The sedimentation rate over the past 10 years in the Hutt Estuary shows an overall trend of deposition, a relatively consistent moderately elevated sediment mud content, and a moderately shallow depth at which anoxic sediments occur. The estuary flats remain under pressure from sediment impacts related to poor water clarity and muddy
intertidal substrates, with a macrofaunal community
likely dominated by mud tolerant species.
Stevens LM 2020. Hutt Estuary: 2019/2020 Intertidal
Sediment Monitoring Summary. Salt Ecology Report 056. Prepared for Greater Wellington Regional Council by Leigh Stevens, November 2020.