Response of deep-sea benthic foraminifera to a simulated sedimentation event.

Linke, Peter , Altenbach, A. V., Graf, Gerhard and Heeger, T. (1995) Response of deep-sea benthic foraminifera to a simulated sedimentation event. Open Access Journal of Foraminiferal Research, 25 . pp. 75-82. DOI 10.2113/gsjfr.25.1.75 .

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Abstract

The response of deep-sea benthic foraminifera to a simulated sedimentation event was assessed in a shipboard microcosm by using transmission electron microscopy, organic carbon, adenosine nucleotide, ETS assays and live observations. A rapid activation of foraminiferal metabolism was detected with an increase in ETS activity and a distinct decrease in AMP to build up A TP. Based on this phy iological-awakening reaction, food was gathered by pseudopodia] activity and ingested in high quantities. Three days after feeding, high quality food was found in the digestion vacuoles leading to an increase of 89% in individual organic carbon contents.
During the following six days, this food was converted into biomass as lipids and other reserve compounds were built up. After ten days, digestion vacuoles contained degraded matter onJy. The final shift in individual biomass
was 16.9% in comparison to the initial population.

Document Type: Article
Keywords: Deep-sea benthic foraminifera, RV Meteor, M7/4
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
OceanRep > Institute for Marine Science Kiel
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.2113/gsjfr.25.1.75
ISSN: 0096-1191
Expeditions/Models/Experiments:
Date Deposited: 18 Feb 2008 17:27
Last Modified: 21 Mar 2018 12:24
URI: http://oceanrep.geomar.de/id/eprint/8305

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