Acute toxicity of nickel to fresh water prawns

Authors

RAVI SHANKER VERMA

DOI

10.3906/zoo-1102-18

Abstract

In the present study, the LC_{50} of nickel and its impact on the behaviour of 2 species of freshwater prawns, Macrobrachium lamarrei (H. Milne Edwards) and Macrobrachium dayanum (Henderson) was evaluated. An inverse relationship between LC_{50} values and exposure duration was obtained. Nickel was found to be 6.33 times more toxic to M. lamarrei than to M. dayanum. Nickel exposure increased aggression and loss of balance in both species of prawns in a concentration-dependent manner with both parameters being higher in M. dayanum (416.47 mg/L) than in M. lamarrei (65.77 mg/L). All behavioural parameters decreased with increase in exposure duration in both prawn species, with the exception of grasping behaviour and the number of individuals showing loss of balance.

Keywords

Heavy metals, behaviour, aquatic toxicity, crustacean, bioindicator

First Page

534

Last Page

542

Recommended Citation

VERMA, RAVI SHANKER (2012) "Acute toxicity of nickel to fresh water prawns," Turkish Journal of Zoology: Vol. 36: No. 4, Article 14. https://doi.org/10.3906/zoo-1102-18
Available at: https://journals.tubitak.gov.tr/zoology/vol36/iss4/14