Fun Fish Facts!

ClassificationDomain Eukarya

Kingdom AnimaliaPhylum Chordata

Class Osteichthyes

Fish Anatomy

Cool Parts!Swim Bladder – keeps fish at a constant depth

Closed circulatory system with a 2-chambered heart

Scales – hard, overlapping outer covering for protection

Lateral line – can detect vibrations and pressure

Spawning – external reproduction

Fish Groups – Jawless fishHave no jaws…No scales no paired fins

Examples:Lampreys hagfish

Fish Groups – Cartilage Fish Endoskeletons made of cartilageJawsScalesPaired fins

Examples:SharksRaysSkates

Bony Fish Endoskeletons made of boneJawsPaired finsMost have scales

ExamplesCatfishBasstrout