| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Influence of one selected Tisochrysis lutea strain rich in lipids on Crassostrea gigas larval development and biochemical composition
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| Autores: |
Da Costa, F.
Petton, Bruno
Mingant, Christian
Bougaran, Gael
Rouxel, Catherine
Quere, Claudie
Wikfors, G. H.
Soudant, P.
Robert, Rene
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| Data: |
2016-08
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| Ano: |
2016
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| Palavras-chave: |
Larvae
Lipids
Oyster
Tisochrysis lutea
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| Resumo: |
Effects of a remarkably high overall lipid Tisochrysis lutea strain (T+) upon gross biochemical composition, fatty acid (FA), sterol and lipid class composition of Crassostrea gigas larvae were evaluated and compared with a normal strain of Tisochrysis lutea (T) and the diatom Chaetoceros neogracile (Cg). In a first experiment, the influence of different single diets (T, T+ and Cg) and a bispecific diet (TCg) was studied, whereas, effects of monospecific diets (T and T+) and bispecific diets (TCg and T+Cg) were evaluated in a second experiment. The strain T+ was very rich in triglycerides (TAG: 93–95% of total neutral lipids), saturated FA (45%), monounsaturated FA (31–33%) and total fatty acids (4.0–4.7 pg cell−1). Larval oyster survival and growth rate were positively correlated with 18:1n-7 and 20:1n-7, in storage lipids (SL), and negatively related to 14:0, 18:1n-9, 20:1n-9, 20:4n-6 and trans-22-dehydrocholesterol in membrane lipids (ML). Surprisingly, only the essential fatty acid 20:5n-3 in SL was correlated positively with larval survival. Correlations suggest that physiological disruption by overabundance of TAG, FFA and certain fatty acids in larvae fed T+ was largely responsible for the poor performance of these larvae. ‘High-lipid’ strains of microalgae, without regard to qualitative lipid composition, do not always improve bivalve larval performance.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00251/36258/36063.pdf
DOI:10.1111/anu.12301
https://archimer.ifremer.fr/doc/00251/36258/
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| Editor: |
Wiley-blackwell
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| Relação: |
info:eu-repo/grantAgreement/EC/FP7/245119/EU//REPROSEED
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| Formato: |
application/pdf
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| Fonte: |
Aquaculture Nutrition (1353-5773) (Wiley-blackwell), 2016-08 , Vol. 22 , N. 4 , P. 813-836
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| Direitos: |
2015 John Wiley & Sons Ltd
info:eu-repo/semantics/openAccess
restricted use
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