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dc.creatorPacheco-Vega,Juan M
dc.creatorCadena-Roa,Marco A
dc.creatorAscencio,Felipe
dc.creatorRangel-Dávalos,Carlos
dc.creatorRojas-Contreras,Maurilia
dc.date2015-03-01
dc.date.accessioned2019-05-03T13:27:42Z
dc.date.available2019-05-03T13:27:42Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000100003
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/88054
dc.descriptionIn this study, five microalgal strains were isolated from Bahía de La Paz, Baja California Sur, Mexico and identified as Grammatophora sp., Navícula sp., Rhabdonema sp., Schizochytrium sp., and Nitzschia sp., and their evaluation as potential food for Artemia franciscana. The isolated strains were cultured outdoors and harvested after four days. Chaetoceros muelleri was cultured under laboratory conditions and used as control. The protein, lipid, and carbohydrate composition and the fatty acid profiles of the strains were determined by gas chromatography. To assess the effect of microalgal strains on A. franciscana, decapsulated cysts were cultured at outdoor conditions in 15 L containers. The experiment was conducted for twelve days. Samples from the five different feeding treatments were taken at the beginning and end of the experiment to assess number, size, and weight of Artemia larvae. Treatment with Rhabdonema sp. showed larvae with a lower percentage of polyunsaturated fatty acids (PUFAs) while Grammatophora sp. showed those with the greatest PUFA proportion, even more than those fed Chaetoceros muelleri (control). Larvae consuming Schizochytrium sp. had no docosahexanoic (DHA) nor eicosapentaenoic (EPA) fatty acid content. Growth and survival of A. franciscana did not show significant differences among feed treatments, except when it was fed Nitzschia sp., showing lower survival and dry weight. Treatment based on Schizochytrium sp. and Rhabdonema sp. had a greater A. franciscana size but reduced dry weight; additional tests including two or more algal species for every treatment should be carried out to determine the best yield.
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dc.languageen
dc.publisherPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
dc.relation10.3856/vol43-issue1-fulltext-3
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceLatin american journal of aquatic research v.43 n.1 2015
dc.subjectbrine shrimp
dc.subjectarid zones
dc.subjectnutrition
dc.subjectmicroalgae
dc.subjectfatty acids
dc.subjectaquaculture
dc.titleAssessment of endemic microalgae as potential food for Artemia franciscana culture


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