Osteichthyes test-Salmon/Trout Flashcards
1
Q
What is the Genus and species of rainbow trout
A
Oncorhyncus mykiss
2
Q
What does Oncorhyncus mykiss mean?
A
“hooked” “nose”
3
Q
What is kelt?
A
spawning salmon
4
Q
What is anadromous
A
start in freshwater -> move to marine-> return to freshwater
5
Q
What is catadromous
A
marine -> freshwater -> marine
6
Q
They lay eggs in a nest which is called?
A
Redd
7
Q
What are their eggs like?
A
Eyed eggs
8
Q
What is smoltification?
A
stage where fish get their silver pigments & get used to salt water
9
Q
What is the migration of Salmon/Trout?
A
Anadromous
10
Q
What is the life cycle of Salmon?
A
- Adults migrates upstream
- Kelt - spawning salmon, female lays eggs in Redd and males fertilize it
- after spawning, kelts die
- eggs hatch into Alevins (carries yolk sac for food)
- Grow into Fry where they become more predator
- Parr - Fry develop into parr where they get stripes and spots for campo
- Smolt - Parr undergoes smoltification where they get silver pigments & get used to salt water
- Reach maturity into adult and cycle starts again
11
Q
What is the first stage of life cycle?
A
Adults migrate upstream
12
Q
The hooked snout of a fish is called?
A
Kype
13
Q
What is the migration of eel?
A
Catadromous
