Variations in the Aquatic Vegetation of the Welland River (Ontario, Canada) Above and Below an Industrial Waste Discharge

Variations in the Aquatic Vegetation of the Welland River (Ontario, Canada) Above and Below an Industrial Waste Discharge

The zonation of aquatic macrophytes, particularly Typha and Sagittaria sp. and associated periphyton communities, were investigated in relation to industrial point source discharges to the Welland River, Ontario. Severe reductions of macrophyte species densities and macrophyte and periphyton diversi...

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Veröffentlicht in:Journal of Great Lakes research 1983, Vol.9 (2), p.317-325
Hauptverfasser: Dickman, Michael, Prescott, Cindy, Kaiser, Klaus L.E.
Format: Artikel
Sprache:eng
Schlagworte:
Freshwater
industrial wastewater
Macrophytes
phytoplankton
Rivers and Streams
Sagittaria
Typha latifolia
water pollution effects
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Zusammenfassung:The zonation of aquatic macrophytes, particularly Typha and Sagittaria sp. and associated periphyton communities, were investigated in relation to industrial point source discharges to the Welland River, Ontario. Severe reductions of macrophyte species densities and macrophyte and periphyton diversity were found immediately below the outfalls with distinct recovery zones in the downstream part. Normal macrophyte and periphyton density and diversity occurred at sites approximately 1.6 km below the outfall.
ISSN:0380-1330
DOI:10.1016/S0380-1330(83)71901-5