biology

Lamellodiscus

Lamellodiscus 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 Lamellodiscus rather than just read about it. In short: Lamellodiscus is a genus of monopisthocotylean monogeneans in the family Diplectanidae; all species of Lamellodiscus are small worms, parasitic on the gills of teleost fish. The type-species of the genus is Lamellodiscus typicus Johnston & Tiegs, 1922, a parasite of a sparid fish caught in Moreton Bay, Queensland, Australia.

Key takeaways

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

Reference excerpt

Lamellodiscus is a genus of monopisthocotylean monogeneans in the family Diplectanidae; all species of Lamellodiscus are small worms, parasitic on the gills of teleost fish. The type-species of the genus is Lamellodiscus typicus Johnston & Tiegs, 1922, a parasite of a sparid fish caught in Moreton Bay, Queensland, Australia.

Etymology T. Harvey Johnston & Oscar Werner Tiegs, who created the genus in 1922, did not formally explain the etymology of the new name. However, their definition of the new genus "disc well developed, with the accessory locomotory disc (squamodisc) peculiarly modified in such a way as to present numerous concentric rows consisting each of a pair of laterally elongated lamellae" shows that the name refers to the lamellae of the squamodisc (an attachment organ). Such an organ is now called a lamellodisc.

Hosts Hosts of Lamellodiscus species are mainly sparids and lethrinids, with very rare cases reported from centracanthids, pomacanthids and pomacentrids.

Species Species include:

References

Illustrations

Worked examples

Example 1 — a first encounter with Lamellodiscus

Start with the simplest possible case. Write down what Lamellodiscus 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 Lamellodiscus 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 Lamellodiscus 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 Lamellodiscus

In research: Lamellodiscus 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 Lamellodiscus 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: Lamellodiscus is common in secondary-school and first-year university syllabi. It links to neighbouring topics Diplectanidae, Monogenea genera, Parasites of fish, so understanding it makes those chapters shorter.
In everyday life: Look for Lamellodiscus 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 Lamellodiscus in 20 minutes

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

Frequently asked questions

What is Lamellodiscus in simple terms?

Why does Lamellodiscus 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 Lamellodiscus?

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 Lamellodiscus.