Effects of dietary microalgae on growth, survival and fatty acid composition of sea urchin Paracentrotus lividus throughout larval development
作者： Stefano Carboni , Julien Vignier , Mariachiara Chiantore , Douglas R. Tocher , Herve Migaud
DOI: 10.1016/J.AQUACULTURE.2011.10.037
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摘要: article i nfo This study investigated the growth, survival and fatty acid composition of sea urchin Paracentrotus lividus lar- vae fed four microalgal diets: Cricosphaera elongata, Pleurochrysis carterae, Tetraselmis suecica Dunaliella tertiolecta (control). Larvae were successfully raised to competence for metamorphosis when C. P. carterae D. diets but significant differences found in rate development. elongata showed 3 times higher 20% faster development than larvae other two microalgae that supported In contrast, T. failed fully support devel- opment stalled at arms stage more 30 days. The could accumulate long-chain polyunsaturated acids (LC-PUFA) such as docosahexaenoate (DHA; 22:6n-3), eicosapen- taenoate (EPA; 20:5n-3) arachidonate (ARA; 20:4n-6), either by assimilation retention dietary acids, and/or synthesis from α-linolenic 18:3n-3 linoleic 18:2n-6. Moreover, an accumu- lation n-3 LC-PUFA EPA/DHA EPA/ARA ratios appeared be associated with improved val performance. results indicate live species, appropriate profiles are able improve larval performance, ultimately increasing hatchery profitability.
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