Irrigation New Zealand

INZ, in conjunction with Fish & Game, Department of Conservation and Environment Canterbury, have been coordinating research into the effectiveness and applicability of fish screening methods used in New Zealand. Screens of various construction techniques have been tested using live fish. The initial project aimed to update the NIWA “Good Practice guidelines.” However, the specific testing was unable to definitively test each criteria, so the end result is a findings report to be read in conjunction with the NIWA guidelines. Each individual screen test and the findings report are available.

Results to date reveal the two main factors for effective fish exclusion are:

  1. the design and provision of the by-pass components
  2. regular maintenance of the fish screen

The findings report goes into more detail on these and other points. Further trials are planned to test the importance and impact of different mesh size.

Screen Evaluations Findings report

Fish Screening: Good practice guidelines

Selwyn DC screen evaluation

Acton screen evaluation

Mead screen evaluation

North Otago Irrigation Company screen evaluation

Totara Valley screen evaluation

Levels Plains screen evaluation draft report

DIDSON Monitoring at Levels Plain Intake letter

 

 

 

 

NEWS

How farms are working to reduce environmental impacts in Selwyn 

14th February 2018

It’s been a busy time for many Selwyn farms over the past few months. After a record breaking dry spell in late 2017, we received some welcome rain in January.  In conditions like these, irrigation is really important both for….. Read more

NZ needs more water storage in a changing climate

8th February 2018

The importance of water storage in helping provide a reliable supply of water for urban communities, and for food and energy production in a changing climate needs to be recognised, says IrrigationNZ. “We are seeing the effects of poor future….. Read more

What can we learn from 2017’s wild weather about managing water?

8th February 2018

  As year’s went 2017 was a fairly dramatic one. In February, one of the biggest fires in New Zealand history ignited on the Port Hills amid tinder dry conditions, causing thousands of residents to be evacuated. In March, the….. Read more

Free irrigation workshop for Bay of Plenty farmers

18th January 2018

Bay of Plenty dairy farmers have the opportunity to join a free workshop showing them how to optimise their irrigation use. The workshop will be run by IrrigationNZ and will cover how to assess how well irrigation systems are performing…… Read more

Irrigation Workshops – Marlborough and Tasman

7th December 2017

With challenging dry conditions continuing across the Upper South Island, Marlborough and Tasman irrigators will have the opportunity to find out how to be more efficient in their water use at upcoming workshops hosted by IrrigationNZ. “Understanding how to monitor….. Read more

EVENTS

Irrigation Efficiency Summer Programme

November 7, 2017 - February 28, 2018

                                 Is your irrigation equipment operating as it should? What improvements could be made? These are questions that can be technically challenging and costly. To help irrigating farmers navigate to Good Management….. Read more

Foundations of working with tangata whenua workshop

March 6 - March 7

Given the considerable interest shown, INZ have organised a workshop on how to be effective working and negotiating with tangata whenua. Proudly supported by our training partners The learning objectives of this are to: Have a basic idea of who….. Read more

Irrigation Accreditation

Smart Irrigation