It is hereby declared that the Manganuioteao River and its tributaries, the Mangaturuturu and Makatote Rivers, and the Waimarino and Orautoha Streams, include and provide for—
(a) outstanding wild and scenic characteristics:
(b) an outstanding wildlife habitat for the blue duck or whio (Hymenolaimus malacorhynchos):
(c) an outstanding recreational fishery.