Sherry River

'Sherry River Project; improving water quality through farm environmental planning.'

Facilitated by NZ Landcare Trust this three year Sustainable Farming Fund project aimed to help the community to improve water quality within the Sherry River catchment, a 7800 hectare sub-catchment in the upper reaches of the larger Motueka River system near Nelson. The Sherry catchment is made up of forestry in the upper end of the valley, with a mix of dairy, sheep, beef and lifestyle landowners in the lower valley. The area has been a significant contributor of E. coli and excess nutrients into the Motueka River. 

Researchers from the Motueka Integrated Catchment Management Project (Landcare Research) confirmed that water quality problems in the Sherry River were linked to farm practices, especially dairy herd crossings. The issue came to a head in 2001 when it was identified that E.coli levels exceeded safety standards for bathing and stock drinking water.

Issues:

  • E.coli levels exceeded safety standards for bathing and stock drinking water
  • Suspended solids and sedimentation problems
  • Lack of shade on some stretches of the river threatening fish habitats

The news was a shock to this small tightly knit rural communioty. With assistance from NZ Landcare Trust they got together and formed the The Sherry River Catchment Group, with an aim to return water quality to levels safe for bathing.

They agreed to a study into the effects on water quality of cows crossing the river. The results were published in 'Cows & Creeks' which led to a change in advice around the management of riparian areas. As a direct result of this information the landowners took action. Three major bridges were constructed and another which had been used exculsively for farm vehicles was also used as a cow crossing. These actions saw a 50% improvement in water quality which was observed by researchers and documented in a scientific report called 'Cows out of Creeks.'

This success prompted the group to seek further improvements through riparian management and planting, stock management, improved effluent management and soil conservation activities. 

A summary of how the community came together around this project is available in 'The Sherry River Story' - available for download on this page.

The Sherry River project feeds into the broader Integrated Catchment Management (ICM) Project which is a six-year whole catchment ‘mountain top to the coast’ study of the Motueka River and its tributaries.