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21. Sea water the world´s biggest habitat - Breeding brine shrimps ("Salina")

Brine shrimps (Artemia salina) are living in salt lakes like Great Salt Lake (Utah, USA) and Ras Muhamad (Sinai, Egypt). In order to have food for small fishes these shrimps are breeded from eggs available in pet shops together with a special salt (Photo 1). In the next experiment you will make salt water of the right concentration and add these eggs.
Material
Artemia eggs, Artemia salt, 5 high ampoules (5 ml), 2 syringes (1 ml and 5 ml), Scale, 200-mg paper weights, small funnel (D 4 cm), diagonally cut drinking straw spatula.
Experiment
1. Weigh 200 mg of Artemia salt.
2. Use a funnel to transfer it into an ampoule (Photo 2).
3. Dissolve the salt in 5 ml tap water.
4. Distribute the salt water to 5 ampoules evenly.
5. Use the drinking straw spatula to transfer about 50 eggs to each ampoule.
6. Bring the ampoules into a horizontal position (Photo 3). In order mix the water with air roll the ampoules with your flat hand from time to time.
Observation
After a few days tiny white larvae swim between the black eggs (Photo 4: 3 larvae in front of 3N>).
You can pour them into an aquarium as food for small fishes. If you want to let them grow you have to supply them with food and with more space. For more information go for a pet shop and look for http://www.google.com/search?hl=en&q=artemia+culture&aq=2&oq=artemia.
Explanation
The eggs contain sufficient food and materials for the larva to grow. Finally they are able to open the egg shell and start swimming and search for food. In order to grow up and form males and females of different shape (Photo left down) they need suitable food in the right quantity.