Synopsis The aim of this book is to present a comprehensive account of the physiological requirements of Indian White Shrimp Fenneropenaeus indicus. This book contains nine chapters. The first chapter broadly presents the animal's responses to various ecophysiological conditions encountered both in sea and estuary. Information with regards to impact of different biotic and abiotic stresses are also discussed in this chapter. Energy load on animals while adjusting to the surrounding medium, becomes an important factor in estimating the final yield or production per unit hectare in culture operations. Chapter two deals with such basic information on osmologulatory functions.  The respiratory metabolism or metabolic rate of crustacean animal is influenced by a number of biotic and abiotic factors. In culture oriented studies it is important to know the requirement of oxygen, combinations of environmental factors etc. for well being of the shrimp health. Chapter three deals with these aspects. Chapter four describes the mechanism of moulting, growth pattern, neuroendocrine control of moulting, moulting metabolism, mobilization of minerals and environmental factors controlling moulting. Chapter five and six deal with digestive physiology, nutrition and feed requirements of the species. Chapter seven and eight deal with physiology of reproduction including neuroendocrine mechanisms and other endocrine factors that control reproduction. The last chapter is on cryopreservation of gamete, embryos and larvae of this species. This chapter is important for genetic upgradation and production of new strains of desired characteristics.