RV Sonne SO-250 Cruise Report / Fahrtbericht Tomakomai - Yokohama (Japan) 16.08.-26.09.2016 SO-250 KuramBio II (Kuril Kamchatka Biodiversity Studies) Angelika Brandt University of Hamburg, Centre of Natural History (CeNak), Zoological Museum Hamburg and shipboard scientific party 1 TOC / Inhaltsverzeichnis 1. Cruise summary / Zusammenfassung ................................................................................................... 6 German / Deutsch ......................................................................................................................... 6 English / Englisch ........................................................................................................................... 6 2. Participants / Teilnehmer ...................................................................................................................... 8 Principal investigators / Leitende Wissenschaftler ....................................................................... 8 Scientific party / wissenschaftliche Fahrtteilnehmer .................................................................... 8 Crew / Mannschaft ...................................................................................................................... 12 3. Narrative of the cruise / Ablauf der Forschungsfahrt ......................................................................... 13 4. Aims of the Cruise / Zielsetzung der Forschungsfahrt ........................................................................ 15 5. Agenda of the cruise / Programm der Forschungsfahrt ..................................................................... 17 5.1. Work Programme ........................................................................................................................ 17 6. Settings of the working area / Beschreibung des Arbeitsgebiets ....................................................... 19 7. Reports from all participants ............................................................................................................... 20 7.1. Multibeam Mapping .................................................................................................................... 20 7.1.1. Acquisition and Processing .................................................................................................. 20 7.1.2. Coverage and description .................................................................................................... 21 7.2. Sampling data management ....................................................................................................... 22 7.2.1. Sample management .......................................................................................................... 22 7.3. Gear deployments ....................................................................................................................... 22 7.3.1. The SBE 32 Carousel Water Sampler (CTD) ......................................................................... 22 7.3.2. The Multi(Plankton)net (MN) .............................................................................................. 23 7.3.3. The Box‐Corer (BC) .............................................................................................................. 25 7.3.4. The Multi‐Corer (MUC) ........................................................................................................ 26 7.3.5. Agassiz‐Trawl (AGT) ............................................................................................................. 28 7.3.6. Epibenthic‐slege (EBS) ......................................................................................................... 29 1.1.1.1. EBS and AGT trawl procedure for stations deeper than 9,000 m ............................... 31 1.1.1.2. EBS and AGT trawl distance calculation ...................................................................... 32 7.4. Results of the CTD (Conductivity, Temperature, Density) rosette .............................................. 32 7.4.1. Objectives: ........................................................................................................................... 32 7.4.2. Work at sea: ........................................................................................................................ 33 7.4.3. Preliminary results: ............................................................................................................. 34 7.5. Plankton in the Kuril‐Kamchatka area by use of MultiNet ‐ Multiple Plankton Sampler ............ 37 7.5.1. Objectives ............................................................................................................................ 37 7.5.2. Work at sea: ........................................................................................................................ 37 7.5.3. Preliminary results .............................................................................................................. 37 7.6. Pteropoda of the Kurile‐Kamchatka Trench area ........................................................................ 39 7.6.1. Objectives ............................................................................................................................ 39 7.6.2. Work at Sea ......................................................................................................................... 39 7.6.3. Preliminary results and outlook .......................................................................................... 40 7.7. Planktonic Copepoda in the Kuril‐Kamchatka area ..................................................................... 41 7.7.1. Objectives ............................................................................................................................ 41 7.7.2. Work at sea ......................................................................................................................... 41 7.8. Multicorer (MUC) deployments and distribution of samples ..................................................... 41 7.8.1. Gear description .................................................................................................................. 41 1.1.1. Deployment procedure ....................................................................................................... 42 7.8.2. Distribution of samples ....................................................................................................... 44 7.9. Micropaleontology and biogeochemistry based on MUC samples ............................................ 44 7.9.1. Objectives: ........................................................................................................................... 44 7.9.2. Methods to be used for further investigations in the laboratory: ...................................... 46 7.9.3. Work at sea: ........................................................................................................................ 46 7.9.4. Preliminary results: ............................................................................................................. 47 2 7.10. Meiofauna ............................................................................................................................... 52 7.11. Molecular diversity and distribution of Foraminifera: phylogenetic and environmental DNA sequencing studies. ................................................................................................................................. 52 7.11.1. Objectives ............................................................................................................................ 53 7.11.2. Work at sea ......................................................................................................................... 54 7.11.3. Preliminary results .............................................................................................................. 55 7.12. Preliminary results on benthic and hyperbenthic Copepoda ................................................. 58 7.12.1. Objectives: ........................................................................................................................... 58 7.12.2. Work at sea: ........................................................................................................................ 58 7.12.3. Preliminary Results: ............................................................................................................. 59 7.13. Parasitic Crustaceans of the Kurile‐Kamchatka trench ........................................................... 66 7.13.1. Objectives: ........................................................................................................................... 66 7.13.2. Work at Sea: ........................................................................................................................ 66 7.13.3. Preliminary results: ............................................................................................................. 66 1.1.1.1. Copepoda .................................................................................................................... 66 1.1.1.2. Ascothoracida .............................................................................................................. 68 1.1.1.3. Tantulocarida .............................................................................................................. 69 7.14. Species diversity of Ostracoda (Crustacea) of the