Lake Omapere

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Lake Omapere
NZ-Northland plain map2.png
Disc Plain red.svg
Lake Omapere
Location Far North District, Northland Region, North Island
Coordinates 35°21′S173°47′E / 35.350°S 173.783°E / -35.350; 173.783 Coordinates: 35°21′S173°47′E / 35.350°S 173.783°E / -35.350; 173.783
Primary outflows Utakura River
Catchment area 3,392.8 hectares (8,384 acres)
Basin  countriesNew Zealand
Max. length5 km (3.1 mi)
Surface area1,231.5 hectares (3,043 acres)
Max. depth2–3 m (6.6–9.8 ft)
Surface elevation237 metres (778 ft)

Lake Omapere is the largest lake in the Northland Region of New Zealand. It is located to the North of Kaikohe.

Contents

The lake sits within the Kaikohe-Bay of Islands volcanic field. The lake was formed when an ancient lava flow blocked a valley, forming the northern shoreline. [1] [2] It is five km in length and covers 12.3 km², however it is only 2.6 metres deep (and as low as 1.5 m during summer). The lake has few inflow streams, mostly in the southern part of the lake. The Utakura River (south-western margin) is the main outflow which goes to the Hokianga Harbour. The lake catchment is predominantly pasture, with a few areas of native scrub and mature bush. [3]

Culture and history

Lake Ōmāpere is of great cultural and environmental value to Māori tangata whenua. [4]

In May 1845 a battle occurred during the Flagstaff War at the pā of Hone Heke at Puketutu (Te Mawhe Pā) on the shores of Lake Omapere. [5]

Water quality and ecology

The water quality in the lake is generally poor and the lake is prone to blooms of toxic algae. [6] The lake is monitored by Northland Regional Council, and the environmental information can be viewed on the LAWA website. [7]

The Lake Omapere Restoration and Management Project aims to develop and implement a voluntary lake management strategy that will work towards improving the health of the lake and help assist the Lake Omapere Trustees in their role as kaitiaki. [8]

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References

  1. "Northland Regional Council State of the Environment Report 2002 - The State of the Lakes of Northland" (PDF). Northland Regional Council. Retrieved 27 April 2020.
  2. "OMAPERE, LAKE" . Retrieved 27 April 2020.
  3. "Northland Lakes Ecological Status 2010". Northland Regional Council. Retrieved 27 April 2020.
  4. "Lake Ōmāpere and the Utakura River". niwa.co.nz. Retrieved 27 April 2020.
  5. "Puketutu and Te Ahuahu - Northern War". Ministry for Culture and Heritage - NZ History online. 3 April 2009. Retrieved 1 April 2012.
  6. "Lake Omapere". Northland Regional Council. Retrieved 27 April 2020.
  7. "Lake Omapere Water Quality". Land, Air, Water Aotearoa (LAWA). Retrieved 2020-04-27.
  8. "Lake Omapere Restoration". Northland Regional Council. Archived from the original on 8 August 2011. Retrieved 27 September 2011.