Fig. 5
From: Phylogenetic positions of “pico-sized” radiolarians from middle layer waters of the tropical Pacific
Diagram showing a model based on the hypothesis that “pico-sized radiolarians” represent radiolarian gametes. Three kinds of movement in the ocean should be considered: ① the daily migration of nektons between 0 and 500 m; ② vertical movement of water masses with cyclonic eddies; ③ pacific circulation. We show a case in which cyclonic eddies occurred at a sampling site (night in the Northern Hemisphere), with cyclonic eddies enhancing the looping path, and increasing the distance between mother cells and swarmers