Aquatic Oligochaeta : Proceedings of the Second International Symposium on Aquatic Obligochaete Biology, Held in Pallanza, Italy, September 21–24, 1982

At the First International Symposium on Aquatic Oligochaete Biology in Sidney, B. C. , the suggestion was made to hold the second in Pallanza, on Lake Maggiore, at the C. N. R. -Istituto Italiano di Idrobiologia. At the same time it was decided that there should be a symposium every third year. The organization of the symposium was made considerably easier by the Senior Editor's having been in personal contact with several Russian colleagues (courtesy of a kind invitation from the U. S. S. R. Academy of Sciences), the 'Hamburg Group' and the Junior Editor. Correspondence with various students of Oligochaeta also furnished many useful suggestions. The Second International Symposium on Aquatic Oligochaete Biology was therefore held in Pallanza in late September 1982 and was attended by 53 scientists from 16 countries in Europe, North America, Asia and Australia. No review papers were formally invited as this had already been done at the first symposium: all the papers were accordingly allotted the same time for oral presentation. These proceedings contain all papers Hrabe and Slepukhina, which were given in absentia, as it presented at the symposium, including those by was impossible for the authors to join the group. The main topics were taxonomy and evolution of Oligo chaeta, life-cyle and population studies, the role of Oligo chaeta in assessing water pollution, physiolog­ ical studies, community and distribution studies. Special taxonomic workshops took place in the evenings. Front Matter....Pages I-XIV Howard R. Baker (1955–1983) in memoriam....Pages 1-2 A phenetic and cladistic study of spermatozoal ultrastructure in the Oligochaeta (Annelida)....Pages 3-13 Two atavistic characters of some Lumbriculidae and their importance for the classification of Oligochaeta....Pages 15-17 Phylogenetic and taxonomic problems in freshwater Oligochaeta with special emphasis on chitinous structures in Tubificinae....Pages 19-23 The position of the Haplotaxidae in the evolution of oligochaete annelids....Pages 25-36 Aspects of the phylogeny of the marine Tubificidae....Pages 37-44 Specific criteria in Grania (Oligochaeta, Enchytraeidae)....Pages 45-50 Capilloventer atlanticus gen. et sp.n., a member of a new family of marine Oligochaeta from Brazil....Pages 51-54 A method of identifying immature specimens of marine Enchytraeidae (Oligochaeta) by vital staining of epidermal glands....Pages 55-58 Cytological aspects of oligochaete spermiogenesis....Pages 59-64 Life-cycle and karyology of Branchiura sowerbyi Beddard (Oligochaeta, Tubificidae)....Pages 65-69 Diet and histophysiology of the alimentary canal of Lumbricillus lineatus (Oligochaeta, Enchytraeidae)....Pages 71-81 The gutless oligochaete Phallodrilus leukodermatus Giere, a tubificid of structural, ecological and physiological relevance....Pages 83-89 Asexual propagation and reproductive strategies in aquatic Oligochaeta....Pages 91-95 Life cycles and reproductive adaptations of marine Oligochaeta from European boreal shores....Pages 96-96 Parthenogenesis in Tubificidae....Pages 97-99 Potential age of aquatic Oligochaeta....Pages 101-104 Growth of Stylaria lacustris (L.) (Oligochaeta, Naididae)....Pages 105-107 The biology of Psammoryctides barbatus (Grube) in English chalk streams....Pages 109-112 Cohort cultures of Psammoryctides barbatus (Grube) and Spirosperma ferox Eisen: a tool for a better understanding of demographic strategies in Tubificidae....Pages 113-119 Oxygen demand and long term changes of profundal zoobenthos....Pages 121-126 Oligochaete communities as biological descriptors of pollution in the fine sediments of rivers....Pages 127-129 Eutrophication of Lakes Léman and Neuchâtel (Switzerland) indicated by oligochaete communities....Pages 131-138 Lethal and sublethal tolerances of aquatic oligochaetes with reference to their use as a biotic index of pollution....Pages 139-144 Oligochaeta of the middle Po River (Italy): principal component analysis of the benthic data....Pages 145-152 Short term dynamics of the dominant annelids in a polyhaline temperate estuary....Pages 153-158 The occurrence of species of semi-aquatic Enchytraeidae (Oligochaeta) in Ireland....Pages 159-170 The oligochaetes (Annelida, Oligochaeta) in a lake and a canal in the agricultural landscape of Poland....Pages 171-174 Oligochaeta of the epigean and underground fauna of the alluvial plain of the French upper Rhône (biotypological trial)....Pages 175-182 Comparison of different methods of water quality evaluation by means of oligochaetes....Pages 183-186 On aquatic Oligochaeta Lumbricomorpha in Europe....Pages 187-190 Diversity and zoogeography of marine Tubificidae (Annelida, Oligochaeta) with notes on variation in widespread species....Pages 191-196 Distribution and habitat characteristics of Naididae and Tubificidae in the inland waters of Israel and the Sinai Peninsula....Pages 197-205 A taxonomic and faunistic survey of the marine Tubificidae and Enchytraeidae (Oligochaeta) of Italy. Introduction and preliminary results....Pages 207-210 Ecology and importance of Oligochaeta in the biocenosis of zoobenthos in lakes of the National Park of the Lithuanian SSR....Pages 211-214 The distribution of aquatic oligochaetes in the fenland area of N.W. Overijssel (The Netherlands)....Pages 215-222 Oligochaeta from profundal zones of Spanish reservoirs....Pages 223-230 Back Matter....Pages 231-240 At the First International Symposium on Aquatic Oligochaete Biology in Sidney, B.C., the suggestion was made to hold the second in Pallanza, on Lake Maggiore, at the C.N.R.-Istituto Italiano di Idrobiologia. At the same time it was decided that there should be a symposium every third year. The organization of the symposium was made considerably easier by the Senior Editor's having been in personal contact with several Russian colleagues (courtesy of a kind invitation from the U.S.S.R. Academy of Sciences), the 'Hamburg Group' and the Junior Editor. Correspondence with various students of Oligochaeta also furnished many useful suggestions. The Second International Symposium on Aquatic Oligochaete Biology was therefore held in Pallanza in late September 1982 and was attended by 53 scientists from 16 countries in Europe, North America, Asia and Australia. No review papers were formally invited as this had already been done at the first symposium: all the papers were accordingly allotted the same time for oral presentation. These proceedings contain all papers Hrabe and Slepukhina, which were given in absentia, as it presented at the symposium, including those by was impossible for the authors to join the group. The main topics were taxonomy and evolution of Oligo chaeta, life-cyle and population studies, the role of Oligo chaeta in assessing water pollution, physiologƯ ical studies, community and distribution studies. Special taxonomic workshops took place in the evenings Proceedings of the Second International Symposium on Aquatic Oligochaete Biology, held in Pallanza, Italy, September 21-24, 1982