Ecology and assessment of the benthic diatom communities of four Lake Erie estuaries using Lange-Bertalot tolerance values

Gerald V. Sgro, Michael E Ketterer, Jeffrey R. Johansen

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Diatom composition of four Lake Erie estuaries was related to seasonal factors, year, location within the estuaries, and water quality parameters including nutrient and metals concentrations. Canonical correspondence analysis (CCA) revealed seasonality as the most important factor determining variability in diatom species composition among sites and dates. Alkalinity, pH, silicate, orthophosphate, and nitrite concentrations were water chemistry parameters correlated with diatom community composition. Eigenvalues for the first two CCA axes of nutrient/physical data and species data were higher than the first two CCA axes of metals data and species data. In addition, the water quality of these estuaries was evaluated using an index composed of Lange-Bertalot pollution tolerance values. The Lange-Bertalot index scores indicated that the Ashtabula estuary had the best water quality of the study sites. Lange-Bertalot index scores were highly correlated with a gradient of disturbance represented by the first axis of a principle components analysis of sites and nutrient data (Spearman ρ = 0.7). The Lange-Bertalot tolerance values could be useful for discriminating 'good' sites from "bad" sites among the Lake Erie estuaries.

Original languageEnglish (US)
Pages (from-to)239-249
Number of pages11
JournalHydrobiologia
Volume561
Issue number1
DOIs
StatePublished - May 2006

Fingerprint

Lake Erie
Bacillariophyceae
Estuaries
Ecology
Lakes
diatom
estuaries
tolerance
estuary
ecology
correspondence analysis
Nutrients
lake
Water quality
water quality
nutrient
nutrients
pollution tolerance
Chemical analysis
metals

Keywords

  • Biomonitoring
  • Diatoms
  • Estuary
  • Lake Erie
  • Lange-Bertalot Index
  • Water quality

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography
  • Environmental Science(all)
  • Pollution
  • Water Science and Technology

Cite this

Ecology and assessment of the benthic diatom communities of four Lake Erie estuaries using Lange-Bertalot tolerance values. / Sgro, Gerald V.; Ketterer, Michael E; Johansen, Jeffrey R.

In: Hydrobiologia, Vol. 561, No. 1, 05.2006, p. 239-249.

Research output: Contribution to journalArticle

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