FISH MORPHOLOGY
FISH MORPHOLOGY
Body Shape - Fusiform• Streamlined, torpedo-shaped• Fast-swimming fish• Predators, live in open water• Move tail side to side• Examples: tuna, swordfish, shark, striped bass
side view front view
Body Shape - Compressiform• Compressed from side to side• Quick bursts of speed over short distances• Live among plants and move in narrow spaces• Examples: moonfish, angelfish• Move tail side to side
front view
Body Shape - Depressiform
• Flattened top to bottom• Live on bottom• Slow• Flap fins up and down and swim like a bird• Examples: flounder, skates, rays
front view
Body Shape – Filiform (Attenuated)
• Elongated shapes• Live in soft mud, sand or under rocks• Slow• Slither like a snake• Examples: eels, sand lance
side view
Fins classified into paired and unpaired :
Paired : pectoral fins and pelvic fins
Unpaired : dorsal fins,anal,caudal fins