A review of systematics, distribution and ecology of tropical freshwater zooplankton

Dussart, B. H.; Fernando, C. H.; Matsumura‐Tundisi, Takako; Shiel, R. J.

doi:10.1007/bf00026594

Cited by 68 publications

(39 citation statements)

References 85 publications

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“…The greatest occurrence of species of the genus Lecane in tropical regions was also mentioned by Koste & Shiel (1983), Bozelli (1992), Bonecker et al (1994), Dussart et al (1984), Dabés (1995), Koste (1999), Sharma & Sharma (2001). This genus and Brachiouns were best represented in Southeast Asia (Segers, 2001).…”

Section: Discussionmentioning

confidence: 62%

Rotifers of the upper Paraná River floodplain: additions to the checklist

et al. 2003

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Rotifers present a high diversity in freshwater ecosystems. This study registered 11 genera and 42 species, new records for the Upper Paraná River floodplain. These results showed an increase in rotifer diversity in this ecosystem from 184 to 230 species. Among them some were registered only in the rivers and others in the lagoons. Thirty-seven species occurred in the littoral zone and 34 species in the pelagic; 3 species were registered only in the former zone and 2 species only in the latter. The lagoons presented the greatest richness, probably because of the greater stability, low current velocity, and the extensive aquatic macrophyte banks in the littoral zone of these environments as compared to those of the rivers. The highest number of species in the littoral habitats occurred due to the greater influence of shoreline vegetation, which allows greater habitat diversification. This fact contributed to the occurrence of non-planktonic species in the zooplankton samples.Key words: rotifers, floodplain, richness, new records, Paraná river. RESUMO Rotíferos da planície de inundação do alto rio Paraná: novas ocorrênciasOs rotíferos apresentam elevada diversidade em ambientes aquáticos continentais. Este estudo mostra novas ocorrências de 12 gêneros e 42 espécies desse grupo na planície de inundação do alto rio Paraná, o que incrementa o registro de 184 espécies para 230 espécies nesse ecossistema. Entre esses novos registros, algumas espécies ocorreram somente em lagoas e outras, apenas em rios. Foram encontradas 37 espécies na região litorânea e 34 na região pelágica dos ambientes estudados, dentre estas 3 espécies foram registradas apenas na primeira região e somente 2 na segunda região. As lagoas apresentaram os maiores valores de riqueza, provavelmente em razão da grande estabilidade, menor velocidade de corrente e presença de extensos bancos de macrófitas aquáticas. A presença de vegetação marginal permite grande diversificação de habitats, contribuindo para a ocorrência de um número expressivo de espécies na região litorânea. Esse fato contribuiu para a ocorrência de espécies não planctônicas no zooplâncton.Palavras-chave: rotífero, planície de inundação, riqueza, novas ocorrências, rio Paraná.

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Section: Discussionmentioning

confidence: 62%

Rotifers of the upper Paraná River floodplain: additions to the checklist

et al. 2003

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“…Freshwater zooplankton communities have been described in tropical and sub-tropical areas in numerous studies in South America (Matsumura-Tundisi & Tundisi, 1976;Bini et al, 1997;Starling, 2000;Fernando, 2002;Bonecker et al, 2007;Lansac-Tôha et al, 2008;Sousa et al, 2014), Africa (Uku & Mavuti, 1994;Mageed & Heikal, 2006;Fetahi et al, 2011) and Asia (Dussart et al, 1984). They are, in lentic zones, generally driven by environmental factors such as turbidity, nutrient and dissolved oxygen concentrations or phytoplankton density and diversity (Hart, 1990;Schulz & Sterner, 1999).…”

Section: Introductionmentioning

confidence: 99%

“…Dussart et al (1984) indicated that Rotifera, Cladocera and Copepods are composed of few species and that the Cyclopoida Copepod could represent high densities. They also specified that the common limnetic species can use the entire range of habitat types.…”

Section: Introductionmentioning

confidence: 99%

5 years of monitoring of zooplankton community dynamics in a newly impounded sub-tropical reservoir in Southeast Asia (Nam Theun 2, Lao PDR)

Descloux¹,

Cottet

2016

Hydroécol. Appl.

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5 years of monitoring of zooplankton community dynamics in a newly impounded sub-tropical reservoir in Southeast Asia (Nam Theun 2, Lao PDR) Abstract -The zooplanktonic community of the Nam Theun 2 Reservoir, newly impounded, located in Lao PDR was monitored from 2009 to 2013. Five sampling stations distributed on the surface of the reservoir were sampled on a monthly basis. Results were interpreted to assess the spatial and temporal variability of the communities and to identify environmental factors such as physical or water chemical parameters influencing communities. The zooplanktonic community was dominated by Copepods over the study period and was characterized by low densities and biomasses reflecting low productivity conditions. The spatial heterogeneity of the zooplanktonic community observed along a longitudinal gradient disappeared rapidly after the beginning of the operational phase in 2010 and tended to stabilize. The results also highlighted a seasonal variability explained by a phytoplankton-based food chain. Zooplankton communities were significantly and negatively driven by hydraulic factors, such as the mixing period, or water quality factors, such as water temperature or the depth of the oxycline. This zooplankton community must be evaluated in order to anticipate the food availability for zooplanktivorous fish before developing a fish management plan.Key words -sub-tropical reservoir, Southeast Asia, Copepods, spatial heterogeneity, mixing

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“…Furthermore, besides latitude (i.e. 23°N-23°S), altitude should be taken into account when considering tropical climates (Dussart et al 1984). Although these factors are acknowledged, it is neither feasible nor practical to discuss all possible freshwater ecosystems on a micro-scale.…”

Section: Introductionmentioning

confidence: 99%

Implications of differences between temperate and tropical freshwater ecosystems for the ecological risk assessment of pesticides

2009

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Despite considerable increased pesticide use over the past decades, little research has been done into their fate and effects in surface waters in tropical regions. In the present review, possible differences in response between temperate and tropical freshwaters to pesticide stress are discussed. Three underlying mechanisms for these differences are distinguished: (1) climate related parameters, (2) ecosystem sensitivity, and (3) agricultural practices. Pesticide dissipation rates and vulnerability of freshwaters appear not to be consistently higher or lower in tropical regions compared to their temperate counterparts. However, differences in fate and effects may occur for individual pesticides and taxa. Furthermore, intensive agricultural practices in tropical countries lead to a higher input of pesticides and spread of contamination over watersheds. Field studies in tropical farms on pesticide fate in the enclosed and surrounding waterways are recommended, which should ultimately lead to the development of surface water scenarios for tropical countries like developed by the Forum for the co-ordination of pesticide fate models and their use for temperate regions. Future tropical effect assessment studies should evaluate whether specific tropical taxa, not represented by the current standard test species in use, are at risk. If so, tropical model ecosystem studies evaluating pesticide concentration ranges need to be conducted to validate whether selected surrogate indigenous test species are representative for local tropical freshwater ecosystems.

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A review of systematics, distribution and ecology of tropical freshwater zooplankton

Cited by 68 publications

References 85 publications

Rotifers of the upper Paraná River floodplain: additions to the checklist

Rotifers of the upper Paraná River floodplain: additions to the checklist

5 years of monitoring of zooplankton community dynamics in a newly impounded sub-tropical reservoir in Southeast Asia (Nam Theun 2, Lao PDR)

Implications of differences between temperate and tropical freshwater ecosystems for the ecological risk assessment of pesticides

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