プランクトンでしょう
purankutondeshō
1. Probably plankton.
★ Common
Noun
#1000567
1. Probably plankton.
1. plankton
1. it seems; I think
2. right?; don't you agree?
1. Planktonic; Of plankton
1. With plankton; By plankton
1. Plankton.
1. If plankton; When plankton
1. Was plankton.
1. Plankton, likely.; Probably plankton.
1. Not plankton.