@article{oai:ir.kagoshima-u.ac.jp:00002124,
 author = {田ノ上, 豊隆},
 journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University},
 month = {2016-10-27},
 note = {About the spawning-season of mackerel (P. tapeinocephalus) in the southern sea of Kagoshima and the Eastern sea of China (South of  29°N lat.) the following results were derived from some repeated nvestigations on the state of the gonad index (G.  W.  x  103/B.  L.3)  ; the body length distribution of young mackerel per  month ; total-length of the collected  larva  ; and the sea-conditions of fishing ground. 1) In the neighbourhood of the southern sea of Kagoshima, the spawning season of mackerel (P. tapeinocephalus) is to be fixed within the term from the end of January to that of April, but rarely in the exceptional year it may be extended to the month of May. The range of the water-temperature and salinity appropriate to the spawning is fixed to be 18  —23°C  ;  34.3  —34.7  % respectively. 2) In the Eastern sea of China (South of 29°N lat.), the spawning season of P.  tapeinocephalus lies within the term from the end of January to that of April.},
 pages = {42--52},
 title = {薩南海域産ゴマサバの産卵期の考察},
 volume = {5},
 year = {}
}