unit 6

1. a specialized device that allows a captured sea turtle to escope when cought in a fisherman's net, particularly in shrimp nets.
3. the incidental capture of non-target species such as dolphins. marine turtles and seabirds.
5. a filter-feeding system, made of keratin, inside the mouths of baleen whales
8. a visible line along the side of a fish consisting of a series of sense organs which detect pressure and vibration
9. producing young by means of eggs which are hatched within the body of the parent, as in some sharks.
12. fin tail fin of a fish
15. bringing forth live young that have developed inside the body of the parent
17. the hard upper shell of a turtle, crustacean, or arachnid.
19. Bladder a gos-filled sac found in bony fishes which controls buoyancy.
20. flat v-shaped scales that cover a shark and which decrease drag and turbulence, allowing the shark to swim quietly and efficiently.
21. thickened plates of keratin that make up a turtle's shell and can be used in identifying different species of sea turtles.
22. snout-like projection found on dolphins and whales
23. producing young by means of eggs that are hatched after they have been laid by the parent.

2. global organization dedicated to the preservation of wholes and dolphin
4. the act of removing fins from sharks and discarding the rest of the shark back into the ocean.
6. the location of objects by reflected sound, in particular that used by animals such as dolphins and bats.
7. a tube of turtle nesting where large groups of females gather offshore and come onto the beach to nest all at once
10. a skeletal structure made of cartilage
11. a whale's tail
13. an unpaired fin on the back of a fish or whale, e.g. the tall triangular fin of a shark or killer whale
14. technical term for a gill cover. Found on bony fish.
16. In fish anatomy and turtle anatomy, a barbel is a slender, whisker-like sensory organ near the mouth.
18. the negrly flat part of the shell structure on the belly of a turtle.