By Ralph O. Brinkhurst (auth.), Giuliano Bonomi, Christer Erséus (eds.)
At the 1st overseas Symposium on Aquatic Oligochaete Biology in Sidney, B. C. , the advice was once made to carry the second one in Pallanza, on Lake Maggiore, on the C. N. R. -Istituto Italiano di Idrobiologia. whilst it used to be made up our minds that there might be a symposium each 3rd 12 months. The association of the symposium was once made significantly more straightforward by way of the Senior Editor's having been in own touch with numerous Russian colleagues (courtesy of a sort invitation from the U. S. S. R. Academy of Sciences), the 'Hamburg staff' and the Junior Editor. Correspondence with a number of scholars of Oligochaeta additionally supplied many helpful feedback. the second one overseas Symposium on Aquatic Oligochaete Biology used to be hence held in Pallanza in past due September 1982 and was once attended through fifty three scientists from sixteen nations in Europe, North the United States, Asia and Australia. No evaluate papers have been officially invited as this had already been performed on the first symposium: all of the papers have been for that reason distributed an analogous time for oral presentation. those complaints comprise all papers Hrabe and Slepukhina, that have been given in absentia, because it offered on the symposium, together with these by way of was once very unlikely for the authors to hitch the crowd. the most issues have been taxonomy and evolution of Oligo chaeta, life-cyle and inhabitants experiences, the function of Oligo chaeta in assessing water pollutants, physiolog ical stories, neighborhood and distribution reviews. specified taxonomic workshops came about within the evenings.
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Additional resources for Aquatic Oligochaeta: Proceedings of the Second International Symposium on Aquatic Obligochaete Biology, held in Pallanza, Italy, September 21–24, 1982
Can. J. Zoo!. 59: 936-965. , M. Ferraguti& T. P. Fleming, 1980. Cell junctions between spermatozoa flagella within the spermatozeugmata of Tubifex tubifex (Annelida: Oligochaeta). J. Ultrastruct. Res. 73: 299-309. Braidotti, P. & M. Ferraguti, 1982. Two sperm types in the spermatozeugmata ofTubifex tubifex(Annelida, Oligochaetal. J. Morph. 171: 123-136. Brinkhurst, R. , 1982. Evolution in the Annelida. Can. J. Zoo!. 60: 1043-1059. Brinkhurst, R. , 1984. The position of the Haplotaxidae in the evolution of oligochaete annelids.
E. bifid setae with one or more, generally very inconspicuous, intermediate teeth. The adaptive significance of the dorsal hairs and pectinates is still not understood (see Brinkhurst, 1984, for a more detailed discussion). It can only be concluded from their scattered occurrence throughout the Tubificidae that they have existed for a long time in the family, and it is clear that they have been secondarily lost on several occasions. The plesiomorphic state of the hair setae in the Tubificidae is also supported by the fact that hairs are present also in the closely related families N aididae, Opistocystidae and Phreodrilidae.
195: 311-330. Giani, N. & E. Martinez-Ansemil, 1981. Observaciones acerca de algunos Tubificidae (Oligochaeta) de la Peninsula Iberica, con la desc~ipcion de Phallodrilus riparius n. sp. AnnIs Limnol. 17: 201-209. , 1981. The gutless marine oligochaete Phallodrilus leukodermatus. Structural studies on an aberrant tubificid associated with bacteria. Mar. Ecol. Prog. Ser. 5: 353-357. , H. Felbeck, R. Dawson & G. Liebezeit, 1984.