The Dangers of Fishing Near Sanctuaries

I took this photograph of a Chital Stag with a fishing net entangled in its antlers, at Kabini in Rajiv Gandhi National Park, Nagarahole on March 7, 2012. I feel that fishing with nets in the catchment areas is endangering the lives of animals and this photograph proves the point. The deer was photographed in the park, therefore it can probably be assumed that the net got entangled inside the boundaries of the park, most probably in the shallow waters of the catchment area, where the deer are apt to wade in search of food. Any alternative theory as to how it might have happened would change the entire scenario.