Globigerina bulloides , which was regarded as the mark species for the sw monsoon prevailing in the arab sea , while in this area , it ' s more likely to be a mark species for the strong ne monsoon 在阿拉伯海被认为是西南季风盛行的上升流标志种globigerinabulloides在本区更可能是东北季风增强、西南季风减弱的标志种。