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The Polychaeta /ˌpɒlɪˈkiːtə/, also known as the bristle worms or polychaetes, are a paraphyletic class of annelid worms, generally marine. Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made of chitin.
- What animals eat polychaete worms?
- Are polychaete predators?
- Which of the following is a polychaete animal?
- Are barnacles polychaete?
- What fish eats Polychaetes?
- Will a six line wrasse eat bristle worms?
- Why is nereis called a polychaete?
- What animals are in the class oligochaeta?
- What do polychaetes eat?
- What are 4 major traits that all polychaete worms have in common?
- What do polychaete larvae eat?
- Where are polychaetes found in the world?
- How do polychaetes survive in the wild?
What animals eat polychaete worms?
Polychaetes also include active predators, scavengers and grazers of algae. Many polychaetes are eaten by other polychaetes and other marine invertebrates as well as fish and wading birds.
Are polychaete predators?
The nereid polychaetes are free-moving predators that will consume large and small invertebrates using large proboscis jaws; they will also consume large amounts of detritus in the absence of prey items (Figure 5). Other families have filter-feeding and deposit-feeding representatives.
Which of the following is a polychaete animal?
Polychaetes, which include rag worms, lugworms, bloodworms, sea mice, and others, are marine worms notable for well-defined segmentation of the body.
Are barnacles polychaete?
Many rocky-shore species have adults that are sessile, including barnacles, zoanthids, tubicolous polychaete worms, ascidians, and macroalgae. ... Barnacles are a classic example.
What fish eats Polychaetes?
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Polychaetes can be incorporated in shrimp feed. One of the latest innovations of the company is a speciality feed for shrimp. The full range includes feeds that start at first-feeding of larvae to final grow-out, as well as providing speciality maturation feeds for shrimp brood stock.
Will a six line wrasse eat bristle worms?
Six line wrasses will eat some flatworms and segmented worms, like the bristle worm. ... Some eat them voraciously, others seem to ignore them.
Why is nereis called a polychaete?
Nereis possess setae and parapodia for locomotion. They may have two types of setae, which are found on the parapodia. ... Locomotor chaetae arefor crawling, and are the bristles thatare visible on the exterior of thePolychaeta. they are cylindrical in shape.
What animals are in the class oligochaeta?
Specifically, oligochaetes comprise the terrestrial megadrile earthworms (some of which are semiaquatic or fully aquatic), and freshwater or semiterrestrial microdrile forms, including the tubificids, pot worms and ice worms (Enchytraeidae), blackworms (Lumbriculidae) and several interstitial marine worms.
What do polychaetes eat?
Carnivorous polychaetes may feed on prey or carrion, and mollusk, crustaceans, ophiuroids and polychaetes fragments are often consumed [27, 33, 55]. Cannibalism is also found for some species [8, 9].
What are 4 major traits that all polychaete worms have in common?
Most have well developed, paired, paddle-like appendages (parapodia), well developed sense organs, and numerous setae (usually on the parapodia; "polychaete" means "many hairs").
What do polychaete larvae eat?
In the planktonic stage, they feed on phytoplankton, and are themselves eaten by larger nekton organisms.
Where are polychaetes found in the world?
Polychaetes are multi-segmented worms living in all environments in the world's oceans, present from abyssal depths to shallow estuaries and rocky shores, and even free swimming in open water. They are strictly aquatic annelids, but are the most abundant and diverse group of Phylum Annelida.
How do polychaetes survive in the wild?
The researchers suspect that these polychaetes survive by feeding on free-living bacteria on the gas hydrate's surface. They may also encourage the growth of their own bacterial food; their waving parapodia create water currents along the surface of the hydrate, delivering fresh oxygen for themselves and the bacteria.
