Laboratory demonstration of morphological alterations in Ceriodaphnia cornuta Sars (1885) fa rigaudi induced by Chaoborus brasiliensis Theobald (1901)

Rietzler, Arnola C.; Roche, Kennedy F.; Ribeiro, M. M.

doi:10.1590/s1519-69842008000200032

Cited by 12 publications

(6 citation statements)

References 6 publications

(6 reference statements)

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“…The species found in Brazil are distributed in seven families, and Daphnidae is numerically abundant. Thus, many studies have been done on taxonomy, abundance, morphology, distribution of Daphnidae and some aspects of their biology and ecology (Matsumura-Tundisi 1984, Rocha & Matsumura-Tundisi 1990, Fryer 1991, Fonseca & Rocha 2004, Rietzler et al 2008.…”

Section: Introductionmentioning

confidence: 99%

Life cycle of Scapholeberis armata freyi Dumont & Pensaert, 1983 (Cladocera, Daphnidae)

2012

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Knowledge of the life cycle of zooplankton species can provide information for a better understanding of the role of each species in the community and basic data for secondary production investigations. In this study, some life-cycle traits were measured for Scapholeberis armata freyi Dumont & Pensaert, 1983 (Cladocera, Daphnidae), maintained under controlled conditions in laboratory cultures. Experiments were carried out in incubators at a temperature of 23.0 ºC, photoperiod of 12 hours light/dark, and food supply (algal suspension of the chlorophycean Pseudokirchneriela subcapitata at 10(5) cells.mL-1 and mixed suspension of yeast, and fish ration added per organism, at equal proportions) that were kept constant. Observations were made once or twice a day to record individual growth, age and size of primipara, as well as fecundity and longevity. S. armata freyi achieved a maximum size of 827 µm, while the primiparous instar measured 542 µm on average, at an age of 5.86 days. The mean fecundity was 8 eggs.female-1 and the mean of total number of eggs produced by a female was 47.58. Embryonic development time was 1.9 days and the maximum longevity found was 31 days. In this study, the life cycle parameters of S. armata freyi presented are close to those found in other species of Daphnidae, under the same culture conditions of temperature and photoperiod. However, the longevity was greater than other species that received algae as food only. The quality and quantity of food are factors that control secondary production in aquatic ecosystems and an increase of food availability increases longevity and egg production. Thus the greater longevity and egg production observed for S. armata freyi can influence its secondary production.

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Section: Introductionmentioning

confidence: 99%

Life cycle of Scapholeberis armata freyi Dumont & Pensaert, 1983 (Cladocera, Daphnidae)

2012

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“…De acordo com essa numeração, na Tabela II foram especificados os corpos d'água estudados por cada autor e respectivas referências das publicações, com coordenadas geográficas dos pontos estudados sempre que possível. Na Tabela I foram representadas as espécies com a nomenclatura original encontrada nas respectivas publicações, e, em alguns casos, a atualização taxonômica ou correção da nomenclatura e sinonímias, sempre que necessário, de acordo com dados disponíveis em <http://cladocera.wordpress.com/>, além de consultas às publicações sobre alterações morfológicas em Ceriodaphnia cornuta devido à presença de predadores no ambiente (Rietzler et al, 2008) e atualizações taxonômicas no gênero Bosmina (Elmoor et al, 2004). Para cálculo do número de espécies, foi considerada a nomenclatura válida para as espécies brasileiras.…”

Section: Resultsunclassified

Checklist de Cladocera (Crustacea, Branchiopoda) do Estado de Mato Grosso do Sul, Brasil

Zanata

Güntzel

Rodrigues

et al. 2017

Iheringia, Sér. Zool.

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ABSTRACT. Checklist of the Cladocera (Crustacea, Branchiopoda) from state of Mato Grosso do Sul, Brazil. The publications of the study of the community Cladocera (Branchiopoda) from state of Mato Grosso do Sul have been analyzed to prepare a list occurrence of species in diff erent aquatic environments from this state. We observed the occurrence of 101 species belonging to seven families (Sididae, Bosminidae, Daphiniidae, Moinidae, Ilyocryptidae, Macrothricidae and Chydoridae). Chydoridae was dominant in the community of 53 species recorded, representing 52.47% of the community. Among Chydoridae, Aloninae is most numerous, with 32 species richness, while Chydorinae is represented by 21 species. According to the survey of the occurrence of species of Macrothricidae, Ilyocryptidae Chydoridae and can be considered that the community Cladocera of Mato Grosso do Sul is composed mostly by non-planktonic organisms. Daphniidae, Moinidae, Bosminidae and Sididae together represent 33.67% of the community. To calculate the richness was necessary to consider the taxonomic updates occurring after the publications considered in this study, with both species list with the original nomenclature of publications considered in the checklist as a species list updated.KEYWORDS. Biodiversity, freshwater zooplankton, Alto Paraguai river, Paraná river basin, Biota-MS Program.RESUMO. As publicações referentes ao estudo da comunidade de Cladocera (Branchiopoda) do estado de Mato Grosso do Sul, até a presente data, foram analisadas com o objetivo se preparar uma lista de ocorrência das espécies nos diversos ambientes aquáticos do estado. A partir desse estudo, observou-se a ocorrência de 101 espécies pertencentes a sete famílias (Sididae, Bosminidae, Daphiniidae, Moinidae, Ilyocryptidae, Macrothricidae e Chydoridae). Chydoridae foi considerada dominante na comunidade com ocorrência de 53 espécies, o que representa 52,47% da comunidade. Dentre os Chydoridae, Aloninae é mais numerosa, com riqueza de 32 espécies, enquanto que Chydorinae está representada por 21 espécies. De acordo com o levantamento da ocorrência de espécies de Macrothricidae, Ilyocryptidae e Chydoridae pode se considerar que a comunidade de Cladocera do Mato Grosso do Sul é composta em sua grande maioria por organismos de hábitos não planctônicos. Daphniidae, Moinidae, Bosminidae e Sididae representam juntas 33,67% da comunidade. Para cálculo da riqueza foi necessário considerar as atualizações taxonômicas ocorridas posteriormente às publicações consideradas nesse estudo, apresentando tanto a lista das espécies com a nomenclatura original das publicações consideradas no checklist quanto a lista de espécies atualizada.PALAVRAS-CHAVE. Biodiversidade, zooplâncton de água doce, Bacia Alto Paraguai, Bacia do Paraná, Programa Biota-MS.

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“…The appearance of spines in Ceriodaphnia cornuta forms may be also related to the presence of predators. Rietzler et al (2008) observed that the presence of Chaoborus sp. influenced the appearance of spines in this species.…”

Section: Discussionmentioning

confidence: 99%

Diel vertical migration of Cladocera in a compartment of a tropical reservoir

Silva

Santos-Wisniewski

2018

Acta Limnol. Bras.

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Aim This study seeks to analyze the vertical migration pattern of Cladocera species as related with the physical and chemical parameters of the water. Methods Samplings were carried out at 3-h intervals for 24 h in January 15 on the Sapucaí River compartment of Furnas reservoir, Minas Gerais State, Brazil. These samples were taken at five depths, from the surface to the near-bottom layer (0, 2, 4, 6, 8, and 9 m) totalizing 54 samplings for each limnological variable (temperature, pH, dissolved oxygen, electrical conductivity, chlorophyll-a content, Index of Trophic State, water transparency and Cladocera populations abundance). The samplings were performed at the limnetic region at a point with total depth of 9 meters. Results Water column thermal and chemical stratifications and thermocline occurrences were registered in the middle of the day. Among the 14 Cladocera species, only Ceriodaphnia cornuta and C. silvestrii displayed a significant migration pattern, which was mainly related to chlorophyll-a and dissolved oxygen concentrations. Diaphanosoma birgei and D. spinulosum are found at high densities near the surface and low ones in depth. The migration of Diaphanosoma was directly related to the concentration of chlorophyll a and pH, thus acting as a limiting factor. Feeding at high temperatures in the surface layer and assimilating at lower ones in depth, usually confer metabolic advantages to the vertically migratory species. Conclusions In this study, a well-defined pattern of vertical migration was found for two Cladocera species and its possible causes were hypothesized. To the species with less locomotory capacity, thermal and chemical stratifications can act as barriers to migration and distribution through the water column. This pattern may probably be found for zooplankton species in other compartments of Furnas reservoir, with similar physical and chemical properties.

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Laboratory demonstration of morphological alterations in Ceriodaphnia cornuta Sars (1885) fa rigaudi induced by Chaoborus brasiliensis Theobald (1901)

Cited by 12 publications

References 6 publications

Life cycle of Scapholeberis armata freyi Dumont & Pensaert, 1983 (Cladocera, Daphnidae)

Life cycle of Scapholeberis armata freyi Dumont & Pensaert, 1983 (Cladocera, Daphnidae)

Checklist de Cladocera (Crustacea, Branchiopoda) do Estado de Mato Grosso do Sul, Brasil

Diel vertical migration of Cladocera in a compartment of a tropical reservoir

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