Significant year-to-year variation of the response to radiation-induced stress shown by gill fatty acid metabolism in eels (Anguilla anguilla) captured from the wild.
1. In eels captured in Roskilde Fjord in 1972 and 1975, a specifically enhanced synthesis was found from 14C-acetate of 14C-labelled mono-unsaturated fatty acids (C16:1 and C18:1) relative to saturated fatty acids (C16:0 and C18:0) in sea water 4 days after irradiation (10 Gy, 60Co). 2. Corresponding experiments in 1976 and 1982 showed rather the opposite: irradiation resulted in more 14C-labelled saturated fatty acids relative to unsaturated fatty acids, both in fresh and sea water. 3. The latter effect was less marked than that in 1972 and 1975, but still statistically clearly significant.
Ecology Division, Risø National Laboratory, Roskilde, Denmark.
H J
HJ
Hansen
D000085:Acetates / Q000378:metabolism; D000811:Anguilla / Q000378:metabolism*; D000818:Animals; D000835:Animals, Wild / Q000378:metabolism*; D003037:Cobalt Radioisotopes / Q000009:adverse effects; D005227:Fatty Acids / Q000378:metabolism*; D005393:Fish Diseases / Q000378:metabolism; D005618:Fresh Water; D005880:Gills / Q000378:metabolism / Q000528:radiation effects*; D010507:Periodicity; D011832:Radiation Injuries / Q000378:metabolism / Q000662:veterinary; D012623:Seawater; D013312:Stress, Physiological / Q000378:metabolism / Q000662:veterinary
D000085:Acetates; D003037:Cobalt Radioisotopes; D005227:Fatty Acids