Fishes

Fishes - BiologyA. Body Shapes

• Strongly related to lifestyle

Fishes - BiologyA. Body Shapes

1. Fusiform

Video

Fishes - BiologyA. Body Shapes

2. Laterally CompressedVideo

Fishes - BiologyA. Body Shapes

3. Flattened

Fishes - BiologyA. Body Shapes

4. Eel-likeVideo

Fishes - BiologyA. Body Shapes

5. Unusual, Irregular

Video

Fishes - BiologyB. Coloration

• Color comes from pigments in chromatophores

• Structural colors come from iridophores

1. Warning Coloration

2. Cryptic Coloring

3. Disruptive Coloring

4. Countershading

Fishes - BiologyB. Coloration

Cryptic Countershading

Warning Disruptive

Fishes - BiologyC. Locomotion

• Most fish use rhythmic side to side motion of body produced by myomers

1. Sharks and Rays

Fishes - BiologyC. Locomotion

2. Bony Fishesa) Eel-like

b) Cadual

c) Dorsal/anal

d) Pectoral

e) Other

Fishes - BiologyD. Feeding

1. Sharks and Cartilaginous Fisha) Carnivores that bite pieces off larger prey

b) Ingest smaller prey whole

c) Filter plankton using gill rakers

video Pictures

Fishes - BiologyD. Feeding

2. Bony Fisha) Capture large prey whole

b) Pickers – ingest small prey whole

c) Grazers

d) Filter Plankton

Fishes - BiologyD. Feeding

2. Bony Fish

Fishes - BiologyE. Circulatory System

Fishes - BiologyF. Respiratory System

1. Irrigation of gills

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