Resource management

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Coastal communities around New Zealand are getting a say on how to respond to sea-level rise, and NIWA is helping them.
A NIWA scientist who spent years poring over handwritten scientific notes stored in about 50 large wooden drawers, has seen the fruits of her labour now being used in ways she never imagined.
A senior NIWA scientist is concerned many councils are having difficulty “getting off the starting blocks” when it comes to planning for coastal climate change.

Our work

Excessive nutrient input (eutrophication) threatens many New Zealand estuaries causing ecological problems, such as algal blooms and poor physical and chemical conditions for estuarine life.
Bringing together leading scientific organisations and regional councils, this project develops a sophisticated computer modelling framework that will enable users to accurately predict how much freshwater is available, where it has come from, and how quickly it moves in New Zealand catchments.
Most of the plastic in the ocean originates on land, being carried to the estuaries and coasts by rivers. Managing this plastic on land before it reaches the river could be the key to stemming the tide of marine-bound plastics. The aim of this project is to understand the sources and fate of plastic pollution carried by urban rivers using the Kaiwharawhara Stream as a case study.
The New Zealand Fish Passage Guidelines sets out recommended practice for the design of instream infrastructure to provide for fish passage.
Most of the plastic in the ocean originates on land, being carried to the estuaries and coasts by rivers. Managing this plastic on land before it reaches the river could be the key to stemming the tide of marine-bound plastics. The aim of this project is to understand the sources and fate of plastic pollution carried by urban rivers using the Kaiwharawhara Stream as a case study.
Bringing together leading scientific organisations and regional councils, this project develops a sophisticated computer modelling framework that will enable users to accurately predict how much freshwater is available, where it has come from, and how quickly it moves in New Zealand catchments.
Coastal communities around New Zealand are getting a say on how to respond to sea-level rise, and NIWA is helping them.
A NIWA scientist who spent years poring over handwritten scientific notes stored in about 50 large wooden drawers, has seen the fruits of her labour now being used in ways she never imagined.

‘Swimmability’ of New Zealand rivers

Swimming is a popular activity in Aotearoa-New Zealand. Two attributes of waters that strongly affect aesthetic quality and safety for swimming are visual clarity and faecal contamination. It turns out that these two attributes are fairly well-correlated (inversely) in New Zealand rivers, such that (easily seen) visual clarity provides a rough-but-useful guide to (unseen) microbial quality.
A senior NIWA scientist is concerned many councils are having difficulty “getting off the starting blocks” when it comes to planning for coastal climate change.

Water storage solutions for irrigation schemes

Demand for water has intensified over the past two decades at a phenomenal rate in New Zealand. Most easy-to-abstract direct run-of-stream resources (i.e. flows without existing upstream modification) are already highly allocated in many regions. With availability of further run-of-stream resources decreasing, farmers are looking more to water storage as a way of achieving more reliable irrigation water supply. This approach allows more water to be made available at the time of need and thus enhances supply reliability.
The New Zealand Fish Passage Guidelines sets out recommended practice for the design of instream infrastructure to provide for fish passage.
Excessive nutrient input (eutrophication) threatens many New Zealand estuaries causing ecological problems, such as algal blooms and poor physical and chemical conditions for estuarine life.
 

All staff working on this subject

Principal Scientist - Coastal and Estuarine Physical Processes
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Hydro-ecological Modeller
Principal Scientist - Fisheries
Principal Scientist - Fisheries
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Freshwater Fisheries Ecologist
Principal Scientist - Aquatic Pollution
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Hydrology Scientist
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Marine Ecology Technician
Environmental Economist
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Resource Management Scientist
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Urban Aquatic Scientist
Environmental Research/Science Communication
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