science

Ives Lake cisco

Ives Lake cisco 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 Ives Lake cisco rather than just read about it. In short: The Ives Lake cisco (Coregonus hubbsi) is a freshwater whitefish known to inhabit a single inland lake in the Upper Peninsula of Michigan. The species was last observed in 1983, although there is disagreement on whether it is distinct from Coregonus artedi.

Key takeaways

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

Reference excerpt

The Ives Lake cisco (Coregonus hubbsi) is a freshwater whitefish known to inhabit a single inland lake in the Upper Peninsula of Michigan. The species was last observed in 1983, although there is disagreement on whether it is distinct from Coregonus artedi. This taxon has been found only in Ives Lake, a lake in the Huron Mountains. The lake encompasses a radius of less than 1.5 miles (2.4 km).

Discovery With the cooperation of the Huron Mountain Club, specimens were first collected by Carl Leavitt Hubbs and Walter Koelz in 1924 and 1927. Koelz published their discovery through the University of Michigan in 1929, and designated the taxon as Leucichthys hubbsi. Koelz found the stream draining Ives Lake quickly dropped over 100 feet (30 m), and postulated that the stream's steepness had prevented faunal interchange since the time of Lake Algonquin.

Description Walter Koelz described Coregonous hubbsi in a 1929 publication titled "Leucichthys hubbsi, a new cisco, From Ives Lake, Marquette County, Michigan". The color was noted as silvery, with "underlying tones of pea-green and blue green" along with gray fins. Koelz claimed that the Ives Lake cisco was easily distinguishable from Coregonus artedi due to the long gill rakers of C. hubbsi. He reported that the Ives Lake cisco is smaller and has a less slender body than C. artedi.

Conservation status There has been scientific disagreement on whether or not the Ives Lake cisco is a distinct species from the widespread C. artedi; hence there is no consensus on the conservation status. A 2005 report from the Michigan Department of Natural Resources recommended that the Ives Lake cisco be removed from the list of "special-concern" species. However, a 2013 report from the same publisher gave the Ives Lake cisco a "critically imperiled" G-rank and S-rank for conservation status, and listed the fish as "extremely vulnerable" to climate change.

References

Illustrations

Worked examples

Example 1 — a first encounter with Ives Lake cisco

Start with the simplest possible case. Write down what Ives Lake cisco 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 Ives Lake cisco 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 Ives Lake cisco 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 Ives Lake cisco

In research: Ives Lake cisco 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 Ives Lake cisco 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: Ives Lake cisco is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cold water fish, Coregonus, Fish of the Great Lakes, so understanding it makes those chapters shorter.
In everyday life: Look for Ives Lake cisco 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Ives Lake cisco” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Ives Lake cisco in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Ives Lake cisco 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 Ives Lake cisco out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Ives Lake cisco in simple terms?

Why does Ives Lake cisco 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 Ives Lake cisco?

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 Ives Lake cisco.