BY MARINE ORGANISMS. II. THE UPTAKE, ACCUMULATION, AND LOSS OF YTTRIUM91BY MARINE FISH, AND THE IMPORTANCE OF SHORT-LIVED RADIONUCLIDES IN THE SEA

Autor:	Sidney J. Townsley, Howard Boroughs, Robert W. Hiatt
Rok vydání:	1956
Předmět:	Gill Radionuclide food.ingredient Ecology Short lived radionuclides Marine fish Biota Tilapia Aquatic animal Metabolism Biology food Animal science General Agricultural and Biological Sciences
Zdroj:	The Biological Bulletin. 111:352-357
ISSN:	1939-8697 0006-3185
DOI:	10.2307/1539141
Popis:	Only about 2 per cent of an ingested dose of yttrium91 was left in Tilapia mossambica after two days. This is much less than the amount of strontium retained by Tilapia in similar experiments. About 40 per cent of the radioisotope remaining is found in the visceral organs, but the muscles retain about 30 per cent after 14 days. The skeleton retained less than 20 per cent, the integument about 10 per cent, and the gills 5 per cent. These findings are in marked contrast with those obtained with strontium89 in similar experiments. Attention is focused on the fact that yttrium91 may have little direct effect on man compared with the possible effects of Sr90, but the retention of this and other short-lived fission products in marine organisms having a brief life span may possibly affect the biota, and thus affect man indirectly.
Databáze:	OpenAIRE
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