METEOR-Berichte Northeast Atlantic 2004 Cruise No. M61 April 19 to June 6, 2004, Lisbon (Portugal) – Ponta Delgada (Azores) D. Hebbeln, O. Pfannkuche, T. Reston, V. Ratmeyer Editorial Assistance: Kirsten Schäfer Leibniz-Institut für Meereswissenschaften, Kiel Leitstelle METEOR Institut für Meereskunde der Universität Hamburg 2006 The METEOR-Berichte are published at irregular intervals. They are working papers for people who are occupied with the respective expedition and are intended as reports for the funding institutions. The opinions expressed in the METEOR-Berichte are only those of the authors. The METEOR expeditions are funded by the Deutsche Forschungsgemeinschaft (DFG) and the Bundesministerium für Bildung und Forschung (BMBF). Editor: DFG-Senatskommission für Ozeanographie c/o MARUM – Zentrum für Marine Umweltwissenschaften Universität Bremen Leobener Strasse 28359 Bremen Authors: PD Dr. Dierk Hebbeln Telefon: +49-421-218-65650 MARUM Telefax: +49-421-218-65654 Zentrum für Marine Umweltwissenschaften E-Mail: [email protected] Universität Bremen http://www.marum.de Leobener Straße D-28359 Bremen / Germany Dr. Olaf Pfannkuche Telefon: +49-431-600-2113 GEOMAR Telefax: +49-431-600-2911 Dienstgebäude Ostufer E-Mail: [email protected] Wischhofstr. 1-3 http://www.geomar.de D-24148 Kiel / Germany Prof. Dr. Tim Reston Telefon: +49-431-600-2273 GEOMAR Telefax: +49-431-600-2922 Dienstgebäude Ostufer E-Mail: [email protected] Wischhofstr. 1-3 http://www.geomar.de D-24148 Kiel / Germany Dr. Volker Ratmeyer MARUM Telefax: +49-421-218-65604 Zentrum für Marine Umweltwissenschaften E-Mail: [email protected] Universität Bremen http://www.marum.de Leobener Straße D-28359 Bremen / Germany Citation: D. Hebbeln, O. Pfannkuche, T. Reston, V. Ratmeyer (2006) Northeast Atlantic 2004 – Cruise No. M61 – April 19 – June 6, 2004 – Lisbon (Portugal) – Ponta Delgada (Azores). METEOR- Berichte, M61, 168 pp, DFG-Senatskommission für Ozeanographie, DOI:10.2312/cr_m61 _________________________________________________________________________________ ISSN 2195-8475 METEOR-Berichte 06-2, Cruise 61, Lisbon – Ponta Delgada I Table of Contents page Table of Contents Part 1 (M61/1) .............................................................................................II Table of Contents Part 2 (M61/2) ...........................................................................................III Table of Contents Part 3 (M61/3) ............................................................................................IV Abstract ....................................................................................................................................V Zusammenfassung..................................................................................................................VI Research Objectives ..............................................................................................................VII Acknowledgements .................................................................................................................XI METEOR-Berichte 06-2, Part 1 (M61/1) ...................................................................1-1 to 1-70 METEOR-Berichte 06-2, Part 2 (M61/2) ...................................................................2-1 to 2-32 METEOR-Berichte 06-3, Part 3 (M61-/3) ..................................................................3-1 to 3-46 II METEOR-Berichte 06-2, Cruise 61, Lisbon – Ponta Delgada Table of Contents Part 1 (M61/1) page 1.1 Participants...................................................................................................... 1-1 1.2 Research Program .......................................................................................... 1-2 1.3 Narrative of the cruise...................................................................................... 1-3 1.4 Preliminary Results.......................................................................................... 1-6 1.4.1 High Resolution Physical Oceanography in Relation to Mound Topography ............................................................................ 1-6 1.4.2 The Role of Microbes in Slope Stabilisation on Deep- Sea Carbonate Mounds .................................................................. 1-11 1.4.3 OFOS-Surveys in the Belgica Mound Province and Western Rockall Bank: First Results .............................................................. 1-11 1.4.3.1 OFOS-Dives in the Belgica Mound Province (BMP) ............. 1-12 1.4.3.1.1 Castor Mound: OFOS Dive 1 (M61-1-203) ............. 1-12 1.4.3.1.2 Pollux Mound: OFOS Dive 2 (M61-1-204) .............. 1-15 1.4.3.1.3 Erik Mound: OFOS Dive 3 (M61-1-247) ................. 1-17 1.4.3.1.4 Joe´s Nose: OFOS Dive 4 (M61-1-248) ................. 1-20 1.4.3.2 OFOS-Dives at the Western Rockall Bank (WRB) ................. 1-22 1.4.3.2.1 Kiel Mount: OFOS Dive 5 (M61-1-287) ................... 1-23 1.4.3.2.2 Kiel Mount: OFOS Dive 6 (M61-1-288) ................... 1-24 1.4.3.2.3 Franken Mound: OFOS Dive 7 (M61-1-303) .......... 1-26 1.4.4 Composition and Distribution of Zooplankton Above Coral- Covered Carbonate Mounds at the Belgica Mound Province ........... 1-28 1.4.5 Deep-Sea Observation System (DOS)................................................ 1-29 1.4.6 Benthic Bioluminescence in the Vicinity of Deep-Water Coral Habitats .................................................................................. 1-32 1.4.7 Assessment of Scavenging Ichthyofauna Using a Baited Camera Lander ............................................................................... 1-33 1.4.8 Sediment Sampling and Foraminiferal Studies .................................. 1-36 1.4.9 Macrofauna Documentation: The Hidden Biodiversity of Cold-Water Coral Ecosystems ......................................................... 1-40 1.4.10 Megafauna Documented with the OFOS System: First Trends ......... 1-50 1.5 The Weather during R/V METEOR Voyage M61-1 ......................................... 1-63 1.6 Station List M61-1.......................................................................................... 1-64 1.7 References ................................................................................................... 1-70 METEOR-Berichte 06-2, Cruise 61, Lisbon – Ponta Delgada III Table of Contents Part 2 (M61/2) page 2.1 Participants ...................................................................................................................... 2-1 2.2 Research Program...........................................................................................................2-2 2.3 Narrative ......................................................................................................................... 2-4 2.4 Equipment Used ..............................................................................................................2-8 2.4.1 GEOMAR Ocean Bottom Hydrophone (OBH) ...................................................... 2-8 2.4.2 GEOMAR Tripod Ocean Bottom Seismometer (TOBS) ....................................... 2-9 2.4.3 GEOMAR “Roller” OBS ...................................................................................... 2-10 2.4.4 Marine Broadband Seismic Recorder (MBS)...................................................... 2-11 2.4.5 GEOMAR Mini-Streamer .................................................................................... 2-11 2.4.6 Seismic Source................................................................................................... 2-13 2.4.7 Seismic Data Processing and Archiving ............................................................. 2-14 2.4.8 Gravimeter .......................................................................................................... 2-18 2.5 Preliminary Results ....................................................................................................... 2-18 2.5.1 Profile 1............................................................................................................... 2-18 2.5.2 Profile 2............................................................................................................... 2-19 2.5.3 Profile 3............................................................................................................... 2-19 2.5.4 Profile 4............................................................................................................... 2-19 2.5.5 Profile 5............................................................................................................... 2-19 2.5.6 Profile 6............................................................................................................... 2-19 2.5.7 Picking of Phases ............................................................................................... 2-26 2.6 Station List M61/2 .......................................................................................................... 2-27 2.7 Acknowledgements ....................................................................................................... 2-32 2.8 References..................................................................................................................... 2-32 IV METEOR-Berichte 06-2, Cruise 61, Lisbon – Ponta Delgada Table of Contents Part 3 (M61/3) page 3.1 Participants.................................................................................................................. 3-1 3.2 Research Program......................................................................................................