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- Title
The distribution and location of the symbiontLagenophrys asellion the freshwater isopodAsellus aquaticus.
- Authors
Roberts, G. N.; Chubb, J. C.
- Abstract
Summary:1. The distribution and location of the ciliated protozoan Lagenophrys aselli on the freshwater isopod Asellus aquaticus were studied in relation to water flow over the third pleopod surface. 2. At low densities L. aselli had a significant preference for the anterior centre of the pleopod; however, at the highest densities this preference was no longer significant. The distribution ranged from closer than random at low densities to further than random at the highest densities, and may have been a product of feeding and reproduction of L. aselli as well as the short intermoult period of the host. 3. An individual L. aselli has an effective area of both the lorica and the ciliated feeding disc. The ciliated feeding disc, when extended, may contribute to the presence of a small anterior–posterior gap being left between individuals.
- Subjects
LAGENOPHRYS; ASELLUS aquaticus; FRESHWATER ecology; POPULATION density
- Publication
Freshwater Biology, 1998, Vol 40, Issue 4, p671
- ISSN
0046-5070
- Publication type
Article
- DOI
10.1046/j.1365-2427.1998.00365.x