Bloodworms in Distribution Systems

Silvey, J. K. G.

doi:10.1002/j.1551-8833.1956.tb15429.x

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…Chironomid species thrive in almost every conceivable freshwater environment (Oliver, 1971; Edward, 1986; Pinder, 1986) and can infest municipal water supplies (Silvery, 1956; Williams, 1974; Resh & Grodhaus, 1983; Levy et al ., 1986; Ali, 1991; Bay, 1993; Berg, 1995). Therefore, it is not surprising that chironomid larvae are present at all stages of the water‐treatment processes in surface‐derived water‐treatment plants (Price & Gigg, 1997).…”

Section: Introductionmentioning

confidence: 99%

Developmental thresholds and day‐degree requirements of Paratanytarsus grimmii and Corynoneura scutellata (Diptera: Chironomidae): two midges associated with potable water treatment

Olsen

Bale

Leadbeater

et al. 2003

Physiological Entomology

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Abstract. Studies on the development and mortality of Paratanytarsus grimmii (Schneider) and Corynoneura scutellata (Winnertz), which can infest potable water distribution networks, were carried out at eight constant temperatures between 10 C and 27 C. Using weighted linear regression, the developmental thresholds were calculated as 7.9 and 8.7C for P. grimmii and C. scutellata, respectively. Corynoneura scutellata had a day-degree requirement of 172.4 per generation and developed significantly faster (P < 0.001) than P. grimmii with a day-degree requirement of 294.1. Both species were identified as multivoltine with a maximum theoretical number of five generations per year for P. grimmii and seven for C. scutellata. These results are discussed in the context of the management of chironomid infestations within water-treatment works.

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Section: Introductionmentioning

confidence: 99%

Developmental thresholds and day‐degree requirements of Paratanytarsus grimmii and Corynoneura scutellata (Diptera: Chironomidae): two midges associated with potable water treatment

Olsen

Bale

Leadbeater

et al. 2003

Physiological Entomology

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“…Although apparently not a significant problem in California water supplies, snails, worms, and larvae in distribution systems have been reported (3,4) . Eradication of these pests seems to be accomplished generally by removal of their food supply coupled with chemical treatment or physical cleaning, followed by flushing of the mains before the dislodged organisms enter the meters and house plumbing.…”

Section: Appearancementioning

confidence: 99%

Water Quality Problems in Small Water Works Systems

Johnston¹

1957

Journal AWWA

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Operators' Identification Guide to Animals Associated With Potable Water Supplies

Ingram¹,

Bartsch²

1960

Journal AWWA

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The article presents an animal identification guide designed for water utility personnel to identify aquatic animals they may find in connection with their work. This guide identifies an organism as a moss animal or a sponge, or a segmented worm or a roundworm. These animals are not associated with human diseases. They do, however, cause nuisances because of their great abundance in raw‐water sources, water treatment installations, finished‐water reservoirs or distribution systems. More commonly, they are seen during casual microscopic examination and have stimulated questions about their names and origins. The article provides a list of other published resources for animal identification. The article provides a classification of the 25 animals most common in potable water supplies; 23 additional animals associated with such supplies are listed by name only under their appropriate general classification categories. Drawings are provided of each animal.

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Bloodworms in Distribution Systems

Cited by 4 publications

References 5 publications

Developmental thresholds and day‐degree requirements of Paratanytarsus grimmii and Corynoneura scutellata (Diptera: Chironomidae): two midges associated with potable water treatment

Developmental thresholds and day‐degree requirements of Paratanytarsus grimmii and Corynoneura scutellata (Diptera: Chironomidae): two midges associated with potable water treatment

Water Quality Problems in Small Water Works Systems

Operators' Identification Guide to Animals Associated With Potable Water Supplies

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