On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

SHMAK habitat – streambed composition

Two methods for describing streambed composition: the visual assessment method is quicker while the Wolman walk is more accurate.
SHMAK Habitat – Streambed Composition
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There are two methods for describing streambed composition: the visual assessment method is quicker while the Wolman walk is more accurate.