Chapter 1

Question 1

5 things that define a fish

Answer 1

1) most always aquatic
2) must always cold-blooded
3) most always gill-breathing
4) craniates, and most always vertebrates
5) fins are usually developed, never pentadactyl limbs

Question 2

rover-predators characteristics

Answer 2

• streamlined
• pointed heads
• terminal mouths
• narrow caudal peduncles
• forked tails

Question 3

lie-in-wait predators characteristics

Answer 3

• ambushers
• elongate
• streamlined
• flattened heads
• large, well-toothed mouths
• large caudal fin
• posteriorly placed anal and dorsal fins

Question 4

examples of rover-predators

Answer 4

salmonidae, tunas/mackerels, billfishes, mackrel sharks

Question 5

examples of lie-in-wait predators

Answer 5

gars, pikes, barracudas, needlefishes and sauries

Question 6

surface oriented fishes

Answer 6

• small fishes
• dorsally directed mouths
• flattened heads
• large dorsally directed eyes

Question 7

surface oriented fishes examples

Answer 7

mosquitofishes, topminnows, killifishes, halfbeaks, flyingfishes