Aquatic Oligochaete Biology : Proceedings of the 4th International Symposium on Aquatic Oligochaete Biology

One: Taxonomy and Evolution.- 1. Comments on the classification of the Clitellata.- 2. Did the lumbriculids provide the ancestors of the branchiobdellidans, acanthobdellidans and leeches?.- 3. Phylogeny and origins of Enchytraeidae.- 4. Preliminary investigations of hybridization/reticulate evolution in Guaranidrilus (Enchytraeidae: Oligochaeta).- 5. Preliminary report on the Enchytraeidae (Oligochaeta) of West Florida.- 6. New species of Phallodrilus (Oligochaeta, Tubificidae) from caves of northern Spain and southwestern France.- Two: Anatomy, Ultrastructure and Physiology.- 7. Neurobehavioral specializations for respiratory movements and rapid escape from predators in posterior segments of the tubificid Branchiura sowerbyi.- 8. Different models of tubificid spermatozeugmata.- 9. Body wall organization in enchytraeids.- 10. Morphogenesis of body wall muscle fibers in Enchytraeus minutus.- 11. Histochemical analysis of oligochaete body wall.- 12. T-system in muscles of microdriles.- 13. Histophysiology of digestion and observations on the structure of the alimentary canal in the ectosymbiont Chaetogaster limnaei limnaei Baer, 1827 (Annelida: Oligochaeta).- Three: Life Histories and Population Dynamics.- 14. Population analysis in mass cultures of Tubifex tubifex.- 15. Density-dependent processes in cohorts of Tubifex tubifex, with special emphasis on the control of fecundity.- 16. Cohort cultures of Tubifex tubifex forms.- 17. Biological studies upon Enchytraeus variants Bouguenec & Giani 1987 in breeding cultures.- 18. Population dynamics of Tubificoides amplivasatus (Oligochaeta, Tubificidae) in the Oresund, Denmark.- 19. Intrinsic and extrinsic variables controlling the productivity of asexual populations of Nais spp, (Naididae, Oligochaeta).- Four: Commmunity Studies and Pollution Biology.- 20. Meiobenthic naidid and aelosomatid oligochaetes from the profundai zone, and relations of species to eutrophication.- 21. Observations of predator-prey interaction on dispersal of an oligochaete prey, Limnodrilus hoffmeisteri.- 22. Pollution and tidal benthic communities of the James River Estuary, Virginia.- 23. The role of oligochaetes in the management of waters.- 24. Colonization of a manmade gravel bar by Oligochaeta.- 25. Aquatic toxicity test for enchytraeids.- 26. Acute and chronic effects of an anionic surfactant on some freshwater tubificid species.