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Author : Deepak
Article ID : 24
Audience : Default
Version 1.00.02
Published Date: 2011/3/3 20:40:00
Reads : 6230
Aquarium Basics

What is Artemia?
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Artemia is a small shrimp like crustacean measuring 10 - 12 mm (1 cm) in length. It lives in high saline water bodies like salt lakes, lagoons and man-made solar salt works and therefore popularly known as "Brine Shrimp". It takes only 15 days from the new born to grow adult size. The female adult Artemia releases 200 to 300 encysted embryos also called cysts (eggs) once in every 5 days in the form of spherical brown particles which floats and concentrated at the edges and corners of ponds.

These Cysts can be kept viable for many years and can be easily hatched by immersing in seawater. Therefore it considered as an “off the shelf”, “on demand” product.

Why Artemia?

Adult Artemia and the newborn larva have high protein content (60%). They have essential Highly Unsaturated Fatty Acids (HUFA) and amino acids. In addition, the adults have adequate amounts of Vitamins and Carotenoids, essential for most fish and shrimp species. Permanent and easy availability of Artemia cysts, simple hatching procedures, small size, slow swimming behaviour and softness of body tissue make brine shrimp Artemia very popular among ornamental fish breeders and aquaculture fish farmers who find it most convenient and profitable in growing young fish fry and the juveniles of shrimps and lobsters.

The exoskeleton of Artemia (1 micron thickness) facilitates easy digestion of the whole animal by the predators. Artemia larvae are easier in availability than rotifers, daphnia and tubifex and by far better than micro diets especially on water quality in rearing tanks.

Advantages of feeding Artemia to Aquarium to Aquarium Fishes: It has been scientifically proved that feeding ornamental fishes with Artemia larvae and adults induces faster growth, resistant to diseases, increases the survival rate improves the pigmentation and of boosts the vigor. It also increases the fecundity of the fish.

Decapsulated Cysts: The outer shell of Artemia cysts is covered with bacteria and there is a strong possibility of introducing infections in the fish and crustacean cultures after the introduction of nauplii with empty cysts.
The chorion (outer coating of the eggs) can be removed with chemical treatment. This process is called decapsulation which does not harm the embryos or affects the hatchability of the cysts.

Advantages of Decapsulation:
-- Disinfection of Cysts
-- Easy separation of new born larvae
-- Can be directly fed to fishes without hatching
-- High energy contect (50% more) than new born larvae
-- Decapsulated cysts can be treated in the same way as ordinary eggs/cysts

Reference: TutyFishes

Good Luck


Disclaimer: The above article is based on few scanned pages of information that I got from a friend however I am unable to find out the actual book name. If you know the book or the magazine, please post the reference, I will be very glad to give the credit to the actual author.

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Author Thread
Published: 2011/3/6 12:39  Updated: 2011/3/6 12:39
Not too shy to talk
Joined: 2011/3/5
From: berhampur
Comments: 27
 Re: Artemia – an excellent fish food
sri that cannot be said to be as sea water coz the Specific gravity of sea water is 1.024 which will damage the arterima cysts....the water should have a Specific gravity of 1.018

Author Thread
Published: 2011/5/7 0:52  Updated: 2011/5/7 0:52
Just popping in
Joined: 2011/5/7
From: Pasadena, CA
Comments: 3
 Re: Artemia – an excellent fish food
Thanks for making me understand what Artemia is all about. I need to understand more.. Thanks.

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