earth science

Scrobicularia plana

Scrobicularia plana is a earth 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 Scrobicularia plana rather than just read about it. In short: Scrobicularia plana, the peppery furrow shell, is a bivalve mollusc belonging to the family Semelidae. Taxonomy Although Scrobicularia plana is the only species currently recognized by ITIS in the genus Scrobicularia; World Register of Marine Species recognises another species, Scrobicularia cottardi as well as some nomen dubia, as does the BioLib.

Key takeaways

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

Reference excerpt

Scrobicularia plana, the peppery furrow shell, is a bivalve mollusc belonging to the family Semelidae.

Taxonomy Although Scrobicularia plana is the only species currently recognized by ITIS in the genus Scrobicularia; World Register of Marine Species recognises another species, Scrobicularia cottardi as well as some nomen dubia, as does the BioLib. The genus Scrobicularia is sometimes placed as the sole genus in a family, Scrobicularidae. It is now often placed instead in the related family Semelidae, as shown in the infobox. However this placement may change as molecular systematics provides new insights into the cladistics of the bivalves.

Description The shell can be anything from white through yellowish to a pale brownish-grey in colour, up to 6.5 cm in diameter. Its interior is nacreous and white or yellowish in colour. The shell is thin but quite deep, with circular closely packed growth ridges. It is a filter feeder, with long siphons, burying itself up to 20 cm deep in sand or mud. When buried, it leaves star-shaped markings on the surface, and specimens can be found by looking for these. If the siphons are browsed by fish or other predators, they regenerate in a few days.

Distribution and habitat This species is commonly found at quite high densities on sandy or muddy sea coasts and estuaries in northern Europe, the Mediterranean and West Africa.

Commercial use The peppery furrow shell is edible and can be found in some fish shops in France, where they are called lavignons.

References

External links Movie clip of peppery furrow shell feeding

Illustrations

Worked examples

Example 1 — a first encounter with Scrobicularia plana

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

In research: Scrobicularia plana appears in earth 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 Scrobicularia plana 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: Scrobicularia plana is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bivalve stubs, Bivalves described in 1778, Molluscs of the Atlantic Ocean, so understanding it makes those chapters shorter.
In everyday life: Look for Scrobicularia plana 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 Scrobicularia plana in 20 minutes

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

Frequently asked questions

What is Scrobicularia plana in simple terms?

Scrobicularia plana, the peppery furrow shell, is a bivalve mollusc belonging to the family Semelidae. Taxonomy Although Scrobicularia plana is the only species currently recognized by ITIS in the genus Scrobicularia; World Register of Marine Species recognises another species, Scrobicularia cottar…

Why does Scrobicularia plana matter?

Because it connects several earth 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 Scrobicularia plana?

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 Scrobicularia plana.