biology

Salvelinus killinensis

Salvelinus killinensis is a biology 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 Salvelinus killinensis rather than just read about it. In short: Salvelinus killinensis, also known as Haddy charr, is a variety of charr found in certain lakes in Scotland. Salvelinus killinensis lives in Loch Killin (Inverness-shire), after which it is named.

Key takeaways

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

Reference excerpt

Salvelinus killinensis, also known as Haddy charr, is a variety of charr found in certain lakes in Scotland. Salvelinus killinensis lives in Loch Killin (Inverness-shire), after which it is named. It is also found in Loch Doine (Trossachs) and perhaps in Loch Builg (Cairngorms) as well. It lives in the deeper regions of the lakes, moving to shallower waters only during the spawning season. Recently the presence of this charr has been reported in several other lakes of Scotland, although it may be not be Salvelinus killinensis, but another similar species.

Taxonomy The taxonomy of charrs is controversial. The Scottish authorities follow the practice which considers all the 200 Scottish charr populations, including that of Loch Killin, belonging to the single widespread circumpolar species Salvelinus alpinus (the Arctic charr). The IUCN Red List however follows division of Scottish (and other) charrs to several local species. In this view other putative Scottish charr species include Salvelinus gracillimus, Salvelinus mallochi, Salvelinus struanensis and Salvelinus youngeri, and further species would exist elsewhere in the UK and Ireland.

Description Salvelinus killinensis grows to a length of 16 in (41 cm). The snout is blunt, and the upper jaw is slightly longer than the lower jaw. The dorsal surface is dull, olive-grey or bluish-grey with pale spots, shading to yellowish-white on the belly. The fins are yellowish to reddish-brown, with a white margin on the front of the anal and pelvic fins.

Ecology This fish lives in the deepest parts of Loch Killin, which has a maximum depth of 67 ft (20 m). The only time it is seen is around September, when it moves to shallow waters to spawn. It feeds on such invertebrate prey as insect larvae, molluscs and crustaceans.

References

External links Photo of Salvelinus killinensis

Illustrations

Worked examples

Example 1 — a first encounter with Salvelinus killinensis

Start with the simplest possible case. Write down what Salvelinus killinensis claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 Salvelinus killinensis 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 Salvelinus killinensis 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 Salvelinus killinensis

In research: Salvelinus killinensis appears in biology 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 Salvelinus killinensis 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: Salvelinus killinensis is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cold water fish, Endemic fauna of Scotland, Fish described in 1865, so understanding it makes those chapters shorter.
In everyday life: Look for Salvelinus killinensis 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 Salvelinus killinensis in 20 minutes

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

Frequently asked questions

What is Salvelinus killinensis in simple terms?

Salvelinus killinensis, also known as Haddy charr, is a variety of charr found in certain lakes in Scotland. Salvelinus killinensis lives in Loch Killin (Inverness-shire), after which it is named.

Why does Salvelinus killinensis matter?

Because it connects several biology 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 Salvelinus killinensis?

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 Salvelinus killinensis.