Artemia size? An important question that needs to be answered before feeding fish larvae. Only by using the right live food an optimal survival rate during rearing can be achieved. We help you determine the nauplii size!
Based on worldwide scientific research we have compiled biometric data on the most important Artemia species for you. The following table shows the average length and average dry weight of the nauplii right after hatching as well as the average diameter of the cysts.
| Species | Synonym | Origin | Nauplii length [µm] | Dry weight [µg/nauplius] | Hydrated cyst diameter [µm] |
|---|---|---|---|---|---|
| Artemia franciscana | AF430, microcysts | San Francisco Bay, USA | 428 | 1.63 | 225 |
| Artemia franciscana | San Pablo Bay, USA | 433 | 1.92 | 236 | |
| Artemia franciscana | Macau, Brazil | 429 | 1.68 | 228 | |
| Artemia franciscana | Macau, Brazil | 447 | 1.74 | 229 | |
| Artemia franciscana | Barotac Nuevo, Philippines | 429 | 1.68 | 228 | |
| Artemia franciscana | GSL | Great Salt Lake, USA | 486 | 2.42 | 244 |
| Artemia franciscana | Shark Bay, Australia | 458 | 2.47 | 260 | |
| Artemia franciscana | Bahia Salinas, Puerto Rico | 452 | 2.10 | 254 | |
| Artemia franciscana | Galerazamba, Colombia | 480 | 2.27 | 250 | |
| Artemia franciscana | Chaplin Lake, Canada | 475 | 2.04 | – | |
| Artemia parthenogenetica | Aibi Lake, China | 515 | 4.55 | – | |
| Artemia parthenogenetica | Margherita di Savoia, Italy | 517 | 3.33 | 285 | |
| Artemia persimilis | Buenos Aires, Argentina | 431 | 1.72 | 238 | |
| Artemia salina | Sabkhet Sijoumi, Tunisia | 437 | – | 261 | |
| Artemia sinica | Yuncheng, China | 460 | 2.03 | – | |
| Artemia tibetiana | Lagkor Lake, Tibet | 667 | – | 330 | |
| Artemia urmiana | Lake Urmia, Iran | 497 | – | – |
Biometric Data of Artemia Nauplii and Cysts [1][2][3][4][5][6]
Size of the nauplii can vary significantly, depending on the species. Even within the same species nauplii size may vary, depending on which salt lake the line originated from [6]. The species most commonly used for commercial purposes is Artemia franciscana, which originally came from North America, but has been distributed worldwide by humans [3].
A subspecies of Artemia franciscana produces the smallest known Artemia nauplii, with an average length of 428 µm [6]. The eggs are also known by the synonym AF430 and are originally from San Francisco Bay in California. Those microcysts are commonly used in aquaculture, but also in seawater aquariums. Due to their small size AF430 nauplii are particularly suitable for small fish larvae like clownfish or yellowtail kingfish.
Artemia franciscana from the Great Salt Lake in Utah, commonly known as GSL, is even wider used commercially [7] . These are slightly larger with an average size of 486 µm [6].
With a length of 667 µm the largest Artemia nauplii are produced by the species Artemia tibetiana [1]. This species prefers cold water and is difficult to procure.
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1. ↑↑Abatzopoulos, T., J., Zhang, B., Sorgeloos, P., 1998. Artemia tibetiana: preliminary characterization of a new Artemia species found in Tibet. International Study on Artemia. LIX. International Journal of Salt Lake Research 7: 41-44.
2. ↑
Dhont, J., Van Stappen, G., 2003. Biology, Tank Production and Nutritional Value of Artemia. In: Stottrup J.G., McEvoy L.A. (Ed.). Live feeds in marine aquaculture. Blackwell Publishing Ltd, Oxford: 76-77.
3. ↑↑Munoz, J., Pacios, F., 2010. Global Biodiversity and geographical Distribution of diapausing aquatic Invertebrates: The Case of the cosmopolitan Brine Shrimp: Artemia (Branchiopoda, Anostraca). Crustaceana 83 (4): 465-480.
4. ↑
Naceur, H., B., Jenhani, A., B., R., El Cafsi, M., Romdhane, M. S., 2008. Determination of biological characteristics of Artemia salina (Crustacea: Anostraca) population from Sabkhet Sijoumi (NE Tunisia). Transitional Waters Bulletin 3: 65-74.
5. ↑
Vanhaecke, P., Tackaert, W., Soorgeloos, P., 1987. The biogeography of Artemia: an updated review. Artemia Research and its Applications Vol.1: 380p.
6. ↑↑↑↑Vanhaecke, P., Sorgeloos, P., 1980. International Study on Artemia IV. The biometrics of Artemia strains from different geographical origin. The Brine Shrimp Artemia Vol. 3: 456p.
7. ↑
Lavens, P. & Sorgeloos, P., 1996. Manual on the Production and Use of Live Food for Aquaculture. FAO Technical Paper No.361: 79-80
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