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