Protocols of Fish Biology is a comprehensive book specifically designed to meet the Model Curricular requirements of students studying at the UG and PG levels, as well as aspirants preparing for UGC-NET, various certificate, diploma, and degree vocational courses, CSIR-NET, and similar examinations. The book is divided into six units and 47 chapters that cover all aspects of ichthyology, including distribution, evolution, and adaptation, characteristics, classification, physiology, and economic importance of fish. The book provides current information and advancements on the scheme of classification given by Nelson (2016), genomics, and the effects of climate change on fish. Each chapter is labeled with appropriate headings and subheadings in bold.

From the majestic migrations of ocean wanderers to the intricate social structures of freshwater communities, this book delves into the fascinating tapestry of fish biology. The book demonstrates the author's extensive knowledge, innovative ideas, and lucid style of explaining text clearly and systematically. This book may pique readers' interest by transforming the ordinary into the extraordinary and mirroring the depths of knowledge with the ocean.

Dina Nath Pandit (vidwan id score 9.7) is working as an Associate Professor in the Department of Zoology, Veer Kunwar Singh University, Arrah – 802 301. He did his Masters in Zoology in First Class from TM Bhagalpur University, Bhagalpur – 812 007, India and Ph. D. from the same University in 2002 on a problem related to “Live Fish Transportation.” He was the beneficiary of the ICAR and the CSIR fellowship. He qualified tests for a lectureship in Life Sciences and Zoology. He taught Fish and Fisheries, Animal Taxonomy, Biostatistics, Bio-techniques, Cell and Molecular Biology, Genomics, Ethology and Ecology at UG and PG level since twenty years. He has supervised PhD work of sixteen research students and published around seventy research papers in the Journals of National and International repute.  He has presented paper in the Science Communicators’ Meet during 103rd Indian Science Congress from January 3rd to 7th of 2016 at Mysore University, Mysuru.

He is the recipient of the Bharat Shiksha Ratna Award from Global Leaders Foundation, Delhi; the Congress of Zoology Medal from the Zoological Society of India, India; the SLS Recognition Award from the Society of Life Sciences, Satna, MP, an Eminent Ichthyologist Award from Asian Biological Research Foundation, Prayagraj (India) and recently SKSS Best Scientist Award from Sarvhit Kalyan Seva Samiti, Meerut.

He is a life member of the Society of Fisheries Technologists (India), Cochin and Indian Fisheries Association, Versova, Mumbai. He is a member of the RSB, London; a Fellow member of the RSS, London; a Fellow Member of the ZSL, London; General Committee Member of the RSS, London local group in India and many prestigious societies. It signifies the he is a well qualified professional biologist subject to a rigorous code of conduct.

Earlier, he authored four textbooks entitled “ANIMAL TAXONOMY - PRINCIPLES AND PRACTICES” from Narendra Publishing House, Delhi; “LIVE FISH TRANSPORTATION” from NIPA® GENX Electronic Resources & Solutions P. Ltd. New Delhi-110 034 and “STATISTICS: A MODERN APPROACH” as well as “RESEARCH METHODOLOGY FOR Ph.D. COURSEWORK” from Hindustan Publishing Corporation (India), Delhi also available on Amazon and Flipkart

Unit-I Overview of Fish Diversity 
1.Introduction, 2.Zoogeography of Fishes,3.Ancestry of fishes, 4.General characters of Fishes
5.Taxonomy of Fishes 

Unit-II Type of Study of Fish
6.Agnatha,, 7.Placoderms,8.Elasmobranchs, 9.Holocephali, 10.Telesotomi , 11.Crossopterygii
12.Dipnoi

Unit-III Fish Physiology
13.Fins, 14.Integumentary system , 15.Skeletal system, 16.Movement and Locomotion 
17.Acoustico-lateralis system, 18.Digestive system , 19.Aquatic Respiration,  20.Accessory Respiration, 21.Air bladder and Weberian apparatus, 22.Blood vascular system, 23.Excretion, 24.Osmoregulation, 25.Nervous system, 26.Endocrine system, 27.Sense organs
28.Specialised organs

Unit-IV Reproduction, Development, Genomics and Behaviour of Fish
29.Reproduction, 30.Sexual Dimorphism ,31.Courtship and Mating Behaviour, 32.Development
33.Parental Care, 34.Fish Genomics, 35.Age  and Growth Determination,36.Fish-migration

Unit-V Threats to Fish Popluation
37.Population Dynamics, 38.Effect of Climate Change on Fishes, 39.Fish Pathology

Unit-VI Ecology and Importance of Fish
40.Deep Sea Fishes, 41.Cold Water Fishes, 42.Common Food Fishes,43.Exotic Fishes, 44.Ornamental Fishes, 45.Game Fishes, 46.Larvivorous Fishes, 47.Economic Importance of Fishes

Multiple Choice Question
Fish Name Index
Subject Index
Reference
Webliography