Skip to main content

Free Content Disturbance, sediment stability, and trophic structure of soft-bottom communities

Download Article:
 Download
(PDF 1,835 kb)
 

Abstract:

Previous studies of marine soft-bottom communities have shown (1) that natural disturbances (especially biologically-mediated disturbances, which are usually localized and recur reasonably frequently) help maintain spatio-temporal heterogeneity of communities, and (2) that biogenic modification of sediment can affect sediment stability with respect to fluid forces and geotechnical properties and that this is an important factor in community organization, particularly in the trophic structure of the macrofauna. It is argued in this paper that natural disturbances, and the ensuing biogenic alterations to sediment stability, may be important in maintaining trophically-mixed communities where deposit feeders do not have an overriding influence on sedimentary properties. The hypothesis is presented that an initial post-disturbance response by micro- and meiobenthos leads to an increase in sediment stability as a result of mucous-binding of sediment, and that this stage may be of critical significance to potential suspension-feeding colonists if they are competing with deposit feeders for space. It is suggested, partly as a corollary to this hypothesis, that there may be marked differences in the structure and function of meiofaunal communities co-occurring with deposit-feeding and suspension-feeding macrofaunas. Implications for macrofaunal trophic structure of seasonal changes in sediment stability are also examined. Several areas for future research are recommended.

Document Type: Research Article

DOI: http://dx.doi.org/10.1357/002224084788520837

Publication date: November 1, 1984

More about this publication?
  • The Journal of Marine Research publishes peer-reviewed research articles covering a broad array of topics in physical, biological and chemical oceanography. Articles that deal with processes, as well as those that report significant observations, are welcome. In the area of biology, studies involving coupling between ecological and physical processes are preferred over those that report systematics. Authors benefit from thorough reviews of their manuscripts, where an attempt is made to maximize clarity. The time between submission and publication is kept to a minimum; there is no page charge.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • ingentaconnect is not responsible for the content or availability of external websites
jmr/jmr/1984/00000042/00000004/art00007
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more