ISSN:
1432-0703
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Medicine
Notes:
Abstract Marine snails (Murex trunculus) from the Adriatic Sea were exposed to cadmium in the laboratory under chronic (0.05 mg·L−1) and acute 5 mg·L−1) conditions. More than 5 mg·L−1 cadmium were required to lethally damageMurex trunculus during an exposure of 96 hr. Compared with untreated animals, chronic exposure ofMurex trunculus to 0.05 mg Cd·L−1 results in an elevated rate of oxygen consumption. The difference between the two groups of snails increases with time. After one month, a 10% greater loss in biomass in treated animals than in controls was observed, reflecting the higher energy expenditure during exposure to 0.05 mg Cd·L−1. An acute cadmium shock of 5 mg Cd·L−1 caused depression of oxygen consumption both in the control and in long-term preexposed snails to 0.05 mg Cd·L−1. If pre-exposure to a low (0.05 mg·L−1) concentration of cadmium lasted for a short time only (18 hr) a subsequent acute cadmium shock (5 mg·L−1) did not lead to a depression of the rate of oxygen consumption.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01055023
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