Diversity of the fatty acid composition of Artemia spp. cysts from Argentinean populations

 

Autores
Ruiz, O.; Medina, G.R.; <div class="autor_fcen" id="1939">Cohen, R.G.</div>; Amat, F.; Navarro, J.C.
Tipo de recurso
artículo
Estado
Versión publicada
Año de publicación
2007
País
Argentina
Institución
Repositorio
Descripción
Nauplii of the branchiopod crustacean Artemia spp. are widely used as live food in aquaculture. Their nutritional value depends essentially on the fatty acid profile of their lipids, which can be very variable. Study of this variability (often species- and/or ecology-related) proposes interesting theoretical and applied questions. In the present study, cysts (dehydrated dormant eggs) from Argentinean Artemia spp. populations were analysed for their fatty acid profile. Most of the cyst samples analysed (n = 16) were obtained from Artemia persimilis populations, but 3 belonged to A. franciscana. Previous research indicated that A. persimilis populations are confined to inland biotopes, but in this study we report the presence of A. persimilis populations in coastal ecosystems. Cysts from all populations exhibited fatty acid profiles typical of either marine or freshwater, irrespective of the inland or coastal origin of their biotope. This study represents the first time that a significant amount of eicosapentaenoic acid (EPA, 20:5n-3) was detected in A. persimilis cyst samples. We hypothesize on some factors that presumably influence the fatty acid profiles of Artemia spp. cysts: (1) food resources from different habitats, which in turn can be influenced by environmental parameters, (2) the genetic make-up of each population, and/or (3) mechanisms of selective feeding. © Inter-Research 2007.
Idioma
inglés
OAI Identifier
3573542d-782b-44a2-b2fd-eb61bd043713/snrd:HASH01856da88bd1fa71ab702b2b
Enlace del recurso
http://digital.bl.fcen.uba.ar/Download/paper/paper_01718630_v335_n_p155_Ruiz.pdf
Nivel de acceso
Acceso abierto
Materia
Artemia
Brines
Fatty acids
Freshwater type
Inland waters
Ionic composition
Marine type
Salt lakes
biotope
coastal zone
concentration (composition)
crustacean
cyst
fatty acid
lipid
Argentina
South America
Artemia
Artemia franciscana
Artemia persimilis
Branchiopoda
Crustacea