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Potential age of aquatic Oligochaeta
Timm, T. (1984). Potential age of aquatic Oligochaeta, in: Bonomi, G. et al. (Ed.) Aquatic Oligochaeta: Proceedings of the 2nd International Symposium on Aquatic Oligochaete Biology, held in Pallanza, Italy, September 21-24, 1982. Developments in Hydrobiology, 24: pp. 101-104
In: Bonomi, G.; Erséus, C. (Ed.) (1984). Aquatic Oligochaeta: Proceedings of the 2nd International Symposium on Aquatic Oligochaete Biology, held in Pallanza, Italy, September 21-24, 1982. Reprinted from Hydrobiologia, vol. 115. Developments in Hydrobiology, 24. W. Junk Publishers: Dordrecht. ISBN 90-6193-775-2. 240 pp., more
In: Dumont, H.J. (Ed.) Developments in Hydrobiology. Kluwer Academic/Springer: The Hague; London; Boston; Dordrecht. ISSN 0167-8418, more

Also published as
  • Timm, T. (1984). Potential age of aquatic Oligochaeta. Hydrobiologia 115: 101-104, more

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    Marine

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  • Timm, T.

Abstract
    The maximum lifetime of species with exclusively sexual reproduction covers 5-15 years or even more in aquaria, although most specimens die consecutively earlier. The zooids of paratomic species live some weeks or months, their clones usually less than a year, rarely for some years. In the species with facultative architomy (fragmentation) the clonal age also exceeds that of the individual, both lasting for several years. The actual lifetime of worms in nature may be shorter than in cultures.

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