Figure 2
From: Trophic ecology of glass sponge reefs in the Strait of Georgia, British Columbia
Early stages of particle capture in the primary and secondary reticula of Aphrocallistes vastus. (a) Bacteria (pseudocolored pink) were visible outside of prosopyles (p) and (b) in the spaces between the primary (1 R) and secondary (2 R) reticulum. (c) Beads (pseudocolored orange) could be seen being enveloped by small extensions of tissue (arrows) between the collar bodies (pseudocolored green). (d) Occurrences of phagocytic vesicles increased as incubations grew longer. Also shown: choanoblasts (chb).
