During these blooms, most of the phytoplankton die and sink to the bottom, where they decompose.
(most of the phytoplankton; die; T:During these blooms) (most of the phytoplankton; sink; to the bottom; T:During these blooms) (they; decompose; L:the bottom)
most of the phytoplankton most of the phytoplankton they
die sink decompose
T:During these blooms
to the bottom T:During these blooms
L:the bottom