Aquatic Oligochaetes: Proceedings of the 7th International Symposium on Aquatic Oligochaetes held in Presque Isle, Maine, USA, 18–22 August 1997 (Developments in Hydrobiology Book 139)

The book contains papers on the biology of aquatic oligochaetes and some related groups. They cover a wide range of topics including phylogeny, taxonomy, geographic distribution, freshwater and marine ecology, population dynamics, histology and ultrastructure, physiology and behaviour. The wide scope is in line with recent trends in annelid research with less emphasis on pollution studies and faunistics and a renewed interest in experimental biology using new techniques. Front Matter....Pages i-xiv Past symposium attendees in the group photographs....Pages 1-7 Retrospect and Prospect: reflections on forty years of study of aquatic oligochaetes....Pages 9-19 Zoogeography of branchiobdellidans (Annelida) and temnocephalidans (Platyhelminthes) ectosymbiotic on freshwater crustaceans, and their reactions to one another in vitro ....Pages 21-31 Studies on the aquatic oligochaete fauna in Lake Biwa, central Japan. II. Records and taxonomic remarks of nine species....Pages 33-47 Monopylephorus camachoi nov. sp., a new rhyacodriline worm (Tubificidae: Clitellata) from the Coiba Island, on the east Pacific Coast of Panama....Pages 49-55 Records of Enchytraeidae (Clitellata) from the People’s Republic of China....Pages 57-66 Distribution of freshwater oligochaetes in the west and east coastal regions of the North Pacific Ocean....Pages 67-81 Enzymatic variability in sympatric species of Tubifex (Clitellata: Tubificidae)....Pages 83-86 Terrestrial polychaetes — models for the evolution of the Clitellata (Annelida)?....Pages 87-99 Clitellate diversity in Nationalstadsparken, an urban national park in Stockholm, Sweden....Pages 101-110 Finding enchytraeid oligochaetes (Clitellata) in hot climates: species occurrence on the shores of Bermuda....Pages 111-117 Spatial distribution of oligochaetes (Clitellata) in the tidal freshwater and brackish parts of the Schelde estuary (Belgium)....Pages 119-132 Distribution and dispersal capacity of the Ponto-Caspian tubificid oligochaete Potamothrix heuscheri (Bretscher, 1900) in Scandinavia....Pages 133-142 Oligochaeta and Aphanoneura in two Northern German hardwater lakes of different trophic state....Pages 143-148 Micro-distribution of oligochaetes in a soft-bottomed lowland stream (Elsbeek; The Netherlands)....Pages 149-163 Oligochaeta from the abyssal zone of Lake Baikal (Siberia, Russia)....Pages 165-174 Oligochaetes of Karavasta Lagoon (Albania). Preliminary results....Pages 175-182 A comparison among different population models for Limnodrilus hoffmeisteri Claparède (Oligochaeta, Tubificidae)....Pages 183-189 Assessment of secondary production of naididae (Oligochaeta): an example from a North German lake....Pages 191-198 Ultrastructure and functional significance of intestinojunctional spermathecae in enchytraeids (Oligochaeta, Annelida)....Pages 199-211 New sperm types in Naididae and Lumbriculidae (Annelida: Oligochaeta) and their possible phylogenetic implications....Pages 213-222 CLSM analysis of serotonin-immunoreactive neurons in the central nervous system of Nais variabilis , Slavina appendiculata and Stylaria lacustris (Oligochaeta: Naididae)....Pages 223-233 Tubificoides benedii (Tubificidae, Oligochaeta) — a pioneer in hypoxic and sulfidic environments. An overview of adaptive pathways....Pages 235-241 Decoupling of fission and regenerative capabilities in an asexual oligochaete....Pages 243-251 Autotomy reflex in a freshwater oligochaete, Lumbriculus variegatus (Clitellata: Lumbriculidae)....Pages 253-261 Helical swimming and body reversal behaviors in Lumbriculus variegatus (Annelida: Clitellata: Lumbriculidae)....Pages 263-269 Bioaccumulation test with Tubificid Sludgeworms in artificial media development of a standardisable method....Pages 271-280 Lumbriculids, branchiobdellidans and leeches: an overview of recent progress in phylogenetic research on clitellates....Pages 281-290