The Physiology of Fish . Book 1. Physiology of blood and blood circulation of fish. The Immune System of Fish by Zhichkin L. In. , Karpenko L. Yu. , Kasumov M. K. and Skopicheva V. G. It is a fascinating and in-depth study that immerses the reader in the world of fish physiology, revealing to him many unique aspects related to their life activities. This work will be a real discovery for students, graduate students, researchers and anyone interested in the biology of aquatic organisms. The book covers two key topics: the physiology of the blood and circulation of fish, as well as their immune system. It examines in detail the mechanisms that ensure the livelihoods of these amazing creatures living in a variety of water bodies - from fresh rivers to salty seas. The authors, having extensive experience in the field of ichthyology and physiology, offer the reader not only theoretical knowledge, but also practical data that can be useful in both scientific and practical activities. The physiology of fish blood is not just dry facts, but a whole world full of mysteries and amazing discoveries. The reader will learn about how fish blood is adapted to their living conditions, how it performs its functions in a variety of ecosystems and what unique mechanisms ensure its stability. The book also touches on issues related to blood circulation, describing how exactly the cardiovascular system of fish works and what features it has in comparison with other vertebrates. The fish immune system is another important topic that is raised in this book. The authors analyze in detail how fish are protected from infections and diseases, what mechanisms underlie their immune response, and how these processes can vary depending on their habitat. This information will be of particular interest to those involved in aquaculture, as well as exploring the impact of the environment on the health of aquatic organisms. The book "Physiology of fish" will be of interest not only to specialists, but also to a wide range of readers interested in biology and ecosystems. It is suitable for students of biological faculties, graduate students, as well as anyone who is fond of aquariums or just wants to better understand the life of the underwater world. Due to its accessible language and clear structure, the book will be an excellent guide for studying the physiology of fish. The style of the authors is distinguished by scientific accuracy and at the same time accessibility, which allows the reader to easily assimilate complex concepts. Zhichkina L. In. , Karpenko L. Yu. , Kasumov M. K. and Skopichev V. G. well-known experts in the field of ichthyology, and their previous work has already established itself as an authoritative source of information This book continues the tradition of high-quality scientific presentation, offering readers up-to-date data and fresh research. If you are looking for books on fish physiology, ichthyology or ecology of reservoirs, then "Physiology of fish. Book 1 will be an indispensable source of knowledge for you. It will not only expand your horizons, but also help you better understand the complex processes taking place in the underwater world. Do not miss the opportunity to immerse yourself in this fascinating topic and discover the secrets that hide the fish that live in our reservoirs.