The National Inland Waterways Authority (NIWA) has announced that arrangements have been concluded for its Annual Management Retreat, aimed at improving performance for the year 2025. Mr. Suleiman ...

The nationwide average temperature in January 2025 was 16.4°C. This was 0.8°C below the 1991-2020 January average from NIWA’s seven station temperature series which begins in 1909, and New Zealand’s ...

“The yellow mayfly should be celebrated as perhaps the most beautiful mayfly in Aotearoa New Zealand, if not the world,” says NIWA Freshwater Ecologist Brian Smith, who has put forward the piriwai for ...