fish species

Fish species refer to the various types of fish categorized based on shared characteristics, such as physical traits, habitat, and reproductive methods. There are three main groups: bony fish (like salmon and trout), cartilaginous fish (such as sharks and rays), and jawless fish (like lampreys). Each species plays a unique role in its ecosystem, contributing to biodiversity and food webs. Fish are found in diverse environments, from oceans and rivers to lakes, and they vary widely in size, color, and behavior, making them a fascinating subject of study in biology and ecology.