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ROV PHOCA

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Expedition 64PE475 : IceAGE_KR - Hydothermal Vent Fields North of Iceland

Chief Scientist: Dr. Sabine Gollner, NIOZ, NL

Expedition 64PE475 took place between 1st and 15th of July, 2021  at the Kolbeinsey, Grimsey and Strytan vent fields North of Iceland.

Objectives of the cruise were to collect samples to study (1) the ecological connectivity at vent field scale including distribution of vent faunae and their adaptations to extreme environmental conditions, (2) the role of archaeal symbionts on host evolution and ecology, as well as nutrient cycling and (3) paleoenvironmental records.

ROV PHOCA was used to take pictures/videos from vent fields, to sample rocks and sediments with associated microbial and faunal communitie, to deploy and recover faunal settlement substrates and to deploy and recover hydrophones at and near hydrothermal vents.

During 64PE475, 13 scientific dives in water depths between 75 and 415 m were conducted.

Images (unless otherwise noted) : ROV-Team GEOMAR; for enquiries on utilisation of image material please contact Public Relations Dept GEOMAR or Dr. Friedrich Abegg .

 

ROV PHOCA on aft deck of RV Pelagia, off the North Icelandic coast
ROV PHOCA with hydrophones shortly before deployment.
Fish cf. Brosme brosme (tusk).
Temperature Probe at rock with ascidians.
Settlement experiments close to encrusting sponges.
Sea urchin cf. Strongylocentrotus purpuratus.
Temperature probe at small chimney.
Temperature probe in bacterial mat.
Sea anemones Hormathia nodosa.
Anemone cf. Hormathia nodosa; tube covered by filamentous bacteria.
Active chimney in Grimsey hydrothermal vent field.
Hydrophone in Grimsey hydrothermal vent field.
Upper part of large chimney in Strytan hydrothermal vent field.
Overhanging rock with anemones, sponges, bryozoans and many more.
Accumulation of anemones in exposed location (inactive chimney?).

  • Scientific Head

    Dr. Friedrich Abegg
    GEOMAR Helmholtz Centre for Ocean Research Kiel
    Wischhofstr. 1-3
    D-24148 Kiel
    Technology & Logistics Centre
    Tel.: 0049 431 600-2134
    Fax: 0049 431 600-2680
    E-mail: fabegg(at)geomar.de 


    Technical Head

    Martin Pieper (Dipl. Ing.)
    Technology & Logistics Centre
    Tel.: 0049 431 600-1688
    Fax: 0049 431 600-2680
    E-mail: mpieper(at)geomar.de 


    Scientific Advisor

    Dr. Peter Linke
    Technik- & Logistikzentrum
    Tel.: 0431 600-2115
    Fax: 0431 600-1601
    E-mail: plinke(at)geomar.de

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