Otago Regional Council’s Response to Lake Snow
A Planners Evaluation
Regionals Council ability to response to invasive species under the Biosecurity Act 1993 is essential to protecting New Zealand’s economy, environment and society. Otago Regional Council response to usual phenomenon lake snow in Otago is investigated as a case study approach through triangulation of document analysis and informal discussions. The findings highlight the implementation ‘gaps’ and challenges encountered by one regional council through identification, researching and managing the nuisance algae.
Environmental Management 15(5), 603-612.
Biosecurity Act 1993. Wellington, NZ: New Zealand Parliament
Biosecurity New Zealand. (2006). Risk Analysis Procedures (Version 1). Ministry of Agriculture and
Forestry. Retrieved from http://www.piat.org.nz/uploads/PIAT_content/pdfs/risk-analysis
Drage, J & Cheyne, C. (2016). Local Government in New Zealand: Challenges and Choices. New
Zealand, Dunmore Publishing Limited.
Hazardous Substances and New Organisms Act 1996. Wellington, NZ: New Zealand Parliament
Kilroy, C and Robinson, K. (2017). Testing “Check, Clean, Dry” decontamination procedures:
Trails on “Lake Snow” (Lindavia intermedia). Christchurch, NZ: National Institute of Water &
Atmospheric Research Ltd
Mitchell, C. (2017, July). ‘Lake Snot’ algae now in at least a dozen South Island Lakes. Stuff.
Retrieved from https://www.stuff.co.nz/environment/94376662/lake-snot-algae-now-in-at
Ministry for Primary Industries. (2017). Biosecurity. Retrieved from
National Invasive Species Information Centre (NISIC). (2016). What is an Invasive Species. Retrieved
Novis, P., Mitchell, C and Podolyan, A. (2017). Lindavia intermedia, the causative organism of
New Zealand lake snow: relationships between New Zealand, North American and European
populations according to molecular and morphological data. Lincoln, NZ: Landcare Research
Otago Regional Council. (2016). 2016 Council meetings and agendas. Retrieved from
Otago Regional Council. (2018). Lake Snow. Retrieved from https://www.orc.govt.nz/managing-our-
Parliamentary Commissioner for the Environment. (2002). New Zealand under Siege Parliamentary:
A review of the management of biosecurity risks to the environment. Retrieved from
Resource Management Act 1991. Wellington, NZ: New Zealand Parliament
Ryder, G. (2017). Lake Snow Technical Workshop, 20 December 2016: Report on workshop
discussions and outcomes, prepared from the Otago Regional Council. Dunedin, NZ: Ryder
Schallenberg, M. (2016). “Lake Snot” spreading among iconic South Island Lakes”. Scoop Media Ltd
Schallenberg, M. (2010, September 26). The Unusual Snow of Lake Wanaka. YouTube [video file]
Retrieved from https://www.youtube.com/watch?v=94xs81d6w9Q
Teulon, D.A.J., Boyd Wilson, K.S.H., Holton, A. and Ridley, G.S. (2012). Research on invasive pests and
diseases in New Zealand and the law. New Zealand Plant Protection 65, 281-288
Waterworth, K. (2017a, July 8). Lake snow’s origins key to way forward. Otago Daily Times.
Retrieved from https://www.odt.co.nz/regions/central-otago/lake-snow%E2%80%99s
Waterworth, K. (2017b, June 7). Scientists baffled at lack of lake’s ‘monitoring buoy’. Otago
Daily Times. Retrieved from https://www.odt.co.nz/regions/wanaka/scientist-baffled-lack
Waterworth, K. (2017c, June 8). ORC considering special lake buoy. Otago Daily Times.
Retrieved from https://www.odt.co.nz/regions/wanaka/orc-considering-special-lake-buoy
Waterworth, K. (2017d, August 23). ORC evaluating lake snow report. Otago Daily Times.
Retrieved from https://www.odt.co.nz/regions/wanaka/orc-evaluating-lake-snow-report
Wynne, B. (1992). Uncertainty and environmental learning: Reconceiving science and policy
in the preventative paradigm. Lancaster, UK: Butterworth-Heinemann Ltd
Yin, R. (2013). Case study research: design and methods (Ed. 5). California: Sage Publications
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