Additional list of species of aquatic macrophytes in the lower basin of the Xingu River

Abe, Donato Seiji; Sidagis-Galli, C.; Matsumura‐Tundisi, Takako; Tundisi, J. G.; Blanco, Francisco Peña; Faria, C R L

doi:10.1590/1519-6984.03714bm

Cited by 4 publications

(3 citation statements)

References 5 publications

(4 reference statements)

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“…Despite resulting in known impacts, such as loss of aquatic biodiversity, the emergence of potentially toxic cyanobacterial blooms, overgrowth of aquatic macrophytes, anoxia and fish mortality, increased eutrophication of Brazilian reservoirs has also, as an additional consequence, the increase of greenhouse gas emission that aggravates the global warming process [55,56].…”

Section: Brazilmentioning

confidence: 99%

Eutrophication and Phytoplankton: Some Generalities from Lakes and Reservoirs of the Americas

González¹,

Roldán²

2020

Microalgae - From Physiology to Application

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Eutrophication is one of the most widespread problems of inland waters in the world. In many countries from North to South America, eutrophication is due to several impacts resulting from the inefficient or nonexistent wastewater treatment; the agricultural expansion with inadequate soil uses and application of chemical fertilizers; the urbanization of watersheds, the increase of intensive husbandry of cattle, pigs, and chicken; the increase of aquaculture; the construction of reservoirs; and the destruction of natural ecosystems. Basically, the increase in the internal load of nitrogen and phosphorus in lakes and reservoirs produces an increase in the biological productivity of the water bodies. As consequence, phytoplankton community in freshwater systems is mainly dominated by cyanobacteria. Despite differences in continental climate regimes, this seems to be a regular pattern along the Americas, where there are various practices related to the use of lower and upper taxonomic groups of phytoplankton for the indication of the trophic level and water quality status of freshwater systems. As was reported in numerous studies in the Americas, increase in nutrient concentrations mainly due to rich in phosphorus cause larger phytoplankton biomass and predominance of cyanobacteria such as genera Microcystis, Anabaena, Planktothrix, Oscillatoria, and Cylindrospermopsis than ever before.

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Section: Brazilmentioning

confidence: 99%

Eutrophication and Phytoplankton: Some Generalities from Lakes and Reservoirs of the Americas

González¹,

Roldán²

2020

Microalgae - From Physiology to Application

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“…Life-forms were classified according to Esteves (2011), which divides macrophytes into seven groups: amphibious, emergent, epiphyte, floating-leaved, free-floating, free-submerged and rooted-submerged. They were also determined according to specialized literature (Pott & Pott 2000;Amaral et al 2008), and national macrophyte checklists containing life-form information (Moura Júnior et al 2013Pivari et al 2013;Abe et al 2015), along with field observations. Additionally, we calculated the frequency of occurrence of each species (the number of sites where a species was recorded) and recorded the type of waterbodies where they were found (stream, pond and lake).…”

Section: Biological Samplingmentioning

confidence: 99%

“…In accordance with other plant taxa, macrophyte diversity is highest in tropical areas, with most known diversity hotspots being found in the Neotropics (Chambers et al 2008;Murphy et al 2019). There are several publications about Amazonian macrophytes, including field identification guidebooks (Demarchi et al 2018;Piedade et al 2018), a book on anatomy and morphology (Guterres et al 2008), along with ecological (Piedade et al 2010;Bleich et al 2015;Lopes et al 2016), and floristic studies and checklists (Moura Junior et al 2015;Abe et al 2015;Costa et al 2016). But few assess macrophyte occurrence in human-altered habitats, especially in the Amazon's deforestation arc (but see Bleich et al 2015 for an ecological assessment in impacted areas).…”

Section: Introductionmentioning

confidence: 97%

Diversity of macrophytes in the Amazon deforestation arc: information on their distribution, life-forms and habits

et al. 2021

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The Amazon possesses the largest fluvial system on the planet, harboring a diverse biota. Still, many species remain undescribed, because of the Amazon’s immense scale and complexity, and because many habitats are now increasingly under pressure from anthropogenic activities. Macrophytes are important to physical and biological processes in aquatic ecosystems but remain poorly studied in Northern Brazil. The objective of this study was to provide a checklist of macrophyte species that occur in municipalities that form part of the Arc of Deforestation, Pará state, Brazil, bringing information on their habits and life-forms. We sampled 36 sites at three types of aquatic ecosystems (streams, ponds and lakes). In total, we recorded 50 species, 38 genera and 24 families. Most species were amphibious or emergent. Degraded streams have environmental characteristics similar to lentic habitats, which could provide more suitable habitats for macrophytes that otherwise would not occur in lotic habitats, thus explaining the higher diversity in these ecosystems. Macrophyte diversity in this region follows similar patterns to other Brazilian regions. This study contributes to the assessment of aquatic macrophytes in the Amazon, especially in more degraded regions, such as the Amazon deforestation arc.

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Aquatic Macrophytes in Southern Amazonia, Brazil: Richness, Endemism, and Comparative Floristics

et al. 2022

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Additional list of species of aquatic macrophytes in the lower basin of the Xingu River

Cited by 4 publications

References 5 publications

Eutrophication and Phytoplankton: Some Generalities from Lakes and Reservoirs of the Americas

Eutrophication and Phytoplankton: Some Generalities from Lakes and Reservoirs of the Americas

Diversity of macrophytes in the Amazon deforestation arc: information on their distribution, life-forms and habits

Aquatic Macrophytes in Southern Amazonia, Brazil: Richness, Endemism, and Comparative Floristics

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