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Abstract

Crude oil and light or heavy oils as well as the detergent ABS in concentrations of 5 and 50 ppm partially inactivate arylsulphatases in Euphausia superba and E. crystallorophias. After one hour exposure to detergent solutions the arylsulphatase activity in experimental animals transitorily increased. The arylsulphatase activity proved to be affected also in krill homogenates. The change of temperature, of the krill incubation in solution of crude oil or detergent, from — 1°С to + 1°C did not influence the enzyme activity. The damage of lysosomal membranes, by oils and the detergent, has been confirmed by the fact of enhanced penetration of Trypan blue into krill tissues.

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Authors and Affiliations

Gerard Drewa

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