'Pelvic fins' diaporamas de présentation

Chapter 13: Primative Fishes...

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SHARK WEEK

SHARK WEEK. http://www.youtube.com/watch?v=UruXWui1EG8. Discovery Channel Shark Week. http://dsc.discovery.com/sharks/shark-o-nator Resource site. Shark Myths. http://www.mote.org/index.php?engine_id=&src=search&search_id=search_new&search_this=shark+myth Resource site

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Chordates

Chordates. Characteristics common to ALL chordates. Dorsal nerve cord Pharyngeal slits Notochord Tail. Dorsal nerve cord. Pharyngeal Slits. The wall of the pharynx is perforated by up to 200 vertical slits , which are separated by stiffening rods. Jawless to Jaw.

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Phylum Chordata and Subphylum Vertebrata

Phylum Chordata and Subphylum Vertebrata. Fred Searcy Zoology. Phylum Chordata. Big Four Chordate Traits Presence of a notochord Presence of pharynx with pouches or slits in their walls Dorsal, hollow nerve cord, and Post anal tail. Notochord (Gr. Noton = back, L. chorda = chord).

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Organisms in class Reptilia share the characteristic of

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IDENTIFICATION OF FISHES

IDENTIFICATION OF FISHES. Within the Lower Sacramento and San Joaquin Rivers, Delta and shoreline Bay habitats. USFWS Juvenile Fishes Monitoring Sites. General Anatomy. Mouth Structure. Dorsal and Anal fin ray counts. First rudimentary ray is not counted

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Zoology Notes

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Zoology Notes # 6

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Identification of Nongame Fishes Workshop

Identification of Nongame Fishes Workshop. Michigan AFS Lake Superior State University March 3-4, 2008 Presented by Kevin Wehrly Institute for Fisheries Research Michigan Department of Natural Resources and University of Michigan. Acknowledgement.

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November 14, 2008. Fish Friday 1. Scombroidei 2. Grab bag of small marine fishes

November 14, 2008. Fish Friday 1. Scombroidei 2. Grab bag of small marine fishes 3. We will read the Karieva et al. paper for next Wednesday (not Monday). Life tables next week!. Test #2 - Not so good as test #1. Grand Average = 37.9 (76%)

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SHARKs

SHARKs. Shark week!!. Cartilaginous Fish. Cartilage is a flexible connective tissue composed of cells and protein. Fish whose entire skeleton is composed of cartilage are called cartilaginous fish. They are placed in the class Chondrichthyes

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The Bony Fishes

The Bony Fishes. Ceolacanths: Lobed finned fishes. Ceolacanths: Lobed finned fishes. Ceolacanths are relics of an evolutionary line that gave rise to the tetrapods, or land vertebrates.

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Where are we Taxonomically?

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Fish Anatomy & Taxonomy

Fish Anatomy & Taxonomy. Orientation. Dorsal Fin. Large fin on back that varies in size, shape and position Stabilizes fish . Pectoral & Pelvic Fin. Pectoral Fins: Located on side of body Used for steering & locomotion Pelvic Fins: Located on belly or under pectoral fins

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Taxonomy and External Anatomy of a Dogfish Shark

Taxonomy and External Anatomy of a Dogfish Shark. Why is it called a spiny dogfish shark?. Dogfish because they turn their head side to side when they swim Spiny because they have spines near their fins . Taxonomy. K: Animalia P: Chordata SP: Vertebrata C: Condrichthyes

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Gasterosteidae (sticklebacks)

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The shape of fish is dictated by the properties of water and the lifestyle of the fish

Head Trunk Tail . Pectoral fins Pelvic fins Nape Lateral line Dorsal fin spiny dorsal soft dorsal Vent (anus). Snout Mouth Nares Eye Operculum Branchiostegal membrane. Caudal fin Caudal peduncle Adipose fin Anal fin.

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Sharks

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Pinnipeds and Otters

Pinnipeds and Otters. Phylum Chordata; Class Mammalia; Order Carnivora ; Suborder Pinnipedia (means fin footed) ex: seals, sea lions, and walrus ( 33 species). General characteristics:. NOAA. - excellent swimmers. have thick layers of blubber to protect from the cold.

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Notes: Cartilaginous Fish

Notes: Cartilaginous Fish. Rays and Skates. Bat Ray. Rays and Skates. General characteristics Dorso-ventrally flattened bodies Bottom dwellers are called demersal . Always have 5 pairs of gill slits Pectoral fins are flattened like wings Eyes on the top of the head (adult stage)

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