Fish Morphology & Shipwrecks
description
Transcript of Fish Morphology & Shipwrecks
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Fish Morphology& Shipwrecks
Prepared by Avery PaxtonFebruary 2014
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CROSS-SECTIONAL BODY SHAPEFill out Fish Morphology, Part 1
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Example 1: Yellow-fin Tuna
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Example 1: Yellow-fin Tuna
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Example 1: Yellow-fin Tuna
Fusiform
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Example 1: Yellow-fin Tuna
Fusiform
• Streamlined• Fast-swimmer• Often in water
column
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Example 1: Yellow-fin Tuna
Fusiform
• Streamlined• Fast-swimmer• Often in water
column
Where would a fish with a fusiform shape live on a shipwreck??
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Example 2: Tautog
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Example 2: Tautog
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Example 1: Tautog
Compressed
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Example 2: Tautog
Compressed
• Quick speeds for short distances
• Not always moving because uses bursts of speed
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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??
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Example 3: Gulf Flounder
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Example 3: Gulf Flounder
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Depressed
Example 3: Gulf Flounder
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Depressed
• Swims along bottom like a flying bird
• Bottom-dweller
Example 3: Gulf Flounder
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Depressed
• Swims along bottom like a flying bird
• Bottom-dweller
Example 3: Gulf Flounder
Where would a fish with a depressed shape live on a shipwreck??
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Example 4: Conger Eel
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Example 4: Conger Eel
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Anguilliform
Example 4: Conger Eel
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• Not good swimmers
• Ribbon shaped
Example 4: Conger Eel
Anguilliform
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• Not good swimmers
• Ribbon shaped
Example 4: Conger Eel
Anguilliform
Where would a fish with an anguilliform shape live on a shipwreck??
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Image from Divernet.com
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Cross-Sectional Body Shapes
Depressed
Anguilliform
Compressed
Fusiform
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CAUDAL FIN SHAPEFill out Fish Morphology, Part 2
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Example 1: Angelfish
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Example 1: Angelfish
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Rounded
Example 1: Angelfish
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• Short bursts of speed
• High maneuverability
• Lots of dragRounded
Example 1: Angelfish
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• Short bursts of speed
• High maneuverability
• Lots of dragRounded
Example 1: Angelfish
Where would a fish with a rounded caudal fin live on a shipwreck??
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Image from BVIwelcome.net
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Example 2: Yellowedge Grouper
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Example 2: Yellowedge Grouper
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Truncated
Example 2: Yellowedge Grouper
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• Short bursts of speed
• Good maneuverability
• Not as much drag• Bottom-dwellersTruncated
Example 2: Yellowedge Grouper
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• Short bursts of speed
• Good maneuverability
• Not as much drag• Bottom-dwellersTruncated
Example 2: Yellowedge Grouper
Where would a fish with a truncated caudal fin live on a shipwreck??
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Image from arkive.org
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Example 3: Sheepshead
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Example 3: Sheepshead
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Forked
Example 3: Sheepshead
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• Good speed over longer distances
• Good maneuverability
• Not as much dragForked
Example 3: Sheepshead
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• Good speed over longer distances
• Good maneuverability
• Not as much dragForked
Example 3: Sheepshead
Where would a fish with a forked caudal fin live on a shipwreck??
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Example 4: Blue Runner
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Example 4: Blue Runner
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Lunate
Example 4: Blue Runner
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• High speed over long distances
• Poor maneuverability• Rigid with less surface
area less dragLunate
Example 4: Blue Runner
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• High speed over long distances
• Poor maneuverability• Rigid with less surface
area less dragLunate
Example 4: Blue Runner
Where would a fish with a lunate caudal fin live on a shipwreck??
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Caudal Fin Shapes
Forked
Lunate
Truncated
Rounded
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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