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MANGAMAHAKI
CATCHMENT

Primary Township Omakere

Area  26,418 hectares

Land Use: 94 percent of the catchment in the pasture and four percent is in exotic forest.

CATCHMENT
GROUP

Catchment Committee Aaron Vowles, Callum Sutherland, Sarah Kingston, James Aitken, Grant Angus, Stuart McDougal

Catchment Co-ordinator Pixie Seligman

Email tukicoordinator@gmail.com

Phone 0277212423

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ABOUT OUR CATCHMENT

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The 26,418 ha Mangamahaki catchment, centred around Omakere, supports sheep and beef farming, cropping, and some forestry. In 2021, the community formed the Mangamahaki Community Catchment Group to address environmental and flood-related challenges.

Frequent extreme rainfall has worsened flooding, with dense willow infestations blocking waterways. This has caused erosion, sediment loss, and affected the water quality. At a meeting with HBRC in 2022, locals raised concerns about the stream’s flood risk, business impacts, and ongoing degradation. As a result, HBRC launched a three-year willow removal project, aimed at clearing 25.5 km of stream. It is now clear that more time and funds will be required to clear the stream.

A 2024 TLC Demonstration Project, with support from the Cyclone Gabrielle Appeal Trust, focused on riparian planting, with over 3,000 natives established to stabilise banks, filter nutrients, and boost biodiversity.post will removal.

THE BIG PICTURE 


The Big Picture

As part of The Big Picture project, Tukituki Land Care has developed independent, science-backed catchment plans for each of the 17 sub-catchments of the Tukituki River. These farmer-led plans address key environmental challenges specific to each area while identifying practical, affordable solutions.  These plans do not impose rules or regulations but they give farmers and catchment groups a roadmap for future planning to improve water quality, boost farm productivity, and open the door to future funding opportunities.  

TLC partnered with environmental planning consultancy Environment, Innovation and Strategy Ltd (EIS), who collected data specific to each sub-catchment, including erosion maps, flow path models, land use capability, soil types, and water monitoring information. Alongside the scientific data, in December 2024 TLC hosted workshops for farmers and growers in each sub-catchment to make sure the solutions aligned with the realities of farming and growing in each sub-catchment. 

Catchment plans and a summary document are now available for each of the 17 sub-catchments.

 

Mangamahaki Catchment Plan: Summary

Download the Mangamahaki catchment summary to find out more about the Mangamahaki catchment including context, challenges and key actions.

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Mangamahaki Catchment Plan: Full Report

Download the Mangamahaki catchment full report for a more in-depth look into the context, challenges and key actions in the catchment.

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Mangamahaki Catchment Maps

These maps have been created as part of The Big Picture and have been compiled as an appendix to the catchment plans. 

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GALLERY

NEWS - TUKITUKI LAND CARE

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Copyright Tukituki Land Care 2022 

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