IJSRP, Volume 2, Issue 12, December 2012 Edition [ISSN 2250-3153]
Nusrat Rasool, Ulfat Jan, G. Mustafa Shah
The feeding habits and diet composition of the stream dwelling resident brown trout Salmo trutta fario in the upper streams of the Kashmir valley were investigated by examining the stomach contents of 108 specimens collected from January 2004 to December 2005. Analysis of monthly variations of stomach fullness indicated that feeding intensity was higher between March and July than that for the spawning season that covered the period from October to December. A total of 4464 individual preys were counted representing trichoptera, ephemeroptera, diptera, plecoptera, coleoptera, odonata, amphipoda, hirudinea, megaloptera; trout egg, plant seeds and terrestrial ants were also identified in the diet. The index of relative importance (IRI%) revealed that four food items together constituted more than 90% of the diet, with the most important being Brachycentridae (51.55%), Blepharocera (14.06%), Baetis species (10.48%) and Ephemerella species (5%).