Comparative Analysis of Mono and Combined Microalgal Diets on Growth Parameters of Salmacis bicolor Larvae

Krishnan, Muthukalingan; Rajasree, S.R. Radhika; Aranganathan, L.; Karthih, M.G.

doi:10.1007/s41208-020-00241-9

Cited by 1 publication

(4 citation statements)

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“…Moreover, the FA present in microalgae play an important role in sea urchins' larval development (Cárcamo et al, 2005). The FA profile of the microalgae cultures used in this study was comparable with those reported previously for Rho (Fernández‐Reiriz et al, 1989; Pinto, 2018; Schiopu et al, 2006; Volkman et al, 1989), Chae (Krishnan et al, 2020; Méndez‐Martínez et al, 2018) and Duna (Carboni et al, 2012; Liu et al, 2007a), with Chae presenting the lowest DHA/EPA ratio and the highest n − 3/ n − 6 ratio and Rho presenting the highest EPA/ARA ratio.…”

Section: Discussionsupporting

confidence: 88%

“…Similar results were also observed in Salmacis bicolor (Krishnan et al, 2020), Strongylocentrotus nudus (A. Agassiz, 1864) (Qi et al, 2018) and…”

Section: Discussionsupporting

confidence: 81%

“…Chae (Krishnan et al, 2020;Méndez-Martínez et al, 2018) and Duna (Carboni et al, 2012;Liu et al, 2007a), with Chae presenting the lowest DHA/EPA ratio and the highest n − 3/n − 6 ratio and Rho presenting the highest EPA/ARA ratio.…”

Section: Discussionmentioning

confidence: 99%

“…Numerous microalgae species have been tested as feed for P. lividus larvae with highly variable results in terms of survival (0% to 85%) and age-at-competence (10 to 29 days) (Carboni et al, 2012;Gomes et al, 2021;Liu et al, 2007a for a review). Several studies attempted to correlate the nutritional value of microalgae with sea urchin larvae biochemical profile (Carboni et al, 2012;Castilla-Gavilán et al, 2018;Krishnan et al, 2020;Liu et al, 2007aLiu et al, , 2007bSchiopu et al, 2006). However, only a few analysed the reciprocal relationship of fatty acids (FA) profile between P. lividus larvae and its diet.…”

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confidence: 99%

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High dietary protein, n − 3/ n − 6 ratio and β ‐carotene enhances Paracentrotus lividus (Lamarck, 1816) larval development

Gomes

Lourenço

Santos

et al. 2022

Aquaculture Research

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The nutritional characteristics of microalgae affect the growth, survival and fatty acid composition of sea urchin larvae. This study aimed to evaluate the influence of nutritive characteristics of single microalgal diets in Paracentrotus lividus (Lamarck, 1816) larval development, growth, and condition. Larvae of P. lividus were fed with three monospecific microalgal diets, Rhodomonas sp. (Rho), Dunaliella tertiolecta (Duna) and the diatom Chaetoceros calcitrans (Chae), and their development and growth were analysed until competence. Additionally, the fatty acid (FA) profile of larvae was analysed at competence and compared with the FA profile of the correspondent diet. The three groups of larvae attained competence simultaneously with differences in growth performance. The larvae fed with Chae attained the largest stomach and the shortest post‐oral arm. The larvae were able to accumulate long‐chain polyunsaturated fatty acids (PUFA), such as docosahexaenoic (DHA, C22:6n − 3), eicosapentaenoic (EPA, C20:5n − 3) and arachidonic (ARA, C20:4n − 6) acids, either by assimilation and retention of dietary FA or by the synthesis from α‐linolenic acid (ALA, C18:3n − 3) and linoleic acid (LA, C18:2n − 6). Furthermore, the low DHA/EPA ratio and high EPA/ARA and n − 3/n − 6 ratios of Rho and Chae and the high levels of the β‐carotene present in Chae improved larval growth and development. In conclusion, the results indicated that of the three microalgal diets tested, C. calcitrans provided important nutritional characteristics, especially in terms of FA composition and carotenoids, improving P. lividus larval growth and condition.

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