Marine Biology

, Volume 55, Issue 1, pp 69–78 | Cite as

The shallow-water macrobenthos of a northern New England estuary

  • P. F. Larsen


In November 1973 the benthic macrofauna of two shallow-water areas in the lower Sheepscot River estuary (New England, USA) was quantitatively sampled. Numerical classification of the data, in both the normal and inverse modes, produced 4 site-groups and 7 species-groups. Each site-group was characterized by at least one of the species-groups. The fauna of the site-groups differed in several community parameters, particularly the patterns of dominance, but it was not possible to correlate these differences with any of the several extrinsic factors measured. A factor, or factors, related to water-column stability is the probable overriding ecological determinant of the observed community patterns. Comparisons with an earlier investigation in 1955 demonstrate dramatic changes in density, dominance and species composition.


Species Composition River Estuary Early Investigation Extrinsic Factor Community Pattern 
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Copyright information

© Springer-Verlag 1979

Authors and Affiliations

  • P. F. Larsen
    • 1
  1. 1.Bigelow Laboratory for Ocean SciencesWest Boothbay HarborUSA

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