(Appendix A) Pigment content, microbial biomass and activity, and grain size characteristics in caged and control sites of the Arctic long-term observatory HAUSGARTEN ...

• Main Authors: Gallucci, Fabiane, Sauter, Eberhard-Jürgen, Sachs, Oliver, Klages, Michael, Soltwedel, Thomas
• Format: Dataset
• Language: English
• Published: PANGAEA 2008
• Subjects: AWI; Event label; DEPTH, sediment/rock; Experimental treatment; Experiment; Time coverage; Replicates; Chlorophyll a; Coefficient of variation; Phaeopigments; Total microbial biomass as carbon per unit sediment volume; Esterase activity per sediment volume; Median, grain size; Sorting; Size fraction < 0.004 mm, clay; Silt; Sand; Victor6000 ROV; Remote operated vehicle; ARK-XV/1; ARK-XIX/3c; Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158; Antarc*; Antarctic; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.847777; https://doi.pangaea.de/10.1594/PANGAEA.847777

Present theories of deep-sea community organization recognize the importance of small-scale biological disturbances, originated partly from the activities of epibenthic megafaunal organisms, in maintaining high benthic biodiversity in the deep sea. However, due to technical difficulties, in situ experimental studies to test hypotheses in the deep sea are lacking. The objective of the present study was to evaluate the potential of cages as tools for studying the importance of epibenthic megafauna for deep-sea benthic communities. Using the deep-diving Remotely Operated Vehicle (ROV) "VICTOR 6000", six experimental cages were deployed at the sea floor at 2500 m water depth and sampled after 2 years (2y) and 4 years (4y) for a variety of sediment parameters in order to test for caging artefacts. Photo and video footage from both experiments showed that the cages were efficient at excluding the targeted fauna. The cage also proved to be appropriate to deep-sea studies considering the fact that there was no ... : Supplement to: Gallucci, Fabiane; Sauter, Eberhard-Jürgen; Sachs, Oliver; Klages, Michael; Soltwedel, Thomas (2008): Caging experiment in the deep sea: Efficiency and artefacts from a case study at the Arctic long-term observatory HAUSGARTEN. Journal of Experimental Marine Biology and Ecology, 354(1), 39-55 ...