science

Karanji Lake

Karanji Lake 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 Karanji Lake rather than just read about it. In short: Karanji Lake (also known as Fountain Lake) is a lake located in the city of Mysore in the state of Karnataka, India. The lake is surrounded by a nature park consisting of a butterfly park and a walk-through aviary.

Key takeaways

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

Reference excerpt

Karanji Lake (also known as Fountain Lake) is a lake located in the city of Mysore in the state of Karnataka, India. The lake is surrounded by a nature park consisting of a butterfly park and a walk-through aviary. This aviary is the biggest 'walk-through aviary' in India. There is also a museum, the Regional Museum of Natural History which is located on the banks of this lake. The total area of Karanji lake is 90 hectares. While waterspread area is about 55 hectares, the foreshore area measures about 35 hectares. Karanji lake is owned by the Mysore Zoo Authority. Mysore Zoo gets a revenue of an average of Rs. 50000 per day from ticket sales to enthusiasts who visit this lake.

History Karanji Lake was one of the favourite haunts of migratory birds like herons and egrets. But the lake started getting polluted when sewage from the nearby residential areas were let into the lake. This pollution led to the destruction of aquatic life in the lake and with the food-source getting depleted, the migratory birds started to avoid the lake.

Restoration

In order to prevent the destruction of this lake and to renovate it, help was sought from the Asian Development Bank (ADB), Karnataka Urban Infrastructure Development Finance Corporation (KUIDFC) and Zoo Authority of Karnataka (ZAK). These three organisations came together and undertook the restoration activities of this lake. Financial help of Rs. 12 million was provided by ADB and ZAK undertook the restoration work with the co-ordination of KUIDFC. The first step undertaken was to stop the sewage from entering the lake. Other restoration activities included removal of polluted silt, de-weeding of the entire lake surface, removing 30 cm of silt from the lake, restoration of feeder channels, construction of a jetty to start boating facility, and the construction of a bridge to the newly created 'butterfly park'. A watch tower was also constructed to view the birds and study their behaviour. A giant fountain which can spew water up to 40 feet has been recently added as an attraction. A nursery of medicinal plants is also present here.

Aviary The aviary constructed on the shore of the lake has a height of 20 m, length of 60 m and width of 40 m making it India's biggest walk-through aviary. The aviary was set up at a cost of Rs 3.8 million. It includes an artificial water fall and two small water bodies. Water from the Karanji lake is pumped inside the aviary in the form of a stream while the used water is discharged into the lake. It has about 40–50 birds of 17 species. Hornbills, peacocks, white-peacocks, turkeys and black swans are some of the birds found in this aviary. This aviary was temporarily closed in the year 2006 to prevent the break-out of bird flu.

Birds

Some of the common migratory birds found here are grey pelican, painted stork, ibis, cormorant, egret, etc. which nest on trees in the islands present in the lake. Recent survey of birds have indicated 147 species. Indian peacocks and peahens are the most common birds present here, given that it is the National bird of India. Herons, Asian open bill storks, egrets, red wattle lapwing, sandpipers, rose ringed parakeet, black drongo, brown shrike, red-whiskered bulbul, booted warbler, sunbird and greenish warbler are some of the other species of birds found here.

Butterfly park

The butterfly park has been created on a small island within the Karanji lake. About 45 species of butterflies have been identified here. With the help of a botanist, appropriate species of host plants and nectar plants essential for the breeding of butterflies were selected and planted within the island. These plants have also been brought from hillstations and other regions like Malnad.

Regional Museum of Natural History (RMNH)

The Regional Museum of Natural History was inaugurated on 20 May 1995. The broad objectives of the Museum are:

Depict floral, faunal and geological wealth of the southern region of India. Depict ecological interrelationship among plants and animals with emphasis on conservation of Nature and Natural Resources Provide facility for school children on curriculum-based studies in biology and geology with emphasis on environmental aspect. Develop programs for masses to create environmental awareness

Illustrations

Worked examples

Example 1 — a first encounter with Karanji Lake

Start with the simplest possible case. Write down what Karanji Lake 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 Karanji Lake 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 Karanji Lake 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 Karanji Lake

In research: Karanji Lake 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 Karanji Lake 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: Karanji Lake is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aviaries, Lakes of Mysore, so understanding it makes those chapters shorter.
In everyday life: Look for Karanji Lake 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 Karanji Lake in 20 minutes

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

Frequently asked questions

What is Karanji Lake in simple terms?

Why does Karanji Lake 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 Karanji Lake?

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 Karanji Lake.