Abstract
Laboratory cohort cultures of the tubificid Tubifex tubifex with different initial densities were carried out at 20 °C with the condition of unlimited food. The main results were: 1) Intracocoon mortality was 37% of the laid eggs (observation of 689 eggs); 2) The principal bionomic parameters (generation time, r, R0) appeared to be density dependent; 3) Recruitment was regulated through the percentage of worms that actually attained the ovigerous stage, specific fecundity, and the duration of the egg laying stage, whichappeared to be inversely correlated with density.
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© 1989 Kluwer Academic Publishers
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Bonacina, C., Bonomi, G., Monti, C. (1989). Density-dependent processes in cohorts of Tubifex tubifex, with special emphasis on the control of fecundity. In: Kaster, J.L. (eds) Aquatic Oligochaete Biology. Developments in Hydrobiology, vol 51. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2393-5_15
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DOI: https://doi.org/10.1007/978-94-009-2393-5_15
Publisher Name: Springer, Dordrecht
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