Supplementation of EPA and DHA emulsions to a Dunaliella tertiolecta diet: effect on growth and lipid composition of scallop larvae, Argopecten purpuratus (Lamarck, 1819)

Nevejan, Nancy; Saez, Iris; Gajardo, Gonzalo; Sorgeloos, Patrick

doi:10.1016/s0044-8486(02)00585-9

Cited by 47 publications

(24 citation statements)

References 37 publications

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“…The lipid content of the diet is important to larval development, but EFAs appear to be a limiting factor. High lipid diets fed to larval A. purpuratus (Nevejan et al. 2003b) and P. maximus (Delaunay et al.…”

Section: Resultsmentioning

confidence: 99%

“…The lipid content of the diet is important to larval development, but EFAs appear to be a limiting factor. High lipid diets fed to larval A. purpuratus (Nevejan et al 2003b) and P. maximus (Delaunay et al 1993) both resulted in poor growth when EPA and DHA were absent. Similarly, found that increasing DHA levels in T. pseudonana from 1.1 to 3.1% of TFA improved the growth of larval C. gigas.…”

Section: Feed Ration (Proteins Carbohydrates Lipids and Essential Fmentioning

confidence: 99%

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Effects of nutrition on larval growth and survival in bivalves

Marshall

McKinley

Pearce

2010

Reviews in Aquaculture

121

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This review examines the nutritional factors that influence the growth and survival of larval bivalves. Factors considered include feed form (live phytoplankton, preserved phytoplankton and artificial feeds) and feed biochemical composition (protein, lipid, carbohydrate and essential fatty acids). These factors, as they relate to larval production, are discussed in terms of growth and survival rates. To facilitate comparisons among larval studies, growth rates and feeding rates are standardized to common units. In addition, the standardized results for larvae of the Pacific oyster (Crassostrea gigas Thunberg) are analysed using linear regression techniques to determine the strength of the correlations between daily doses of biochemical feed components and daily growth rates. Piecewise linear spline modelling is used to determine maximum effective dose response, the point where feeding additional biochemical components to the larvae yields no significant improvements in growth. Derived from these analyses are suggested daily rations of lipid, protein, carbohydrate, eicosapentanoic acid, docosahexanoic acid and energy for larvae of C. gigas.

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Section: Resultsmentioning

confidence: 99%

Section: Feed Ration (Proteins Carbohydrates Lipids and Essential Fmentioning

confidence: 99%

Effects of nutrition on larval growth and survival in bivalves

Marshall

McKinley

Pearce

2010

Reviews in Aquaculture

121

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“…fornicata exogenous feeding is not likely because (1) the intracapsular fluid and capsular wall only contain low amounts of lipids in many gastropod species, including calyptraeids ( [89-91], Table S1), and (2) feeding on extracapsular organic matter is not likely [35]. In addition, molluscs have a limited capacity to elongate or desaturate the PUFA 18:2ω6, 18:3ω3, 20:4ω6, 20:5ω3 and 22:6ω3 [23,26,29,92-94], suggesting that de novo synthesis is not likely.…”

Section: Discussionmentioning

confidence: 99%

Seasonal Variations in Maternal Provisioning of Crepidula fornicata (Gastropoda): Fatty Acid Composition of Females, Embryos and Larvae

et al. 2013

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Recruitment success of marine invertebrate populations not only depends on the number of recruits but also on their quality which affects their survival. In species characterized by a mixed development (encapsulated embryonic development and release of planktotrophic larvae), the offspring quality depends on both maternal provisioning and larval feeding. Here, we investigated potential changes of maternal provisioning over the whole reproductive period in a gastropod with a mixed development: Crepidula fornicata . In its introduction area, C . fornicata reproduces from February to October, which implies that both adults and larvae are exposed to different food availabilities. Maternal provisioning was assessed by measuring the fatty acid (FA) composition of females, encapsulated embryos and larvae, in February, May, July and September 2009. FA are essential resources for the development of embryos and larvae, and are key biomarkers of offspring quality. Our results showed differences in FA composition between muscles, visceral masses, and encapsulated embryos. In particular, FA composition of embryos was similar to that of the visceral mass. Seasonal variations in FA composition were observed: in the middle of the reproductive season (May and July), female tissues and embryos showed a higher proportion of polyunsaturated fatty acids and especially ω3, as compared to the beginning and end of the reproductive season (February and September). This showed that through maternal provisioning the quality of C . fornicata offspring was higher in the middle of the reproductive season. Whether this would result in an increase of recruitment success and juvenile performance would require further investigations.

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“…These previous studies were conducted using radiolabelled fatty-acid precursors. Other studies using descriptive approaches suggested some capabilities to elongate and desaturate polyunsaturated fatty acids (PUFA) for EFA synthesis [10,11], but these remain to be confirmed. To our knowledge, no study had demonstrated in vivo EFA synthesis definitively in bivalve larvae.…”

Section: Introductionmentioning

confidence: 99%

Essential Fatty Acid Assimilation and Synthesis in Larvae of the Bivalve Crassostrea gigas

Costa

Robert

Quéré

et al. 2015

Lipids

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Essential fatty acids (EFA) are important for bivalve larval survival and growth. The purpose of this study was to quantitatively assess for the first time through a mass-balance approach dietary EFA incorporation and synthesis within Crassostrea gigas larvae. A first experiment was carried out using two microalgae, Tisochrysis lutea (T) and Chaetoceros neogracile (Cg), as mono- and bi-specific diets. A second experiment using a similar design was performed to confirm and extend the results obtained in the first. Flow-through larval rearing was used for accurate control of food supply and measurement of ingestion. Non-methylene-interrupted fatty acids were synthetized from precursors supplied in the diet: 16:1n-7 and 18:1n-9, mediated by Δ5 desaturase. Moreover, this Δ5 desaturase presumably allowed larvae to convert 20:3n-6 and 20:4n-3 to 20:4n-6 and 20:5n-3, respectively, when the product EFA were poorly or not supplied in the diet, as when larvae were fed T exclusively. Under our experimental conditions, none of the diets induced 22:6n-3 synthesis; however, 22:6n-3 incorporation into larval tissues occurred selectively under non-limiting dietary supply to maintain optimal levels in the larvae. This combination of flow-through larval rearing and biochemical analysis of FA levels could be applied to additional dietary experiments to precisely define optimal levels of EFA supply.

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Supplementation of EPA and DHA emulsions to a Dunaliella tertiolecta diet: effect on growth and lipid composition of scallop larvae, Argopecten purpuratus (Lamarck, 1819)

Cited by 47 publications

References 37 publications

Effects of nutrition on larval growth and survival in bivalves

Effects of nutrition on larval growth and survival in bivalves

Seasonal Variations in Maternal Provisioning of Crepidula fornicata (Gastropoda): Fatty Acid Composition of Females, Embryos and Larvae

Essential Fatty Acid Assimilation and Synthesis in Larvae of the Bivalve Crassostrea gigas

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