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Documents Presented at the Symposium on Stock Enhancement Documents presented EIFAC TECHNICAL at the symposium PAPER on stock enhancement DOCUMENT in the management TECHNIQUE of freshwater fisheries DE LA CECPI 42/Suppl./2 Documents présentés au symposium sur l'amélioration des stocks dans le cadre de l'aménagement des pêcheries d'eau douce Volume 2: Introductions and Transplantations Introductions et transplantations Held in Budapest, 31 May – 2 June 1982 in conjunction with the Twelfth Session of EIFAC Tenu à Budapest du 31 mai au 2 juin 1982 à l'occasion de la douzième session de la CECPI FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Rome, 1984 ORGANISATION DES NATIONS UNIES POUR L'ALIMENTATION ET L'AGRICULTURE Rome, 1984 The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Les appellations employées dans cette publication et la présentation des données qui y figurent n'impliquent de la part de l'Organisation des Nations Unies pour l'alimentation et l'agriculture aucune prise de position quant au statut juridique des pays, territoires, villes ou zones, ou de leurs autorités, ni quant au tracé de leurs frontières ou limites. M-43 ISBN 92-5-002102-X All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior permission of the copyright owner. Applications for such permission, with a statement of the purpose and extent of the reproduction, should be addressed to the Director, Publications Division, Food and Agriculture Organization of the United Nations, Via delle Terme di Caracalla, 00100 Rome, Italy. Tous droits réservés. Aucune partie de cette publication ne peut être reproduite, mise en mémoire dans un système de recherche bibliographique ni transmise sous quelque forme ou par quelque procédé que ce soit: électronique, mécanique, par photocopie ou autre, sans autorisation préalable. Adresser une demande motivée au Directeur de la Division des publications. Organisation des Nations Unies pour l'alimentation et l'agriculture, Via delle Terme di Caracalla, 00100 Rome (Italie), en indiquant les passages ou illustrations en cause. PREPARATION OF THIS DOCUMENT This collection of papers represents the Proceedings of the Symposium on Stock Enhancement in the Management of Freshwater Fisheries, held in conjunction with the Twelfth Session of EIFAC (Budapest, Hungary, 31 May – 2 June 1982). The Proceedings are in two volumes, which are supplementary to the Report of the Symposium issued in 1982 as EIFAC Technical Paper No. 42. PREPARATION DE CE DOCUMENT Cette ensemble de documents represents les actes du Symposium sur l'amélioration des stocks dans le cadre de l'aménagement des pêcheries d'eau douce, tenu à Budapest (Hongrie) du 31 mai au 2 juin 1982 à l'occasion de la douzième session de la CECPI. Les actes sont presentés en deux volumes complémentaires au Rapport du Symposium émis par la CECPI en 1982 sous forme de document technique № 42. Distribution For biblïographic purposes this document should be cited as follows/La référence bibliographique Authors/Auteurs de ce document doit être donnée ainsi: Participants in the Symposium/ Participants au Symposium European Inland Fisheries Advisory Commission EIFAC Mailing List/Liste de distribution 1984 Commission européenne consul tative de la CECPI pour les pêches dans les eaux FAO Fisheries Departement/Départment intérieures, 1984 Documents des pêches de la FAO presented at the Symposium on stock FAO Regional Fishery enhancement in the management of Officers/Fonctionnaires régionaux des freshwater fisheries. Documents pêches de la FAO presentés au Symposium sur l'amélioration des stocks dans le cadre de l'aménagement des pêcheries d'eau douce. Vol.2. Introductions and transplantations Introductions et transplantations. Held in Budapest, Hungary, 31 May – 2 June 1982 in conjunction with the Twelfth session of EIFAC. Tenu à Budapest, Hongrie du 31 mai au 2 juin 1982 à l'occasion de la douzième session de la CECPI. EIFAC Tech.Pap./Doc.Tech.CECPI, (42)Suppl.Vol.2:283–554 ABSTRACT Volume Two of these Proceedings groups together the 26 papers presented at the Symposium on Stock Enhancement in the Management of Freshwater Fisheries, which dealt with the advantages and disadvantages of introduction of new species into European waters. RESUME Le volume deux de ces actes regroupe 26 documents presentés au Symposium sur l'amélioration des stocks dans le cadre de l'aménagement des pêcheries d'eau douce, qui traitait des avantages et desavantages de l'introductions et transplantations avec des espèces autochtones des eaux européennes. CONTENTS TABLE DES MATIERES Page INTRODUCTION THE IMPACT OF A TRANSPLANTED FORAGE FISH, THE ALEWIFE (Alosa pseudoharengus) ON A RESERVOIR FISHERY IN SOUTHEASTERN UNITED STATES C.C. Kohler 283 REVIEW OF EXPERIMENTS WITH INTRODUCTION AND ACCLIMATIZATION OF THE HUCHEN, Hucho hucho (LINNAEUS, 1758) (SALMONIDAE) J. Holcik 290 INTRODUCTION OF CARP (Cyprinus carpio (L.)) IN FINLAND P. Ahlfors, P. Kummu and K. Westman 299 HEAVY SILVER CARP (Hypophthalmichthys molitrix (Val.)) STOCKING IN LAKES AND ITS INFLUENCE ON INDIGENOUS FISH STOCKS D. Barthelmes 313 INTRODUCTION OF GRASS CARP (Ctenopharyngodon idella (Val.) INTO DENMARK P.M. Markmann 325 THE INTRODUCTION, SPREAD AND INFLUENCE OF THE BARBEL (Barbus barbus) IN THE RIVER SEVERN, GREAT BRITAIN A.S. Churchward, P. Hickley and E. North 335 A CENTURY OF PIKEPERCH IN DENMARK J. Dahl 344 THE IMPACT OF ZANDER (Stizostedion lucioperca (L.)) IN THE UNITED KINGDOM AND THE FUTURE MANAGEMENT OF AFFECTED FISHERIES IN THE ANGLIAN REGION R.S.J. Linfield 353 INTRODUCTION AND THE PRESENT STATUS OF BROOK TROUT (Salvelinus fontinalis Mitchill) IN NORWAY M. Grande 363 RESULTS OF LAKE TROUT STOCKINGS IN FINLAND 1957–81 A. Mutenia, O. Simola and O. Tuunainen 381 RESULT OF THE INTRODUCTION OF LAKE TROUT (LAKE CHARR, Salvelinus namaycush) INTO SWEDISH LAKES A.P. Gonczi and N.-A. Nilsson 392 INTRODUCTION OF THE NORTH AMERICAN CRAYFISH (Pacifastacus Ieniusculus (DANA)) INTO SWEDEN M. Furst 400 PRESENCE EN FRANCE D'ESPECES EXOTIQUES D'ECREVISSES PROVENANT D'INTRODUCTIONS RECENTES P.J. Laurent, D. Vigneux et E. Vigneux 405 THE RESTORATION OF THE CRAYFISH (Astacus astacus) IN RIVER SIIKAJOKI, FINLAND M. Pursiainen and K. Westman 412 INTRODUCTION OF THE AMERICAN CRAYFISH (Pacifastacus leniusculus) IN FINLAND; IMPACT ON THE NATIVE CRAYFISH (Astacus astacus) K. Westman and M. Pursiainen 422 INTRODUCTION ET ACCLIMATATION DE POISSONS D'EAU DOUCE EN FRANCE; HISTORIQUE ET BILAN J. Allardi 427 A REVIEW OF FISH AND CRAYFISH INTRODUCTIONS MADE IN FINLAND K. Westman and P. Tuunainen 436 THE EFFECTS OF FRESHWATER FISH INTRODUCTIONS INTO IRELAND P. Fitzmaurice 449 INTRODUCTION DE NOUVELLES ESPECES DE POISSONS DANS LES PECHERIES D'EAU DOUCE DE LA ROUMANIE N. Bacalbasa-Dobrovici 458 THE EXOTIC ICHTHYOFAUNA OF THE CONTIGUOUS UNITED STATES WITH PRELIMINARY OBSERVATIONS ON INTERANATIONAL TRANSPLANTS W.R. Courtenay, Jr. and J.N. Taylor 466 SOME CONSIDERATIONS ON THE ROLE OF INTRODUCED SPECIES OF FISH IN THE MANAGEMENT OF INLAND FISHERIES J. Holcik 488 THE NICHE CONCEPT AND THE INTRODUCTION OF EXOTICS N.-A. Nilsson 496 REDUCING THE RISK OF FISH INTRODUCTIONS: A RATIONAL APPROACH TO THE MANAGEMENT OF INTEGRATED COLDWATER COMMUNITIES R.A. Ryder and S.R. Kerr 510 PARASITE RANGE EXTENSION BY INTRODUCTION OF FISH TO HUNGARY K. Molnar 534 IMPLEMENTATION OF A REVIEW AND DECISION MODEL FOR EVALUATING PROPOSED INTRODUCTIONS OF AQUATIC ORGANISMS IN EUROPE AND NORTH AMERICA C.C. Kohler and J.G. Stanley 541 EXOTIC FISH SPECIES ACCLIMATIZED IN HUNGARIAN NATURAL WATERS J. Toth and P. Biro 550 INTRODUCTION Following the recommendations of the International Consultation on Fishery Resources Allocation (Vichy, France, 1980) and its own discussions during its Eleventh Session (Stavanger, Norway, May 1980), EIFAC felt that subsequent sessions should examine closely the current situation for managing stocks of fish in European inland waters. Because the whole topic of management is too large for coverage during any one symposium, it was recommended by the Commission that the subject be covered in two symposia - one on biotic aspects of management to be held in conjunction with the Twelfth Session of EIFAC and one on abiotic aspects to be held with the Thirteenth Session of EIFAC. There has been a long-standing concern with the effects of introductions of exotic species into European rivers and lakes. Furthermore, whilst stocking with native or introduced species is common management practice, there is very little evidence for or against its biological or economic effectiveness. Therefore, the first Symposium on management addressed the twin problems of introductions and stockings in an effort to define guidelines for both practices in European waters. The Symposium considered these two specific aspects of stock manipulation in seven sessions as follows: Session 1 Stocking with non-salmonids Session 2 Stocking with brown trout Session 3 Stocking with salmon Session 4 Introductions and transplantations - case histories and experience with some species Session 5 Introductions - country reviews and Lake Kinneret case Session 6 Introductions - ecological and practical aspects Session
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