Dr. Ayyappan’s awards include Zahoor Qasim Gold Medal for the Society of Biosciences in India (1996-1997), Special ICAR Award (1997), ICAR Award for Team Research as the Team leader for significant contributions in fisheries (1997-1998), Zoological Society of India Gold Medal (1998), Recognition Award (Animal Sciences) of the National Academy of Agricultural Sciences in India (2001-2002), Dr. V.G. Jhingran Gold medal (2002), Prof. H.P.C. Shetty Award for Excellence in Fisheries Research and Development, Asian Fisheries Society, Indian Branch (2002), Dr. S.R. Bhargava Medal (2003), and Dr. S.L. Hora Gold Medal (2003). Dr. Ayyappan holds a PhD from Bangalore University and a master’s degree in Fish Production and Management from the College of Fisheries in Mangalore. He has published extensively in areas of fisheries, limnology, and aquatic microbiology.
He is a Fellow of National Academy of Agricultural Sciences, India; Society of Nature Conservators, India; Bioved Society, India; Inland Fisheries Society of India; Zoological Society of India; Association of Aquaculturists; National Institute of Ecology; Academy of Science, Engineering and Technology; Academy of Environmental Biology; Society of Biosciences; and ISEP Science Academy.