Fig. 3 Side view of the 10 mm absorbance cell containing an ephyra and ten Oithona . After this clip, the ephyra
swam upward near the surface where Oithona is swimming. Nevertheless, not a single Oithona was in contact
with ephyra . All the individuals of Oithona easily escaped
from the ephyra
Fig. 4 Side view of the 40 mm cubic chamber containing
an ephyra and a few Acartia . After this clip, the ephyra
swam upward near the surface where Acartia were
located. Unlike the case of Oithona , Acartia did not
always succeed to escape, but sometimes were in contact
with ephyra and eventually eaten