José Luis Acuña and Markus Kiefer.

Limnology and Oceanography Volume 45, Issue 3, Pages 608–18, 26 April 2000

Functional response of the appendicularian Oikopleura dioica.

“Particles cleared from suspension by O. dioica are ingested and transformed into fast‐sinking fecal pellets at low FC, while they are mainly accumulated into slow to fast‐sinking filter houses at high FC”. Food used in this study: Isochrysis galbana (5.5 µm in size), Tetraselmis suecica (9.5 µm), and Chlorella sp. (3.5 µm).