Taxonomic and nomenclatural revision of Sl�de?ek's list of ciliates (Protozoa: Ciliophora) as indicators of water quality

Foissner, Wilhelm

doi:10.1007/bf00017483

Cited by 77 publications

(46 citation statements)

References 113 publications

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“…The ciliates abundance and diversity have been used as a water quality indicator and ecosystems dynamics (FOISSNER, 1988). Heterotrophic ciliates feed on microorganisms in aquatic ecosystems and they are important in the energy flow (SHERR; SHERR, 1988;DECAMP et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

2017

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Bauer et al.: Plankton and water quality in a shrimp farm 495Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regenerationWater quality, chlorophyll a, phytoplankton, proto and mezo-zooplankton abundance were spatiotemporally evaluated in an estuary receiving effluents from a Pacific white shrimp Litopenaeus vannamei farm in Patos Lagoon estuary, Southern Brazil. Samples were taken before (BD) and; 1 day (1 PD) 5 days (5 PD), 10 days (10 PD), 20 days (20 PD) and 30 days (30 PD) after the effluents discharge. Some water quality parameters were affected by the effluents discharge; however, these changes were restricted to a distance of 20 m from the effluent discharge channel for a period of 5 days. The microbial community was dominated by chlorophyceae, followed by diatoms, cyanobacteria and ciliates. There was an increase in the abundance of different groups on the 1 PD sampling compared to BD. The zooplankton abundance was low in practically all sites, except for 30 PD sampling. The meso-zooplanktonic organisms were represented by copepods, mostly Acartia tonsa. Despite some effects on water quality and phytoplankton and protozooplankton abundance until 5 PD sampling, these alterations dissipated in a short period of time. We conclude that the environment quickly assimilated the effluents discharge, and the water quality parameters remained within the limits stipulated by standard guidelines. Parâmetros de qualidade da água, composição e abundância do fitoplâncton e do proto e meso-zooplâncton foram avaliadas espaço-temporalmente no estuário receptor de efluentes de uma fazenda produtora de camarão Litopenaeus vannamei na Lagoa dos Patos, Brasil. As amostras foram tomadas em sete pontos antes (BD) e; 1 dia (1 PD), 5 dias (5 PD), 10 dias (10 PD), 20 dias (20 PD) e 30 dias (30 PD) após a descarga dos efluentes. Alguns dos parâmetros de qualidade de água sofreram alterações devido ao lançamento dos efluentes, restritos a 20 m de distância do canal de descarga dos efluentes e por um período máximo de 5 dias. A comunidade microbiana sofreu variação em 1 PD comparativamente a BD. A abundância zooplanctônica foi baixa na maioria das amostras, com exceção de alguns pontos em 30 PD. Os copépodos foram o único grupo encontrado no meso-zooplâncton, na sua grande maioria a espécie Acartia tonsa. Apesar de modificações em alguns parâmetros avaliados nos primeiros dias após o lançamento dos efluentes, essas alterações foram assimiladas em um curto período. Os parâmetros de qualidade de água mantiveram-se dentro dos limites estipulados pela legislação e o ambiente assimilou de maneira rápida as mudanças ocorridas. AbstrAct

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Section: Discussionmentioning

confidence: 99%

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

2017

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“…Each sample of biofilm was counted in three replicates of 0.05 ml each. Ciliates were identified following Curds (1982), Curds et al (1983) and Foissner (1988).…”

Section: Methodsmentioning

confidence: 99%

Structure of a protozoan community in a percolating filter

Mistri

Gavinelli²,

Gorni³

1994

Bolletino di zoologia

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Structural factors of the microbial community of a percolating filter have been investigated. The presence of some ciliate species has been related to physico-chemical and plant operational variables by means of ordination procedures. In an 87-d study period, large variations in density of some species were observed. A limited number of environmental parameters strongly affect ciliate community composition. Major structural factors are sloughed biofilm wasting and nitrogen loading: both induce disturbance and make the community revert to a less mature phase. Moderate disturbance episodes reduce the effectiveness of competitive mechanisms.

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“…The abundance of ciliates was expressed in number of cells per cm 2 as ratio between the volume (ml) collected at each station, and the total amount of sampled area (cm 2 ). Saprobic evaluations were made using the saprobic values given by Foissner (1988) and Foissner et al (1995).…”

Section: Sampling and Enumeration Of Protozoamentioning

confidence: 99%

Ciliated protozoa and saprobical evaluation of water quality in the Taro River (northern Italy)

Madoni

Zangrossi

2005

Italian Journal of Zoology

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Ciliate protozoans were collected at three stations during one year from water-sediment interface of a branch located in the hyporhithron section of the River Taro (northern Italy). A total of 89 species of ciliates belonging to 59 genera were found, of which 26 were bacterivorous, 31 algivorous, 21 omnivorous and 11 carnivorous. Their distribution varied both along the river and in time. Community structures were analysed using some statistical methods, and this allowed the determination of similarity among stations and between species and stations. The ciliate communities at the three stations proved quite similar. A saprobic evaluation of the section of the river was made using the taxocenoses observed, and the results showed that the microfauna was composed of ß-mesosaprobic species typical of watercourses with moderate organic load content.

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Taxonomic and nomenclatural revision of Sl�de?ek's list of ciliates (Protozoa: Ciliophora) as indicators of water quality

Cited by 77 publications

References 113 publications

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

Structure of a protozoan community in a percolating filter

Ciliated protozoa and saprobical evaluation of water quality in the Taro River (northern Italy)

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