Before revision: Once the salmon die in the river, they are either scavenged by other animals, or they decompose and release inorganic nutrients to the planktons in the river and the riparian vegetations in the floodplains .
After revision: Once the salmon die in the river, they are either scavenged by other animals, or they decompose and release inorganic nutrients to the plankton in the river and the riparian vegetation in the floodplain .