Ibirundo by'ibyuma byo mu gisekuru gitaha birimo kugaragaza ibyiza byabyo byose hamwe by'umutekano, ibidukikije birambye, no kugabanya ikiguzi mu mishinga y'ibikorwa remezo byambukiranya inyanja. Bitewe n'ikoranabuhanga ry'ibikoresho, tekiniki z'ubwubatsi, amahame agenga ibidukikije, n'inkunga ya politiki, ibi birundo by'ibyuma byitezweho kuba ingenzi mu mishinga minini y'ejo hazaza nko ku nkuta z'inyanja, ibyambu, n'ibiraro byambukiranya inyanja.
Ku bihugu cyangwa uturere dutekereza kubaka cyangwa kuvugurura ibikorwa remezo byo ku nkombe/ku nyanja, gutangiza hakiri kare cyangwa gushyira mu mwanya ibi bikoresho by'icyuma bigezweho ntibizateza imbere umutekano no kuramba kw'ibikorwa remezo gusa, ahubwo bizanagabanya ikiguzi cy'igihe kirekire kandi bigire uruhare mu kugera ku ntego z'ibidukikije.
Icyuma cy'ibwamiIbirundo by'ibyuma bikoresha ibikoresho bishya, imiterere mishya y'ibice bishya, n'uburyo bushya bwo kubaka, kandi bizwi mu mategeko atandukanye y'ibyambu, ubwikorezi, ubwikorezi bwo mu mazi, n'ubw'ubwubatsi. Aya mahame akubiyemo kurwanya ingese, kurwanya umunaniro, no kurwanya umuvuduko w'amazi n'ubushyuhe.