Biology of meso- and bathypelagic chaetognaths in the Southern Ocean [Elektronische Ressource] / Svenja Kruse

Alfred-Wegener-Institut für Polar- und Meeresforschung Bremerhaven Universität Bremen BIOLOGY OF MESO- AND BATHYPELAGIC CHAETOGNATHS IN THE SOUTHERN OCEAN DISSERTATION zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften - Dr. rer. nat. - am Fachbereich Biologie/Chemie der Universität Bremen SVENJA KRUSE Oktober 2009 1. Gutachter: Prof. Dr. U. Bathmann 2. Gutachter: Prof. Dr. W. Hagen Fragen bleiben jung, Antworten altern rasch. (Kurt Marti) TABLE OF CONTENTS Summary 2 Zusamenfasung 41. General introduction 8 1.1 The Southern Ocean 8 1.2 Geographical and vertical distribution of chaetognaths 12 1.3 The biology of chaetognaths 14 2. Aims and outline of the thesis 20 3. List of publications 24 Publicaton I: 26Meso- and bathypelagic distribution and abundance of chaetognaths in the Atlantic sector of the Southern Ocean Publicaton I: 60Population structure and reproduction of Eukrohnia bathypelagica and Eukrohnia bathyantarctica in the Lazarev Sea, Southern Ocean Publication III: 82 Feeding ecology and energetics of the Antarctic chaetognaths Eukrohnia hamata, E. bathypelagica and E.