Partnership - Hawaii Fish Habitat Partnership The Waipa Stream flows from lower Mount Waialeale to Hanalei Bay on the north shore of Kauai, Hawaii. Much of the upper Waipa Stream system still exhibits good quality aquatic habitat. However, the lower reaches of Waipa Stream were significantly degraded due to widespread and dense overgrowth of an invasive riparian tree known as hau ( Hibiscus tiliaceus). The in-stream habitat available for native aquatic fish and invertebrates was reduced by hau growth in the stream causing sediment and plant debris to fill up a stretch of the stream channel and creating unnatural barriers for migrating native fish and prawns that have to pass through this section of the stream at least twice during [...]
