Aquatic Oligochaete Biology VI : Proceedings of the VI International Symposium on Aquatic Oligochaetes held in Strömstat, Sweden, September 5-10, 1994

Recent studies on diverse aspects of the biology of clitellate works (oligochaetes and leeches) are found in the Proceedings of the most recent International Symposium on Aquatic Oligochaete Biology - from development to population dynamics and from ultrastructure to evolution. The majority of the contributions, which have a very broad geographic scope, are investigations of the biology and ecology of oligochaete works in natural and polluted waters. Front Matter....Pages i-xii Tenagodrilus musculus , a new genus and species of Lumbriculidae (Clitellata) from a temporary pond in Alabama, USA....Pages 1-9 Kathrynella , a new oligochaete genus from Guyana....Pages 11-15 Oligochaetes (Naididae, Tubificidae, Opistocystidae, Enchytraeidae, Sparganophilidae and Alluroididae) of Guyana....Pages 17-29 Species separation and identification in the Enchytraeidae (Oligochaeta, Annelida): combining morphology with general protein data....Pages 31-36 Aquatic Oligochaeta in Italy, with special reference to Naididae....Pages 37-49 The distribution of Oligochaeta on an exposed rocky shore in southeast Ireland....Pages 51-62 Oligochaeta and Aphanoneura in ancient lakes: a review....Pages 63-72 Distribution patterns of aquatic oligochaetes inhabiting watercourses in the Northwestern Iberian Peninsula....Pages 73-83 The effect of water movement on the distribution of Oligochaeta in lakes....Pages 85-88 Oligochaeta of Lake Taimyr: a preliminary survey....Pages 89-95 Influence of grain size on the distribution of tubificid oligochaete species....Pages 97-101 Oligochaetes in the southern basin of the Venetian Lagoon: community composition, species abundance and biomass....Pages 103-114 Seasonal dynamics of aufwuchs Naididae (Oligochaeta) on Phragmites australis in a eutrophic lake....Pages 115-123 Age, stage and size structure as population state variables for Tubifex tubifex (Oligochaeta, Tubificidae)....Pages 125-132 Energy budget of Oligochaeta and its relationship with the primary production of Lake Sevan, Armenia....Pages 133-140 Production and population dynamics of Tubifex tubifex in the profundal zone of a freshwater reservoir in N. Italy....Pages 141-146 Superficial and hyporheic oligochaete communities as indicators of pollution and water exchange in the River Moselle, France....Pages 147-155 Reversal of eutrophication in four Swiss lakes: evidence from oligochaete communities....Pages 157-161 A comparison of two tubificid oligochaete species as candidates for sublethal bioassay tests relevant to subtropical and tropical regions....Pages 163-168 Oligochaetes and eutrophication; an experiment over four years in outdoor mesocosms....Pages 169-183 Oligochaete communities at the mouth of the Neva and their relationship to anthropogenic impact....Pages 185-191 Upstream-downstream movement of macrofauna (with special reference to oligochaetes) in the River Raba below a reservoir....Pages 193-198 A comparison of reproduction, growth and acute toxicity in two populations of Tubifex tubifex (Müller, 1774) from the North American Great Lakes and Northern Spain....Pages 199-206 Morphogenesis of helical fibers in haplotaxids....Pages 207-217 Histochemical characterization of secretions in the reproductive systems of two species of branchiobdellidans (Annelida: Clitellata): a new character for the phylogenetic matrix?....Pages 219-227 An ultrastructural investigation of Hrabeiella Pižl & Chalupský, 1984 (Annelida). I. Chaetae and body wall organization....Pages 229-239 Peripheral vascular apparatus in some aquatic oligochaetes with special references to haplotaxids....Pages 241-249 Osmoregulation in two aquatic oligochaetes from habitats with different salinity and comparison to other annelids....Pages 251-261 Cinematographic documentation of enchytraeid morphology and reproductive biology....Pages 263-267 The first two cleavages in Tubifex involve distinct mechanisms to generate asymmetry in mitotic apparatus....Pages 269-276 Leeches (Oligochaeta?: Euhirudinea), their phylogeny and the evolution of life-history strategies....Pages 277-285 Back Matter....Pages 287-295 This collection of papers covers recent studies on diverse aspects of the biology of clitellate works (oligochaetes and leeches)- from development to population dynamics and from ultrastructure to evolution. The majority of the papers are investigations of the biology and ecology of oligochaetes.