Experimental investigation on solar drying of fish using so- lar tunnel dryer was carried out by Bala and Mondol (2001). Jain and Pathare (2007) studied the drying characteristics of prawn and chelwa fish in an open sun dryer from 32.5 to 42.5 °C temperature and relative humidity that varies between 15% and 32%. They found that the logarithmic model could adequately describe the drying of fish; and reporting that the effective moisture diffusivity was 8.708 · 10