Bony Fish
Do bony fish live in fresh water or salt water?
Both!
What is the 5 steps in a buddy check?
BWRAF.
B - BCD, W - Weights, R - Releases, A - Air, F - Final Check.
Name 2 types of Cartilaginous Fish.
Sharks, rays, skates.
How many hearts does a cuttlesfish have?
3. One heart entire body and two for each set of gills.
How to fish breathe?
Through their gills.
Do piranhas eat living animals?
No
What number is the naked dive?
Dive no. 100.
How are shark's young born?
The eggs hatch inside the mom before they are born.
What are baby sharks called?
Pups.
Do cartilaginous fish have a swim bladder?
No.
What are coelacanth's "legs" called?
Lobed fins.
Mention 2 search patterns used in diving?
U-pattern, circular, expanding square, jackstay, snag-line, grid, pendulum.
What is the largest cartilaginous fish?
The whale shark.
Name 3 features that all fish have.
Gills, vertebrates, swim in water, scales, cold blooded.
What happens when a great white shark loses a tooth?
Another takes its place like a conveyor belt.
What is the fastest fish in the Ocean?
The sailfish.
What are the 3 knots in the divemaster course called?
Bowline, Sheet Bend, Two Half Hitches.
How can you tell a shark from a ray?
Gills on a ray are underneath their bodies.
What kind of fish can swim backwards?
Eels.
What do lamprey's gills look like?
Holes called gill pores!
What kind of fish are flounders?
Flatfish!
Waterskills: 400 metres.
How fast do you have to swim to get 5 points.
Under 6.30 min.
Is a sawfish a ray or a shark?
It's a ray!
How many dorsal fins does a shark have?
Two!
Can any fish survive on land?
The hagfish can!