ArticleslgStudy

biology

List of vulnerable fishes

List of vulnerable fishes 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 List of vulnerable fishes rather than just read about it. In short: In September 2016, the International Union for Conservation of Nature (IUCN) listed 1245 vulnerable fish species. Of all evaluated fish species, 8.1% are listed as vulnerable.

List of vulnerable fishes — main illustration
List of vulnerable fishes — illustration

Key takeaways

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

Reference excerpt

In September 2016, the International Union for Conservation of Nature (IUCN) listed 1245 vulnerable fish species. Of all evaluated fish species, 8.1% are listed as vulnerable. The IUCN also lists eight fish subspecies as vulnerable. Of the subpopulations of fishes evaluated by the IUCN, 18 species subpopulations have been assessed as vulnerable. For a species to be assessed as vulnerable to extinction the best available evidence must meet quantitative criteria set by the IUCN designed to reflect "a high risk of extinction in the wild". Endangered and critically endangered species also meet the quantitative criteria of vulnerable species, and are listed separately. See: List of endangered fishes, List of critically endangered fishes. Vulnerable, endangered and critically endangered species are collectively referred to as threatened species by the IUCN. Additionally 3191 fish species (21% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are intrinsically likely to be threatened, according to the IUCN. While the category of data deficient indicates that no assessment of extinction risk has been made for the taxa, the IUCN notes that it may be appropriate to give them "the same degree of attention as threatened taxa, at least until their status can be assessed." This is a complete list of vulnerable fish species and subspecies evaluated by the IUCN. Species and subspecies which have vulnerable subpopulations (or stocks) are indicated.

Lobe-finned fishes Indonesian coelacanth (Latimeria menadoensis)

Cartilaginous fishes Chondrichthyes includes sharks, rays, skates, and sawfish. There are 121 species and eight subpopulations of cartilaginous fish assessed as vulnerable.

Angelsharks

Mackerel sharks Species

Subpopulations

Shortfin mako shark (Isurus oxyrinchus) (2 subpopulations)

Rays and skates There are 74 species and one subpopulation in the order Rajiformes assessed as vulnerable.

Guitarfish species

Whiptail stingrays

Narcinids Species

Subpopulations

Apron ray (Discopyge tschudii) (1 subpopulation)

Skates

Skates

Other Rajiformes species

Ground sharks Species

Subpopulations

Carpet sharks

Squaliformes Species

Subpopulations

Spiny dogfish (Squalus acanthias) (2 subpopulations)

Chimaeras Ogilby's ghostshark (Hydrolagus ogilbyi)

Lampreys

Ray-finned fishes There are 1114 species, eight subspecies, and four subpopulations of ray-finned fish assessed as vulnerable.

Acipenseriformes Includes sturgeons and paddlefishes. Species

Subspecies

Gulf sturgeon (Acipenser oxyrinchus desotoi)

Salmoniformes Species

Subpopulations

Sockeye salmon (Oncorhynchus nerka) (3 subpopulations)

Silversides

Toothcarps There are 85 species and three subspecies of toothcarp assessed as vulnerable.

Goodeids

Pupfish species

Aplocheilids Pachypanchax arnoulti Pachypanchax patriciae

Rivulids

Nothobranchiids Species

Subspecies

Poeciliids

Fundulids

Cypriniformes Cypriniformes includes carps, minnows, loaches and relatives. There are 298 species and one subspecies in the order Cypriniformes assessed as vulnerable.

Hillstream loaches

True loaches

Cyprinids Species

Subspecies

Incilevrek baligi (Phoxinellus zeregi fahirae)

Suckers

Esociformes Includes pike and relatives. Species

Gasterosteiformes Includes sticklebacks and relatives. Species

Subpopulations

Little dragonfish (Eurypegasus draconis) (1 subpopulation) Longtail seamoth (Pegasus volitans) (2 subpopulations)

Osmeriformes Includes freshwater smelts and allies.

Catfishes There are 89 catfish species assessed as vulnerable.

Ictalurids

Sisorids

Loach catfishes

Claroteids

Airbreathing catfishes

Loricariids

Mochokids

Bagrids

Other catfish species

Batrachoidiformes

Perciformes There are 405 species, one subspecies, and one subpopulation in the order Perciformes assessed as vulnerable.

Gouramis

Cichlids Species

Subspecies

Sarotherodon galilaeus borkuanus

Percids

Epinephelids Species

Subpopulations

Gobies

Sparids

Sand stargazers

Sciaenids

Labrisomids

Serranids

Chaenopsids

Combtooth blennies

Wrasses

Threefin blennies

Other Perciformes species

Beloniformes

Synbranchiformes

Osteoglossiformes

Mormyrids

Gobiesociformes

Characiformes Species

Subspecies

Astyanax mexicanus jordani

Syngnathiformes Includes the pipefishes and seahorses.

Clupeiformes Species

Subspecies

Clupeonella abrau muhlisi

Scorpaeniformes

Ophidiiformes

Tetraodontiformes

Other ray-finned fish species

Hagfishes

See also Lists of IUCN Red List vulnerable species List of least concern fishes List of near threatened fishes List of endangered fishes List of critically endangered fishes List of recently extinct fishes List of data deficient fishes Sustainable seafood advisory lists and certification

References

Illustrations

List of vulnerable fishes: Vulnerable (VU) species are considered to be facing a high risk of extinction in the wild.
Vulnerable (VU) species are considered to be facing a high risk of extinction in the wild.

Worked examples

Example 1 — a first encounter with List of vulnerable fishes

Start with the simplest possible case. Write down what List of vulnerable fishes 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 List of vulnerable fishes 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 List of vulnerable fishes 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 List of vulnerable fishes

In research
List of vulnerable fishes 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 List of vulnerable fishes 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
List of vulnerable fishes is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fish by conservation status, IUCN Red List vulnerable species, Lists of animals by conservation status, so understanding it makes those chapters shorter.
In everyday life
Look for List of vulnerable fishes 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.

Affiliate

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

How to study List of vulnerable fishes in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what List of vulnerable fishes means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain List of vulnerable fishes out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of vulnerable fishes in simple terms?

In September 2016, the International Union for Conservation of Nature (IUCN) listed 1245 vulnerable fish species. Of all evaluated fish species, 8.1% are listed as vulnerable.

Why does List of vulnerable fishes 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 List of vulnerable fishes?

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 List of vulnerable fishes.

Tags

  • Fish by conservation status
  • IUCN Red List vulnerable species
  • Lists of animals by conservation status
  • Lists of fishes
  • Vulnerable fish

Keep exploring