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Role of reef fauna in sediment transport and distribution - Studies from Tektite I and II

Helgol_nder wissenschaftliche Meeresuntersuchungen

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DOI: 10.1007/BF01609502

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Abstract

1. Reef organisms may play a major role in the transport and distribution of sediment on the sea floor adjacent to coral reefs. 2. Some fish such as Malacanthus plumieri (Bloch) selectively transport and collect certain types of sediment (such as larger coral and shell fragments). 3. The random movement of crawling or burrowing organisms may cause a large amount of sediment to be shifted laterally on the sea floor. On slopes, a net downhill displacement may result. 4. The surface configuration and internal structure of the sediment is rapidly changed by faunal mixing. Ripple marks formed by waves or currents are obliterated by the activity of organisms in only a few weeks in the environment studied. Internal structure (bedding) near the sediment-water interface is similarly destroyed in a short period of time. 5. Larger clasts (including empty shells) on the sea floor tend to be buried by faunal undermining. The rate of burial depends primarily on the grain size of the substrate. 6. The random movement of fauna on the sea floor may produce a predominantly concave-up orientation of pelecypod shells and shell fragments on the sea floor - the opposite of that produced by the activity of waves or currents. ?? 1973 Biologischen Anstalt Helgoland.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Role of reef fauna in sediment transport and distribution - Studies from Tektite I and II
Series title:
Helgol_nder wissenschaftliche Meeresuntersuchungen
DOI:
10.1007/BF01609502
Volume
24
Issue:
1-4
Year Published:
1973
Language:
English
Publisher:
Springer-Verlag
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Helgol_nder wissenschaftliche Meeresuntersuchungen
First page:
91
Last page:
101