1
Q
How many eggs do groupers spawn?
A
1 million
2
Q
What is a SPAG?
A
Spawning Aggregation Sites
3
Q
How is spawning triggered?
A
by phases of moon and seasons
4
Q
Explain the eggs to spawning stage
A
- A female will begin to swim towards surface and many males will surround her
- As she releases her eggs, the males will release sperm
5
Q
How long does it take for eggs to hatch?
A
24 hours
6
Q
How long does the larva stage last?
A
80 days
7
Q
What do larva have
A
yolk sacs and long spines to deter predators
8
Q
Explain the postlarva stage
A
- Postlarva grouper move to sheltered areas of mangroves or seagrass beds.
- Growth for 5 years
9
Q
Explain the adult stage
A
- Move to deeper waters and reefs
- Live for 40 - 100+ years
Mr. McGill A2
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