Estimation of mackerel (Scomber scombrus L., 1758) and horse mackerel (Trachurus trachurus L., 1758) daily egg production outside the standard ICES survey area
a Marine Institute Galway Technology Park, Parkmore, Galway, Ireland b National University Galway, Ireland c Marine Laboratory PO Box 101, Victoria Road, AB11 9DB Aberdeen, Scotland, UK