MARINE FISHES

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• MARINE FISHES
• Chapter 8

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Phylum Chordata
Subphylum Vertebrata
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Subphylum Vertebrata
Cranium
Larvae of a jawless fish
Vertebrae
Skeletal elements of a jawless fish
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Subphylum Vertebrata
Fishes
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Subphylum Vertebrata
Jawless Fishes
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Jawless Fishes ancient diversity
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Jawless fish Hagfish
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Jawless fish Lamprey
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Jawless Fishes modern diversity
Hagfish
Lamprey
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Jawless Fishes modern diversity
lampreys
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Jawed Vertebrates
Fossil placoderm
Jaws
Paired fins
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Class Chondrichthyes
Cartilaginous fishes
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Class Chondrichthyes
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Shark Diversity
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Manta birostris
Skates and rays
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Electric Ray
Narcine brasiliensis
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Ratfishes or chimaeras
Hydrolagus colliei
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Class Chondrichthyes-Biology
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Placoid scales (denticles)
Paired fins
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Ampullae of Lorenzini
Can detect weak electrical fields, e.g. locate
buried prey in sand
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Where can you find them within the ocean?
Demersal bottom dwellers e.g. nurse sharks
Pelagic top part of the water column e.g.
oceanic white tip sharks
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Countershading
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Countershading
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Shark Conservation
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http//www.korsgaardscommentary.com/2013/08/sharks
-are-going-extinct-heres-what-you-can-do-to-stop-i
t.html
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The End of Chondrichthyes Notes
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Class Osteichthyes
The Beginning of Bony Fishes Notes
Sarcastic Fringe
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Learning Targets
I can describe the diversity of Osteichthyes. I
can describe the biological traits that make this
class the most successful vertebrates group.
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Fish diversity
Ichthyologist on Fish Diversity
https//www.youtube.com/watch?vBTaLzjwjEHk
www.Bates.edu
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Class Osteichthyes
Bony skeleton
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Class Osteichthyes
Gill cover
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Class Osteichthyes
Mouth
Complex and adaptable
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Class Osteichthyes
Buoyancy
Swim Bladders Boyles Law https//www.youtube.c
om/watch?vMbVk0tQBMz0
http//www.pskf.ca/sd/
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Mobility
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Body form and niche
Flounder
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Coloration Camouflage
https//www.youtube.com/watch?vJFxhlyJ3U4Q
Chromatophores cells with pigment that can
rapidly contract/expand
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Fish behavior and life history
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Territoriality
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Fish Schooling
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Fish Migrations
Anadromous
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Fish Migrations
Anadromous
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Fish Migrations
Catadromous
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Fish Behavior- Care for Young
Video Clip Seahorse Giving Birth https//www.yout
ube.com/watch?vMsHCqrrU-Gk
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Learning Targets
I can describe the diversity of Osteichthyes. I
can describe the biological traits that make this
class the most successful vertebrates group.
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The End- Osteichthyes Notes