Artemia substitution

ARTEMIA SUBSTITUTION

From : michel.autrand@wanadoo.fr
To: shrimp@yahogroups.com
Sent: 25 September 2001

QUESTION:

I’m looking for information (articles, addresses of providers) about Artemia substitution (mainly for shrimp nursery)

Michel Autrand

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COMMENTS 1 :

Our company, Desert Lake Technologies, LLC, is harvesting Daphnia pulicaria from Klamath Lake as an Artemia supplement/replacement. These zooplankton come from a fresh water lake and have a nutritional profile very similar to Artemia. They are 0.5 mm to 2 mm in size. They have been screened for virus that effect Penaeid culture and are clean. You can view the nutritional profile and additional information by visiting our website at: http://www.desertlake.com. The Daphnia come in 25 lb frozen plastic pails and 1 kg flatpak frozen. We also have 100% Daphnia flakes that are dried on our Refractance Window dryers....these yield a higher quality product than either freeze-drying, spray-drying or drum drying.

Howard W. Newman

Desert Lake Technologies, LLC
12750 Keno Worden Road
Keno, OR 97627, USA
Tele: 541-885-6947
Fax: 541-885-9993
e-mail: hwnewman@desertlake.com or
bshrimp@aol.com
URL: http://www.desertlake.com or
http://www.rossha.com

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COMMENTS 2:

There are a number of alternatives to live Artemia in nursery; several newly available zooplankton are in the market; mainly from cold area, saline or freshwater lakes.
The AFA Daphnia from DLT (Howard Newman's mail) are applicable to nursery as well as maturation. The combination of animal and phytonutrients into one single freshfeed is an interesting nutritional approach and apparently is showing some results according to the hatcheries I am following.

Frozen artemia biomass is available; several sources exist at all prices.

Cyclop-Eeze from Argent can be used but according to my experience with some caution as it can create a kind of "frenzy" between the larvae and trigger cannibalism. The food is very good but has to be well dosed. All these are fresh feeds; because they are inert require some care and multiple feeding of small quantities during the day.

I remember reading about a plankton called Crystal-Lake; I think distributed by Aqua-Fauna BioMarine but I have no experience of production with it.

Another alternative I would consider if you can apply enough aeration in a V shape raceway would be decapsulated Artemia; not decapsulated at the hatchery out of low grade or unhatched Artemia but directly from a manufacturer. Several providers are available.

Finally, for sure the use of growth substrates such as the Aquamatts
(Meridian Aquaculture) would be a wise choice at this stage. Late PL’s are more benthonics and a well grown medium with benthonic algae and epibionts would do a great source of live food for the nursery.

Eric Pinon

e-mail: epinon@ecua.net.ec

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