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Eisenia fetida, known under various common names such as manure worm, [2] redworm, brandling worm, panfish worm, trout worm, tiger worm, red wiggler worm, etc., is a species of earthworm adapted to decaying organic material. These worms thrive in rotting vegetation, compost, and manure. They are epigean, rarely found in soil.
Earthworms are classified into three main ecophysiological categories: (1) leaf litter- or compost-dwelling worms that are nonburrowing, live at the soil-litter interface and eat decomposing organic matter e.g. Eisenia fetida; (2) topsoil- or subsoil-dwelling worms that feed (on soil), burrow and cast within the soil, creating horizontal ...
Eisenia is a genus of earthworms (annelids), named after Swedish-American scientist Gustav Eisen Wikimedia Commons has media related to Eisenia . Wikispecies has information related to Eisenia (annelid) .
Maximum weight of around 2.5 grams occurs within 8–10 weeks. The African nightcrawler has a uniform purple-grey sheen and the posterior segments are evenly tapered to a point. The segments of the brandling worm (Eisenia fetida) alternate reddish-orange and brown; the posterior segments do not taper, and the final segment is blunt.
Eisenia andrei is a close relative of the 'brandling' or 'tiger' worm Eisenia fetida. Like E. fetida , it is epigeic , i.e. it prefers to live in compost or leaf litter rather than mineral soils. It can be distinguished from E. fetida as it is darker in colour, and the characteristic stripes are less pronounced.
All worms make compost but some species are not suitable for this purpose. Vermicompost worms are generally epigean. Species most often used for composting include: Eisenia fetida (Europe), the red wiggler or tiger worm. Closely related to Eisenia andrei, which is also usable. Eisenia hortensis (Europe), European nightcrawlers, prefers high C:N ...
In Britain, it is primarily called the common earthworm or lob worm (though the name is also applied to a marine polychaete). In North America , the term nightcrawler (or vitalis ) is also used, and more specifically Canadian nightcrawler , referring to the fact that the large majority of these worms sold commercially (usually as fishing bait ...
The annelids (/ ˈ æ n ə l ɪ d z /), also known as the segmented worms, are animals that comprise the phylum Annelida (/ ə ˈ n ɛ l ɪ d ə /; from Latin anellus 'little ring'). [3] [a] The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches.