Dr. C.B.L. Srivastava, D.Phil., D.Sc., FNASc., is a veteran Indian ichthyologist internationally well known. Formerly Professor and Head of the Department of Zoology and Dean, College Development Council at the University of Allahabad, he is at present Emeritus Professor. He has nearly 40 years of teaching and research experience in the field of fishery biology. He also worked in research laboratories in France, Germany and Switzerland. His work has earned him international recognition by way of extensive citation and quotation. Dr. Srivastava was elected Fellow of National Academy of Science, India, and was also awarded the Uttar Pradesh Government Education Minister’s Gold Medal for research. He has been associated with several scientific bodies in the capacity of member, editor, referee, board member or editorial board member. His earlier books—A Textbook of Fishery Science and Indian Fisheries, Fish Biology, Aquarium Fish Keeping, and Catfish Soft Anatomy—have received admiration and popularity among students and teachers in India and abroad. Dr. Sushma Srivastava, Asstt. Professor, Department of Zoology, MM (PG) College, Modinagar (UP), is a gold medallist from University of Allahabad from where she obtained her D.Phil. She joined Delhi University for her postdoctoral research work as a CSIR Research Associate. She had undertaken UGC Research project and has 25 years of research experience and ten years of UG and PG level of teaching experience. She has a number of research papers published in reputed national and international journals. She is actively engaged in teaching and research work in the area of fish and fisheries.