Acute toxicity of nickel to fresh water prawns

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Turkish Journal of Zoology
Volume:36 Issue:4
Acute toxicity of nickel to fresh water prawns

Acute toxicity of nickel to fresh water prawns

Authors : Ravi Shanker VERMA

Pages : 534-542

View : 13 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In the present study, the LC50 of nickel and its impact on the behaviour of 2 species of freshwater prawns, Macrobrachium lamarrei insert ignore into journalissuearticles values(H. Milne Edwards); and Macrobrachium dayanum insert ignore into journalissuearticles values(Henderson); was evaluated. An inverse relationship between LC50 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 insert ignore into journalissuearticles values(416.47 mg/L); than in M. lamarrei insert ignore into journalissuearticles values(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 : Key words Heavy metals, behaviour, aquatic toxicity, crustacean, bioindicator

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