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Biogenic particle reworking and bacterial-invertebrate interactions in marine Sediments

Biogenic particle reworking and bacterial-invertebrate interactions in marine Sediments
Biogenic particle reworking and bacterial-invertebrate interactions in marine Sediments
Soft-sediment systems are subject to both biotic and abiotic processes that actively and passively redistribute particles. Changes in hydrodynamic regime, such as tides and storms, have the ability to turn over large volumes of sediment even in the deepest oceans. However, it is the role of benthic animals in the reworking of sediment particles (= biotur-bation) that may have the greatest impact on microbial communities and the biogeochem-istry of the system. While the effects of bioturbating fauna on the structure and function of sediment communities has received considerable attention, the relative contribution of the microbial community to organism-sediment relations is still not fully understood. It is known that sediment bacteria play a key role in the biogeochemical cycling of nutrients, provide a nutrient source for infaunal organisms, and are also important in the binding of particles through the production of mucus. Aggregation or dissociation of particles through invertebrate faunal activity, such as feeding or burrow construction, may impact the diver-sity, structure, and function of sediment bacteria and, in turn, have a significant effect on many ecosystem processes. Here we summarise the available literature on faunal-mediated particle transport and explore the mechanistic processes by which invertebrate activity may influence bacterial assemblages.
2329-5252
105-124
American Geophysical Union
Solan, M.
c28b294a-1db6-4677-8eab-bd8d6221fecf
Wigham, B. D.
07fe38d7-d7b9-431b-9f52-32c68954982c
Solan, M.
c28b294a-1db6-4677-8eab-bd8d6221fecf
Wigham, B. D.
07fe38d7-d7b9-431b-9f52-32c68954982c

Solan, M. and Wigham, B. D. (2005) Biogenic particle reworking and bacterial-invertebrate interactions in marine Sediments. In, Coastal and Estuarine Studies: Interactions Between Macro- and Microorganisms in Marine Sediments. (Coastal and Estuarine Studies, 60) 1 ed. American Geophysical Union, pp. 105-124.

Record type: Book Section

Abstract

Soft-sediment systems are subject to both biotic and abiotic processes that actively and passively redistribute particles. Changes in hydrodynamic regime, such as tides and storms, have the ability to turn over large volumes of sediment even in the deepest oceans. However, it is the role of benthic animals in the reworking of sediment particles (= biotur-bation) that may have the greatest impact on microbial communities and the biogeochem-istry of the system. While the effects of bioturbating fauna on the structure and function of sediment communities has received considerable attention, the relative contribution of the microbial community to organism-sediment relations is still not fully understood. It is known that sediment bacteria play a key role in the biogeochemical cycling of nutrients, provide a nutrient source for infaunal organisms, and are also important in the binding of particles through the production of mucus. Aggregation or dissociation of particles through invertebrate faunal activity, such as feeding or burrow construction, may impact the diver-sity, structure, and function of sediment bacteria and, in turn, have a significant effect on many ecosystem processes. Here we summarise the available literature on faunal-mediated particle transport and explore the mechanistic processes by which invertebrate activity may influence bacterial assemblages.

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More information

Published date: 1 January 2005
Additional Information: Copyright 2005 by the American Geophysical Union

Identifiers

Local EPrints ID: 457746
URI: http://eprints.soton.ac.uk/id/eprint/457746
ISSN: 2329-5252
PURE UUID: e8b47182-b4f4-492f-b665-4d64d03f6bd4
ORCID for M. Solan: ORCID iD orcid.org/0000-0001-9924-5574

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Date deposited: 16 Jun 2022 00:29
Last modified: 17 Mar 2024 03:15

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Contributors

Author: M. Solan ORCID iD
Author: B. D. Wigham

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