Observações ecológicas sôbre Brachionus plicatilis mueller em águas tropicais, salobras e mesosapróbicas (Rotatoria)

Oliveira, Lejeune de; Nascimento, Rubem do; Krau, Luiza; Miranda, Arnaldo

doi:10.1590/s0074-02761962000200001

Cited by 4 publications

(1 citation statement)

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“…Both the higher occurrence and density of this species are indicative of mesohaline conditions in coastal lagoons (BRANCO et al 2000(BRANCO et al , 2007. It should be noted that the presence of Brachionus plicatilis had been previously reported at Rodrigo de Freitas Lagoon in 1954(OLIVEIRA et al 1957) and as plankton dominant in 1957and 1958(OLIVEIRA et al 1962. Two other rotifer species found by the present study, with low frequency and abundance, were Keratella americana and K. choclearis, both commonly-occurring in several Brazilian freshwater ecosystems, being the latter considered a cosmopolitan species.…”

Section: Zooplankton Communitymentioning

confidence: 78%

Zooplankton of an urban coastal lagoon: composition and association with environmental factors and summer fish kill

Souza¹,

Branco²,

Domingos³

et al. 2011

Zoologia (Curitiba, Impr.)

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Zooplankton may be regarded as a sensitive tool for monitoring environmental variations in coastal lagoons due to their ability to immediately react to changes in the water column trophic features and salinity levels. As a coastal lagoon with a broad history of anthropic influence, Rodrigo de Freitas Lagoon (Rio de Janeiro, Brazil) is widely used for water sports and artisanal fishing. The present study aimed to expand the knowledge base about zooplankton in the Rodrigo de Freitas Lagoon by assessing the composition and time-spatial distribution of the major zooplankton groups. Samples were collected fortnightly from at four distinct sampling points August 2001 to July 2002. At each point, salinity, temperature, dissolved oxygen and water transparency were measured. During the study period, the lagoon behaved as an spatially homogeneous environment in what regards the abiotic variables. However, all these variables showed significant differences along the time, mainly related to seasonality (air temperature and rainy and dry periods). The zooplankton community showed low taxonomic richness, with the predominance of species commonly found in coastal lagoons, especially with mesohaline conditions, as well as those found in estuaries. An interesting fact was the rise in zooplankton abundance at all sampling points right after a fish kill event. Such increase was caused mainly by the Brachionus plicatilis O.F. Müller 1786 species. Thus, the zooplankton community was affected by physical and chemical factors, mainly by the dissolved oxygen decline event and variations in the influx of seawater into the lagoon. In addition, phytoplankton availability and fish predation pressure were suggested as important regulating factors of the zooplankton community

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Section: Zooplankton Communitymentioning

confidence: 78%

Zooplankton of an urban coastal lagoon: composition and association with environmental factors and summer fish kill

Souza¹,

Branco²,

Domingos³

et al. 2011

Zoologia (Curitiba, Impr.)

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show abstract

A synopsis of ecological information on the saline lake rotifer Brachionus plicatilis Müller 1786

Walker

1981

Salt Lakes

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13. A synopsis of ecological information on the saline lake rotifer Brachionus plicatilis M�ller 1786

Walker

1981

Hydrobiologia

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Observações ecológicas sôbre Brachionus plicatilis mueller em águas tropicais, salobras e mesosapróbicas (Rotatoria)

Cited by 4 publications

References 0 publications

Zooplankton of an urban coastal lagoon: composition and association with environmental factors and summer fish kill

Zooplankton of an urban coastal lagoon: composition and association with environmental factors and summer fish kill

A synopsis of ecological information on the saline lake rotifer Brachionus plicatilis Müller 1786

13. A synopsis of ecological information on the saline lake rotifer Brachionus plicatilis M�ller 1786

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