Coastal Restoration Trust of New Zealand

Coastal Dune Ecosystem Reference Database

Whanganui Estuary 2017 broad scale habitat mapping

Author
Leigh Stevens and Barry Robertson
Year
2017
Journal / Source
Wriggle Ltd report of Horizons Regional Council
Publisher / Organisation
Horizons Regional Council
Pages
37
Summary
The Whanganui Estuary is a large (353ha), shallow, generally well-flushed, macrotidal (>1.8m tidal range), low susceptibility, tidal river estuary located at Whanganui. It has a simple elongate shape and the mouth is always open to the sea. The catchment is dominated by native forest (56%) and pasture (35%). It is part of Horizon Regional Council’s (HRC) coastal State of the Environment monitoring programme. This report presents the results of 2017 broad scale estuary habitat mapping with broad scale monitoring results, risk indicator ratings, overall estuary condition, and monitoring and management recommendations summarised below.