caa a22 4500 605464545 CHVBK 20210128100258.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10499-014-9852-9 doi (NATIONALLICENCE)springer-10.1007/s10499-014-9852-9 Selected nutrient profiles in first larvae and postlarvae of American lobster ( Homarus americanus ) [Elektronische Daten] [Rémy Haché, Claude Pelletier, André Dumas] Initiatives to enhance natural stock of lobster imply the production of high-quality postlarvae. The aim of this study was to evaluate the physiological condition of postlarvae produced under hatchery conditions by comparing the nutrient profiles of larvae stage I and postlarvae stage IV of American lobster (Homarus americanus) fed frozen adult Artemia with a mixture of dry commercial products. Body sterols, acetone mobile polar lipids and phospholipids levels were lower in stage IV than in stage I, while cholesterol was nearly 400% higher in the former. The C20 mono-unsaturated acids and C22 n-3 decreased between stage I and IV in both neutral and polar lipids, while linoleic (18:2n-6 cis) and linolenic (18:3n-3) acids increased concomitantly. The levels of docosahexaenoic acid (DHA) in the polar fraction were twice lower in postlarvae compared to stage I larvae and almost completely depleted in the neutral fraction while eicosapentaenoic acid levels were reduced by nearly 30% in the polar lipids and by over 70% in the neutral lipids. Results suggested possible dietary phospholipids and DHA deficiencies that lead to the low levels observed in the postlarvae stage IV. Springer International Publishing Switzerland, 2014 Lobster nationallicence Homarus americanus nationallicence Larvae nationallicence Postlarvae nationallicence Fatty acid nationallicence Hatchery nationallicence Frozen Artemia nationallicence Haché Rémy Institut de recherche sur les zones côtières, 232B rue de l'Église, E8S 1J2, Shippagan, NB, Canada aut Pelletier Claude Institut de recherche sur les zones côtières, 232B rue de l'Église, E8S 1J2, Shippagan, NB, Canada aut Dumas André Institut de recherche sur les zones côtières, 232B rue de l'Église, E8S 1J2, Shippagan, NB, Canada aut Aquaculture International Springer International Publishing 23/4(2015-08-01), 929-941 0967-6120 23:4<929 2015 23 10499 https://doi.org/10.1007/s10499-014-9852-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10499-014-9852-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Haché Rémy Institut de recherche sur les zones côtières, 232B rue de l'Église, E8S 1J2, Shippagan, NB, Canada aut NATIONALLICENCE 700 1- Pelletier Claude Institut de recherche sur les zones côtières, 232B rue de l'Église, E8S 1J2, Shippagan, NB, Canada aut NATIONALLICENCE 700 1- Dumas André Institut de recherche sur les zones côtières, 232B rue de l'Église, E8S 1J2, Shippagan, NB, Canada aut NATIONALLICENCE 773 0- Aquaculture International Springer International Publishing 23/4(2015-08-01), 929-941 0967-6120 23:4<929 2015 23 10499