1. Nekton- the swimmers

2. Three Different Types of Nekton:
Chordates- Chordates are the largest group of nektons and have bony cartilage. This group includes bony fish, whales, sharks, turtles, dolphins, marine reptiles, marine birds, and seals.
Mollusks- Nektons that include animals like squid and octopus.
Arthropods- Nektons that include animals like shrimp, which are mostly bottom dwelling animals.

3. Fish Have bony skeletons Benthic- those that live near the bottom
Pelagic- those that have no connection to the bottom

4. Bony Fish
Examples
Gopher Rockfish

5. Black And Yellow Rockfish

6. Blenny

7. Clownfish

8. Puffer Fish : Hydrocynus vittatus

9. Flounder

10. Abyssal Types

11. Angler fish

12. Sharks and Rays
have skeletons made of cartilage

13. Zebra shark

15. Marine Mammals Regulate their body temperature Feed their young milk
Have fur at some time during their life history

17. Marine Reptiles Don’t regulate their internal temperature
Lay eggs on land

19. Marine Birds

20. All About Marine Birds
Marine birds do not get wet when they enter the water. A preening gland secretes waxes and fats that a bird spreads throughout its feathers in order to make itself waterproof/insulated.
Many marine birds have salt glands, which concentrate salt from blood in an area near the sinuses. The bird then can rid itself of excess salt by "sneezing" the salt out.
The majority of the fresh water that marine birds need comes from their prey.

22. Molluscs

23. All About Molluscs Very soft-bodied invertebrates (no spine)
Some of the most well-known mollusks (like the octopus, for example) have no shells at all
Many mollusks have a muscular foot that they use for motion.

24. Arthropods

25. All About Arthropods
The Subphylum Crustacea has about 50,000 species of lobsters, crabs, shrimp, barnacles, brine shrimp and others.
Anthropods have a segmented body, and an exoskeleton.