Diurnal variation of Texas 'brown tide' (Aureoumbra lagunensis) in relation to metals

V. K. Sharma, K. B. Rhudy, Frank J Millero

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The diurnal variability of Aureoumbra lagunensis, dissolved metals (Cd, Pb, Mn, Cr, Cu, Zn, Ni, Se, and Fe), and environmental parameters (salinity, temperature, turbidity, pH, and dissolved oxygen) were studied to understand the role of metals in the occurrence of the Texas 'brown tide.' The A. lagunensis densities were high in the afternoon; suggesting the influence of light on the growth of A. lagunensis. The results indicate that metals, Cd, Pb, Mn, Cr, and Se may not be influencing the growth of A. lagunensis. The dissolved Cu, Zn, and Ni concentrations were inversely related with A. lagunensis densities while Fe had positive relationship with A. lagunensis. The spectroscopic characterization of the surfaces of A. lagunensis suggests that these metals might be playing a role in the occurrence of Texas 'brown tide' through involvement of-OH and -CH functional groups on the surfaces of A. lagunensis.

Original languageEnglish (US)
Pages (from-to)1077-1088
Number of pages12
JournalJournal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume35
Issue number7
StatePublished - Aug 2000

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brown tide
Tides
diurnal variation
Metals
metal
Turbidity
Dissolved oxygen
Functional groups
functional group
turbidity
dissolved oxygen
salinity
temperature
Temperature

Keywords

  • Algal blooms
  • Aureoumbra lagunensis
  • Brown tide
  • Metals
  • Texas

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Diurnal variation of Texas 'brown tide' (Aureoumbra lagunensis) in relation to metals. / Sharma, V. K.; Rhudy, K. B.; Millero, Frank J.

In: Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering, Vol. 35, No. 7, 08.2000, p. 1077-1088.

Research output: Contribution to journalArticle

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