Ibyingenzi byingenzi kuri ubu bwoko bwa reberi ni ugusiba inkombe, kuzuza inyanja cyangwa gutunganya ubutaka bunini hamwe nindi mishinga yubwubatsi。Ingano nini ya直径guswera & kugemura byyoroshye biroroshye guhuza imiyoboro irashobora kugabanya ihungabana ryatewe numuraba。Kora itangazamakuru muri hose birusheho kugenda neza。kureremba kureremba marine reberi ikoreshwa mugucukura, bihujwe na Dredger。