id	keyword
american_scientific_journal-7772	species
american_scientific_journal-7772	macrophytes
american_scientific_journal-7772	diversity
american_scientific_journal-7772	river
american_scientific_journal-7772	lumbocan
american_scientific_journal-7772	sites
american_scientific_journal-7772	study
american_scientific_journal-7772	research
american_scientific_journal-7772	volume
american_scientific_journal-7772	butuan
american_scientific_journal-7772	city
american_scientific_journal-7772	journal
american_scientific_journal-7772	agusan
american_scientific_journal-7772	division