Chapter 1 Flashcards
1
Q
5 things that define a fish
A
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
2
Q
rover-predators characteristics
A
- streamlined
- pointed heads
- terminal mouths
- narrow caudal peduncles
- forked tails
3
Q
lie-in-wait predators characteristics
A
- ambushers
- elongate
- streamlined
- flattened heads
- large, well-toothed mouths
- large caudal fin
- posteriorly placed anal and dorsal fins
4
Q
examples of rover-predators
A
salmonidae, tunas/mackerels, billfishes, mackrel sharks
5
Q
examples of lie-in-wait predators
A
gars, pikes, barracudas, needlefishes and sauries
6
Q
surface oriented fishes
A
- small fishes
- dorsally directed mouths
- flattened heads
- large dorsally directed eyes
7
Q
surface oriented fishes examples
A
mosquitofishes, topminnows, killifishes, halfbeaks, flyingfishes
