DEPM 2014. Preliminary Egg Results for the Atlanto-Iberian Sardine ICES VIII and IXa

• Main Authors: Angélico, M.M. (María Manuel), Díaz-Conde, M.P. (María Paz), Franco-Fernández, C. (Concha), Lago-de-Lanzós-y-Tomás, A. (Ana), Nunes, C. (Cristina), Pérez-Pérez, J.R. (José Ramón)
• Format: Report
• Language: unknown
• Published: Centro Oceanográfico de Vigo 2014
• Subjects: North Atlantic; Northeast Atlantic
• Online Access: http://hdl.handle.net/10508/1968

The triennial DEPM for estimation of sardine spawning biomass for the Atlanto-Iberian stock areas IXa – VIIIc and VIIIb up to 45 º N took place in the S and W (IPMA) from 15th March to 26th April and in the N (Galicia, Cantabrian Sea and French coast, IEO) between 29th March and 21st April. The whole area was surveyed however the Portuguese survey occurred much later than usual and suffered several interruptions; part of IPMA´s DEPM survey was conducted simultaneously to the acoustics survey onboard the same vessel. The number of fishing samples was maintained at levels similar to other years but it was evident that sardine schools were less available than during previous surveys in particular in the western and northern shores. Preliminary estimates highlighted a sharp decrease in egg production from 2011 to 2014; this pattern was particularly clear in the northern stratum.