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Whakahokia te mauri o Oporoa – a documentary on Lake Oporoa

The Whakahokia te mauri o Oporoa documentary tells the story of Lake Oporoa. It celebrates the commitment of Rangitīkei iwi to enhancing the life force and ecological health of Lake Oporoa. Ngāti Hauiti kaumātua Neville Lomax draws upon oral history in recounting the journey taken by Matangi—an early Māori explorer who traversed and named places in the Rangitīkei. Following the flightpath of a huge flock of tūī, Matangi came upon Lake Oporoa—located close to the Rangitīkei River. Two of his children remain in the lake as kaitiaki (spiritual guardians), taking the form of raupō floating in search of the taonga (treasure) located within.

Partnering with Ngā Puna Rau o Rangitīkei, Lakes380 scientists have analysed lakebed sediment cores taken from Oporoa, producing a reconstruction of the lake’s environmental history through to its present degraded state. For manawhenua, imagining the future of Oporoa resembling the ‘abundance of life’ in which Matangi encountered it is only possible through renewing cultural and social connections and with full knowledge of the lake’s ecological health.

The Whakahokia te mauri o Oporoa documentary was produced by social scientist Charlotte Šunde (Cawthron) and videographer Bruce Foster (Airplane Studios) with guidance and input from Reece Martin (Ngāti Whitikaupeka).

Read more about our work with Ngā Puna Rau o Rangitīkei.

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New manuscript on Rototoa (Auckland)

New manuscript on Lake Rototoa in Auckland has bee New manuscript on Lake Rototoa in Auckland has been published!!

A new manuscript titled - Resolving 500 years of anthropogenic impacts in a mesotrophic lake: Nutrients outweigh other drivers of lake change - led by Dr Rose Gregersen (Victoria University of Wellington) has been published in the prestigious journal Environmental Science & Technology.

The research explores the history of Rototoa, a lake in the Auckland region of Aotearoa-New Zealand. The researches combined sediment core analysis with historical data, and ecological experiments to determine what was causing the decline in lake health in recent decades. 

The researchers show that the health of the lake remained stable despite catchment deforestation and erosion, and the introduction of several non-native fish species. The most significant and sustained changes in lake health coincided with nitrogen and phosphorus fertilizers in the catchment.

Congratulations Rose on your excellent research!

Visit www.lakes380.com for a link to the full manuscript.

#Lakes380 #Cawthron #GNS #ScienceLife #NZscience #research #researchLife #VictoriaUniversityofWellington #Aucklandlakes #rototoa #paleolimnology #sedimentcores
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About

  • The Project
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  • Science Aims
  • Rohe Studies
    • Rangitīkei Iwi Rohe Study
    • Wairarapa Moana iwi rohe study
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