Those sections of forest along the Te Anau lake shore, resting on unconsolidated material and within ca. 3m of the maximum natural lake level (204.3m above mean sea level), could be threatened by the predicted water table effects (Mark et al. 1972) of lake manipulation required for hydroelectric development. The floristics and structure of this forest were investigated. Five forest associations have been recognised, apparently related to differences in soil moisture conditions.
These recommendations are aimed at providing the maximum water use for both Lake Manapouri and Lake Te Anau commensurate with the conservation of those features of their natural shorelines which provide ecological stability and a high aesthetic quality.