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Comparative performances of juvenile abalone (Haliotis tuberculata coccinea Reeve) fed enriched vs non-enriched macroalgae: Effect on growth and body composition

Authors :
Hipólito Fernández-Palacios
A. Bilbao
G. Courtois de Viçose
Marisol Izquierdo
M.P. Viera
Juan Luis Gómez-Pinchetti
Source :
Aquaculture. 319:423-429
Publication Year :
2011
Publisher :
Elsevier BV, 2011.

Abstract

Abalone Haliotis tuberculata coccinea Reeve (1846), is a target species for diversification of European aquaculture production. Taking into account that sustainable, eco-friendly production methods are to be a part of future expansion of the abalone industry, growth performance of juvenile abalone reared in an integrated culture system was evaluated and compared with that of abalone fed non-enriched macroalgae. Four macroalgae treatments, three monospecific: Ulva rigida (UN), Hypnea spinella (HN) and Gracilaria cornea (GN) and a composite one (MN), were produced out of fishpond wastewater effluents, while other four control treatments consisted of the same species reared in fresh seawater (U; H; G; M). Seaweeds reared in fishpond wastewater effluents increased their protein content from 11–17% to 29–34%. Lipids consisted mainly of saturated fatty acids (SFA) (43–60%), palmitic acid being the most abundant fatty acid (40–47%). Highest EPA percentage was found in red algae H. spinella (6.9%), being ten times higher than that of U. rigida (0.7%). All the algae tested contained very low levels of arachinodic acid (0.1–1.6%) and docosahexaenoic acid (0.5–3%). Protein levels in foot muscle (74–76%) did not differ significantly (P G. cornea led to the lowest growth performance probably due to the lowest feed intake. The results clearly indicate that H. tuberculata coccinea growout can efficiently take place in an integrated-culture system suggesting that on-farm seaweed-abalone production could be part of future development of the abalone industry in the Canary Islands.

Details

ISSN :
00448486
Volume :
319
Database :
OpenAIRE
Journal :
Aquaculture
Accession number :
edsair.doi...........641f14df8c2fea53f78be6912aa7ea19
Full Text :
https://doi.org/10.1016/j.aquaculture.2011.07.024