Why light is required for artemia cysts hatching process?
To initiate embryonic development, water temperature
Give 2 types of reproduction for artemia
Oviparous (cysts), Ovoviviparous (nauplius)
Give 4 parameters that need to monitor for Daphnia culture.
Temperature, pH, oxygen, ammonia
Can artemia used as first feeding to the fish larvae?
No. Rotifer then followed by artemia.
Give 2 types of method to culture Daphnia.
Outdoor pond, tank
Artemia population is from sea. True or false?
Inland saltwater lake.
How to differentiate male and female artemia?
Male: clasper, female: brood sac.
What is enrichment process?
Enrich the live feed with higher nutritional value
What is decapsulation?
A process of remove the hard egg shell that covers Artemia cyst.
Give 2 problems encountered with artemia culture
Slow growth - temperature, salinity, pH, food; culture crashing - oxygen, health
Give 4 parameters of artemia culture
Temperature, salinity, aeration (oxygen), pH, light
Name the organism in this picture.
Moina
What is the problem associated with Daphnia culture?
Contamination of rotifer - sieve or oxygen level to remove the rotifer
How to harvest Daphnia?
Sieve, plankton net