Publication Search
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July 2009This report summarises changes in nuisance periphyton (algal) growth at National River Water Quality Network sites between 1990 and 2006. Read more -
May 2012This independent report prepared for the Ministry by NIWA lists the known possible activities in the EEZ and describes their likely risk to the environment. It also recommends how activities could be classified under the proposed regulatory framework. Read more -
June 2009The report is part of a series of three reports that strengthen the evidence base for a potential industry-led voluntary product stewardship scheme. Read more -
February 2012The report examines how a number of relatively new technologies might impact on New Zealand’s economy. It applies scenario and quantitative modelling to four technologies, assessing their possible impacts on New Zealand’s economy, public health, and environment. Read more -
December 2017This report by the Climate Change Adaptation Technical Working Group summarises the expected impacts of climate change on New Zealand over the medium and long term, takes stock of existing work on adaptation, and identifies gaps in New Zealand’s current approach. Read more -
February 2001This 2001 report is an independent appraisal of the health risks posed to New Zealanders by dioxin and dioxin-like polychlorinated biphenyls. The report contains recommendations on managing these chemicals in New Zealand, and the need to reduce population exposures. Read more -
September 2010This study reports on the use, recycling and disposal to landfill in New Zealand of articles containing brominated diphenyl ether (BDE) flame retardants. Read more -
April 2008The scoping report identifies potential environmental effects of the New Zealand Emissions Trading Scheme (NZ ETS) and closely related measures, potential response measures, and terms of reference for further work. Read more -
May 2019This report analyses environmental conditions that cause the growth of periphyton in streams and rivers. Read more -
June 2005This 2005 report looked at the information and tools needed to make smart decisions about the best future uses of our ocean. It assessed the range of information and decision-making tools available in 2005 and identified opportunities to improve requirements. Read more -
June 2010This report takes a detailed look at New Zealand's trends towards 'total emissions' and the two main contributing factors that fluctuate these trends from year-to-year. Read more -
September 2020An evaluation report and compilation spreadsheet of available tools, databases and resources relating to the distribution of threatened freshwater species and their habitats in New Zealand. Read more -
September 2019This draft NIWA report provides the first attempt to develop bottom-line thresholds for suspended and deposited sediment based on ecological responses for New Zealand rivers and streams. Read more -
November 1998This 1998 report provides data on the levels of dioxins and PCBs in New Zealand retail foods, including dairy products, meat and fish, as well as other staple foods such as potatoes and cereals. Read more -
May 2020This NIWA report summarises existing literature on the consequences of delaying reductions to nutrient inputs on rivers, estuaries and lakes. Read more -
April 2015One of two reports that assessed the options and implications of using the Macroinvertebrate Community Index (MCI) as an attribute in the National Policy Statement for Freshwater Management. It looked at identifying potential threshold values to define numeric attribute states for MCI. Read more -
December 2013An investigation into the feasibility of using freshwater fish predictive models in national state of the environment indicators. Read more -
December 2018Ministry for the Environment, in partnership with Bay of Plenty Regional Council, commissioned a literature review to get an accessible summary of relevant research carried out in New Zealand on methods to manage sediment and their economic assessment. Read more -
May 2018This report outlines the establishment of reference conditions and trigger values. Reference conditions are defined as the chemical, physical or biological conditions that can be expected in streams and rivers with minimal or no anthropogenic influence. Read more -
February 2012This independent report surveys literature on the regulation of chemical and biological risks in Australia, Canada, China, Japan, the European Union, the United Kingdom, and the United States. Read more -
June 2012This report identifies the key factors that influence businesses' decisions to innovate using new organisms in New Zealand. The aim of the project was to determine whether regulation for managing risks is an important determinant in such decisions. Read more -
September 2002This study measured dioxin in soils at residential properties in the New Plymouth suburb of Paritutu. It was undertaken because of longstanding community issues with the history of dioxin emissions from a chemical plant located in the suburb. Read more -
October 2018This document captures areas of shared interest in water quality and ecosystem health improvements and defines how the Crown and Māori will work together to make improvements to New Zealand’s freshwater. Read more -
June 2018The transition to a low-emissions economy will bring many costs and benefits. This report analyses the available evidence on the co-benefits (eg, health, congestion) of possible policies to reduce greenhouse gas emissions in New Zealand. Read more -
June 2003This 2003 report set out the Government's plan to the reduce cost of complying with the Hazardous Substances and New Organisms Act without compromising safety and the environment. Read more -
April 2014This report by Indufor Asia-Pacific describes the methodology used to complete deforestation mapping in New Zealand for the calendar years 2008 to 2012. It includes regional results and national statistics for the area of land deforested, harvested, or awaiting a land-use decision. Read more -
November 2002A 2002 stocktake of New Zealand's oceans legislation, policies, and strategies - and the international conventions New Zealand is a party to. Read more -
February 2001This 2001 report provides details about genetic modification (GM) research being conducted in New Zealand and ideas as to how GM and non-GM crops could coexist in New Zealand. Read more -
July 2001This report describes the result of an initial investigation into the impact of the introduction of a tradeable emissions permit regime for greenhouse gases. Read more -
February 2016This technical note sets out the results of macroeconomic modelling, by the New Zealand Institute of Economic Research, on the impacts of removing the New Zealand Emissions Trading Scheme one-for-two transitional measure at various carbon prices. Read more -
May 2018Phormidium is a potentially toxic, mat-forming benthic cyanobacterium found in an increasing number of New Zealand rivers. This report outlines a study which investigated drivers of Phormidium blooms in New Zealand rivers to predict risk of blooms. Read more -
August 2001This report summarises the findings of the "Valuing New Zealand's clean green image" report. Read more -
April 2019This report summarises analysis methods and outcomes for modelling New Zealand’s river water quality. Read more -
April 2019This report summarises analysis methods and outcomes for modelling New Zealand’s lake water quality. Read more -
May 2019This report develops a model predicting the reference state for stream macroinvertebrates across New Zealand. Read more -
May 2020A literature review of studies that jointly considered climate and freshwater policy in New Zealand. Read more -
September 2019This data report provides an annual data picture of brassica grown in New Zealand. Read more -
October 2018This document sets out the Government’s plan to restore and protect freshwater in New Zealand. Read more -
November 2001A series of reports on the effects of New Zealand's climate change policies on the forestry sector. Read more -
July 2004This report provides recommendations on how to better understand the economic impacts in New Zealand of climate change-related extreme events. The report focuses on New Zealand flood events, and presents a framework in which such events may be assessed in terms of economic costs. Read more -
June 2010The report assesses how well Integrated catchment management is working in New Zealand for managing freshwater quality. Read more -
November 2001This protocol identifies and describes standardised protocols for use by agencies throughout New Zealand for macroinvertebrate biomonitoring. Read more -
May 2019This report provides information to help interpret trends in water quality of New Zealand’s lakes and rivers. Read more -
May 2017This report assesses the structure and format of regional rules, and how they vary around New Zealand. Read more -
May 2017This report examines the use of spatial planning tools across New Zealand and identifies commonalities and differences. Read more -
July 2006This report examines options for using market-based instruments to maximise the value and sustainability of New Zealand’s marine resource. Read more -
May 2005This report describe the likely changes in New Zealand drought risk over the 21st century, under climate change scenarios. Read more -
July 2006This report investigates approaches for the allocation and subsequent reallocation of water in New Zealand, including situations of over-allocation. Read more -
December 1998This 1998 report provides data on the concentrations of dioxins, PCBs, organochlorine pesticides and chlorophenols in New Zealand soils. Read more -
April 2018This report provides an analysis of New Zealand’s wetland loss for the period summer 2001/2 through to summer 2015/2016. Read more