Microalgas Do Estuário Da Lagoa Dos Patos: Interação Entre O Sedimento E a Coluna d'ÁGUA

Bergesch, Marli; Odebrecht, Clarisse; Abreu, Paulo César Oliveira Vergne de

doi:10.4257/oeco.1995.0101.17

Cited by 12 publications

(7 citation statements)

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“…Fig. 3A) and also as previously observed (Bergesch et al, 1995;Abreu et al, 2010). The most common pattern, however, was the measurement of high chlorophyll a values in meso-and oligohaline water leaving the estuary after a longer period of saltwater inflow.…”

Section: Discussionsupporting

confidence: 56%

“…Highest chlorophyll a values measured in oligo-and mesohaline waters in the PLE are in general dominated by euryhaline species originating from the coastal region such as the diatoms Skeletonema costatum, Chaetoceros, Thalassiosira, Ceratulina, Rhizosolenia, Pseudosolenia, which were seeded in the estuarine region with saltwater inflow (Abreu et al, 1994a;Fujita and Odebrecht, 2007;Bergesch et al, 2009;Haraguchi et al, in this issue). These fastgrowing species experience favourable growth conditions in the estuary, exceeding possible losses caused by grazing and sedimentation.…”

Section: Discussionmentioning

confidence: 92%

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Retention time generates short-term phytoplankton blooms in a shallow microtidal subtropical estuary

Odebrecht

Abreu

Carstensen

2015

Estuarine, Coastal and Shelf Science

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Section: Discussionsupporting

confidence: 56%

Section: Discussionmentioning

confidence: 92%

Retention time generates short-term phytoplankton blooms in a shallow microtidal subtropical estuary

Odebrecht

Abreu

Carstensen

2015

Estuarine, Coastal and Shelf Science

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“…(RICARD, 1987;HASLE;SYVERTSEN, 1997). It is important to state that benthic microalgae are important primary producers in shallow aquatic ecosystems and that their production exceeds that of planktonic microalgae in certain periods (BERGESCH; ODEBRECHT; ABREU, 1995;BRANDINI;FERNANDES, 1996). The relevance of a taxon in the study area was determined by its high contribution to sample similarity in each season.…”

Section: Discussionmentioning

confidence: 99%

Phytoplankton community structure in one sector of Guanabara Bay (RJ, Brazil) during 2011 and 2012

et al. 2015

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This study analyzed the temporal variability of phytoplankton assemblages in the surface waters of Guanabara Bay (RJ, Brazil), at six stations in front of Icaraí Inlet from April/2011 to April/2012. Our results highlight the great contribution of diatoms, dinoflagellates and cyanobacteria, represented by 111 taxa typical of estuarine and coastal areas. The coexistence of benthic and planktonic species suggests considerable hydrodinamism in these waters. All variables were homogeneous (p > 0.05) between the stations, but differed between sampling periods. On average, phytoplankton abundance (107 cells.L-1) was higher than that of other estuaries and its temporal behavior was closely correlated (p < 0.01) with diatoms and cyanobacteria. The richness distribution pattern (7 to 27 taxa) was closely correlated (p < 0.01) with dinoflagellates and diatoms. Ninety per cent of all samples presented a low diversity index (< 2.0 bits.cell-1), which indicated the unstable balance of the system, typical of environments subjected to eutrophication. The population structure analysis revealed that 10% of all taxa were resident, 12% visitors and 78% accidental, suggesting the influence of continental and oceanic water influxes. Between the "typical" taxa, the most common were the cyanobacteria of the order Oscillatoriales, the diatoms Ceratoneis closterium (=Cylindrotheca closterium) and Leptocylindrus minimus and the dinoflagellate Prorocentrum triestinum.

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“…The highest phytoplankton richness, specific diversity and silicate value observed in winter, probably resulted from this suspension. The presence of benthic microalgae in the plankton was also observed in other shallow lakes (Cardoso and Motta Marques 2003, 2004a, Colak Sabanci 2014, Bergesch et al 1995, Bonilla et al 2005, Brito 2012, Ramdani et al 2009, Padisák 1993.…”

Section: Discussionmentioning

confidence: 62%

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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Microalgas Do Estuário Da Lagoa Dos Patos: Interação Entre O Sedimento E a Coluna d'ÁGUA

Cited by 12 publications

References 0 publications

Retention time generates short-term phytoplankton blooms in a shallow microtidal subtropical estuary

Retention time generates short-term phytoplankton blooms in a shallow microtidal subtropical estuary

Phytoplankton community structure in one sector of Guanabara Bay (RJ, Brazil) during 2011 and 2012

Plankton community dynamics in a subtropical lagoonal system and related factors

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