These nematodes (eelworms, roundworms, trichinae) are among the most species- and individual-rich animal group in the world, with 20,000 different species. Most are very small, ranging from 0.1 to around one millimetre (the largest species, at over 8 m, lives in the sperm whale placenta). Unlike more highly developed arthropods (such as the earthworm), they have no vessels. Usually there are males and egg-laying females, but occasionally there is also a sexless virgin-breeding (pathenogesis). Four larval moults are undergone until sexual maturity. Feeding takes place through a hollow mouth spine that moves rhythmically while sucking. They live with numerous species in the soil and also feed on bacteria or fungi, which is a positive element in the ecological system of a vineyard soil.
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For my many years of work as an editor with a wine and culinary focus, I always like to inform myself about special questions at Wine lexicon. Spontaneous reading and following links often leads to exciting discoveries in the wide world of wine.
Dr. Christa Hanten
Fachjournalistin, Lektorin und Verkosterin, Wien