International study on Artemia : 17. Energy consumption in cysts and early larval stages of various geographical strains of Artemia
Vanhaecke, P.; Lavens, P.; Sorgeloos, P. (1983). International study on Artemia : 17. Energy consumption in cysts and early larval stages of various geographical strains of Artemia. Ann. Soc. R. Zool. Bel. 113(2): 155-164
In: Annales de la Société Royale Zoologique de Belgique = Annalen van de Koninklijke Belgische Vereniging voor Dierkunde. Société Royale Zoologique de Belgique: Bruxelles. ISSN 0771-5528, more
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| Keywords |
Cysts
Energy budget
Larval stages
Artemia Leach, 1819 [WoRMS]
Marine/Coastal |
| Abstract |
Variations in dry weight, caloric content and ash content during cyst hatching and early larval development have been studied for various geographical strains of Artemia . In general, decapsulated cysts contain 30 to 40% more energy than freshly hatched nauplii; for Chaplin Lake and Buenos Aires Artemia this difference amounts to 57%. Ash contents increase as decapsulated cysts hatch into instar I and molt into instar II-III nauplii. Over a 24h larval developmental period individual dry weights and energy content of the nauplii decrease with 16-34% and 22-37% respectively.A small but significant correlation exists between the survival rate of starved nauplii and either the energy content of instar I and instar II-III nauplii or the proportional energy consumption during metabolism from decapsulated cysts to instar II-III nauplii. The potential impact of these results on the use of Artemia in aquaculture hatcheries is discussed. |
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