biology

Han Nijssen

Han Nijssen 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 Han Nijssen rather than just read about it. In short: Han Nijssen (Amsterdam, October 28, 1935 – June 25, 2013) was a Dutch ichthyologist. Nijssen was born in Amsterdam and obtained his PhD at the University of Amsterdam in May 1970 with the dissertation Revision of the Surinam catfishes of the genus Corydoras.

Key takeaways

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

Reference excerpt

Han Nijssen (Amsterdam, October 28, 1935 – June 25, 2013) was a Dutch ichthyologist. Nijssen was born in Amsterdam and obtained his PhD at the University of Amsterdam in May 1970 with the dissertation Revision of the Surinam catfishes of the genus Corydoras. Later he was a curator at Zoölogisch Museum in Amsterdam. Nijssen worked extensively with fish from South America, and was the author of several species, e.g. Corydoras weitzmani and Corydoras xinguensis. Collaborating with Isaäc Isbrücker he described, among others, the group Hypancistrus and the species Hypancistrus zebra and Corydoras panda. He also collaborated with Sven O. Kullander.

Taxa named in his honor The species Corydoras nijsseni and Apistogramma nijsseni are named after him. Metaloricaria nijsseni is named after him. Hypomasticus nijsseni

Publications (incomplete) Han Nijssen & S.J. de Groot, De vissen van Nederland. (1987) Sven O. Kullander & Han Nijssen, The Cichlids of Surinam: Teleostei: Labroidei (1989) Han Nijssen, Veldgids Zeevissen ("Field guide for saltwater fish"), KNNV 2009, ISBN 9789050111393

See also Category:Taxa named by Han Nijssen

References

Worked examples

Example 1 — a first encounter with Han Nijssen

Start with the simplest possible case. Write down what Han Nijssen 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 Han Nijssen 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 Han Nijssen 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 Han Nijssen

In research: Han Nijssen 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 Han Nijssen 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: Han Nijssen is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1935 births, 2013 deaths, Dutch biologist stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Han Nijssen 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 “Han Nijssen” →

Affiliate

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

How to study Han Nijssen in 20 minutes

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

Frequently asked questions

What is Han Nijssen in simple terms?

Why does Han Nijssen 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 Han Nijssen?

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 Han Nijssen.