Experimental evidence of the effect of nutrient enrichment on the zooplankton in a Brazilian coastal lagoon

Kozlowsky‐Suzuki, Betina; Bozelli, Reinaldo Luiz

doi:10.1590/s1519-69842002000500013

Cited by 17 publications

(11 citation statements)

References 17 publications

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“…Particularly for cladoceran populations, the influence of water quality is more pronounced, given the fact that these animals show a lower tolerance to environmental fluctuations than do other zooplankton groups (Goldman et al, 1979;Esteves and Sendacz, 1988;Elser et al, 1988;Conde-Porcuna et al, 2002;Kappes and Sinsch, 2005). Therefore, this explains, at least partially, the low densities of this group when compared to others recorded in similar dams (Crispim and Watanabe, 2003;Vieira et al, 2009).…”

Section: Discussionmentioning

confidence: 85%

Population dynamics of Moina minuta Hansen (1899), Ceriodaphnia cornuta Sars (1886), and Diaphanosoma spinulosum Herbst (1967) (Crustacea: Branchiopoda) in different nutrients (N and P) concentration ranges

Vieira¹,

Medeiros²,

Ribeiro³

et al. 2011

Acta

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Population dynamics of Moina minuta Hansen (1899), Ceriodaphnia cornuta Sars (1886), and Diaphanosoma spinulosum Herbst (1967) (Crustacea: Branchiopoda) in different nutrients (N and P) concentration ranges Dinâmica populacional de Moina minuta Hansen (1899), Ceriodaphnia cornuta Sars (1886) e Diaphanosoma spinulosum Herbst (1967) (Crustacea: Branchiopoda) em diferentes faixas de concentração de nutrientes (N e P)

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Section: Discussionmentioning

confidence: 85%

Population dynamics of Moina minuta Hansen (1899), Ceriodaphnia cornuta Sars (1886), and Diaphanosoma spinulosum Herbst (1967) (Crustacea: Branchiopoda) in different nutrients (N and P) concentration ranges

Vieira¹,

Medeiros²,

Ribeiro³

et al. 2011

Acta

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“…Some studies about antrophic impact upon zooplankton in Brazilian coastal lagoons were conducted in the state of Rio de Janeiro (e.g. ARCIFA et al 1994, ATTAYDE & BOZELLI 1998, BRANCO et al 2000, KOZLOWSKY-SUZUKI & BOZELLI 2002.…”

mentioning

confidence: 99%

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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“…Among the aquatic communities, zooplankton is important because it is the link between primary production (phytoplankton and bacterioplankton) to secondary consumers (e.g. fish and macroinvertebrates) and play a key role in cycling of organic materials in an aquatic ecosystem (Kozlowsky-Suzuki & Bozelli, 2002;Matsumura-Tundisi & Tundisi, 2005;Norlin et al, 2006). Studies has been performed in different time intervals, as the interannual (Lansac-Tôha et al, 2009), monthly (Ortega-Mayagoitia et al, 2000Fantin-Cruz et al, 2010), and/or weekly variation cycle (Chittapun et al, 2009), derived from the different sampling frequencies of the zooplankton in various types of wetlands (Bottrell et al, 1976;Guseska et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Factors that drive zooplankton diversity in Neo-Tropical Savannah shallow lakes

Padovesi-Fonseca

Rezende

2017

Acta Limnol. Bras.

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Abstract:Zooplankton is an important community in aquatic ecosystems due to its linkage between primary producers and secondary consumers also playing a key role in cycling of organic materials. Aim: Therefore, our objective was to evaluate the effects of physicochemical variables of the water on the diversity of zooplankton community in seven tropical shallow lakes of Brazilian savannah. Methods: Zooplankton samples were taken using a bucket and filtered 200 L by a 64 µm-mesh-plankton-net, and preserved for subsequent identification. Water temperature, dissolved oxygen, pH, electrical conductivity, turbidity, chlorophyll-a, ammonium, nitrate, nitrite, total phosphorus, and soluble reactive phosphorus were measured. Results: The turbidity (decreases the temperature, luminosity and the system productivity) and ammonium (increases the toxicity) values were the major factors responsible for structuring the zooplankton community. On the other hand, also nitrogen and phosphorus (increase the productivity) are limiting in savannah lentic systems for the zooplankton. The higher α diversity was positively associated with aquatic macrophytes (increase of niches and refuge), whereas lakes with geographic proximity increase the similarity in species composition, decreasing the β diversity. Conclusions: We conclude that the deterministic processes (niche theory), due to species have different ecological requirements, are different responses to environmental gradients and increase the diversity in heterogenic lentic systems.Keywords: α diversity; β diversity; nutrients; habitat heterogeneity; lentic systems.Resumo: O zooplâncton é uma comunidade importante nos ecossistemas aquáticos por ser o elo entre os produtores primários e os consumidores secundários, além de desempenharem um papel fundamental no ciclo de materiais orgânicos. Objetivo: Nosso objetivo foi avaliar os efeitos das variáveis físicas e químicas da água na diversidade de zooplâncton em sete lagoas rasas tropicais da savana brasileira. Métodos: As amostras de zooplâncton foram coletadas usando balde e filtrando 200 litros em rede de plâncton com abertura de 64 µm, e preservadas para posterior identificação. A temperatura da água, oxigênio dissolvido, pH, condutividade elétrica, turbidez, clorofila-a, amônio, nitrato, nitrito, fósforo total, fósforo reativo solúvel, cobertura de macrófita da lamina d'água foram obtidos. Resultados: A turbidez (ao diminui a temperatura, a luminosidade e a produtividade do sistema) e os valores de amônio (por aumenta a toxicidade) foram os principais fatores responsáveis pela estruturação do zooplâncton. Por outro lado, o nitrogênio e o fósforo (por aumentar a produtividade) são limitantes para o zooplâncton nos sistemas lênticos de savana. A maior diversidade α foi associada 2 Padovesi-Fonseca, C. and Rezende, R.S.

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Experimental evidence of the effect of nutrient enrichment on the zooplankton in a Brazilian coastal lagoon

Cited by 17 publications

References 17 publications

Population dynamics of Moina minuta Hansen (1899), Ceriodaphnia cornuta Sars (1886), and Diaphanosoma spinulosum Herbst (1967) (Crustacea: Branchiopoda) in different nutrients (N and P) concentration ranges

Population dynamics of Moina minuta Hansen (1899), Ceriodaphnia cornuta Sars (1886), and Diaphanosoma spinulosum Herbst (1967) (Crustacea: Branchiopoda) in different nutrients (N and P) concentration ranges

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

Factors that drive zooplankton diversity in Neo-Tropical Savannah shallow lakes

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