Fish Morphology Shipwrecks Prepared by Avery Paxton February
Fish Morphology & Shipwrecks Prepared by Avery Paxton February 2014
CROSS-SECTIONAL BODY SHAPE Fill out Fish Morphology, Part 1
Example 1: Yellow-fin Tuna
Example 1: Yellow-fin Tuna
Example 1: Yellow-fin Tuna Fusiform
Example 1: Yellow-fin Tuna • • • Fusiform Streamlined Fast-swimmer Often in water column
Example 1: Yellow-fin Tuna • • • Streamlined Fast-swimmer Often in water column Fusiform Where would a fish with a fusiform shape live on a shipwreck? ?
Example 2: Tautog
Example 2: Tautog
Example 1: Tautog Compressed
Example 2: Tautog • • Compressed Quick speeds for short distances Not always moving because uses bursts of speed
Example 2: Tautog • • Compressed Quick speeds for short distances Not always moving because uses bursts of speed Where would a fish with a compressed shape live on a shipwreck? ?
Example 3: Gulf Flounder
Example 3: Gulf Flounder
Example 3: Gulf Flounder Depressed
Example 3: Gulf Flounder • Depressed • Swims along bottom like a flying bird Bottom-dweller
Example 3: Gulf Flounder • Depressed • Swims along bottom like a flying bird Bottom-dweller Where would a fish with a depressed shape live on a shipwreck? ?
Example 4: Conger Eel
Example 4: Conger Eel
Example 4: Conger Eel Anguilliform
Example 4: Conger Eel • • Anguilliform Not good swimmers Ribbon shaped
Example 4: Conger Eel • • Not good swimmers Ribbon shaped Anguilliform Where would a fish with an anguilliform shape live on a shipwreck? ?
Image from Divernet. com
Cross-Sectional Body Shapes Fusiform Compressed Depressed Anguilliform
CAUDAL FIN SHAPE Fill out Fish Morphology, Part 2
Example 1: Angelfish
Example 1: Angelfish
Example 1: Angelfish Rounded
Example 1: Angelfish • • Rounded • Short bursts of speed High maneuverability Lots of drag
Example 1: Angelfish • • Rounded • Short bursts of speed High maneuverability Lots of drag Where would a fish with a rounded caudal fin live on a shipwreck? ?
Image from BVIwelcome. net
Example 2: Yellowedge Grouper
Example 2: Yellowedge Grouper
Example 2: Yellowedge Grouper Truncated
Example 2: Yellowedge Grouper • • Truncated • • Short bursts of speed Good maneuverability Not as much drag Bottom-dwellers
Example 2: Yellowedge Grouper • • Truncated • • Short bursts of speed Good maneuverability Not as much drag Bottom-dwellers Where would a fish with a truncated caudal fin live on a shipwreck? ?
Image from arkive. org
Example 3: Sheepshead
Example 3: Sheepshead
Example 3: Sheepshead Forked
Example 3: Sheepshead • • Forked • Good speed over longer distances Good maneuverability Not as much drag
Example 3: Sheepshead • • Forked • Good speed over longer distances Good maneuverability Not as much drag Where would a fish with a forked caudal fin live on a shipwreck? ?
Example 4: Blue Runner
Example 4: Blue Runner
Example 4: Blue Runner Lunate
Example 4: Blue Runner • • • Lunate High speed over long distances Poor maneuverability Rigid with less surface area less drag
Example 4: Blue Runner • • • Lunate High speed over long distances Poor maneuverability Rigid with less surface area less drag Where would a fish with a lunate caudal fin live on a shipwreck? ?
Caudal Fin Shapes Rounded Truncated Forked Lunate
Assignment • Complete part 3 of worksheet – NC Shipwrecks – Given 10 fish that are commonly found on shipwrecks – Classify cross-sectional body shape, caudal fin shape, and where it lives on a shipwreck
- Slides: 54