scholarly journals MACRÓFITAS AQUÁTICAS DA COLEÇÃO DO HERBÁRIO DO MARANHÃO (MAR) = AQUATIC MACROPHYTES OF THE COLLECTION OF HERBARIUM OF MARANHÃO (MAR)

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Marlla Maria Barbosa Arouche ◽  
Luann Brendo da Silva Costa ◽  
Thauana Oliveira Rabelo ◽  
Regis Catarino da Hora ◽  
Arnildo Pott ◽  
...  
Keyword(s):  
Aquatic Ecosystems ◽  
Aquatic Macrophytes ◽  
Basic Research ◽  
Life Forms ◽  
Sampling Effort ◽  
Water Network ◽  
Collection Site ◽  
Macrophyte Species ◽  
Floating Plants ◽  
Conservation Of Biodiversity

Os estudos de macrófitas aquáticas têm contribuído para compreensão estrutural e funcional deste grupo de plantas nos ambientes em questão. Mesmo com a importância dessas pesquisas para a conservação da biodiversidade e dos recursos hídricos, os estudos básicos sobre macrófitas ainda são insuficientes diante da dimensão e do grande número de ecossistemas aquáticos no Brasil. Quando falamos do Maranhão esses estudos são ainda mais escassos tendo em vista que a nossa rede hídrica é composta por 12 bacias hidrográficas que corresponde a aproximadamente 60% do território do Estado. Com intuito de atender essa demanda e conhecer a diversidade de espécies e suas distribuições nos ecossistemas maranhenses, foi feito um levantamento das macrófitas aquáticas registradas no acervo do Herbário Maranhão (MAR), complementado com os dados do SpeciesLink. A lista gerada segue a proposta de classificação do APG IV (2016) incluindo informações como: voucher, local de coleta e formas de vida. Foi listado um total de 40 espécies, distribuídas em 28 gêneros e 18 famílias. As famílias mais numerosas foram Cyperaceae e Onagraceae (5 espécies cada), Araceae e Pontederiaceae (4 spp.) e Alismataceae, Lentibulariaceae e Poaceae (3 spp.). Em relação às formas biológicas, 35% são plantas emergentes, 25% anfíbias; 20% flutuantes livres e 20% flutuantes fixas. O material foi registrado em 19 municípios do Estado e entre as primeiras coletas e outros registros houve um hiato de coleta por 20 anos, o que reforça a falta de dados para a área e a necessidade de maior esforço amostral para o Estado do Maranhão.ABSTRACTStudies of aquatic macrophytes have contributed to the conservation of biodiversity and water resources. However, basic research on macrophytes are still insufficient given the size and large number of aquatic ecosystems in Brazil. Regarding Maranhão, such studies are even scarcer in view of our water network composed of 12 hydrographic basins that correspond to approximately 60% of the territory of Maranhão State. Thus, the objective of the study was to know the diversity and distribution of macrophyte species in the ecosystems of Maranhão registered at the Herbarium in Maranhão (MAR). For this, surveys were carried out in the collection of Herbarium MAR complemented with data from the SpeciesLink databank, and included information such as voucher, collection site and life forms. The survey included 40 species were listed, distributed into 28 genera and 18 families. The most numerous families were Cyperaceae and Onagraceae (5 species, each),Araceae and Pontederiaceae (4 species, each), and Alismataceae, Lentibulariaceae and Poaceae (3 species, each). Regarding biological forms, 35% are emergent, 25% amphibious; 20% free floatingand 20% rooted floating plants. The material was registered in 19 municipalities of the Maranhão State. Among the first collections and recent records there was a collection gap for 20 years, that highlights the need for more sampling effort for Maranhão state. 

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

Rodriguésia ◽  
2021 ◽  
Vol 72 ◽  
Author(s):  
Ana Luísa Biondi Fares ◽  
Raimundo Luiz Morais de Sousa ◽  
Ely Simone Cajueiro Gurgel ◽  
André dos Santos Bragança Gil ◽  
Carlos Alberto Santos da Silva ◽  
...  
Keyword(s):  
Aquatic Ecosystems ◽  
Aquatic Macrophytes ◽  
Anthropogenic Activities ◽  
Life Forms ◽  
Biological Processes ◽  
Macrophyte Species ◽  
Form Part ◽  
Arc Of Deforestation ◽  
Northern Brazil ◽  
Suitable Habitats

Abstract 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.

scholarly journals Aquatic macrophytes of Northeastern Brazil: checklist, richness, distribution and life forms [with erratum]

Check List ◽  
2013 ◽  
Vol 9 (2) ◽  
pp. 298 ◽  
Author(s):  
Edson Gomes de Moura-Júnior ◽  
Liliane Ferreira Lima ◽  
Simone Santos Lira Silva ◽  
Raíssa Maria Sampaio de Paiva ◽  
Fernando Alves Ferreira ◽  
...  
Keyword(s):  
Aquatic Ecosystems ◽  
Aquatic Macrophytes ◽  
Great Influence ◽  
Rio Grande ◽  
Life Forms ◽  
Northeastern Brazil ◽  
Structure And Dynamics ◽  
Aquatic Flora ◽  
Bibliographic Search ◽  
High Species Richness

Aquatic plants have great influence on the structure and dynamics of aquatic ecosystems, thereby contributing considerably to biodiversity. In Brazil, knowledge of the biodiversity of aquatic macroflora is still limited. We present a checklist of aquatic macrophytes occurring in the northeastern region of Brazil through a bibliographic search. We recorded a total of 412 species, 217 genera and 72 families. The most representative families were Cyperaceae (70 species), Poaceae (38), Fabaceae (27) and Asteraceae (20). The States with highest number of species were Pernambuco (370), Bahia (360), Ceará (267) and Paraíba (261). The best-represented life forms were amphibious (193 species) and emergent (100). The aquatic flora of Northeastern Brazil exhibits high species richness; however, there is a scarcity of records of aquatic macrophytes for the States of Alagoas, Rio Grande do Norte, Maranhão, Sergipe and Piauí.

scholarly journals The aquatic macrophyte flora of the Pandeiros River Wildlife Sanctuary, Minas Gerais, Brazil

Check List ◽  
2013 ◽  
Vol 9 (2) ◽  
pp. 415 ◽  
Author(s):  
Marco Otávio Dias Pivari ◽  
Pedro Lage Viana ◽  
Felipe Sá Fortes Leite
Keyword(s):  
Aquatic Macrophytes ◽  
Aquatic Macrophyte ◽  
Life Forms ◽  
Aquatic Environments ◽  
Oxbow Lakes ◽  
Wildlife Sanctuary ◽  
Hydrographic Basin ◽  
Left Margin ◽  
High Diversity ◽  
Conservation Of Biodiversity

The São Francisco River forms one of the main Brazilian hydrographic basins of ca. 645,000 km2. The Pandeiros River is a tributary situated on the left margin of the São Francisco and is considered a strategic component for conservation of biodiversity of that hydrographic basin. An inventory of the aquatic macrophyte flora of the Pandeiros River Wildlife Sanctuary was carried out, using collections of botanical samples and examination of specimens at the BHCB Herbarium. Aquatic environments in the study area were classified as follows: the Pandeiros riverbed, floodplains, oxbow lakes, and swamps. A total of 101 species was inventoried, distributed in 37 families (1 charophytes, 1 liverworts, 3 ferns and 32 angiosperms) and 71 genera. The species were classified into seven life forms, with the amphibian and rafted plants the more representative. The area shows a high diversity in its aquatic macrophytes and has an important role in the conservation of biodiversity of the region.

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

2021 ◽  
Author(s):  
Milton Omar Cordova Neyra ◽  
Josiane Fernandes Keffer ◽  
Dienefe Rafaela Giacoppini ◽  
Vali Joana Pott ◽  
Arnildo Pott ◽  
...  
Keyword(s):  
Aquatic Macrophytes ◽  
New Records ◽  
Aquatic Macrophyte ◽  
Taxonomic Diversity ◽  
Life Forms ◽  
Species List ◽  
Macrophyte Species ◽  
Northern Regions ◽  
Northern Brazil ◽  
Southern Amazonia

Abstract Southern Amazonia potentially harbors a wide diversity of aquatic macrophyte species because of its diverse wetland habitats and location in the Amazon-Cerrado transition zone, the two largest biogeographic domains in South America. We inventoried the taxonomic diversity of aquatic macrophytes in the region, including endemism, habitats, species life forms, and floristic comparisons with other Brazilian regions. We found a high number of species of aquatic macrophytes for the southern Amazon region, comparable to extensive inventories in larger areas in southern, northeastern, and northern regions of Brazil. We recorded 688 species of aquatic macrophytes in 299 genera and 95 families, of which 66 species are new records, 89 endemic, and 5 exclusive to Brazilian Amazonia. We present new records of aquatic macrophyte species, together with their degree of endemism and occurrence restricted to the region. The macrophyte species list of southern Amazonia showed 60% similarity to inventories in the Xingu basin and in northern Brazil. This high diversity of aquatic macrophytes in the Southern Amazonia, with endemic species and others with restricted ranges, emphasizes the importance of conserving wetlands and vegetation types where they grow in the region.

scholarly journals Effects of detritus chemical composition on the anaerobic mineralization of Salvinia auriculata and Utricularia breviscapa

2015 ◽  
Vol 27 (2) ◽  
pp. 202-212
Author(s):  
Marcela Bianchessi da Cunha Santino ◽  
Irineu Bianchini Júnior
Keyword(s):  
Organic Carbon ◽  
Anaerobic Degradation ◽  
Aquatic Macrophytes ◽  
Life Forms ◽  
Mass Balances ◽  
Anaerobic Conditions ◽  
Gas Formation ◽  
Set Up ◽  
Loss Experiment ◽  
Carbon Particulate

Aim: This study was conducted to evaluate the effect of the detritus composition on the anaerobic mineralization of two species of aquatic macrophytes with different life forms (submerged and free floating). The hypothesis that guided this study was that the carbon concentration derived from detritus hydrosoluble fraction can act as a facilitating factor on its degradation.Material and MethodsIncubations containing detritus and water sample from the Óleo Lagoon (21° 33’ to 21° 37’ S and 47° to 47° 45’ to 51’ W) for each specie (Salvinia auriculata and Utricularia breviscapa) were set-up with: (i) integral detritus (sample of dried plant), (ii) lignocellulosic matrix (particulate organic matter (POM) remaining from leachate extraction) and (iii) leachate. The incubations were kept in the dark under anaerobic conditions. Daily rates of gas formation were evaluated and after 138 days, the incubations were fractioned in dissolved and particulate fractions and the mass balances were performed. A mass loss experiment (180 days) was performed for assessment of the dissolved organic carbon, particulate organic carbon and mineralized carbon variations.ResultsRegardless of the type of detritus (S. auriculata and U. breviscapa), C-mineralization was faster and higher in the DOC incubations (ca. 85%). For U. breviscapa the POM mineralization was slower than the corresponding integral detritus and S. auriculata mineralization was slower than U. breviscapa.ConclusionsThe composition of the detritus (i.e. macrophyte type, presence and proportion of leachate) interfered synergistically in anaerobic degradation of these plants. The leachate tends to act as a facilitator, supporting the growth of microorganisms and intensifying mineralization.

Cladocera (Crustacea: Branchiopoda) from the state of Mato Grosso, Brazil

2020 ◽  
Vol 56 ◽  
pp. 7
Author(s):  
Maiara Tábatha da Silva Brito ◽  
Leidiane Pereira Diniz ◽  
Ully M. Pozzobom ◽  
Victor Lemes Landeiro ◽  
Francisco Diogo R. Sousa
Keyword(s):  
Aquatic Ecosystems ◽  
Littoral Zone ◽  
New Records ◽  
Freshwater Ecosystems ◽  
The State ◽  
Sampling Effort ◽  
Mato Grosso ◽  
Occurrence Data ◽  
Cladoceran Species ◽  
Hydrographic Regions

Studies on Cladocera biodiversity in Brazilian freshwater ecosystems are intensifying. However, the fauna of some hydrographic regions is still poorly known. We investigated the richness and species composition of cladocerans in lakes of the Pantanal from the state of Mato Grosso (Paraguay hydrographic region), Brazil. In addition, we cataloged the known cladoceran species in each hydrographic region of the state. Occurrence data were obtained from the literature and samples collected from 50 lakes in the northern Pantanal. We recorded 120 cladoceran species from eight families in the state of Mato Grosso. The occurrence of these species was recorded in the Amazon and Paraguay hydrographic regions. We are unaware of studies on cladocerans conducted in the Tocantins-Araguaia hydrographic region. We reported 17 new records in the Pantanal samples (Paraguay hydrographic region). Overall, richness estimates reveal that 72.6% of the state's cladoceran fauna is already known, while for the Paraguay hydrographic region this estimate is 72.2%. In general, the cladocerans from the Amazon and Paraguay regions did not differ. Our findings allow us to infer the need for further studies in the different hydrographic regions found in Mato Grosso in order to improve the knowledge of cladoceran biodiversity. We suggest a greater sampling effort, particularly in the littoral zone of aquatic ecosystems in this state, which can harbor great biodiversity.

Nitrogen and Phosphorus Removal from Simulated Wastewater with Aquatic Macrophytes

2012 ◽  
Vol 518-523 ◽  
pp. 2597-2603
Author(s):  
Na He ◽  
Zhan Xiang Sun ◽  
Yu Long Zhang ◽  
Ming Da Liu
Keyword(s):  
Aquatic Plants ◽  
Phosphorus Removal ◽  
Aquatic Macrophytes ◽  
Nitrogen And Phosphorus ◽  
Nitrogen And Phosphorus Removal ◽  
Emergent Plants ◽  
N Removal ◽  
Significant Difference ◽  
Simulated Wastewater ◽  
Floating Plants

This study focused on the comparisons between nitrogen and phosphorus removal rates from the simulated wastewater using various kinds of aquatic plants (4 emergent and 3 floating plants). Results showed that aquatic plants has a significant effect on the removal of NO3--N and TP, but has a less effect on NH4+-N. Among the four emergent plants, the order of NO3--N removal capacities was: S. sagittifolia > S. tabernaemontani > T. latifolia > A. calamus. But for TP, the order was: T. latifolia > A. calamus > S. tabernaemontani > S. sagittifolia. To the floating plants, the order of NO3--N and TP removal capacities were: E. crassipes > P. stratiotes. The ANOVA analyses showed that there was a significant difference between planted treatments and unplanted treatment for the removal of NO3--N and TP. The study suggests that the treatment of simulated wastewater using the aquatic macrophytes was effective in the removal of nutrients.

scholarly journals Fish associated with aquatic macrophytes in the Chacororé-Sinhá Mariana Lake system and Mutum River, Pantanal of Mato Grosso, Brazil

2009 ◽  
Vol 69 (1) ◽  
pp. 101-108 ◽  
Author(s):  
EB. Pacheco ◽  
CJ. Da-Silva
Keyword(s):  
Eichhornia Crassipes ◽  
Aquatic Macrophytes ◽  
Biological Diversity ◽  
Aquatic Macrophyte ◽  
Environmental Conservation ◽  
Left Bank ◽  
Mato Grosso ◽  
Analysis Of Similarity ◽  
Eichhornia Azurea ◽  
Macrophyte Species

On the left bank of the Cuibá River, one of the main tributaries of the Pantanal in Mato Grosso, are located the Chacororé and Sinhá Mariana Lakes and the Mutum River, the littoral regions of which are covered with aquatic macrophytes, dominated by the species Eichhornia crassipes and Eichhornia azurea. To examine the ichthyofauna associated with this vegetation, in the year 2003, 3510 fish were collected, distributed among 83 species, and the limnological variables verified near the macrophyte stands where they were sampled. The most abundant and richest order was the Characiformes, followed by the Gymnotiformes and Siluriformes. Analysis of similarity showed a very low, or null, index that the limnological conditions and morphology of the aquatic macrophyte species provide habitat sufficiently homogeneous to give. The limnological conditions and morphology of the aquatic macrophyte species provide a sufficient habitat heterogeneity to give very low, or null, index values. Thus, environmental conservation measures should be more effective in promoting the conservation of the species, given the high levels of biological diversity found in the habitats studied.

Komposisi Tumbuhan Air dan Tumbuhan Riparian di Danau Sentani, Provinsi Papua

2017 ◽  
Vol 2 (2) ◽  
pp. 33
Author(s):  
I Gusti Ayu Agung Pradnya Paramitha ◽  
Riky Kurniawan
Keyword(s):  
Aquatic Ecosystems ◽  
Riparian Vegetation ◽  
Aquatic Macrophytes ◽  
Abundant Species ◽  
Imperata Cylindrica ◽  
Survey Method ◽  
Riparian Zones ◽  
Ceratophyllum Demersum ◽  
Transect Line ◽  
The Status

<strong>Composition of Aquatic Macrophytes and Riparian Vegetation in Lake Sentani, Papua Province.</strong> Macrophytes and riparian vegetation play an important role in maintaining the balance of aquatic ecosystems. The loss of vegetation components can lead to increased sedimentation and change the microhabitat in the waters. This research aimed to obtain the composition of aquatic macrophytes and riparian vegetation in Lake Sentani, as well as to determine the status of waters and the characteristics of riparian zones in Sentani Lake. The research was conducted from September to October 2014. The sampling of aquatic macrophytes and riparian vegetation was conducted at 5 stations: St.1 (Doyo Lama), St.2 (Donday), St.3 (Deyau), St.4 (Kalkotte), and St. 5 (Jaifuri). Data of aquatic macrophytes was taken using square plot (1 x 1 m2) of 15 plots, while riparian vegetation data used survey method with 10 m transect line from the shoreline. The results showed that there were 10 species of aquatic macrophytes from 8 families and 30 species of riparian vegetation from 18 families. Based on these aquatic macrophytes and riparian vegetation, Lake Sentani is categorized as eutrophic, with the dominant macrophyte being hornworts (Ceratophyllum demersum L.; 135 individuals). Station 4 (Kalkotte) has the largest number of individual aquatic macrophytes (96 individuals). Cogongrass (Imperata cylindrica (L.) Beauv.) was found to be the most abundant species of riparian vegetation in all stations (190 individuals). This is related to the shoreline of Lake Sentani which is largely a sandy soil. Station 5 (Jaifuri) has the largest number of species and the largest number of individual riparian vegetation (344 individuals from 20 species). <br />

scholarly journals Richness and distribution of aquatic macrophytes in Brazilian semi-arid aquatic ecosystems

2010 ◽  
Vol 22 (02) ◽  
pp. 147-156 ◽  
Author(s):  
Gustavo Gonzaga Henry-Silva ◽  
Rodrigo Sávio Teixeira Moura ◽  
Luciana Lúcia de Oliveira Dantas
Keyword(s):  
Aquatic Ecosystems ◽  
Aquatic Macrophytes ◽  
Semi Arid
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