Preface The expedition ARK XIX/3 with the German icebreaking RV ...

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Table B5.6-1: Co-ordinates of MUC samples collected for macro-scale patchiness of meiofauna date Longitude Latitude Station nr habitat # cores Formol #cores Aceton # cores freezer 28/06 72 0 25 14 43 49 64/312 Centre 1 28/06 72 0 26 14 43 49 64/313 Centre 1 1 28/06 72 0 25 14 43 54 64/314 Centre 1 1 30/06 72 0 17 14 43 85 64/321 Beggiatoa 1 1 30/06 72 0 18 14 43 85 64/322 Beggiatoa 1 1 30/06 72 0 18 14 43 81 64/324 Beggiatoa 2 8/07 72 0 37 14 43 52 64/353 Active 2 1 1 8/07 72 0 05 14 44 18 64/356 Pogonophor 2 a 8/07 72 0 05 14 44 14 64/357 Pogonophor 1 1 a 10/07 72 0 21 14 42 47 64/362 Outer rim 2 10/07 72 0 23 14 42 47 64/363 Outer rim 2 1 10/07 72 0 05 14 44 04 64/367 Pogonophor 2 1 1 a 15/07 71 41 96 13 26 10 64/390 Reference 2 3 1 1 15/07 71 85 97 14 45 41 64/395 Reference 1 3 1 After removal of the fish 4 cores were collected from underneath it, in order to look for the disturbance or enrichment effect on the present microbiota (Corinna Kanzog, AWI) and meiofauna (UGent). This experiment was done in collaboration with Michael Klages (AWI). Table B5.6-2: Co-ordinates of ROV push cores collected for micro-scale patchiness of meiofauna. date Long. N Lat. E Dive Habitat 1 Habitat 2 Habitat 3 site nr Core nr Core nr Core nr 29/06 72 0.163 14 43.880 219 4-Beggiatoa 5- Beggiatoa. 1 - Beggiatoa. 1/07 72 0.004 14 43.875 220 3 -# 5- Beggiatoa. 6- Few pogo pogonophora. 7/07 72 0.360 14 43.558 222 12-few 11 –Sed. 10-Beggiatoa Active N pogonophora 13/07 72 0.360 14 43.546 224 23-few 28-Few pogo 22- Beggiatoa Active N pogonophora 16/07 72 0.169 14 42.180 225 6- at 20 cm fish 9-at 50 cm fish 11-at 2 cm fish 12 – below fish 23-below fish 22-below fish Acknowledgements I would like to take the opportunity to thank first of all Michael Klages for his perfect organisation and coordination of the cruise. I thank Antje Boetius for all the effort she - 227 -
has spent in organising the coring and all her other input on board, including introducing us in the HMMV microbiology. Norbert Lensch and Tom Feseker took great care of the MUC sampling. Jan Wegner provided us with video images on the MUC deployments in situ, which will make blind sampling never the same again. The people of Genavir are thanked sincerely for anticipating maximally to our scientific wishes. The crew of "Polarstern" for their continuously help and taking care. All participants of the ARK XIX/3b for their pleasant company. And last but not the least Melanie Bergmann and also Natalia Kukina, for helping me in processing the mud. C. Cruise leg ARK XIX/3c: Interdisciplinary research at the deep-sea long-term station AWI-"Hausgarten" – an Introduction Soltwedel, T. and the shipboard scientific party The deep sea represents the largest ecosystem on earth. Due to its enormous dimensions and inaccessibility, the deep-sea realm is the world’s least known habitat. To understand ecological ties, the assessment of temporal variabilities is essential. Only long-term investigations at selected sites, describing seasonal and interannual variations, can help to identify changes in environmental settings determining the structure, the complexity, and the development of deep-sea communities. The opportunity to measure processes on sufficient time scales will also help to differentiate between natural variabilities and environmental changes due to anthropogenic impacts. High latitudes are amongst the most sensitive environments in respect to climate change, a fact urgently demanding the assessment of time series especially in polar regions. AWI-“Hausgarten” represents the first and only deep-sea long-term station at high latitudes. Following a pre-site study using the French ROV "Victor 6000", “Hausgarten” was established in summer 1999 in the eastern Fram Strait west off Spitsbergen (Fig. C1). Beside a central experimental area at 2500 m water depth, we defined 9 stations along a depth transect between 1000 - 5500 m, which are revisited yearly to analyse seasonal and interannual variations in biological, geochemical and - 228 -
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Preface The expedition ARK XIX/3 wi
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B. 1 Cruise leg ARK XIX/3b: An intr
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The ARK XIX/3 expedition A. 1 Itine
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positioning and navigation of the "
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was followed to obtain video materi
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On Friday morning the 20 th of June
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Fig. A1-2: The working area of the
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"Polarstern" (actual air temperatur
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6000" was still at depth "Polarster
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aseline navigation antennae which a
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Fig. A1-3: Entire cruise track of R
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At end of the leg pressure rising b
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The temperatures during the cruise
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Most frequent wind direction was so
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A. 3.1 High resolution seabed mappi
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On the other hand, the accuracy of
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The sampling campaign was also unde
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Hydrosweep DS2 is installed onboard
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Fig. A4.2-2: Normalized backscatter
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In addition to the micro bathymetry
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ackscatter value of -37.0dB, -38.9d
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athymetry and angular backscatter d
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A. 4.3 Sedimentary and hydrodynamic
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glacial periods. There is also evid
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Fig. A4.3.2-2: Visualisation of dif
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It seems that all the mounds along
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Visible calcareous fauna removed (b
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Fig. A4.3.3-2 Location of SAMS Phot
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Box Core Sample Log Sheet Station N
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A. 4.3.4 Influence of mound topogra
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A. 4.3.5 Photo lander deployment on
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- UMI data logger controlling a tra
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Fig. A4.3.5-3. Close-up view of the
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Lineated features are present NE of
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CARACOLE Cruise Report 30/07/2001 (
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intermediate nepheloid layers (Dick
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Fig. A4.4.1-2. Location of main stu
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A. 4.4.3 Biogeoprocesses along the
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in the database with the exact posi
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The areas with significant benthic
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predators and strong bottom current
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faunal distribution. Palaentologica
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ocks predate the last glaciation, s
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A. 4.4.6 Biological and geological
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Hovland M, Croker PF, Martin M (199
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Live fauna Sediments Live fauna and
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sites can subsequently be transport
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4) The NSOW has similar water mass
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0 100 200 300 400 500 600 700 800 P
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A. 4.8 Deep water coral ecology and
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and video observations made. On ret
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Fig. A4.8.2-2: This orange, planar
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Fig. A4.8.2-4: Feather-shaped alcyo
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Fig. A4.8.2-7: Top left) Yellow alc
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scour or demersal trawling. The gro
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survey at frequencies of 38, 70, 12
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"Belgica mounds" - Porcupine Seabig
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"Twin mounds" - Porcupine Bank 14°
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corals were alive, relatively abund
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Network Setup for Tests The setup f
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are only initial testings and much
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pressure produced as a consequence
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surrounded by elevated sediment fea
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B. 2 Microbathymetry on ROV "Victor
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Pitch correction Due to assembling
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Maps Complete area Håkon Mosby Mud
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B. 3 Geochemistry, geophysics and s
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Heat Flow HMMV 2m # # # # # # # # #
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Lat_dec. Lon_dec Name k T_0m PS64/s
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Temperature / Gravity Corer # GC9 #
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Table B3.2-1: Technical specificati
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Sound velocity: As the cores all co
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Page 181 and 182: Fig. B3.4-1b: Lithological descript
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Page 185 and 186: Fig. B3.4-1f: Lithological descript
Page 187 and 188: hydrotroilite and gas hydrate, this
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Page 191 and 192: B. 5 Biological investigations at t
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Page 225 and 226: References Milkov, A., Vogt, P., Ch
Page 227: ROV "Victor 6000" The ROV "Victor 6
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Page 243 and 244: C. 4 Marine Geology Kukina, N. Majo
Page 245 and 246: 2° 3° 4° 5° 6° PS64/481 79°20
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Page 253 and 254: material via the Transpolar Drift t
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Page 261 and 262: C. 6 Debris on the seafloor at “H
Page 263 and 264: Results A summary of the results is
Page 265 and 266: enthic community are of crucial imp
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Climate models predict that global
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90 mean copepod densities/ 10 cm 2
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- Molecular phylogeny and phylogeog
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Species Stations Tmetonyx sp.1 326-
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was used to terminate and sample th
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openings of 45° at both sides the
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Station Date Time PositionLat Posit
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E. Participating institutes / compa
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Acronym Participants iSiTEC GmbH IS
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F. Participants F. 1 Participants A
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F. 2 Participants ARK XIX/3b Armand
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F. 3 Participants ARK XIX/3c Bauerf
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Preface The expedition ARK XIX/3 with the German icebreaking RV ...

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