1. National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Lake Side Campus, Fine Arts Avenue, Kochi 682016, India E-mail: rejishkumar@gmail.com; valsamma@cusat.ac.in; bsingh@md3.vsnl.net.in
2. Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Lake Side Campus, Fine Arts Avenue, Kochi 682016, India E-mail: rose@cusat.ac.in