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.

Effects of Physical State and Latitude on Sandy Beach Macrofauna of Eastern and Southern Australia

Nicole Hacking
Journal of Coastal Research
Vol. 23, No. 4 (Jul., 2007), pp. 899-910
Stable URL: http://www.jstor.org/stable/4496102
Page Count: 12
  • 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.
Effects of Physical State and Latitude on Sandy Beach Macrofauna of Eastern and Southern Australia
Preview not available

Abstract

Macrofaunal communities of beaches in eastern Australia were investigated for relationships of species number, abundance, and biomass with the physical characteristics of the beach environment (expressed numerically as the dimensionless fall velocity and beach state index [BSI]). A range of physical beach states across three biogeographical regions was sampled for macrofauna at low tide during summer months, and the data were regressed and compared. Results showed that species number, abundance, and biomass increased from reflective to ultradissipative shore conditions (abundance and biomass increasing logarithmically). Species number showed the same numerical relationship with BSI for each of the regions studied, the common regression equation showing that nearly 90% of variation in macrofaunal species number between beaches can be explained by this compound index of physical parameters. Abundance and biomass showed similarities in response to BSI, although at different orders of magnitude by region. The results of a multiple regression including latitude suggest that, although species richness is almost directly related to physical beach processes, abundance and biomass are determined more by a combination of surf zone processes and climatic factors specific to each biogeographic region.

Page Thumbnails

  • Thumbnail: Page 
[899]
    [899]
  • Thumbnail: Page 
900
    900
  • Thumbnail: Page 
901
    901
  • Thumbnail: Page 
902
    902
  • Thumbnail: Page 
903
    903
  • Thumbnail: Page 
904
    904
  • Thumbnail: Page 
905
    905
  • Thumbnail: Page 
906
    906
  • Thumbnail: Page 
907
    907
  • Thumbnail: Page 
908
    908
  • Thumbnail: Page 
909
    909
  • Thumbnail: Page 
910
    910