Marine Animals

1
Marine Animals

• Oxygen revolution

2
Invertebrates

• Porifera
• Cnidaria
• Platyhelminthes
• Nematoda
• Annelida
• Mollusca
• Arthropoda
• Echinodermata
• Chordata

3
Porifera

• Sponges
• Suspension feeders
• Spicules
• spongin

4
Cnidaria

• Jelly fish
• Sea anemones
• Corals
• Hermaptic
• zooxanthellae
• Cnidoblasts
• Radial symetry
• Medusa
• polyp

5
The Worm Phyla

• Bilateral symmetry
• Platyhelminthes
• Nematoda
• Annelida
• Metamerism
• polychaeta

6
Mollusca

• Gastropoda
• Bivalvia
• Cephalopoda

7
Arthropoda

• Crustacea
• Exoskeleton
• Chitin
• Molt
• Striated muscle
• Articulation

8
Echinodermata

• Asteroidea
• Water-vascular system
• Ophiuroidea
• Echinoidea
• Holothuroidea

9
Chordates

• Invertebrate chordates
• Tunicates
• amphioxus
• Vertebrate chordates
• Fishes
• Agnatha
• Chondrichthyes
• osteichthyes

10
The Problems of Fishes

• Movement, shape and propulsion
• Maintenance of level
• Swim bladders
• Gas exchange
• Gill membranes
• Osmotic considerations
• Osmosis
• Osmoregulation
• Hypotonic
• Feeding and defense

11
Feeding and Defense

• Lateral line system
• Cryptic coloration
• schooling

12

• Amphibians
• Marine reptiles
• Sea turtles
• Marine crocodiles
• Sea snakes

13

• Marine Birds
• The Tubenoses
• The Pelicans
• The Gulls
• Penguins

14

• Marine mammals
• Cetacea
• Porpoises, dolphins and whales
• Echolocation
• baleen
• Carnivora
• Seals, sea lions, walruses and sea otters
• Sirenia
• Manatees and dugongs