Availability of nutrients to a deep-sea benthic microbial community : results from a ship-board experiment
Intact sediment cores from the Vøring-Plateau (Norwegian Sea) were incubated under in situ temperature on board ship with and without the addition of natural detritus to follow the reaction of deep-sea benthic microbial communities to nutrient enrichment. Concentration and enzymatic decomposition of...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Institut für Meereskunde
1991
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| Subjects: | |
| Online Access: | https://oceanrep.geomar.de/id/eprint/56278/ https://oceanrep.geomar.de/id/eprint/56278/1/K%C3%B6ster_M_1991.pdf |
| Summary: | Intact sediment cores from the Vøring-Plateau (Norwegian Sea) were incubated under in situ temperature on board ship with and without the addition of natural detritus to follow the reaction of deep-sea benthic microbial communities to nutrient enrichment. Concentration and enzymatic decomposition of organic material, total microbial number, biomass and production were followed in timecourse experiments. The addition of decomposable organic material caused an immediate stimulation of microbial metabolic processes: following the induction of enzymatic activity, microbial biomass production increased. During the initial period of incubation metabolic processes were also stimulated in the untreated "control" sediments. This "incubation effect" competed with the "feeding effect" caused by the enrichment with organic material. |
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