Essential Fish Biology

Fish are aquatic vertebrates that play a crucial role in ecosystems worldwide. They are characterized by their streamlined bodies, gills for breathing underwater, and fins for locomotion. The majority of fish are categorized as ectotherms, indicating that their metabolic processes and mechanisms for retaining heat are inadequate for internally warming their bodies. Their streamlined body is adorned with scales, and they reproduce by laying eggs. Fish species are broadly categorized into two groups based on their habitats. These consist of marine fishes, also known as saltwater fishes, and freshwater fishes. The topics included in this book on fish biology are of utmost significance and bound to provide incredible insights to readers. While understanding the long-term perspectives of the topics, the textbook makes an effort in highlighting their impact as a modern tool for the growth of the field. This textbook is an essential guide for both academicians and those who wish to pursue this discipline further.