Influence of algal diets on biochemical composition and energy reserves in Patinopecten yessoensis (Jay) larvae

Whyte, J. N. C.; Bourne, N.; Hodgson, C.A.

doi:10.1016/0044-8486(89)90110-5

Cited by 119 publications

(41 citation statements)

References 25 publications

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“…nitrate limitation leads carbohydrate levels to double at the expense of protein [31,35]. Hence, a strong correlation exists between composition of microalgae and their measurable nutritional value -even though diets containing high levels of carbohydrates have been reported to produce the best growth of juvenile oysters [9] and larval scallops [36], as long as PUFAs are also present to adequate proportions. Conversely, high dietary protein provides maximum growth for juvenile mussels [15] and oysters [18].…”

Section: Nutritional Features Of Microalgaementioning

confidence: 99%

Nutritional Value and Uses of Microalgae in Aquaculture

Guedes¹,

Malcata²

2012

Aquaculture

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Section: Nutritional Features Of Microalgaementioning

confidence: 99%

Nutritional Value and Uses of Microalgae in Aquaculture

Guedes¹,

Malcata²

2012

Aquaculture

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“…The greatest reliance on stored energy reserves is in Stages 1 and 3. The energy for Stage 1 is provided to the embryo by the adult during vitellogenesis (Bayne et al 1975, Bayne 1976a, Whyte et al 1990, and for Stage 3 by feeding during the planktonic phase (Bayne 1972, 1976a, Whyte et al 1989, 1990.…”

Section: Introductionmentioning

confidence: 99%

Utilization of lipids during early development of the sea urchin Evechinus chloroticus

Sewell¹

2005

Mar. Ecol. Prog. Ser.

108

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Detailed studies of lipid utilization during bivalve development have shown that lipids are important at 2 critical periods: embryogenesis and metamorphosis. Using the Iatroscan TLC/FID system I examined lipid class utilization during development of Evechinus chloroticus to determine whether lipids were also important for an echinoderm at these times. Eggs of E. chloroticus contained 34.41 ng of lipid, primarily polar lipids (52.0%) and triglyceride (29.4%). To determine whether there was a different pattern of lipid utilization between larvae reared in the presence or absence of particulate food, larvae were either fed 6000 cells ml -1 Dunaliella every 2 d or starved. While there was no change in the amount of total, structural or energy storage lipids over time, there was a significant difference in the amount of structural lipids between Fed and Starved treatments. This was related to the continuing development of Fed larvae and cessation of development of Starved larvae at the 4-arm pluteus stage. In both treatments, triglycerides were rapidly utilized from the early 4-arm echinopluteus to the late 4-arm larva with fully developed arms and gut. Another neutral lipid, free fatty acid, accumulated in the 8-arm echinopluteus stage of the Fed larvae. This suggests that lipid stored during the planktonic phase, in combination with the proximate constituents of the larval body, provides the energy for the metamorphic and perimetamorphic periods in echinoderm development. Thus sea urchins, as in bivalves, appear to have 2 critical periods for lipid use during development.

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“…was the highest compared to the other four strains because they do not belong to Bacillariophyceae, which generally have lower carbohydrate content. However, this carbohydrate content makes them attractive for feeding oysters and scallops (Enright et al, 1986;Whyte et al, 1989). The feed control C. muelleri showed a low lipid percentage due to the stable culture conditions; outdoor cultivated microalgae had higher lipid percentages because under stress conditions the metabolism is oriented to over produce lipids (Courchesne et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Assessment of endemic microalgae as potential food for Artemia franciscana culture

Pacheco-Vega¹,

Cadena-Roa²,

Ascencio

et al. 2015

lajar

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ABSTRACT. In this study, five microalgal strains were isolated from Bahía de La Paz, Baja California Sur, Mexico and identified as Grammatophora sp., Navicula 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. Keywords: brine shrimp, arid zones, nutrition, microalgae, fatty acids, aquaculture. Evaluación del potencial de microalgas endémicas para el cultivo deArtemia franciscana RESUMEN. Se aislaron cinco cepas de microalgas de la Bahía de La Paz, Baja California Sur, Mexico, identificadas como Grammatophora sp., Navicula sp., Rhabdonema sp., Schizochytrium sp., and Nitzschia sp., y su evaluación como alimento potencial para Artemia franciscana. Las cepas algales fueron aisladas, purificadas y cultivadas al exterior. Chaetoceros muelleri fue cultivada en condiciones de laboratorio y utilizada como control. El análisis bioquímico y el perfil de ácidos grasos correspondientes al cuarto día de cultivo de las microalgas, se efectuó mediante cromatografía de gases. El experimento con Artemia franciscana se realizó al exterior por doce días en tanques de 15 L. Se realizaron muestreos al inicio y al final del trabajo para determinar el incremento en talla, peso seco y sobrevivencia. El tratamiento con la microalga identificada como Rhabdonema sp. mostró larvas con menor porcentaje de ácidos grasos polinsaturados (PUFAs) mientras que aquellas alimentadas con Grammatophora sp. presentaron la mayor proporción, superando a las del control Chaetoceros muelleri. Con Schizothyrium sp. no presentaron los ácidos grasos docosahexanoico (DHA) y eicosapentanoico (EPA). La sobrevivencia obtenida...

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Influence of algal diets on biochemical composition and energy reserves in Patinopecten yessoensis (Jay) larvae

Cited by 119 publications

References 25 publications

Nutritional Value and Uses of Microalgae in Aquaculture

Nutritional Value and Uses of Microalgae in Aquaculture

Utilization of lipids during early development of the sea urchin Evechinus chloroticus

Assessment of endemic microalgae as potential food for Artemia franciscana culture

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