Standardized CPUE of Pacific saury (Cololabis saira) caught by the Japanese stick-held dip net fishery up to 2018

We updated the standardized catch-per-unit-effort (CPUE) of Pacific saury caught by the Japanese stick-held dip net fishery up to 2018 for the stock assessment under the framework of NPFC. CPUE was explained by a generalized linear model (GLM) where explanatory variables such as year, month, fishing area, vessel size, and sea surface temperature were incorporated. Although the model selected by the values of BIC changed by a slight modification to the standardization procedure, year trend of standardized CPUE when using data up to 2018 was relatively similar with that for data up to 2017. The standardized CPUE in 2018 increased to the levels in 2013 and 2015 after the decrease in 2017.