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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.
Eisenia fetida (Savigny, 1826) with head regeneration, in an anterior direction, possible at each intersegmental level back to and including 23/24, while tails were regenerated at any levels behind 20/21; thus two worms may grow from one. [43]
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.
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 ...
When the species has not been feeding, it is pale pink. The species is usually found in deep woodland litter and garden soils that are rich in organic matter in European countries. D. hortensis is sold primarily as a bait worm, but its popularity as a composting worm is increasing. [2] It was considered part of Eisenia until 2003. [3]
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.
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.