This manual is primarily intended for teachers, students and researchers interested in a practical approach to fishery science. The manual consists of three parts (i) Pisciculture, (ii) aquarium keeping and (iii) consists of various tools and techniques divided in 24 chapters. This manual is sectioned under the heads, ideal fish farm, identification, classification of various fish and plants, fecundity, morphometry, fish scale study, aquatic insects, fish pathogen, aquarium fishes, plants, construction of aquarium, biological oxygen demand, chemical oxygen demand, dissolved oxygen, pH, alkalinity, turbidity, transparency, etc. lastly index is given. There are scattered pieces of information on fishery science and ornamental fish culture in books, research journals, reports and some pamphlets published by Government and other agencies. Thus in the present venture an attempt has been made to put all available information from different sources at one place in this book.
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