Acartia tonsa production in the Patos Lagoon estuary, Brazil

Muxagata, Erik; Amaral, W. J. A.; Barbosa, Carla Neme

doi:10.1093/icesjms/fsr166

Cited by 34 publications

(19 citation statements)

References 30 publications

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“…That could be expected because of the greater availability of food. The incidence and abundance of zooplankton species in Patos Lagoon are mainly determined by seasonal variations of salinity, temperature, wind direction and intensity, freshwater discharge and food supply (MCLAREN; CORKETT, 1981;MONTÚ et al, 1998;MUXAGATA et al, 2012). However, it was not possible to identify the relation between the increased zooplankton abundance in sample 30 PD and the tested parameters that could affect these organisms.…”

Section: Discussionmentioning

confidence: 99%

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

2017

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Bauer et al.: Plankton and water quality in a shrimp farm 495Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regenerationWater quality, chlorophyll a, phytoplankton, proto and mezo-zooplankton abundance were spatiotemporally evaluated in an estuary receiving effluents from a Pacific white shrimp Litopenaeus vannamei farm in Patos Lagoon estuary, Southern Brazil. Samples were taken before (BD) and; 1 day (1 PD) 5 days (5 PD), 10 days (10 PD), 20 days (20 PD) and 30 days (30 PD) after the effluents discharge. Some water quality parameters were affected by the effluents discharge; however, these changes were restricted to a distance of 20 m from the effluent discharge channel for a period of 5 days. The microbial community was dominated by chlorophyceae, followed by diatoms, cyanobacteria and ciliates. There was an increase in the abundance of different groups on the 1 PD sampling compared to BD. The zooplankton abundance was low in practically all sites, except for 30 PD sampling. The meso-zooplanktonic organisms were represented by copepods, mostly Acartia tonsa. Despite some effects on water quality and phytoplankton and protozooplankton abundance until 5 PD sampling, these alterations dissipated in a short period of time. We conclude that the environment quickly assimilated the effluents discharge, and the water quality parameters remained within the limits stipulated by standard guidelines. Parâmetros de qualidade da água, composição e abundância do fitoplâncton e do proto e meso-zooplâncton foram avaliadas espaço-temporalmente no estuário receptor de efluentes de uma fazenda produtora de camarão Litopenaeus vannamei na Lagoa dos Patos, Brasil. As amostras foram tomadas em sete pontos antes (BD) e; 1 dia (1 PD), 5 dias (5 PD), 10 dias (10 PD), 20 dias (20 PD) e 30 dias (30 PD) após a descarga dos efluentes. Alguns dos parâmetros de qualidade de água sofreram alterações devido ao lançamento dos efluentes, restritos a 20 m de distância do canal de descarga dos efluentes e por um período máximo de 5 dias. A comunidade microbiana sofreu variação em 1 PD comparativamente a BD. A abundância zooplanctônica foi baixa na maioria das amostras, com exceção de alguns pontos em 30 PD. Os copépodos foram o único grupo encontrado no meso-zooplâncton, na sua grande maioria a espécie Acartia tonsa. Apesar de modificações em alguns parâmetros avaliados nos primeiros dias após o lançamento dos efluentes, essas alterações foram assimiladas em um curto período. Os parâmetros de qualidade de água mantiveram-se dentro dos limites estipulados pela legislação e o ambiente assimilou de maneira rápida as mudanças ocorridas. AbstrAct

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Section: Discussionmentioning

confidence: 99%

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

2017

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“…However, the copepods were the most diverse, with just over half (55%) of the total number of taxa (38). A predominance of copepods is typical of the mesozooplankton of estuarine environments (Villate and Orive, 1981;Turner, 2004), except during periods when certain benthic and nektonic organisms, such as decapods and mollusks, breed and produce large numbers of larvae (Osore et al, 2004;Leite et al, 2009 (Bradford-Grieve et al, 1999), and are common in estuaries from Brazil Muxagata et al, 2012) and worldwide (Maruthanayagam and Subramanian, 2000;Brugnoli-Olivera et al, 2004).…”

Section: Resultsmentioning

confidence: 99%

Zooplankton spatial and temporal distribution in an equatorial estuary (Amazon littoral, Brazil)

Palma

Costa

Magalhães

et al. 2013

Journal of Coastal Research

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“…However, cladocerans (Chydorus sphaericus) never dominated the community at low salinities, while rotifers and protists did. Acartia tonsa dominated the zooplankton community in areas with saltwater intrusion, such as the central basin of Vistula lagoon (Paturej et al 2012) and the estuary of Patos lagoon (Muxagata et al 2012).…”

Section: Discussionmentioning

confidence: 99%

Plankton community dynamics in a subtropical lagoonal system and related factors

Donadel

Cardoso

Torgan

2016

An. Acad. Bras. Ciênc.

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Changes of the plankton community in a shallow, subtropical lagoonal system and its relation to environmental conditions were investigated during an annual cycle to provide information on its spatial and seasonal variation pattern. The study carried out at four sites (three in the Peixe lagoon and one in the Ruivo lagoon), which are located in the Lagoa do Peixe National Park, southern Brazil. The system has a temporary connection to the Atlantic Ocean by a narrow channel. The phytoplankton density was higher in the Peixe lagoon whereas the specifi c richness was higher in the Ruivo lagoon which is also a site with the lower salinity. The phytoplankton biomass near the channel showed seasonal variation with the highest value in fall and lowest in winter. Zooplankton richness was inversely correlated with salinity, and had the highest values in the Ruivo lagoon. Ordination analysis indicated seasonal and spatial patterns in plankton community in this lagoonal system, related to variation in salinity. In addition, the wind action and precipitation were important factors on the spatial and seasonal salinity changes in the lagoon with direct infl uence on the plankton community dynamics.

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Acartia tonsa production in the Patos Lagoon estuary, Brazil

Cited by 34 publications

References 30 publications

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

Plankton and water quality variability in an estuary before and after the shrimp farming effluents: possible impacts and regeneration

Zooplankton spatial and temporal distribution in an equatorial estuary (Amazon littoral, Brazil)

Plankton community dynamics in a subtropical lagoonal system and related factors

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