However, without incorporating sufficient ecological consideration into basin-level planning and engineering design (like fish ladders), dams built for hydropower projects can cause disruption of the natural flows of water that sustain balanced aquatic ecosystems.
Gayunpaman, nang hindi nagsasama ng sapat na ecological pagsasaalang-alang sa pagpaplano basin-level at disenyo engineering (tulad ladders isda), Dam na binuo para sa hydropower proyekto maaaring maging sanhi ng pagkagambala ng natural na daloy ng tubig na nagpapanatili ng balanseng aquatic ecosystem.