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

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 exp...

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Bibliographic Details
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
Description
Summary: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 ...

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