Global diversity of aquatic macrophytes in freshwater

Chambers, Patricia A.; Lacoul, P.; Murphy, K. J.; Thomaz, Sidinei Magela

doi:10.1007/s10750-007-9154-6

Cited by 341 publications

(89 citation statements)

References 48 publications

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“…The wide diversity of macrophytes is related to their capacity to colonize aquatic ecosystems with significantly different physical-chemical characteristics (Chambers et al, 2007). The Neotropical region comprises the highest diversity of macrophytes encompassing up to 60% of all aquatic vascular plants (Chambers et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…The Neotropical region comprises the highest diversity of macrophytes encompassing up to 60% of all aquatic vascular plants (Chambers et al, 2007). In this region, the main environmental driving forces related to the macrophyte diversity, abundance and occurrence of species with different life forms include pH, alkalinity and nutrients (Kennedy et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Richness and distribution of aquatic macrophytes in a subtropical reservoir in São Paulo, Brazil

et al. 2017

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Aims: to evaluate the richness, biomass and distribution of aquatic macrophytes in a subtropical reservoir in the dry and rainy seasons. Methods: this study was carried out in the Itupararanga Reservoir, an important water source in São Paulo State, undergoing a continuous process of eutrophication. Samples of macrophytes were collected at 12 sampling sites in the summer and at 9 sampling sites in the winter in the Itupararanga Reservoir using the quadrat method (0.25 m 2 ). In the laboratory, the plants were washed to remove the coarse material and then were dried (60 °C) for biomass determination (gDW. m -2). All the species in the sampling sites in both periods were identified using the specific literature. In each sampling site, the water temperature, pH, electrical conductivity and dissolved oxygen were measured using a probe. The temporal and spatial differences were analyzed using t-test and a Cluster Analysis was performed. Results: The checklist showed sixteen species, 75% of them were emergent. From the 16 species, 15 were present in the summer and 10 in the winter. Eichhornia crassipes, Polygonum sp., and Urochloa sp. were the frequent taxa and had the highest biomass in both periods. The winter showed the highest biomass mainly due to the growth of free-floating species. The headwaters of the reservoir, the most eutrophic region, showed that the highest macrophyte richness and the sampling sites of this area were clustered in both the summer and winter. Conclusions: There was no significant spatial variation among the measured variables. E. crassipes, Salvinia sp. and Urochloa sp. showed a significant variation of biomass between two periods. Urochloa sp. is a nuisance species occurring in up to 60% of the sampling sites having implications for the whole catchment. Continuous macrophyte monitoring is important due to the increasing trophic status of this ecosystem.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Richness and distribution of aquatic macrophytes in a subtropical reservoir in São Paulo, Brazil

et al. 2017

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“…The high ability of macrophytes to explore distinct compartments (water column and sediment) within a aquatic systems is reflected by different life forms such as emergent, submersed and floating plants (Riemer, 1984), and for encompass diverse types of plants, macrophytes are included in different plant divisions: algae, bryophytes and vascular plants (Chambers et al, 2008). Thus, the macrophytes are key resources to habitat structuring, and in supporting the trophic chains and several chemical, physical and biological processes within aquatic ecosystems (Thomaz and Cunha, 2010).…”

Section: Introductionmentioning

confidence: 99%

Morphometry and retention time as forcing functions to establishment and maintenance of aquatic macrophytes in a tropical reservoir

2016

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Macrophytes may constitute an important resource for several chemical, physical and biological processes within aquatic ecosystems. This study considers that in tropical reservoirs with low retention time and with low values of shoreline development (D L ), the expansion and persistence of aquatic macrophytes are mainly reported to local conditions (e.g., hydrodynamic and wind exposure) rather than trophic status and depth of the euphotic zone. In this context, this study aimed at describing and comparing the incidence of aquatic macrophytes in a throughflowing, non-dendritic tropical reservoir. During February 2006 to November 2007, eight limnological surveys were performed quarterly within the Ourinhos Reservoir, and in the mouth areas of its tributaries. At the six sampling stations 30 variables were measured. The number of sites with plants varied between 21 and 38 and at the end of the 1 st year the total richness was found. The sampling survey outcome the recognition of 18 species of aquatic macrophytes; Cyperaceae (2 genera and 1 species), Pontederiaceae (3 species) and Onarograceae (3 genera) were the families with higher diversity. Seven species (Typha domingensis Pers., Myriophyllum aquaticum (Vell.) Verdec, Salvinia auriculata Aubl., Eichhornia azurea (Sw.) Kunth, Eleocharis sp1, Eichhornia crassipes (Mart.) Solms, Oxycaryum cubense (Poepp. & Kunth) Lye) always were present and were more frequent in the sites. The occurrence of emergent species predominated (45.9%), followed by submersed rooted (24.5%), free floating (19.5%), floating rooted (9.7%) and free submersed (0.3%). Although limnological variables and the distribution of macrophytes have discriminated the same sampling points, the stepwise multiple linear regressions did not pointed out strong correspondences (or coherence) among the most constant and distributed macrophyte species and the selected limnological variables, as well the trophic statuses. Seeing the low relationship among limnological variables and macrophytes distribution, in the case of Ourinhos Reservoir, the results pointed out that the water turbulence, low D L and wind exposure are the main driving forces that determine its aquatic plant distribution, life forms and species composition.Keywords: aquatic plants, biodiversity, population dynamic, drive functions, limnological constrains, Paranapanema River, Ourinhos HPP. Morfometria e tempo de residência como fatores determinantes noestabelecimento e manutenção de macrófitas aquáticas em um reservatório tropical ResumoAs macrófitas podem constituir um recurso importante para vários processos físicos, químicos e biológicos dos ecossistemas aquáticos. Esse estudo considera que nos reservatórios tropicais com baixo tempo de retenção e com baixos valores do grau de desenvolvimento das margens (D L ), a expansão e manutenção das macrófitas aquáticas são referidas principalmente às condições locais (e.g., hidrodinâmica e exposição ao vento), ao invés do estado trófico e da profundidade de zona eufótica. Nesse contexto, o pr...

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“…Studies of higher aquatic flora are an important part of ecological and biogeographic investigations in different regions of the world (Chambers et al, 2008;Bella et al, 2008;Chappuis et al, 2011;Figueroa et al, 2013;Davies and Stewart, 2013). It includes studies of macrophytes occupying higher levels of biocenosis as well as the researches of biodiversity in general (Murphy et al, 2003;Shi et al, 2010;Chappuis et al, 2012;Bosiacka and Pienkowski, 2012;Afanasyev et al, 2012;Bolpagni et al, 2013;Lukacs et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

The Study of the Higher Aquatic Flora of the Middle Don Basin within Rostov Region

Sereda¹,

Kapralova²,

Sereda³

et al. 2015

OnLine Journal of Biological Sciences

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Middle Don basin is recognized as a biodiversity hotspot, characterized by high diversity of vascular terrestrial plants. However, the significance of its freshwater biodiversity is not well understood now. In the given paper we present the results of the investigation of higher aquatic flora of basin streams and reservoirs within the Middle Don, Rostov region. 90 species of 53 genera and 32 families belonging to the four departments of higher plants were identified. The biodiversity of the Middle Don aquatic flora is discussed using the previously obtained herbal and biogeographic data and considering ecological, geographical and human factors. A systematic, ecological and geographical analysis of the regional aquatic flora has been conducted.

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Global diversity of aquatic macrophytes in freshwater

Cited by 341 publications

References 48 publications

Richness and distribution of aquatic macrophytes in a subtropical reservoir in São Paulo, Brazil

Richness and distribution of aquatic macrophytes in a subtropical reservoir in São Paulo, Brazil

Morphometry and retention time as forcing functions to establishment and maintenance of aquatic macrophytes in a tropical reservoir

The Study of the Higher Aquatic Flora of the Middle Don Basin within Rostov Region

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