earth science

Meretrix taiwanica

Meretrix taiwanica 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 Meretrix taiwanica rather than just read about it. In short: Meretrix taiwanica is a species of clam indigenous to Taiwan and China. In Taiwan, it was misidentified as Meretrix lusoria until 2023.

Key takeaways

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

Reference excerpt

Meretrix taiwanica is a species of clam indigenous to Taiwan and China. In Taiwan, it was misidentified as Meretrix lusoria until 2023.

Description The shell color is highly variable from yellow-white to dark red-brown.

Genomics A telomere-to-telomere, haplotype-resolved chromosome-level genome assembly of Meretrix taiwanica was published in 2026. The assembled genome spans approximately 1.01 Gb and is organized into 19 chromosomes in each haplotype. BUSCO analysis of the diploid assembly indicated a completeness of 92.8%. A total of 23,320 and 23,598 protein-coding genes were predicted in the two haplotypes. This represented the first telomere-to-telomere reference genome published for the species.

Distribution and habitat

Meretrix taiwanica is found in Taiwan and along the coast of southern China. It is commonly found in sandy estuaries associated with mangroves.

Use Like similar Meretrix species, M. taiwanica is farmed commercially for food. 49,501 tons of "M. lusoria", now identified as M. taiwanica, was produced in the year of 2019 in Taiwan.

Taxonomy The clams present in Taiwan was misidentified as Meretrix lusoria or M. meretrix until 2023. Scientists conducting research on what they believed to be M. lusoria in the Tamsui River sent samples for genetic analysis and discovered that they were a genetically distinct species. M. lusoria was introduced into Taiwan for commercial cultivation during the Japanese colonial period and was believed to have outcompeted native clams. However, the new data suggests that M. lusoria were outcompeted by native M. taiwanica and died out soon after introduction. An earlier research by Chinese scientists had already identified two separate lineages of M. petechialis in 2017. The 2023 study by Taiwanese scientists subsequently renamed the southern lineages as a separate species M. taiwanica.

Illustrations

Worked examples

Example 1 — a first encounter with Meretrix taiwanica

Start with the simplest possible case. Write down what Meretrix taiwanica 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 Meretrix taiwanica 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 Meretrix taiwanica 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 Meretrix taiwanica

In research: Meretrix taiwanica 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 Meretrix taiwanica 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: Meretrix taiwanica is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bivalves described in 2023, Bivalves of Asia, Marine molluscs of Asia, so understanding it makes those chapters shorter.
In everyday life: Look for Meretrix taiwanica 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 Meretrix taiwanica in 20 minutes

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

Frequently asked questions

What is Meretrix taiwanica in simple terms?

Meretrix taiwanica is a species of clam indigenous to Taiwan and China. In Taiwan, it was misidentified as Meretrix lusoria until 2023.

Why does Meretrix taiwanica 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 Meretrix taiwanica?

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 Meretrix taiwanica.