biology

Salvelinus evasus

Salvelinus evasus 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 evasus rather than just read about it. In short: Salvelinus evasus, is a vulnerable deepwater char or trout living in the Ammersee lake in Bavaria, Southern Germany. This fish lives in the great depths of the lake, below 80 m.

Key takeaways

Salvelinus evasus 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 evasus to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Salvelinus evasus from memory before moving on to harder problems.

Reference excerpt

Salvelinus evasus, is a vulnerable deepwater char or trout living in the Ammersee lake in Bavaria, Southern Germany. This fish lives in the great depths of the lake, below 80 m. It can reach up to a foot in length, about 30 cm. Salvelinus evasus has a blunt snout and the mouth in subinferior position. Its flanks are silvery to yellowish, often with paler spots. Unlike other deepwater char species its lower fins have white margins. Deepwater char are highly sensitive to changes in the quality of the water and the similar Salvelinus neocomensis was driven to extinction by eutrophication in other European lakes.

References

External links Jörg Freyhof; Maurice Kottelat (March 2005). "Salvelinus evasus sp. n., a charr from deep waters of Lake Ammersee, southern Germany (Teleostei: Salmonidae), with comments on two extinct species". Revue Suisse de Zoologie. 112 (1): 253–269. doi:10.5962/bhl.part.80298. "Il salmerino del lago Ammersee, Salvelinus evasus Freyhof & Kottelat 2005" (in English and Italian). Archived from the original on 23 June 2011. Jörg Freyhof and H. Brunken (2004). Erste Einschätzung der Verantwortlichkeit Deutschlands für die Erhaltung von Fischarten und Neunaugen [First assessment of the national conservation responsibility for freshwater lampreys and fishes in Germany] (PDF). Federal Agency for Nature Conservation (BfN).{{cite book}}: CS1 maint: url-status (link) "Fisheries in Upper Bavaria, the Deepwater Char" (in German).

Worked examples

Example 1 — a first encounter with Salvelinus evasus

Start with the simplest possible case. Write down what Salvelinus evasus 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 evasus 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 evasus 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 evasus

In research: Salvelinus evasus 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 evasus 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 evasus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ammersee, Cold water fish, Fish described in 2005, so understanding it makes those chapters shorter.
In everyday life: Look for Salvelinus evasus 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 evasus in 20 minutes

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

Frequently asked questions

What is Salvelinus evasus in simple terms?

Salvelinus evasus, is a vulnerable deepwater char or trout living in the Ammersee lake in Bavaria, Southern Germany. This fish lives in the great depths of the lake, below 80 m.

Why does Salvelinus evasus 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 evasus?

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 evasus.