Freshwater and Estuaries key contacts

Contacts for our freshwater and estuaries services.

Chief Scientist - Freshwater and Estuaries
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John is a stream ecologist with a BSc Hons from University of Otago and a PhD from Massey University. His research interests include nutrient attenuation within rivers, and understanding and mitigating the effects of forestry and pastoral agricultural land uses and the rehabilitation and restoration of streams and lakes. John has established long-term studies and is interested in integrated approaches involving land and aquatic research and social and biophysical science.  Researchgate
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Christian is a hydrologist with a MSc in small scale hydrology (University Joseph Fourier- France) and PhD in Soil Physics (University Joseph Fourier- France). His research interests include developing improved methods for making hydrological predictions in ungauged catchments and understanding the spatial variability in hydrological response through measurement, conceptualisation and modelling of surface water and groundwater flow across landscape and temporal scales. 
Principal Scientist - Freshwater Ecology
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Paul holds a BSc Hons from Leicester University and an MSc in biological sciences from the University of Waikato and has a background in wetland and aquatic plant ecology. He specialises in freshwater biosecurity, especially risk assessment, developing strategies for the prevention of aquatic weed spread and protection of unimpacted water bodies, and designing and implementing eradication programmes for aquatic weeds. He works closely with a wide range of central and regional authorities in the field of biosecurity. He is also author/co-author of three books on the identification of common weeds, grasses, sedges, rushes and weed seeds in New Zealand. He also has experience in wetland ecology and conservation needs and management plans for nationally endangered aquatic and wetland plants. Paul joined NIWA in 1994 and was appointed Programme Leader – Freshwater Biosecurity in July 2015. He has been a Principal Scientist – Freshwater Ecology since 2004. He previously worked with the Ministry of Agriculture and Forestry coordinating eradication programmes for nationally important weeds.
Aquatic Biogeochemist
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Fleur is an aquatic biogeochemist with a MSc (Hons) in Biology and Environmental Planning from University of Waikato and a PhD in Physical Geography from Durham University, UK. She leads NIWAs Aquatic Rehabilitation and Protection research programme. Fleur joined NIWA’s aquatic plants group in 2002. She has a wide network of science and stakeholder relationships and she coordinated NIWA’s Envirolink research from 2014 to 2016. From 2010 to 2016 she led work to update the New Zealand instream plant and nutrient guidelines for Regional Councils. Her current research interests include evaluating the effectiveness of targeted riparian buffers, riparian shade effects on instream plants, aquatic plant ecology and management, seagrass restoration and seagrass responses to sediment impacts in estuaries. She is a founding member of the Australasian Seagrass Restoration Network.  
Principal Scientist - Catchment Processes
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Sandy Elliott applies mathematical techniques to address water quality issues, especially predicting the effects of diffuse pollution and its control at catchment scale. His background spans from experimental work on transport process in flumes and on hillslopes, to delivering national-scale catchment modelling software, and from urban areas to the coastal impacts. He has developed and modified several catchment models for water quality and applied these in a wide range of settings in New Zealand. His current interests include techniques for shifting across spatial and temporal prediction scales and providing practical catchment models suitable for managing water quality limits.
Principal Scientist - River and Coastal Geomorphology
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Murray specialises in sediment transport and related geomorphic processes in rivers and on coasts. He has a BSc Hons in geology, a BE Hons in civil engineering and a PhD focussing on coastal processes from the University of California. His research interests include river sediment loads and delivery to the coast, organic carbon yields of rivers, braided river processes, gravel coasts, morphodynamic modelling of rivers and shorelines, and using airborne LiDAR and other remote-sensing technologies for measuring river and coastal morphologic change. His current research focuses on the downstream impacts of dams and flow diversions on river morphology and coastal stability. He is also a Group Manager. 
Coastal and Estuarine Physical Processes Scientist
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Andrew specialises in estuarine sedimentology and sediment processes. He has a BSc and MSc (1st Class Hons) from the University of Auckland. His current research interests include the tracing of sources and fate of terrigenous sediments in estuaries. Recent projects include reconstruction of environmental changes using compound specific stable isotope and radioisotope techniques, investigating human impacts on estuarine sedimentation regimes, predicting effects of fine suspended sediments and dissolved substances on estuarine water clarity, and the biophysical processes and feedbacks driving mangrove-forest ecology and biogeomorphic evolution. Andrew applies techniques and understanding gained from research to assist regional councils with integrated catchment-estuary management.

Full Staff List

Position Email Phone (external)
Mrs Anathea Albert Enviromental Chemistry and Toxicology Technician +64-7-856-1723
Mrs Jade Arnold Hydrodynamics Technician +64-3-343-7852
Dr Cindy Baker Principal Scientist - Freshwater Fish +64-7-856-1774
Mr Jochen Bind Hydrodynamics and GIS Technician +64-3-343-8021
Dr Doug Booker Hydro-ecological Modeller +64-3-343-7848
Mr David Bremner Coastal and Estuarine Physical Processes Technician +64-7-859-1856
Mrs Helen Brider Algal Ecology Technician +64-7-859-1878
Ms Tracey Burton Freshwater Ecologist +64-7-859-1852
Mr Paul Champion Principal Scientist - Freshwater Ecology +64-7-856-1796
Dr Sue Clearwater Ecotoxicology Scientist +64-7-859-1835
Dr Daniel Collins Hydrologist +64-3-343-8033
Mr Kerry Costley Water Quality Technician +64-7-856-1780
Dr Rupert Craggs Principal Scientist - Aquatic Pollution +64-7-859-1807
Ms Glenys Croker Freshwater Ecology Technician +64-7-856-1717
Dr Shannan Crow Freshwater Fish Ecologist +64-3-343-7868
Dr Rob Davies-Colley Principal Scientist - Water Quality +64-7-856-1725
Ms Mary de Winton Freshwater Ecologist +64-7-856-1797
Dr Craig Depree Water Quality Scientist +64-7-856-1750
Mr Ralph Dickson Environmental Monitoring Technician +64-3-545-7733
Dr Jan Diettrich Software Developer +64-3-343-8076
Mr Maurice Duncan Hydrologist +64-3-343-7863
Dr Sandy Elliott Principal Scientist - Catchment Processes +64-7-859-1839
Dr Paul Franklin Freshwater Ecologist +64-7-859-1882
Dr Jennifer Gadd Aquatic Chemist +64-9-375-2058
Dr Eleanor Gee Freshwater Hydro-Ecologist +64-7-856-1710
Dr Max Gibbs Water Quality Scientist +64-7-856-1773
Dr George Griffiths Principal Scientist - Hydrology +64-3-343-7841
Mr Roddy Henderson Hydrologist +64-3-343-7873
Mr Stephan Heubeck Wastewater Energy Engineer +64-7-856-1766
Dr Chris Hickey Principal Scientist - Ecotoxicology and Environmental Chemistry +64-7-856-1713
Dr Murray Hicks Principal Scientist - River and Coastal Geomorphology +64-3-343-7872
Dr Deborah Hofstra Freshwater Ecologist +64-7-859-1812
Dr Clive Howard... Freshwater Scientist +64-3-343-7857
Dr Jo Hoyle River Geomorphologist +64-3-343-7810
Dr Neale Hudson Environmental Chemist +64-7-856-1772
Dr Andrew Hughes Land and Water Scientist +64-7-856-1794
Mr Christian Hyde Environmental Monitoring Technician +64-9-375-4535
Dr Phillip Jellyman Assistant Regional Manager - Christchurch +64-3-343-8052
Dr Cathy Kilroy Freshwater Ecologist +64-3-343-7883
Dr Alison Kohout Hydrodynamics Scientist +64-3-343-7842
Dr Emily Lane Hydrodynamics Scientist +64-3-343-7856
Dr Scott Larned Manager - Freshwater Research +64-3-343-7834
Mr Graeme Mackay Principal Technician - Environmental Monitoring +64-9-432-5502
Mr Mike Martin Principal Technician - Ecotoxicology +64-7-856-1768
Dr Fleur Matheson Aquatic Biogeochemist +64-7-856-1776
Mr Graham McBride Principal Scientist - Water Quality +64-7-856-1726
Dr Alistair McK... Hydrologist +64-3-343-7870
Dr Lucy McKergow Land and Water Scientist +64-7-856-1741
Ms Juliet Milne Resource Management Scientist +64-4-386-0901
Mr Jonathan Moores Urban Aquatic Scientist +64-9-375-2043
Mr Greg Olsen Principal Technician - Environmental Chemistry +64-7-856-1781
Dr Chris Palliser Catchment Modeller +64-7-856-1748
Dr Jason Park Wastewater Scientist +64-7-856-1777
Mr Pete Pattinson Environmental Monitoring Technician +64-9-375-2077
Mr George Payne Principal Technician - Water Quality +64-7-856-1767
Dr David Plew Hydrodynamics Scientist +64-3-343-7801
Dr John Quinn Chief Scientist - Freshwater and Estuaries +64-7-856-1735
Miss Darcel Rickard Environmental Research/Science Communication +64-7-859-1869
Dr Helen Rouse Regional Manager - Christchurch and Nelson +64-3-343-8037
Dr Dave Rowe Emeritus - Freshwater Ecologist +64-7-856-1757
Mr Karl Safi Algal Ecologist +64-7-856-1716
Dr Annette Semadeni-Davies Urban Aquatic Scientist +64-9-375-4532
Dr Ude Shankar GIS Specialist +64-3-343-7892
Dr Shailesh Singh Hydrologist +64-3-343-8053
Dr Graeme Smart Principal Scientist - Natural Hazards and Hydrodynamics +64-3-343-7851
Mr Brian Smith Freshwater Biologist +64-7-856-1756
Dr Bob Spigel Hydrodynamics Scientist +64-3-343-8020
Dr MS Srinivasan Principal Scientist - Catchment Hydrology +64-3-343-8031
Dr Richard Storey Freshwater Ecologist +64-7-859-1880
Dr Rebecca Stott Environmental Health - Microbiology Scientist +64-7-859-1892
Mr James Sukias Wastewater Scientist +64-7-856-1715
Mr Colin Sutton Fisheries Technician +64-3-545-7738
Dr Andrew Swales Coastal and Estuarine Physical Processes Scientist +64-7-856-1761
Dr Chris Tanner Principal Scientist - Aquatic Pollution +64-7-856-1792
Mr Aleki Taumoepeau Aquatic Biology Technician +64-7-856-1708
Mrs Karen Thompson Enviromental Chemistry and Toxicology Technician +64-7-859-1895
Dr Amanda Valois Freshwater Ecologist +64-7-856-1795
Dr Piet Verburg Lake Scientist +64-7-856-1787
Mr Sanjay Wadhwa GIS Analyst +64-7-859-1813
Mr Jeremy Walsh Hydrodynamics Engineer +64-3-343-7877
Dr Bob Wilcock Environmental Chemist +64-7-856-1743
Mr Ben Woodward Biogeochemist +64-7-856-1754
Dr Sharleen Yalden Environmental Modeller +64-9-375-2032
Dr Jing Yang Hydrology Scientist +64-3-343-7840
Mr Richard Yates Environmental Electronics Technician +64-7-856-1733
Dr Christian Zammit Hydrologist +64-3-343-7879