First results of spawning and larval rearing of longfin yellowtailSeriola rivolianaas a fast-growing candidate for European marine finfish aquaculture diversification

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.

Vii Foro Iberoamericano De Los Recursos Marinos Y La Acuicultura

“…En el mercado Japonés las especies Seriola spp., son un importante producto muy valorado para sashimi, después del atún (Whatmore et al, 2012), siendo la especie S. quinqueradiata la que domina el mercado con 155247 toneladas que generaron 1,3 mil millones de dólares americanos en el 2009 (FAO, 2012). El cultivo de S. rivoliana debido a su rápido crecimiento, adaptabilidad al cautiverio y el alto valor en el mercado, está siendo considerado para el desarrollo de la maricultura en Europa (Roo et al, 2014). Mientras que en Japón, Australia y EE.UU., la industria aún se mantiene con la colección de juveniles del medio silvestre para el engorde en jaulas y tanques (Nakada, 2002;Miki et al, 2011).…”

“…Así mismo, se han llevado a cabo experiencias en la larvicultura de esta especie, obteniéndose varias cohortes, con supervivencias hasta de 2,4% (Blacio et al, 2003;Argüello-Guevara et al, 2009). Los primeros resultados alcanzados en España (Roo et al, 2014) muestran una supervivencia de 2,5% a 30 días posteclosión (DPE) cuando se evaluaron sistemas semi-intensivos para la producción de juveniles. Sin embargo, la actual tecnología para la producción estable de juveniles de huayaipe es incompleta.…”

“…Sin embargo, la actual tecnología para la producción estable de juveniles de huayaipe es incompleta. El principal problema del mantenimiento de la acuicultura del huayaipe u otros peces del género Seriola parece estar relacionado con la producción continua de juveniles y el mejoramiento de la supervivencia en esta etapa que se ve afectada por las condiciones abióticas del cultivo, enfermedades, canibalismo, escaso conocimiento de los requerimientos nutricionales, entre otros (Miki et al, 2011;Woolley et al, 2012a,b;Matsunari et al, 2013;Hilder et al, 2014;Roo et al, 2014).…”

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“…As with other Seriola species, this species is considered one of the emergent marine finfish species for aquaculture and fisheries due to their fast growth (Roo et al, 2014). Often destined to the demanding sushi markets, almaco jack may reach high market values of around $13 per kg (Bairagi et al, 2016).…”

Skeletal Development and Mineralization Pattern of the Vertebral Column, Dorsal, Anal and Caudal Fin Complex in Seriola Rivoliana (Valenciennes, 1833) Larvae

“…This species belongs to Carangidae family, along with other popular species like Seriola dumerili (greater amberjack), Seriola lalandi (yellowtail king fish) and Seriola quinqueradiata (Japanese yellowtail). Even though S. rivoliana is commercially produced [3], studies about its biology are scarce and only few reports on larval rearing have been conducted in Ecuador [4][5][6], Hawaii [7] and more recently in the Canary Islands [8]. In contrast, numerous studies of the genus Seriola have been published related to the feeding requirements and nutrition [9][10][11][12][13][14][15][16][17], reproduction biology [2,[18][19][20][21] and culture needs [8,[22][23][24][25][26].…”