SciBlogs

Calling for Christchurch flood photos Waiology Mar 07

By Daniel Collins The flooding that Christchurch experienced on Wednesday was extreme, leaving many houses flooded and roads closed. To build a better understanding of how vulnerable different parts of Christchurch are to flooding in the future, particularly following the earthquakes, we would like your help. If you took any photos at or near peak [...]

The colourful redfin bully Waiology Jan 06

By Amber McEwan As the temperatures gradually get warmer, we aren’t the only ones thinking about hopping into our local river. A small, yet spectacularly attractive little native fish called the redfin bully uses this time of year to make the move from the sea to fresh water. The redfin bully is usually a freshwater [...]

Happy holidays from Waiology! Waiology Dec 23

By Daniel Collins After the recent water quality series, Waiology will be taking a break over the holidays, springing back to action mid-January. Over the course of the year, Waiology published 67 articles and hosted four series – on wetlands, water governance, water quality, and native freshwater fauna. See the archives for the complete list. [...]

Un-muddying the waters: Series conclusion Waiology Dec 20

By Daniel Collins After 10 weeks and 26 articles, Waiology’s series on water quality draws to a close. We have heard from 26 different contributors from 10 different organisations. Articles spanned topics from states and trends in observational data to diverse management solutions. There were some glaring omissions, for which I apologise, but not all [...]

Water quality series: What do you think? Waiology Dec 19

By Daniel Collins We have almost finished Waiology’s series on water quality, with 25 articles running from the science to solutions. I would now like to take the time to ask what you think about the series and Waiology in general. Please take a few moments to answer the following survey. All 12 questions are [...]

Better water quality won’t happen overnight … but it must happen Waiology Dec 18

By Jenny Webster-Brown If we cannot stop ongoing water quality degradation, and effectively restore degraded water environments, we stand to lose much that we value about New Zealand and our way of life. We will lose recreational opportunities, fisheries and our reputation for primary produce from a “clean” environment. We will lose functioning ecosystems, the [...]

How much dairying is too much in terms of water quality? Waiology Dec 17

By Daniel Collins On 21 November the Parliamentary Commissioner for the Environment, Jan Wright, released her second report on water quality. It warned that business-as-usual dairy expansion by 2020 would leave our lakes and rivers more degraded than they are now, even with improved mitigation. I’d now like to re-cap what the report concluded, how [...]

Impacts of climate change on water quality Waiology Dec 16

By Daniel Collins Climate change goes beyond warmer weather and more extreme floods and droughts. Effects are expected to include changes to the water quality of our rivers and lakes as well. This has implications for the vulnerability and sensitivity of freshwater ecosystems, as well as water quality limit-setting and catchment nutrient management. These issues, [...]

Understanding groundwater quality – why it’s not easy Waiology Dec 11

By Chris Daughney and Magali Moreau Groundwater resources are very important for New Zealand. Groundwater supplies about a third of our abstractive water needs and an even greater proportion of the water required by the agricultural sector. There is understandably much concern about groundwater quality, particularly in terms of nitrate. High concentrations of nitrate in [...]

Vague expectations get vague results: Freshwaters need targets Waiology Dec 09

By Mike Scarsbrook You’ll have heard this saying before. You may have even used it as an excuse when talking to your boss at the end of the year. It is equally valid in managing our water resources. If we cannot provide clarity on what we are trying to achieve, how can we expect anyone [...]

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