Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/43515
Title: First results of spawning and larval rearing of longfin yellowtail Seriola rivoliana as a fast-growing candidate for European marine finfish aquaculture diversification
Authors: Roo Filgueira, Francisco Javier 
Fernández Palacios, Hipólito 
Hernández Cruz, Carmen María 
Mesa-Rodríguez, A.
Schuchardt, D.
Izquierdo López, María Soledad 
UNESCO Clasification: 251092 Acuicultura marina
Keywords: Diversification
Seriola
Broodstoock
Spawning
Larval rearing, et al
Issue Date: 2014
Publisher: 1355-557X
Journal: Aquaculture Research 
Abstract: The present study describes the adaptation of longfin yellowtail Seriola rivoliana as broodstock and first larval rearing trials under intensive and semi‐intensive conditions. Fifteen sub‐adults were captured in the South coast of Gran Canaria (Canary Islands, Spain) in June 2007. Fish (initial weight 1.76 ± 0.25 kg) reached a weight of 6.0 ± 1.1 kg in July 2010. Once a year, fish were sampled to determine individual growth in weight and size. In addition, the state of sexual maturity was established based on gonadal biopsies. On the basis of repeated hormonal injection (GnRHa, 20 μg/kg), 10 successful spawns were obtained between July and October 2009, with 92.5 ± 5.5% and 72.6 ± 17.2%, fertilization and egg viability respectively. First results of larval rearing under semi‐intensive conditions, showed an average survival at 30 DAH of 2.5% as compared with 0.5% under intensive conditions. The low survivals under the two rearing conditions in addition to their failure to pass a stress test could be attributed to deficiencies in essential fatty acids as could be seen in both eggs and feeds. Morphometric parameters showed no significant difference between the two rearing systems in 230 DAH larvae.
URI: http://hdl.handle.net/10553/43515
ISSN: 1355-557X
DOI: 10.1111/are.12007
Source: Aquaculture Research [ISSN 1355-557X], v. 45 (4), p. 689-700
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