Anglerfish
Anglerfish are a group of ray-finned fish in the order Lophiiformes, known for a modified dorsal-fin spine used as a lure to attract prey.
Anglerfish are a group of ray-finned fish in the order Lophiiformes, known for a modified dorsal-fin spine used as a lure to attract prey. They include many species found in deep water, though some live in shallower marine habitats. The group is noted for diverse body forms, carnivorous diets, and unusual reproductive strategies in some deep-sea species.
Classification
Anglerfish belong to the order Lophiiformes and include multiple families and species. They are ray-finned fishes with a wide range of body forms and habitats.
Physical characteristics
Many anglerfish have large heads, expandable mouths, and a distinctive lure near the mouth. In several deep-sea species, the lure is bioluminescent and used to attract prey.
Habitat and distribution
Anglerfish are found in oceans worldwide. Some species live near the seafloor in deep water, while others inhabit reefs, continental shelves, or shallow tropical waters.
Diet and feeding
Anglerfish are predators that eat fish, crustaceans, cephalopods, and other small marine organisms. They often ambush prey rather than pursue it actively.
Reproduction
Some deep-sea anglerfish have unusual reproductive biology, including very small males in certain species. In some cases, males attach to females for reproduction.
Key facts
- Anglerfish are a diverse order of fish rather than a single species.
- Their most distinctive trait is a lure formed from a modified dorsal-fin spine.
- Many species live in deep-sea habitats, but some occur in shallower waters.
- They are carnivorous and feed on fish and other marine animals.
- Some deep-sea species show extreme sexual dimorphism, with much smaller males than females.
Anglerfish are relevant to Canadian readers through marine biology, ocean science, and North Atlantic and Arctic-adjacent research and fisheries contexts, especially for deep-sea species and related fish such as monkfish.
Frequently asked questions
What is an anglerfish?
Are anglerfish a single species?
Where do anglerfish live?
What do anglerfish eat?
Why are anglerfish famous?
Do male and female anglerfish look the same?
References
- National Geographic — https://www.nationalgeographic.com/animals/fish/facts/anglerfishSupports: General description, habitat, diet, number of species, and lure-based predation
- Smithsonian Ocean — https://ocean.si.edu/ocean-life/fish/anglerfish-lure-prey-throughout-oceanSupports: Classification within Lophiiformes and distribution across shallow and deep marine habitats
- ScienceDirect Topics — https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/anglerfishSupports: Species diversity, habitats, and predatory feeding
- NAMEPA — https://namepa-website-media.s3.amazonaws.com/wp-content/uploads/2023/09/21134139/Anglerfish-Fact-Sheet-2.pdfSupports: Over 200 known species, deep-sea habitat, benthic habits, size, and lifespan
- Wikipedia — https://en.wikipedia.org/wiki/AnglerfishSupports: Order Lophiiformes and lure derived from modified dorsal fin ray