Growth of Tubifex tubifex Müller (Oligochaeta, Tubificidae) under Various Trophic Conditions

✍ Scribed by Dr. N. P. Finogenova; T. M. Lobasheva

• Book ID: 102869737
• Publisher: John Wiley and Sons
• Year: 1987
• Tongue: English
• Weight: 992 KB
• Volume: 72
• Category: Article
• ISSN: 1434-2944
• DOI: 10.1002/iroh.19870720608

✦ Synopsis

Growth of Tubifex tubijex on highly caloric activated sludge and poor in organic niiitter niituriil silt +.as experimentally studied. The relationship between oxygen consuinption rate, weight, and caloric value of T. tubifez body in culture on activated sludge was determined t o calculate the growth efficiency ( K 2 = PIP+ H). The growth rate has been determined, and models of T . tubijP1: growth are given under various trophic conditions conforniing t o results of the experiment. Hoin;itic growth, generative growth and life span of this species were compared on the basis of the experiments and literature. Acceleration of growth nnd prolongation of life under conditions of caloric food and delay of these processes in silt poor in organic mntter have been established and mensiired. T. tubifez was found to have advantages as compared to other tubificid species in response to increasing amounts of niitrient food in waters pollut,ed by organic matter tind, therefore, to produce abundant populations under these conditions.