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Whanganui River

Whanganui River is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Whanganui River rather than just read about it. In short: The Whanganui River is a major river in the North Island of New Zealand. It is the country's third-longest river, and has special status owing to its importance to the region's Māori people.

Whanganui River — main illustration
Whanganui River — illustration

Key takeaways

  • Whanganui River belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Whanganui River to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Whanganui River from memory before moving on to harder problems.

Reference excerpt

The Whanganui River is a major river in the North Island of New Zealand. It is the country's third-longest river, and has special status owing to its importance to the region's Māori people. In March 2017 it became the world's second natural resource (after Te Urewera) to be given its own legal identity, with the rights, duties and liabilities of a legal person. The Whanganui Treaty settlement brought the longest-running litigation in New Zealand history to an end.

Geography With a length of 290 kilometres (180 mi), the Whanganui is the country's third-longest river. Much of the land to either side of the upper reaches is part of the Whanganui National Park, though the river itself is not part of the park. The river rises on the northern slopes of Mount Tongariro, one of the three active volcanoes of the central plateau, close to Lake Rotoaira. It flows to the north-west before turning south-west at Taumarunui. From here it runs through the rough, bush-clad hill country of the King Country before turning south-east and flowing past the small settlements of Pipiriki and Jerusalem, before reaching the coast at the city of Whanganui. It is one of the country's longest navigable rivers. The river valley changed in the 1843 Wanganui earthquake. In 1975, a minor eruption from Mount Ruapehu spilled some of the contents from the Ruapehu Crater Lake (the same root cause of the Tangiwai disaster). This toxic water entered the Whanganui River and had the effect of killing much of the fish life downstream. In the aftermath of the poisoning, eels as large as 8.2 kilograms (18 lb) and trout as large as 2.3 kilograms (5.1 lb) were washed up dead along the banks of the river. The tributary Whakapapa River had fish losses due to a lahar from Ruapehu in April 1975. This possibly had effects downstream.

Tributaries

History

Māori legend explains the formation of the river in the Mount Taranaki legend. When Mount Taranaki left the central plateau for the coast, the land was split open, and the river filled the rift. Another Māori legend explains that after Māui caught the giant fish that was to become the North Island of New Zealand, known as Te Ika-a-Māui, he prayed to Ranginui who then sent two tear drops to land on Māui's fish. These two tear drops then became the rivers Whanganui and Waikato. According to Māori tradition, the river was first explored by Tamatea, one of the leaders of the original migration to the new land, who travelled up the river and on to Lake Taupō. Many places along the river are named in his honour. The Whanganui River was an important communication route to the central North Island, both for Māori and for settlers, despite many stretches of white water and over 200 rapids. Prior to the arrival of Europeans, the area around the Whanganui was densely inhabited and with the arrival of the colonial settlers, the area near the river's mouth became a major trading post. Although it was already a significant route to the interior, the major development of the river as a trade route was by Alexander Hatrick, who started the first regular steam-boat service in 1892. The service eventually ran to Taumarunui where rail and coach services connected with points north. One of Hatrick's original boats, paddle-steamer PS Waimarie, has been restored and runs scheduled sailings in Whanganui. Another of the Hatrick boats, MV Wairua, has also been restored and can be seen on the river. During the early 20th century, the Wanganui River, as it was then called, was one of the country's top tourist attractions, its rugged beauty and the Māori kāinga (villages) that dotted the banks attracting thousands of tourists a year. With the completion of the North Island Main Trunk railway, the need for the steamboat route to the north greatly diminished, and the main economic activity of the river area became forestry. During the 1930s, attempts were made to open the river valley up as farmland, but they were not successful. One legacy of that time is the Bridge to Nowhere, built to provide access to settlements long since abandoned. In 1912–13 the French filmmaker Gaston Méliès shot a (now lost) documentary film The River Wanganui about the river, calling it the Rhine of New Zealand. The settlement of Jerusalem is of particular note. Jerusalem was home to two famous New Zealanders, Mother Mary Joseph Aubert, whose Catholic mission is still located at Jerusalem, and New Zealand poet James K. Baxter, who established a commune at the settlement in 1970. Other settlements are Tieke Kāinga, Pipiriki, Rānana, Matahiwi, and Koriniti.

Taonga and Māori land claims The river is of special and spiritual importance for Māori, who also refer to it as Te awa tupua. It was the home for a large proportion of Māori villages in pre-European times. As such, it is regarded as taonga, a special treasure. Local iwi first petitioned Parliament in the 1870s, and efforts have since been made to safeguard the river and give it the respect it deserves. For the same reason, the river has been one of the most fiercely contested regions of the country in claims before the Waitangi Tribunal for the return of tribal lands. The Whanganui River claim is heralded as the longest-running legal case in New Zealand history with petitions and court action in the 1930s, Waitangi Tribunal hearings in the 1990s, the ongoing Tieke Marae land occupation since 1993, and the highly publicised Moutoa Gardens occupation in 1995. On 30 August 2012 agreement was reached that entitled the Whanganui River to a legal identity, a first in the world, and on 15 March 2017 the relevant settlement was passed into law (Te Awa Tupua (Whanganui River Claims Settlement) Act 2017) by the New Zealand Parliament. Chris Finlayson, the Minister for Treaty of Waitangi Negotiations, said the river would have an identity "with all the corresponding rights, duties and liabilities of a legal person". He said some people would consider it strange, but it is "no stranger than family trusts, or companies, or incorporated societies." The bill finalised 140-year-old negotiations between Māori and the government. The river will be represented by two officials, one from Māori and the other from the government.

… excerpt ends here. Continue reading the full article.

Illustrations

Whanganui River illustration
Whanganui River illustration
Whanganui River: Kawana flour mill, 1854 (restored), Matahiwi
Kawana flour mill, 1854 (restored), Matahiwi
Whanganui River: Blue duck (whio) at Staglands, Akatarawa, New Zealand
Blue duck (whio) at Staglands, Akatarawa, New Zealand
Whanganui River: One of the many Māori marae along the Whanganui River
One of the many Māori marae along the Whanganui River

Worked examples

Example 1 — a first encounter with Whanganui River

Start with the simplest possible case. Write down what Whanganui River claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Whanganui River before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Whanganui River ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Whanganui River

In research
Whanganui River appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Whanganui River in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Whanganui River is common in secondary-school and first-year university syllabi. It links to neighbouring topics Environmental personhood, Rivers of Manawatū-Whanganui, Rivers of New Zealand, so understanding it makes those chapters shorter.
In everyday life
Look for Whanganui River outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Whanganui River in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Whanganui River means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Whanganui River out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Whanganui River in simple terms?

The Whanganui River is a major river in the North Island of New Zealand. It is the country's third-longest river, and has special status owing to its importance to the region's Māori people.

Why does Whanganui River matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Whanganui River?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Whanganui River.

Tags

  • Environmental personhood
  • Rivers of Manawatū-Whanganui
  • Rivers of New Zealand
  • Tongariro National Park
  • Whanganui National Park
  • Whanganui River

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