Bøger i Current Topics in Veterinary M serien

Comparative fore-gut morphology of Antarctic Amphipoda (Crustacea) adapted to different food sources.- Methods for the study of amphipod swimming: behavior, morphology, and fluid dynamics.- Is the oostegite structure of amphipods determined by their phylogeny or is it an adaptation to their environment?.- The distribution and frequency of the type II microtrichs in somen gammaridean amphipods.- What can vicariance biogeographic models tell us about the distributional history of subterranean amphipods?.- Actual state of gammaridean taxonomy and catalogue of species from Chile.- Gammaridean and caprellidean fauna from Brazil.- Amphipods from hydrotechnical structures in the north-western part of the Black Sea.- Structure of a suprabenthic shelf sub-community of gammaridean Amphipoda in the Bay of Fundy compared with similar sub-communities in the Gulf of St. Lawrence.- Amphipod crustaceans as an important component of zoobenthos of the shallow Antarctic sublittoral.- Patterns of abundance of exoedicerotid amphipods on sandy beaches near Sydney, Australia.- Local distributions of sandhoppers and landhoppers (Crustacea: Amphipoda: Talitridae) in the coastal zone of western Tasmania.- Ingestion of live filamentous diatoms by the Great Lakes amphipod, Diporeia sp.: a case study of the limited value of gut contents analysis.- A comparison of water loss and gill areas in two supralittoral amphipods from New Zealand.- Lack of oxygen and low pH as limiting factors for Gammarus in Hessian brooks and rivers.- Volumetric growth in gammaridean Amphipoda.- Respiration of Orchomene plebs (Hurley, 1965) and Waldeckia obesa (Chevreux, 1905) from Admiralty Bay (South Shetland Islands, Antarctic).- Eco-physiological characteristics of some common caprellid species in the Possjet Bay (Japan Sea).- A review of the reproductive bionomics of aquatic gammaridean amphipods: variation of life history traits with latitude, depth, aquatic salinity and superfamily.- Two types of maternal care for juveniles observed in Caprella monoceros Mayer, 1890 and Caprella decipiens Mayer, 1890 (Amphipoda: Caprellidae).- Tube-building behavior in Grandidierella, and two species of Cerapus.- Precopulatory mating behavior and sexual dimorphism in the amphipod Crustacea.- Redescription of Caprogrammarus gurjanovae Kudrjaschov & Vassilenko, 1966 (Crustacea: Amphipoda) from Hokkaido, Japan, with notes on the taxonomic status of Caprogammarus.- A new marine interstitial ingolfiellid (Crustacea, Amphipoda, Ingolfiellidea) from Tenerife and Hierro.

This book is based on the proceedings of a seminar on acute viral in­ fections of poultry, which was held in Brussels on 13-14 June 1985. The aim of the seminar, which was sponsored by the CEC, was to gather infor­ mation on those infections of immediate or increasing importance. It is hoped that dissemination of this information will make it easier to har­ monize diagnostic and control measures throughout the member states of the EEC. Several points emerge from recent outbreaks of highly pathogenic avian influenza. In view of the apparent change in pathogenicity of the virus involved in the outbreak in the USA, infections of domestic poultry, particularly with H5 and H7 sub-types, should be regarded as a potential threat, even if the viruses involved are of low pathogenicity. The reasons for the amount of lateral spread which occurred in the USA outbreak are still not clear, and it can not be assumed that future outbreaks of highly pathogenic avian influenza will tend to be self-limiting, as in the past. The importance of denying access of wild birds, particularly water fowl, to domestic poultry needs to be re-emphasised. Lastly, there appears to be increasing support for a combination of slaughter and ring vaccination to control future outbreaks of spreading avian influenza.