Report of the Workshop on egg staging, fecundity, and atresia in horse mackerel and mackerel (WKFATHOM2)

The Workshop on egg staging, fecundity, and atresia in horse mackerel and mackerel (WKFATHOM) met twice in 2018. The first meeting was from 8 to 12 October in Bremerhaven, Germany, to calibrate egg sorting, staging and identification. The second meeting was from 19 until 23 November in IJmuiden, The Netherlands, to calibrate fecundity and atresia estimation and to standardize analysis for the DEPM method.