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The effect of temperature and salinity on copper body-burden and copper toxicity toHediste(Nereis)diversicolor

✍ Scribed by P. T. E. Ozoh

Publisher
Springer
Year
1992
Tongue
English
Weight
382 KB
Volume
21
Category
Article
ISSN
0167-6369

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✦ Synopsis

Temperature from 12 to 22 ~ and salinity from 30.5 to 7.6%o increased accumulation of copper in Hediste diversicolor. Copper accumulated ranged from 85.83 to 217.14 ~g g-~. Sediments reduced accumulation of copper under temperature-salinity combinations. Accumulated copper ranged from 90.19to 153.26 #gg ~.

However, mortality of the worms was not solely dependent upon copper body-burden. It ranged from 34 to 45% and from 38 to 80% in the presence of sediment. A combination of osmoregulatory and thermal stresses increased the toxic effect of copper to the worms.

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