Reports

Land Use and the Proposed DIN Bottom-line

Dr Adam Canning 22.10.2019 Having attended many of the Ministry for Environment Action Plan for Healthy Waters roadshow events, in the capacity of the science and technical advisory group members, it was clear that there was confusion about the proposed dissolved inorganic nitrogen (DIN) bottom-line of 1.0 mg/L, what it meant nationally and regionally, as … Continue reading Land Use and the Proposed DIN Bottom-line

Why don’t New Zealand farmers want to look after their golden goose?

If we want to assure our export markets and tourists that we are actually a clean sustainable country, we actually have to prove it, writes freshwater ecologist Russell Death. An opinion piece for The Spinoff by Prof Russell Death https://thespinoff.co.nz/politics/09-10-2019/why-dont-new-zealand-farmers-want-to-look-after-their-golden-goose/ According to some in the agricultural industry, the sky will fall on New Zealand agriculture … Continue reading Why don’t New Zealand farmers want to look after their golden goose?

Bugs make excellent water quality indicators!

We only spot sample nutrients and that doesn't take into account multiple stressors/influences on aquatic bug communities. The best way to know if a community is degraded is to sample it directly - they are ones living in the polluted water after-all.   Published in the Gisborne Herald by Michael Nielson: http://gisborneherald.co.nz/localnews/2582287-135/measuring-mauri "Freshwater ecology doctoral … Continue reading Bugs make excellent water quality indicators!

Natural flow variation needed for rivers

Published in the Gisbourne herald by Michael Nielson: http://gisborneherald.co.nz/environment/2513506-135/doc-calls-to-protect-river-flows "...natural “flow variability” ... is... essential to the life-supporting capacity and ecosystems in freshwater, yet it was increasingly disrupted by human activity, largely via water abstraction, barriers, deforestation and climate change. Certain species live between the rocks, yet during low flow sediment can build up in these … Continue reading Natural flow variation needed for rivers