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Rangaunu Harbour

Coordinates: 34°56′S 173°17′E / 34.933°S 173.283°E / -34.933; 173.283
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Rangaunu Harbour
Location of Rangaunu Harbour
Location of Rangaunu Harbour
Rangaunu Harbour
LocationNorthland Region
Coordinates34°56′S 173°17′E / 34.933°S 173.283°E / -34.933; 173.283
Ocean/sea sourcesSouth Pacific Ocean
Basin countriesNew Zealand
Max. length13 kilometres (8.1 mi)
Max. width9.5 kilometres (5.9 mi)
Surface area115 square kilometres (44 sq mi)
References[1]

Rangaunu Harbour is a shallow harbour in the far north of New Zealand. It is situated on the east coast at the base of the Aupouri Peninsula. The name in Māori means "To pull out a shoal of fish".[2] With an area of 115 square kilometres (44 sq mi) it is the fifth-largest harbour in New Zealand.[3]

History

The Rangaunu Harbour was traditionally used as a managed shark fishery by Māori. Hapū would travel across Northland to the harbour, where kapetā (school sharks) could be fished only two days in a year.[4] The harbour was an important location for the late 19th/early 20th century kauri gum digging trade.[5]

Demographics

Historical population
YearPop.±% p.a.
200663—    
201363+0.00%
201845−6.51%
Source: [6]

Statistics New Zealand covers both Rangaunu Harbour and Houhora Harbour to the north in a statistical area called Inlets Far North District. It uses a statistical area called Rangaunu Harbour in the 2018 New Zealand census which covers the land west of the harbour between Awanui and Houhora Heads . That area is covered by the article on Aupouri Peninsula.

Inlets Far North District had a population of 45 at the 2018 New Zealand census, a decrease of 18 people (-28.6%) since the 2013 census and the 2006 census. There were 60 households. There were 27 males and 18 females, giving a sex ratio of 1.5 males per female. Of the total population, no people were aged up to 15 years, 3 (6.7%) were 15 to 29, 27 (60.0%) were 30 to 64, and 15 (33.3%) were 65 or older. Figures may not add up to the total due to rounding.

Ethnicities were 100.0% European/Pākehā. No other ethnicities were recorded for this area.

The percentage of people born overseas was 40.0, compared with 27.1% nationally.

Although some people objected to giving their religion, 53.3% had no religion, 40.0% were Christian, and no one gave any other religion.

Of those at least 15 years old, 15 (33.3%) people had a bachelor or higher degree, and 3 (6.7%) people had no formal qualifications. The median income was $20,600. The employment status of those at least 15 was that 12 (26.7%) people were employed full-time, 6 (13.3%) were part-time, and 3 (6.7%) were unemployed.[6]

Geography

The harbour entrance is a 2-kilometre (1.2 mi) wide channel to Rangaunu Bay to the north. The eastern side of the harbour is a 4 kilometres (2.5 mi) wide tombolo separating it from Doubtless Bay and connecting the hillier Karikari Peninsula to the mainland. The small settlement of Rangiputa sits on the eastern side of the harbour entrance, and Kaimaumau is located on the western shore about 5 kilometres (3.1 mi) southwest of the entrance. Unahi, at the mouth of the Awanui River, has a wharf and a fish processing plant which is now closed.[7]

An extensive wetland area, the Kaimaumau wetland, including the Motutangi Swamp Scientific Reserve, lies to the west of the harbour, north of Kaimaumau.[8]

The harbour has extensive areas of mangroves, tidal sand flats and areas of eelgrass, plus several small islands, with deeper channels between.

A number of rivers flow into the harbour. Clockwise from the entrance, these are:

Ecology

Rangaunu harbour contains about 15% of the mangrove habitat in New Zealand.[3] It is a habitat of international significance for migratory wading birds, with 10,000 birds of approximately 70 species using the harbour in the autumn. Birds observed to nest in the area include NZ dotterels, variable oystercatchers, black-backed gulls, red-billed gulls, white-fronted terns, Caspian terns, black shags, little shags, pied shags, pied stilts, white-faced herons, ducks and swans.[3]

Dolphins, killer whales,[9] and occasionally humpback whales[10][11] visit the harbor. Other cetacean species such as Bryde's whales, sperm whales, pilot whales, and false killer whales are known to come into Rangaunu Bay and around Karikari Peninsula, but very few whales actually appear into Rangaunu Harbour. The harbor environment is an ideal habitat for southern right whales,[12] and Rangaunu harbor might once have been a resting/calving ground for these coast-hugging whales.

Rangaunu harbor hosts a population of green sea turtles that are seasonal migrants into the harbor water regularly.[13] Whale sharks have been seen in the harbor with slow but increasing regularities.[14]

References

  1. ^ New Zealand 1:50000 Topographic Map series sheet AU26 – Waiharara
  2. ^ Wises New Zealand Guide, 7th Edition, 1979
  3. ^ a b c Brenda Hay & Coral Grant. "Marine Resources in Tai Tokerau". pp. Appendix 14: Rangaunu Harbour. Retrieved 4 March 2011.
  4. ^ Vennell, Robert (5 October 2022). Secrets of the Sea: The Story of New Zealand's Native Sea Creatures. HarperCollins Publishers. pp. 164–169. ISBN 978-1-77554-179-0. LCCN 2021388548. Wikidata Q114871191.
  5. ^ Hayward, Bruce W. (1989). Kauri Gum and the Gumdiggers. The Bush Press. p. 4. ISBN 0-908608-39-X.
  6. ^ a b "Statistical area 1 dataset for 2018 Census". Statistics New Zealand. March 2020. Inlets Far North District (100300). 2018 Census place summary: Inlets Far North District
  7. ^ "Unahi Wharf".
  8. ^ Hicks, D. L.; Campbell, D. J.; Atkinson, I. A. E. (2000). "Options for managing the Kaimaumau wetland, Northland, New Zealand" (PDF). Science for Conservation. 155: 1–75.
  9. ^ Mtait. 2014 Diver films encounter with pod of orcas. The Chronicle. retrieved on 03 June 2014
  10. ^ Hicker R. "Photo: Rangaunu Bay New Zealand". p. Rolf Hicker - Animal, Nature & Travel Photography. Retrieved 17 February 2015.
  11. ^ "This Amazing Place". Archived from the original on 26 January 2016. Retrieved 18 March 2016.
  12. ^ Torres G.L., Compton T., Fromant A., 2013 Habitat models of southern right whales, Hector's dolphin, and killer whales in New Zealand. NIWA. retrieved on 03 June 2014
  13. ^ Szabo M., 2011 Green turtle population in Rangaunu Harbour - DOC. BirdingNZ. retrieved on 03 June 2014
  14. ^ Duffy C., Atkinson P., 2004 Whale sharks in - New Zealand waters Archived 2012-12-07 at the Wayback Machine. Dive New Zealand. Department of Conservation. retrieved on 03 June 2014
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