Assessment of endemic microalgae as potential food for Artemia franciscana culture

In 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 c...

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Autores principales:	Pacheco-Vega,Juan M, Cadena-Roa,Marco A, Ascencio,Felipe, Rangel-Dávalos,Carlos, Rojas-Contreras,Maurilia
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2015
Materias:	brine shrimp arid zones nutrition microalgae fatty acids aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000100003
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spelling	oai:scielo:S0718-560X20150001000032015-04-15Assessment of endemic microalgae as potential food for Artemia franciscana culturePacheco-Vega,Juan MCadena-Roa,Marco AAscencio,FelipeRangel-Dávalos,CarlosRojas-Contreras,Maurilia brine shrimp arid zones nutrition microalgae fatty acids aquaculture In 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.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.43 n.1 20152015-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000100003en10.3856/vol43-issue1-fulltext-3
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	brine shrimp arid zones nutrition microalgae fatty acids aquaculture
spellingShingle	brine shrimp arid zones nutrition microalgae fatty acids aquaculture Pacheco-Vega,Juan M Cadena-Roa,Marco A Ascencio,Felipe Rangel-Dávalos,Carlos Rojas-Contreras,Maurilia Assessment of endemic microalgae as potential food for Artemia franciscana culture
description	In 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.
author	Pacheco-Vega,Juan M Cadena-Roa,Marco A Ascencio,Felipe Rangel-Dávalos,Carlos Rojas-Contreras,Maurilia
author_facet	Pacheco-Vega,Juan M Cadena-Roa,Marco A Ascencio,Felipe Rangel-Dávalos,Carlos Rojas-Contreras,Maurilia
author_sort	Pacheco-Vega,Juan M
title	Assessment of endemic microalgae as potential food for Artemia franciscana culture
title_short	Assessment of endemic microalgae as potential food for Artemia franciscana culture
title_full	Assessment of endemic microalgae as potential food for Artemia franciscana culture
title_fullStr	Assessment of endemic microalgae as potential food for Artemia franciscana culture
title_full_unstemmed	Assessment of endemic microalgae as potential food for Artemia franciscana culture
title_sort	assessment of endemic microalgae as potential food for artemia franciscana culture
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2015000100003
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Assessment of endemic microalgae as potential food for Artemia franciscana culture

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