Source and Persistence of Nematodes in Surface Waters

Chaudhuri, Nilay; Siddiqi, Rahmanullah; Engelbrecht, Richard S.

doi:10.1002/j.1551-8833.1964.tb01187.x

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…We found no real evidence to support the contention by Chaudhuri et al (1964) that the main source of nematodes in surface waters is effluent from sewage treatment plants. Some of the Diplogaster, Rhabditis and Panagrolaimus at Brantford and Cayuga may have come from discharges from the sewage treatment plants upstream, but they may have been equally of freshwater or soil origin.…”

Section: Discussioncontrasting

confidence: 55%

“…Several studies carried out to determine the habitat source of nematodes entering water purification plants conclude that the major contribution is from sewage effluents, with only small numbers being added by subsurface drainage and surface run-off (Chang& Kabler 1962;Chaudhuri et al 1964;Baliga et al 1969). We felt that improved sampling techniques and an extended period of study would yield a different picture.…”

mentioning

confidence: 99%

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Nematodes from river drift and surface drinking water supplies in southern Ontario

Mott

Harrison

1983

Hydrobiologia

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Sixty-six genera'of nematodes representing 37 families were collected over a 13-month period from untreated and treated water from three water treatment plants in southern Ontario. Two plants receive water from the Grand River which drains agricultural, residential and industrial regions, the third from a small stream in an agricultural district. Specimens were isolated by filtration from weekly samples of untreated and treated water, most were identified to genus but a few to species.Estimated mean density in the organic drift of the river ranged from 0.58 individuals per litre in winter, when it was under ice, to 10.57 per litre during the spring thaw. Most of the 66 genera found passed through the treatment plants and over 50% of these were still motile.Eleven genera were abundant at some time of the year, six known only from soil-dwelling forms and five from aquatic or soil/ aquatic species. There was no indication that sewage purification works were a major source of any genus. There were a few plant parasites.Aquatic nematodes occurred during most of the year although they were more abundant during the warmer months, high densities of soil nematodes were a feature of the spring thaw and rains and during heavy autumn rains. More than 50% of the specimens were juveniles and some common genera lacked males.

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Section: Discussioncontrasting

confidence: 55%

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confidence: 99%

Nematodes from river drift and surface drinking water supplies in southern Ontario

Mott

Harrison

1983

Hydrobiologia

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“…This arrangement made possible a comparative evaluation of these two processes as nematode breeding sites. Furthermore, previous studies of the origin of the nematode population found in the Boneyard-Saline Branch Drainage System 6,7 were of assistance in estimating the relative contribution of nematodes discharged by the treatment plant. The nematode population at various locations within the treatment plant was monitored weekly from September 1962 to mid-September 1963.…”

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confidence: 99%

Nematodes in an Aerobic Waste Treatment Plant

Chaudhuri¹,

Engelbrecht²,

Austin³

1965

Journal AWWA

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The objective of this study was to evaluate aerobic waste treatment plants as breeding sites for nematodes and to locate the unit processes and operations favorable for such breeding. The Urbana‐ Champaign (Illinois) Sanitary District waste treatment plant was chosen for this study. This plant uses the two processes, trickling‐filter and activated‐ sludge units, to treat the same domestic waste. This arrangement made possible a comparative evaluation of these two processes as nematode breeding sites. Furthermore, previous studies of the origin of the nematode population found in the Boneyard‐Saline Branch Drainage System were of assistance in estimating the relative contribution of nematodes discharged by the treatment plant. The nematode population at various locations within the treatment plant was monitored weekly from September 1962 to mid‐ September 1963.

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