On the way to learn molecular taxonomy we realize to have an area specific fish identification key which help students to identify fish up to family level which can further confirm up to species level with the help of molecular taxonomy. The book will also help student to understand basic taxonomy on fish and make them realize that molecular taxonomy is a significant advance tool but cannot overtake conventional taxonomy as on field identification tool. Other information provided in the book on regulation of fishes in Gujarat and economic importance of fish in Gujarat though Gujarat is consider as one of the Vegetarian state of country, will help students to explore more opportunity in the field of fishery.