Looks like floated algae
In my mind
Dakotsu Iida trained under Takahama Kyoshi, and was chief editor of Unmo until his death. His son Ryuta Iida, a famous haiku poet himself, took over as the editor of Unmo after his father’s death.
Seven days to make music in response to the assigned haiku: to participate visit https://www.naviarrecords.com/about/naviar-haiku
Deadline: 27th November 2019
haiku by Iida Dakotsu https://wkdhaikutopics.blogspot.com/2007/03/iida-ryuta.html
picture by Cristian Palmer https://unsplash.com/@cristianpalmer