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Scientific Transactions in Environment and Technovation

Research

Scientific Transactions in Environment and Technovation, | 0
Year : 2015 | Volume: 6 | Issue: 2 | Pages : 74-76

Biochemical Studies on normal and flacherie diseased mulberry silk worm (Bombyx mori.L)

Abstract :

Accumulation of trace metals (Zn, Cu, Fe and Mn) in water, sediments and clam Meretrix casta at Tharangampadi and Vanjur estuaries of Nagapattinam District lying along the southeast coast of India were studied during January 2000 to December 2001 using atomic absoption spectrophotometer. The study showed spatial and temporal differences for all the metals studied. Accumulaiton of trace metals were observed in the order of sediments>clam>water. In water, the order of accumulation of trace metals was found to be Fe>Zn>Cu>Mn in Tharangampadi estuary and Fe>Zn>Mn>Cu in Vanjur estuary respectively. Higher values were recorded for Zn (146.0 mg.1-1) during monsoon, Fe (225.20 µg.1-1) during monsoon and Mn (68.90 mg.1-1) during summer at Vanjur estuary for Cu (75.08 µg.1-1) during post monsoon at Tharangampadi estuary. In sediments, the order of trace metals accumulation was found to be Fe>Mn>Zn>Cu at both the stations. In the sediment samples higher values of Zn (181.80 µg.g-1) were recorded during monsoon, Cu (64.98 µg.g-1) during summer and Mn (143.10 µg.g-1) during monsoon at Tharangampadi estuary and higher values of Fe (44000 µg.g-1) during monsoon at Vanjur estuary. In the clam Meretrix casta, the of trace metal accumulation was found to be Fe>Mn>Zn>Cu in Tharangampadi estuary and Fe>Zn>Mn>Cu in Vanjur estuary, respectively, with the values being higher for Zn (377.2 µg.g-1) during pre monsoon, Fe (1505.2 µg.g-1) during pre monsoon  and Mn (312.4 µg.g-1) during monsoon at Tharangampadi estuary and for Cu (156.80 µg.g-1) during summer at Vanjur estuary.

Keywords:

Bioaccumulation,Meretrix casta,Tharangampadi,Trace metals,Vanjur

Citation: *,

( 2015), Biochemical Studies on normal and flacherie diseased mulberry silk worm (Bombyx mori.L). Scientific Transactions in Environment and Technovation, 6(2): 74-76

Mr.Veerapathiran K

Correspondence: P.Natarajan


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