Thermocyclops decipiens (Kiefer, 1929) (Copepoda, Cyclopoida) as indicator of water quality in the State of Minas Gerais, Brazil

Landa, Giovanni Guimarães; Barbosa, Francisco Antônio Rodrigues; Rietzler, Arnola C.; Maia‐Barbosa, Paulina Maria

doi:10.1590/s1516-89132007000400015

Cited by 38 publications

(46 citation statements)

References 11 publications

(14 reference statements)

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“…Due to the higher water residence time and reduced flow velocity of these lakes, compared to the river, one could expect that calanoids would be better adapted and predominate in these environments (Ferrareze & Nogueira, 2011), and that cyclopoids would predominate in sampling sites located at the Paraná River. However, we observed an inverse pattern, which could be explained by the fact that the studied lakes were mainly mesotrophic, which favours cyclopoid species (Landa et al, 2007), to the detriment of calanoid species, which prevail in oligotrophic environments.…”

Section: Discussionmentioning

confidence: 59%

Copepod assemblage structure (Crustacea: Copepoda) along a longitudinal environmental gradient in a tropical river-floodplain system, Brazil

et al. 2017

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Cite as: Palhiarini, W.S. et al. Copepod assemblage structure (Crustacea: Copepoda) along a longitudinal environmental gradient in a tropical river-floodplain system, Brazil. Acta Limnologica Brasiliensia, 2017, vol. 29, e102. Abstract: Aim: In this study, we analyzed the structure of the copepod community along a longitudinal axis of the last undammed stretch of the Upper Paraná River floodplain, downstream of Porto Primavera reservoir. We hypothesized that (i) copepod assemblage would show an increase in the abundance of organisms, species richness and specific diversity with the distance from the Porto Primavera reservoir, due to the arrival of species from adjacent lakes and tributaries; (ii) copepod abundance and species richness would be higher in tributaries and adjacent lakes located at the floodplain, which show higher environmental heterogeneity and function as a species source; and (iii) spatial patterns of copepod assemblage structure are related to the environmental gradient, since copepods show a rapid response to the variation of environmental conditions. Method: Sampling was performed quarterly from August 2013 to July 2014, at the subsurface of the pelagic region. Sampling sites were located along the Paraná River, in seven of its tributaries, and in eight lakes located in its floodplain. Results: We identified 29 species belonging to two families: Cyclopidae (21 species) and Diaptomidae (eight species). On contrary of our first hypothesis, ANOVA results showed a significant decrease in copepod abundance in the downstream direction. Similarly, the tributaries showed higher values of ecological attributes in the upstream stretch. RDA results showed that in axis 1, the Paraná River and the lakes were positively correlated with conductivity, pH, temperature and suspended organic matter, characterized by the most abundant copepod species. The tributaries, on the other hand, were negatively correlated with turbidity, total nitrogen, total phosphorus and depth. Axis 2 showed a positive correlation of the Paraná River with conductivity and suspended organic matter, and a higher abundance of Argyrodiaptomus azevedoi, Notodiaptomus iheringi, N. henseni, N. cearensis 2 Palhiarini, W.S. et al.

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Section: Discussionmentioning

confidence: 59%

Copepod assemblage structure (Crustacea: Copepoda) along a longitudinal environmental gradient in a tropical river-floodplain system, Brazil

et al. 2017

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“…On the other hand, transparency and conductivity were positively correlated with Thermocyclops decipiens and T. minutus in the oligo/mesotrophic reservoir, in contrast to the expected of finding higher abundance of T. decipiens in the eutrophic reservoir, as commonly found in reservoirs of the southeast of Brazil, in the tropical zone (Nogueira 2001;Landa et al, 2007;Nogueira et al, 2008). Probably due the excessive eutrophication with intense algal blooms and other variables such reservoir morphometry, climate and altitude, Thermocyclops was present but was never dominant during the studied period.…”

Section: Discussionmentioning

confidence: 61%

“…For copepods, Thermocyclops decipiens has been employed in other studies as indicators of eutrophic waters (Landa et al, 2007;Nogueira et al, 2008), because this species is able to maintain a high population density even in the presence of a Cyanobacteria bloom . The species was dominant only in the oligo/mesotrophic reservoir, whereas in the eutrophic reservoir, Tropocyclops prasinus and Acanthocyclops robustus were dominants.…”

Section: Discussionmentioning

confidence: 99%

“…In oligotrophic environments, higher frequency of T. minutus is noticed, whereas in eutrophic waters the presence of T. decipiens is higher. However, in mesotrophic environments, the two species are found sharing the habitat (Rocha et al, 1995;Silva & Matsumura-Tundisi, 2005;Landa et al, 2007;Nogueira et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Some species respond to changes in the water quality, thus differences in the reproduction and development of the zooplankton are predictable (Duggan et al, 2001;Landa et al, 2007;Silva, 2011). The composition, richness and the diversity of these organisms in eutrophic environments is different when compared to oligotrophic ones.…”

Section: Introductionmentioning

confidence: 99%

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Relations among planktonic rotifers, cyclopoid copepods, and water quality in two Brazilian reservoirs

Perbiche‐Neves

Fileto

Laço-Portinho

et al. 2013

lajar

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ABSTRACT. Planktonic rotifers and cyclopoid copepods were studied in two reservoirs of different trophic states (eutrophic and oligo/mesoeutrophic) in the south of Brazil. During a year, monthly samplings were carried out in three stations in each reservoir. Species richness, frequency and abundance were used to find out useful and indicatives trends of water quality based on these organisms, reinforced by literature data. Species that showed higher differences between reservoirs were chosen. For Rotifera, richness, frequency and abundance of Brachionus were higher in the eutrophic reservoir, but Plationus patulus occurred only in the oligo/mesotrophic reservoir. For copepods, Tropocyclops prasinus dominated in the eutrophic reservoir, but Thermocyclops decipiens, T. minutus, T. inversus and Microcyclops anceps were dominants in the oligo/mesotrophic reservoir. In the canonical correspondence analysis, these species were indicators of the trophic state and were related with chlorophyll-a, total phytoplankton and total phosphorus. The use of these species can be efficient in the studied regions (subtropical/temperate), but comparing with other Brazilian reservoirs of tropical climate, the results could be different. Despite the dominance of T. decipiens over T. minutus, T. inversus has been widely used in Brazil as an indicator of eutrophic waters; in those cases of excessive eutrophication, other species, more rustic, commonly dominate. In the present study, Thermocyclops was dominant in the oligo/mesotrophic reservoir. The dominance of Brachionus for rotifers and Tropocyclops prasinus and Acanthocyclops robustus for copepods were indicative of eutrophic conditions. Keywords: abundance, bioindicators, diversity, evenness, species richness, Brazil.Relaciones entre los rotíferos, copépodos planctónicos ciclopoides y la calidad del agua en dos embalses brasileños RESUMEN. Se analizaron los rotíferos y copépodos planctónicos ciclopoides colectados en dos embalses de diferentes estados tróficos (eutróficos y oligo/mesoeutróficos) en el sur de Brasil. Durante un año, se efectuaron muestreos mensuales, en tres estaciones en cada embalse. La riqueza de especies, frecuencia y abundancia, se utilizó para determinar tendencias útiles e indicativas de la calidad del agua sobre la base de estos organismos, complementando con datos de la literatura. Se escogieron aquellas especies que presentaron las mayores diferencias. Para rotíferos, la riqueza, frecuencia y abundancia de Brachionus fueron más altas en el embalse eutrófico, Plationus patulus se detectó sólo en el embalse oligo/mesotrófico. Para los copépodos, Tropocyclops prasinus dominó en el embalse eutrófico, mientras que Thermocyclops decipiens, T. minutus, T. inversus y Microcyclops anceps dominaron en el embalse oligo/mesotrófico. En el análisis de correspondencia canónica, estas especies fueron indicadoras del estado trófico y se relacionaron con la clorofila-a, fitoplancton total y fósforo total. El uso de estas especies puede ser eficaz en las regiones estudiadas ...

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Zooplankton: The Significant Ecosystem Service Provider in Aquatic Environment

Bakhtiyar

Arafat

Andrabi

et al. 2020

Bioremediation and Biotechnology, Vol 3

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Thermocyclops decipiens (Kiefer, 1929) (Copepoda, Cyclopoida) as indicator of water quality in the State of Minas Gerais, Brazil

Abstract: ABSTRACT

Cited by 38 publications

References 11 publications

Copepod assemblage structure (Crustacea: Copepoda) along a longitudinal environmental gradient in a tropical river-floodplain system, Brazil

Copepod assemblage structure (Crustacea: Copepoda) along a longitudinal environmental gradient in a tropical river-floodplain system, Brazil

Relations among planktonic rotifers, cyclopoid copepods, and water quality in two Brazilian reservoirs

Zooplankton: The Significant Ecosystem Service Provider in Aquatic Environment

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