MEPS 703:67-80 Supplementary Material
Sediment macrofaunal response to the diel oxygen cycle
MEPS 703:67-80 | Full text in pdf format
Video S1 (.mp4, 2.4 MB)
Brittlestar (Hemipholis cordifera) in trial 1 in thin aquarium excavating sediment from its burrow. To excavate the brittlestar passes sediment from depth upwards along its downward-extended arm, around its oral disc, and along an upward-extended arm to deposit in a pile on the sediment surface.
Video S2 (.mp4, 1.5 MB)
Brittlestar (Hemipholis cordifera) in trial 1 exhibiting rotation behavior, moving an upwardly extended arm down into its burrow.
Video S3 (.mp4, 3.2 MB)
The polychaete worm Owenia fusiformis in trial 1 surface deposit feeding. The worm bends its tentacular crown down to feed on particles at the sediment surface which creates a characteristic feeding pit surrounding its tube where sediment has been removed.
Video S4 (.mp4, 1.9 MB)
The polychaete worm Owenia fusiformis in trial 1 defecating. The fecal pellets contain visible luminophore particles ingested from the sediment surface around its tube, indicating that the worm is surface deposit feeding.
Video S5 (.mp4, 624 KB)
The polychaete worm Owenia fusiformis in trial 4 repositioning its tube higher, such that the tube opening is higher from the sediment surface.
Video S6 (.mp4, 2.5 MB)
The tellenid clam Ameritella versicolor in trial 1 probing through the sediment with its extendable siphon and deposit feeding, visible as particle disruption at the sediment surface. The clam’s shell can be briefly seen moving through the sediment at from 0–3 s.
Video S7 (.mp4, 1.2 MB)
The tellenid clam Ameritella versicolor in trial 1 ventilating in the sediment. The ventilation, which causes the observed pulsing motion in the overlying sediment, changes in its focal point when the clam relocates its excurrent siphon.