Printversion of this page
PDF-Version of this page

 

Available Video Clips from Polarstern Expedition ANT-XIII/8

Below you find a selection of available video clips for preview. Please note our terms of reference and contact our communications department, if you are interested to receive footage material for TV or video production.

The video clips are also available in different formats. See the homepage of our media partner IWF (Leibniz Institute for Media in Science).


 

Clip 1: "Landscape I" (2:08)

  • Emperor Penguins in the Atka Bay
  • Polarstern in the central Weddell Sea
  • Crabeater Seals on an ice flow,
  • Large iceberg

Windows Media, 15,4 MB, 2:08 min


 

Clip 2: "Landscape II" (2:41)

  • Larsen A area with the new rocky coastline from the ship. Here, 12 years ago the entire area was still covered by the Larsen A ice shelf
  • Larsen B from the helicopter, glacier with a typical grid pattern of a disintegrating glacier
  • Crabeater Seals
  • Larsen C from helicopter with black hills in the ice shelf
  • Icebergs in Larsen B area

Windows Media, 19,9 MB, 2:41 min


 

Clip 3: Seafloor in Larsen A area (2:30)

  • Deployment and recovery of the remotely operated underwater vehicle (ROV) in the Larsen A area.
  • Soft sediments in front of the Drygalski glacier (Larsen A) with poor epifauna. Brittle stars, sea anemones and tiny fish live on the sediment
  • Since for the Antarctic they are unusually fast growing, sea squirts may indicate a first step of biodiversity shift after the disintegration of the ice shelf. Between the sea squirts there are barrel shaped glass sponges. They probably existed already when the area was still ice shelf covered since they are extremely slow growing.
  • Brown gigantic large naked snail. Stalked sea lilies are a typical faunistic element of the deep sea but here in the Larsen area they exist on the shelf at approximately 250 metres.
  • The sediment is disturbed by a grounding iceberg. With the exception of a few mobile animals such as fish and brittle stars the sea-floor is devoid of any fauna.

Windows Media, 18,8 MB, 2:30 min


 

Clip 4: Seafloor North of the Larsen area (2:30)

  • Reference area north of the Larsen area. The stalked sponges indicate an early stage of recolonisation of the sea floor after iceberg disturbance since they are fast growing. Other animals are lemon yellow snails and compound (colonial) sea squirts.
  • The small scale hill also shows that an iceberg ran aground
  • A gigantic large isopod (crustacean), other yellow and red sponges
  • The high amount of particles in the water column is called marine snow. It consists of organic particles such as unicellular algae that sink to the bottom and provide food for the animals at the sea-floor. The parallel structures also indicate an iceberg scour.
  • Spheric sponge
  • Recent iceberg scours can easily be recolonized by mobile brittle stars. A sea spider (pycnogonid) feeds on a polyp of a cnidarian.
  • At the reference site at water depths of approximately 200 metres, the diversity is higher than at 100 metres.

Windows Media, 18,7 MB, 2:30 min


 

Clip 5: Seafloor at Larsen B area (2:23)

  • At Larsen B the scientists found a bed rock in unusually great water depths, inhabited by corals. Locally also here the rocks are affected by scouring icebergs.
  • Nearby they found more soft sediments with sea anemones, feather stars, „strange“ holes in the sediment, which yet can not be explained, stalked brittle stars and sea cucumbers, which are typical for the deep sea.
  • Patches of clams indicate a cold seep.
  • Swimming sea-cucumber.
  • Sediment scalped by iceberg.
  • Sea squirts are also abundant at Larsen B. It might be possible that they grow here since the disintegration of the ice shelf.
  • Drop stone, twelve-armed star fishes, stalked sponges, corals, icefish, different cnidarians (coral related animals).

Windows Media, 17.6 MB, 2:23 min


 

Clip 6: Use of scientific equipment on board of RV Polarstern I (2:17)

  • Recovery of the Agassiz trawl with lots of stones and corals
  • Deployment and recovery of a multicorer used for sediment analysis and to sample tiny organisms in the sediment
  • Recovery of the bottom trawl, Antarctic cod, Albatrosses

Windows Media, 17.8 MB, 2:17 min


 

Clip 7: Use of scientific equipment on board of RV Polarstern II (2:23)

  • Deployment and recovery of Multiboxcorer
  • Recovery of a trap to catch amphipods (crustaceans) and fish
  • Amphipods caught by the trap
  • Box corer
  • CTD with rosette to sample water and its microbes

Windows Media, 17.7 MB, 2:23 min


 
Printversion of this page
PDF-Version of this page
 

Contact

Dr. Angelika Dummermuth
Media Contact, Alfred Wegener Institute for Polar and Marine Research (AWI)