Fishes - BiologyF. Respiratory System

2. Gill Structures

Fishes - BiologyF. Respiratory System

2. Gill Structures

Fishes - BiologyG. Regulation of Internal Environment

1. Chondricthyes

Fishes - BiologyG. Regulation of Internal Environment

2. Bony Fish

Fishes - BiologyH. Sensory Systems

1. Smell/Taste• Sensory cells in olfactory sacs

2. Lateral lines

Fishes - BiologyH. Sensory Systems

3. Inner Ear• Calcareous otoliths – rest on sensory hairs

Fishes - BiologyH. Sensory Systems

4. Electro Magnetic Fields

Fishes - BiologyI. Behavior

1. Schooling

Swimming Feeding Predator Avoidance

Fishes - BiologyI. Behavior

2. Migration

Anadromous

Transoceanic

Fishes - BiologyI. Behavior

2. Migrationa) Anadromous

• Spend most of life in ocean and spawn in freshwater

• Salmon – use smell and magnetic field to find home river

• Salmon – habitat destruction impacts reproduction ability

Fishes - BiologyI. Behavior

2. Migrationb) Catadromous

• Spend most of life in freshwater and spawn in saltwater