Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

The Effects of Sieve Size on Benthic Community Composition Analysis

S. Ian Hartwell and Allan K. Fukuyama
Journal of Coastal Research
Vol. 31, No. 6 (November 2015), pp. 1531-1536
Stable URL: http://www.jstor.org/stable/43598480
Page Count: 6
  • Read Online (Free)
  • Download ($20.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Preview not available

Abstract

Sediment samples were collected from the deep portion of Kachemak Bay, Alaska, for chemical analysis, toxicity testing, and infaunal community assessment as part of a larger Cook Inlet project. The benthos samples were sieved through nested 1.0- and 0.5-mm screens to allow a comparison of the relative efficacy of the two techniques. The community was highly diverse at all sampled locations (Shannon-Weiner Index > 3). Abundance was dominated by a relatively small number of species. A significantly higher number of individuals and species were retained on the 0.5-mm screen. Sieving the benthic organisms with a 1.0-mm sieve introduced biases in the data relative to the 0.5-mm screen, including calculations such as diversity and other parameters such as feeding guild distributions and benthic indices. Using a 0.5-mm mesh sieve did increase sample analysis costs and resulted in a larger number of individual organisms that were not identified to species.

Page Thumbnails

  • Thumbnail: Page 
[1531]
    [1531]
  • Thumbnail: Page 
1532
    1532
  • Thumbnail: Page 
1533
    1533
  • Thumbnail: Page 
1534
    1534
  • Thumbnail: Page 
1535
    1535
  • Thumbnail: Page 
1536
    1536