Journal of Environmental Biology

Impact of de-silting of pond on the growth and survival of catla (Catla catla) spawn

 

K. Manjappa*¹ and C. Vasudevappa²

 

¹Zonal Agricultural Research Station, Navile, Shimoga ? 577 204, India

²Inland Fisheries Division, University of Agricultural Sciences, Hebbal, Bangalore - 560 024, India

 

(Received: January 01, 2007; Revised received: September 13, 2007; Accepted: October 18, 2007)

 

Abstract: Experiments were conducted in non-desilted and de-silted earthen nursery ponds for a period of fifteen days to evaluate the growth and survival of Catla spawn. The fry attained an average weight of 42.03?0.36 and 74.36?72 mg, with a survival rate of 23.44?0.31and 50.91?0.21% in non-desilted and de-silted ponds respectively. Mentioned length data also indicate that growth and survival of Catla spawn was significantly higher in de-silted ponds.

 

Key words: ? Pond silt, De-silting, Catla spawn, Soil and water quality

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