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Feeding biology of Diplogasteritus nudicapitatus and Rhabditis curvicaudata (Nematoda) related to food concentration and temperature, in sewage treatment plants

Citation

Woombs, M and Laybourn-Parry, J, Feeding biology of Diplogasteritus nudicapitatus and Rhabditis curvicaudata (Nematoda) related to food concentration and temperature, in sewage treatment plants, Oecologia, 64, (2) pp. 163-167. ISSN 0029-8549 (1984) [Refereed Article]

DOI: doi:10.1007/BF00376865

Abstract

The feeding biology of two bacterivorous nematodes found in percolating filter-bed sewage treatment plants were investigated in relation to food supply and temperature at all developmental stages. Temperature profoundly affected feeding activity and ingestion rates. As temperature increased ingestion rates increased. The larger species, Rhabditis curvicaudata possessed lower rates of pharyngeal pulsation than the small species Diplogasteritus nudicapitatus. R. curvicaudata reduced feeding activity as bacterial density fell from 8x109 cells ml-1 to 5x107 cells ml-1, below which it ceased feeding. D. nudicapitatus pumped continuously at a more or less constant rate irrespective of food density. The evolutionary and ecological aspects of these two patterns of feeding behaviour are discussed. © 1984 Springer-Verlag.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and Estuarine Ecology (incl. Marine Ichthyology)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in Philosophy and Religious Studies
Author:Laybourn-Parry, J (Professor Johanna Laybourn-Parry)
ID Code:49406
Year Published:1984
Web of Science® Times Cited:20
Deposited By:Research Division
Deposited On:2007-12-08
Last Modified:2011-08-30
Downloads:0

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