The MGI Aquatic Ecology Surveys – Stage 1 were undertaken to address known gaps in ecological information across the MGI scheme.

In South Canterbury, where farms meet rivers that have been here long before any of us, Morven Glenavy Irrigation Limited has always known one thing: if the waterways aren't healthy, nothing else works.

Irrigation and the environment are sometimes talked about as if they are at odds. The reality is more balanced. The history of irrigation in South Canterbury shows a growing understanding of how important it is to look after water and waterways while supporting productive farming.

Irrigation schemes do not just appear out of nowhere. They are built by people. Farmers, boards, staff, and locals who are prepared to put in the work for the long haul. That is certainly true of MGI.

Irrigation has long played a vital role in shaping farming communities across South Canterbury, supporting not only productive land use but also the people and livelihoods connected to it. Reliable water supply underpins decision-making on farm, influences long-term investment, and helps rural communities remain resilient in changing conditions.

Irrigation has never stood still in the Morven–Glenavy–Ikawai district. What started with simple systems and a lot of manual work has steadily evolved alongside farming practices and technology.

The development of the Waihao Downs Irrigation Scheme marked an important step forward for MGI and the wider district. As farming in the area continued to evolve, access to reliable water became increasingly important.