The fish assemblages of the Ord River project was undertaken.  The study was specifically designed to gauge the effect of migratory barriers on fish of the Ord River, to investigate fish passage requirements and solutions and found:

• Provided the unique flow conditions and requirements of the fish fauna of the Ord River is given full consideration there is no reason why fish passage cannot be successfully restored; and,
• The impact of the restoration of fish passage on fish assemblages in Lake Kununurra is difficult to predict but it is unlikely that there will be any negative impacts.