Seabed drag coefficient over natural beds of horse mussels (<I>Atrina zelandica</I>)

Clicks: 1
ID: 294699
1998
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal

Ranked #994 of 1,397 articles by views in journal of marine research

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 1,397 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Measurements of seabed drag coefficient, C 100 , were made under tidal currents at four sites in Mahurangi Harbour, New Zealand. At the first three sites the dominant roughness element was the pinnid bivalve, Atrina zelandica (horse mussel). At the fourth site, which was devoid of horse mussels but covered in cockle shells, patches of seaweed and crab burrows, C 100 was smallest (0.0055), but still twice as large as the value typically applied to abiotic, flat, cohesionless seabeds (0.0025). The mean drag coefficient plus-or-minus standard error at the three sites with horse mussels was: 0.0082 ± 0.0010 (site 1); 0.0096 ± 0.0009 (site 2); 0.0115 ± 0.0016 (site 3). There were no clear differences amongst sites 1, 2 and 3 in terms of the attributes of individual horse mussels (e.g. shell height, width or orientation), which could have been used to explain the ranking of the drag coefficients. There were, however, differences amongst the three sites in terms of spatial distribution of individual bivalves. The site with the highest density of horse mussels, site 1, had the lowest drag coefficient and an areal concentration (λ) of horse mussels higher than typical values cited for the critical concentration (λ c ) for the onset of skimming flow over various idealized, three-dimensional roughness elements. At sites 2 and 3, the drag coefficient was given by: Formula math. which was valid for λ < λ c , where K is von Karman's constant, k is the horse mussel height (i.e., protrusion above the seabed), m 100 and λ c 0.2. The stable eddies that are hypothesized to lodge between roughness elements at concentrations greater than λ c may influence benthic community dynamics.
Reference Key
openalex_W2017180687 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Malcolm O. Green, Judi E. Hewitt, Simon F. Thrush
Journal journal of marine research
Year 1998
DOI
10.1357/002224098765213603
URL
https://doi.org/10.1357/002224098765213603
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.