North Pacific Fisheries Commission NPFC-2019-SSC PSSA05-WP13 (Rev. 1) A review of the biology for Pacific saury, Cololabis saira in the North Pacific Ocean Taiki Fuji1*, Satoshi Suyama2, Shin-ichiro Nakayama3, Midori Hashimoto1, Kazuhiro Oshima1 1National Research Institute of Far Seas Fisheries, Japan Fisheries Research and Education Agency 2Tohoku national Fisheries Research Institute, Japan Fisheries Research and Education Agency 3National Research Institute of Fisheries Science, Fisheries Research and Education Agency *Corresponding author’s email address:
[email protected] Contents 1. Introduction…………………………………………………………………………………………2 2. Stock identity……………………………………………………………………………………….2 3. Early life history……………………………………………………………………………………2 3-1. Spawning ground………………………………………………………………………………2 3-2. Larval transportation……………………………………………………………………………3 3-3. Recruitment variability………………………………………………………………………….4 4. Feeding habits and predators…………………………………………………………………………4 5. Growth………………………………………………………………………………………………..5 6. Maturation…………………………………………………………………………………………….5 6-1. Spawning pattern, fecundity and spawning duration…………………………………………….5 6-2. Seasonal change of maturity size………………………………...................................................6 6-3. Maturation schedule for each seasonal cohort considering growth and maturation size…………6 6-4. Maturation and environmental factors……………………………………………………………7 6-5. Percentage of matured fish………………………………………………………………………..7 7. Distribution and migration…………………………………………………………………………….7 8. Natural mortality………………………………………………………………………………………9