Consulta: subjectFacets:"Floodplain"
Registros recuperados: 62
Data/hora: 02/06/2024 01:55:15

Interactions Among Ecosystem Services Across Land Uses in a Floodplain Agroecosystem
Provedor de dados: 7
Autores: Bennett, Elena M.; Department of Natural Resource Sciences and McGill School of Environment, McGill University; elena.bennett@mcgill.ca.
Managing human-dominated landscapes such as agroecosystems is one of the main challenges facing society today. Decisions about land-use management in agroecosystems involve spatial and temporal trade-offs. The key scales at which these trades-offs occur are poorly understood for most systems, and quantitative assessments of the services provided by agroecosystems under different combinations of land uses are rare. To fill these knowledge gaps, we measured 12 ecosystem services (ES), including climate regulation, gas regulation, soil stability, nutrient regulation, habitat quality, raw material production, food production, fishing, sports, recreation, education, and social relationships, in seven common land-use types at three spatial scales, i.e., patch,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Agroecosystem; Ecosystem services; Floodplain; Interactions; Land uses; Spatial scales; Trade-offs.
Ano: 2014

Assessing the Resilience of a River Management Regime: Informal Learning in a Shadow Network in the Tisza River Basin
Provedor de dados: 7
Autores: Sendzimir, Jan; IIASA; sendzim@iiasa.ac.at; Magnuszewski, Piotr; IIASA; Wroclaw University of Technology; piotr.magnuszewski@pwr.wroc.pl; Flachner, Zsuzsanna; Research Institute for Soil Science and Agricultural Chemistry of Hungarian Academy of Sciences; flachner@rissac.hu; Molnar, Geza; Bokartis; bokartis@enternet.hu; Nagy, Zsuzsanna; Corvinus University of Budapest; zsuzsanna.nagy14@uni-corvinus.hu.
Tipo: Peer-Reviewed Reports
Palavras-chave: Flooding; Floodplain; Regime shift; Resilience; Tisza River; Transformability.
Ano: 2008

High genetic diversity among and within bitter manioc varieties cultivated in different soil types in Central Amazonia
Provedor de dados: 74
Autores: Alves-Pereira,Alessandro; Peroni,Nivaldo; Cavallari,Marcelo Mattos; Lemes,Maristerra R.; Zucchi,Maria Imaculada; Clement,Charles R.
Abstract Although manioc is well adapted to nutrient-poor Oxisols of Amazonia, ethnobotanical observations show that bitter manioc is also frequently cultivated in the highly fertile soils of the floodplains and Amazonian dark earths (ADE) along the middle Madeira River. Because different sets of varieties are grown in each soil type, and there are agronomic similarities between ADE and floodplain varieties, it was hypothesized that varieties grown in ADE and floodplain were more closely related to each other than either is to varieties grown in Oxisols. We tested this hypothesis evaluating the intra-varietal genetic diversity and the genetic relationships among manioc varieties commonly cultivated in Oxisols, ADE and floodplain soils. Genetic results did...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Manihot esculenta; Microsatellites; Amazonian dark earths; Floodplain; Oxisols.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000300468

A closer look at the main actors of Neotropical floodplain food webs: functional classification and niche overlap of dominant benthic invertebrates in a floodplain lake of Paraná River
Provedor de dados: 76
Autores: Saigo,Miguel; Marchese,Mercedes; Wantzen,Karl Matthias.
ABSTRACT Functional classification of animals is necessary to enhance the predictive power of food web models. However, while there is a large database for functional classification of benthic invertebrates (Functional Feeding Groups, FFG) in the temperate zone, the attribution of individual species of riverine invertebrates is still in its infancies in the Neotropical Region. Different authors hypothesized that diet breadth was larger in the Tropics, however detailed analysis are scarce. In the present study we aimed at classifying dominant benthic taxa of the Middle Paraná River floodplain (Argentina) into trophic guilds by diet and niche overlap analyses. We sampled twelve taxa of benthic invertebrates from a floodplain lake during low water season and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: KEYWORDS; Diet; Floodplain; Null models; Feeding habits; Paraná River.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212016000100204

Alimentacao de peixes carnivoros da planicie inundavel do Rio Miranda, Pantanal, Mato Grosso do Sul, Brasil.
Provedor de dados: 14
Autores: RESENDE, E. K. de; PEREIRA, R. A. C.; ALMEIDA, V. L. L. de; SILVA, A. G. da.
E analisada a alimentacao de 15 especies de peixes carnivoros de quatro ambientes na planicie de inundacao do baixo rio Miranda, na regiao do Pantanal de Mato Grosso do Sul. Estas especies carnivoras sao generalistas e se alimentam de peixes e outras presas que estejam disponiveis no ambiente, como camaroes, na Baia Cinza. Meandros abandonados, vazantes e baias constituem lares de alimentacao de especies carnivoras de pequeno porte, bem como de formas jovens de grande porte.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Peixe carnivoro; Rio Miranda; Carnivorous fishes; Feeding; Floodplain; Food; Miranda river.; Alimentação.; Pantanal; Fish.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/789740

The ichthyofauna of drifting macrophyte mats in the Ivinhema River, upper Paraná River basin, Brazil
Provedor de dados: 83
Autores: Bulla,Cíntia Karen; Gomes,Luiz Carlos; Miranda,Leandro Esteban; Agostinho,Angelo Antonio.
We describe the fish assemblages associated with drifting macrophyte mats and consider their possible role as dispersal vectors in the Ivinhema River, a major tributary of the upper Paraná River, Brazil. Fish associated with drifting mats were sampled in the main river channel during January and March 2005, when the wind and/or the increased water level were sufficient to transport macrophyte stands. Fish in the drifting mats were sampled with a floating sieve (4 m long x 2 m wide x 0.6 m high, and 2 mm mesh size). In the laboratory, larvae, juvenile, and adult fish were counted and identified to the lowest possible taxonomic level. In four drifting macrophyte mats we captured 218 individuals belonging to at least 28 species, 17 families, and 6 orders....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dispersion; Fish guilds; Floodplain; Free-floating plants; Freshwater fishes.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200018

Seasonal and longitudinal variation in fish assemblage structure along an unregulated stretch of the Middle Uruguay River
Provedor de dados: 83
Autores: Massaro,Marthoni Vinicius; Pachla,Lucas Adriano; Bastian,Rodrigo; Pelicice,Fernando Mayer; Reynalte-Tataje,David Augusto.
ABSTRACT Diversity patterns and their causes remain important questions, especially for ecosystems that preserve natural conditions. This is the case of fish diversity in large Neotropical rivers. In this context, we investigated fish diversity patterns along an extensive unregulated river section (ca. 450 km) in the Middle Uruguay River Basin. Sampling was conducted seasonally between May 2017 and March 2018, at six sites (patches) with contrasting environmental conditions. We collected 3,008 individuals belonging to 90 species. Nine were migratory, which summed relevant biomass in local assemblages (20 to 60%). We observed spatial variation in assemblage structure, but weak seasonal effects. Overall, biomass was similar among sites, but richness tended...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Floodplain; Migratory fish; Riparian vegetation; River channel.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500210

The protected areas system in Brazil as a baseline condition for wetlands management and fish conservancy: the example of the Pantanal National Park
Provedor de dados: 83
Autores: Polaz,Carla N. M.; Ferreira,Fabio C.; Petrere Júnior,Miguel.
ABSTRACT Considering the need for the Brazilian government to develop tools for environmental monitoring for biodiversity conservancy purposes in the national protected areas system, this paper focuses on determining reference site metrics (or baselines) for adapting the Index of Biotic Integrity (IBI) based on the fish assemblages in the Pantanal National Park (PNP). The habitats in the PNP were grouped into four categories: main rivers, corixos (channels connecting the floodplain), permanent bays, and temporary bays. Fish samplings were performed at 12 points during the dry season (Oct-Nov 2010 and 2011). 146 fish species were identified from the total 18,954 individuals collected with standardized fishing gear. There was no association between the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation unit; Fish assemblages; Floodplain; Index of biotic integrity; Multimetric indices.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000300210

Using long-term data to predict fish abundance: the case of Prochilodus lineatus (Characiformes, Prochilodontidae) in the intensely regulated upper Paraná River
Provedor de dados: 83
Autores: Piana,Pitágoras A.; Cardoso,Bárbara F.; Dias,Joilson; Gomes,Luiz C.; Agostinho,Angelo A.; Miranda,Leandro E.
ABSTRACT Populations show spatial-temporal fluctuations in abundance, partly due to random processes and partly due to self-regulatory processes. We evaluated the effects of various external factors on the population numerical abundance of curimba Prochilodus lineatus in the upper Paraná River floodplain, Brazil, over a 19-year period. Panel data analysis was applied to examine the structure of temporal and spatial abundance while controlling auto-regressive processes and spatial non-homogeneity variances that often obscure relationships. As sources of population variation, we considered predation, competition, selected abiotic variables, construction of a dam upstream of the study area, water level and flood intensity during the spawning period. We found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abiotic conditions; Biological interactions; Dam; Floodplain; Flood pulse.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000300203

Spatial and temporal distribution of fish larvae in marginal lagoons of Pantanal, Mato Grosso State, Brazil
Provedor de dados: 83
Autores: Tondato,Karina Keyla; Mateus,Lúcia Aparecida de Fátima; Ziober,Simoni Ramalho.
An analysis was made of the spatial and temporal distribution of the abundance and composition of fish larvae assemblies, aiming to ascertain correlations with biotic and abiotic factors in marginal lagoons of the Cuiabá River floodplain in Brazil's Pantanal wetlands. Samples were collected bimonthly in the pelagic region of the marginal lagoons (fourteen lagoons) close to the littoral zone covered by aquatic macrophytes from December 2006 to April 2007. The captured individuals consisted of 2,739 larvae, represented predominantly by Triportheus spp. (Characidae), Parodontidae, Anostomidae, Characidae and Serrasalmidae. Larval density varied among the sample lagoons in December, but the biotic (zooplankton density) and abiotic (water temperature,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ichthyoplankton; Floodplain; Cuiabá River; Natural nurseries.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100015

Effects of extended absence of flooding on the fish assemblages of three floodplain lagoons in the middle São Francisco River, Brazil
Provedor de dados: 83
Autores: Pompeu,Paulo dos Santos; Godinho,Hugo Pereira.
In the Neotropics, a large proportion of fish communities of large rivers use floodplain as habitats for feeding, reproduction, and refuge. An evaluation was made of the effects of extended dry periods on the species richness, abundance and local extinction of fish species in three marginal lagoons in the middle São Francisco River, southeastern Brazil. The studied lagoons fail to receive river floods during the study period (1994-1996). A gradual reduction in richness and abundance was observed in all lagoons. Migratory fish species had the highest probability to become extinct in the two lagoons that remained with large water volume. Species tolerant to low levels of dissolved oxygen had the lowest probability of local extinction in the lagoon showing an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floodplain; Migratory fish; Extended drought; Hypoxia.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000400006

Fish assemblages of tropical floodplain lagoons: exploring the role of connectivity in a dry year
Provedor de dados: 83
Autores: Petry,Ana Cristina; Agostinho,Angelo Antonio; Gomes,Luiz Carlos.
Irregular rainfall and pronounced reductions of the hydrometric level in the year 2000 resulted in drastically altered hydrological connectivity of lentic environments in the upper Paraná River floodplain. The objective of the present work was to examine spatial and temporal patterns of fish assemblage attributes and structure in relation to limnological variables associated with hydrological connectivity. Fish were collected quarterly by seining in the marginal areas of 15 lagoons belonging to two biotopic categories (connected and disconnected). Variation in assemblage composition reflected the degree of hydrological connectivity. Values of assemblage attributes (species richness, density and biomass) were significantly lower in connected lagoons than in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical fishes; Fish assemblage structure; Hydrological connectivity; Floodplain.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252003000200005

Spatial pattern of a fish assemblage in a seasonal tropical wetland: effects of habitat, herbaceous plant biomass, water depth, and distance from species sources
Provedor de dados: 83
Autores: Fernandes,Izaias M; Machado,Francisco A; Penha,Jerry.
The influence of habitat, biomass of herbaceous vegetation, depth and distance from permanent water bodies on the structure of fish assemblages of a seasonal floodplain was evaluated using data collected along 22 transects in an area of 25 km² in the floodplain of Cuiabá River, Pantanal, Brazil. Each transect was sampled for fish using throw traps and gillnets during the flood period of 2006. Multivariate multiple regression analysis and multivariate analysis of covariance indicated that depth was the only variable that affected the structure of the fish assemblage, both for quantitative data (abundance) and qualitative data (presence-absence). Species such as Neofundulus parvipinnis and Laetacara dorsigera were more abundant in shallower sites (below 25...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Assemblage structure; Effect of habitat alteration; Floodplain; Species richness; Temporary water.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000200007

Spatial and temporal variation of the diet of the flag tetra Hyphessobrycon heterorhabdus (Characiformes: Characidae) in streams of the Eastern Amazon
Provedor de dados: 83
Autores: Benone,Naraiana Loureiro; Lobato,Cleonice Maria Cardoso; Soares,Bruno Eleres; Montag,Luciano Fogaça de Assis.
ABSTRACT Spatial and temporal variations in streams promote large fluctuations of resource availability, thus affecting the diet of fishes. We evaluated the effects of hydrological periods and stream order within periods on the diet of the flag tetra Hyphessobrycon heterorhabdus. We analyzed 160 stomachs in eight streams ranging from 1st to 3rd order between dry and flood period. Sampled streams belonged to a well-preserved area in the Eastern Amazon. The flag tetra is omnivorous, with a tendency towards insectivory. During the dry period, the species exhibited a higher amount of autochthonous than allochthonous items. Fish consumed more allochthonous items in 1st and 2nd order streams in the dry period and in 1st and 3rd order streams in the flood period....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding; Floodplain; Hydrological period; Riparian vegetation; Stream order.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000400206

Feeding ecology of electric eel Electrophorus varii (Gymnotiformes: Gymnotidae) in the Curiaú River Basin, Eastern Amazon
Provedor de dados: 83
Autores: Mendes-Júnior,Raimundo Nonato Gomes; Sá-Oliveira,Júlio César; Vasconcelos,Huann Carllo Gentil; Costa-Campos,Carlos Eduardo; Araújo,Andrea Soares.
ABSTRACT In this study, the composition of the diet and the feeding activity of Electrophorus varii were evaluated. The influence of ontogeny and seasonality in these feeding parameters was also examined. Fish were collected in the Curiaú River Basin, Amazon, Brazil, from March 2005 to February 2006, during the rainy (January-June) and dry (July-December) seasons. Diet composition was characterized based on the analysis of stomach contents and feeding dynamics was assessed based on the Stomach Fullness Index (IR) calculated using stomach weight. Stomach content and RI data were grouped into four-cm size classes (40-80, 80-120, 120-160, and 160-200) and two seasonal periods (rainy and dry). The influence of ontogeny and seasonality in the diet was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amapá; Electric fish; Feeding Activity; Floodplain; Piscivory.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000300202

Mercury bioaccumulation in fish of commercial importance from different trophic categories in an Amazon floodplain lake
Provedor de dados: 83
Autores: Beltran-Pedreros,Sandra; Zuanon,Jansen; Leite,Rosseval Galdino; Peleja,José Reinaldo Pacheco; Mendonça,Alessandra Barros; Forsberg,Bruce Rider.
Thirty-two species of commercially important fish from three trophic levels and nine trophic categories were sampled at a floodplain lake of the Solimões River (Lago Grande de Manacapuru). The fish were analyzed to determine their Hg level and the bioaccumulation, bioconcentration, and biomagnification of this element. The observed increase in mean concentration of mercury (49.6 ng.g-1 for omnivores, 418.3 ng.g-1 for piscivores, and 527.8 ng.g-1 for carnivores/necrophages) furnished evidence of biomagnification. Primary, secondary, and tertiary consumers presented biomagnification factors of 0.27, 0.33, and 0.47, respectively. Significant differences in the bioconcentration and concentration of total Hg occurred between the categories of the third trophic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomagnification; Ecotoxicology; Fish quality; Floodplain; Mercury contamination.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000400022

Temporal distribution of ichthyoplankton in the Ivinhema River (Mato Grosso do Sul State/ Brazil): influence of environmental variables
Provedor de dados: 83
Autores: Reynalte-Tataje,David Augusto; Nakatani,Keshiyu; Fernandes,Rodrigo; Agostinho,Angelo Antônio; Bialetzki,Andréa.
Information on ichthyoplankton is an important tool in determining reproduction periods that - if associated to environmental variables - allows for inferences about the factors that regulate their intensity, beginning, and ending. In this context, this study aims to establish (i) ichthyoplankton composition; (ii) temporal variations in the overall density of eggs and larvae and among the most important taxa; and (iii) the influence of some abiotic and biotic variables on these organisms' abundance. Ichthyoplankton sampling was undertaken during the period between April 2005 and March 2006 at the Ivinhema River, upper Paraná River basin (MS/Brazil). Differences in the ichthyoplankton's temporal variation were evaluated using unifactorial ANOVAs. Principal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bryconamericus stramineus; Fish; Floodplain; Larvae; Plagioscion squamosissimus.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200021

Conservation status and bio-ecology of Brycon orbignyanus (Characiformes: Bryconidae), an endemic fish species from the Paraná River basin (Brazil) threatened with extinction
Provedor de dados: 83
Autores: Tonella,Lívia Helena; Dias,Rosa Maria; Vitorino Junior,Oscar Barroso; Fugi,Rosemara; Agostinho,Angelo Antonio.
ABSTRACT Brycon orbignyanus is an endemic species from La Plata basin whose stocks have been presenting significant reductions throughout the Paraná River. Brycon orbignyanus is categorized as an endangered species. This study evaluated aspects of the bio-ecology of this species that may be related to this threat, highlighting its distribution, abundance, and diet as well as the corresponding relationships between its recruitment and flood regimes. Data were obtained from different parts of the upper Paraná River (stretches free and regulated by dams) from 1986 to 2010 with more detailed data collected from the free remnant of this basin. The results indicate that no records for species exist at more than half of the sampling points located in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dam; Diet; Floodplain; Ontogeny; Recruitment.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000300207

Patterns of niche breadth and feeding overlap of the fish fauna in the seasonal Brazilian Pantanal, Cuiabá River basin
Provedor de dados: 83
Autores: Corrêa,Carlos Eduardo; Albrecht,Miriam Pilz; Hahn,Norma Segatti.
Spatial and temporal variations in patterns of niche breadth and feeding overlap were investigated for the fish fauna in the Pantanal region, aiming to determine the factors that account for species coexistence. Samples were conducted in the Cuiabá River and Chacororé pond, in the upper Pantanal region, Mato Grosso State, Brazil, during one hydrological cycle (March 2000 to February 2001), (designed spatial-seasonal units). Mean niche breadth values were overall low for the fish assemblage (0.2-0.3). Differences between periods were not statistically significant. Feeding overlap values ranged between 0 and 0.4, whereas the mean was always inferior to 0.05 in all spatial-temporal units, and differences between periods were not statistically significant. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coexistence; Diet; Fishes; Floodplain; Pantanal.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300017

Fish larvae from the upper Paraná River: do abiotic factors affect larval density?
Provedor de dados: 83
Autores: Baumgartner,Gilmar; Nakatani,Keshiyu; Gomes,Luiz Carlos; Bialetzki,Andréa; Sanches,Paulo Vanderlei; Makrakis,Maristela Cavicchioli.
The purpose of this study was to evaluate the role of abiotic factors on fish larvae occurrence. Samplings were carried out monthly at 12 stations (grouped in four areas) in the Amambaí, Ivaí and Paraná rivers and in the Itaipu Reservoir (upper Paraná River basin), from October 1994 to January 1995 (spawning season). Simultaneously, we obtained water temperature, pH, electrical conductivity, dissolved oxygen, water level, water velocity, and rainfall. Principal Component Analyses (PCA) and Detrended Correspondence Analyses (DCA) were applied to summarize abiotic and larvae density data, respectively. Amambaí River differed significantly from the other areas in relation to abiotic factors. Itaipu Reservoir differed significantly from the other areas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Larval ecology; Spatial distribution; Floodplain; Itaipu reservoir; Larval drift.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000400002

History of the landscape of Obihiro city before modern development
Provedor de dados: 19
Autores: 橋本, 靖; 佐藤, 雅俊; 赤坂, 卓美.
　自然環境や生物多様性保全の必要性への認識の高まりから，近年，人為的な緑地造成が行われる機会が増えている。その際，対象地本来の自然景観を参考にすることは，より目的に叶った緑地の造成につながりやすいと考えられる。そこで，帯広市周辺の本来の自然景観を推測するために，明治期の開拓以前の状況を，様々な文献を参考にして考察した。有名な江戸後期の十勝日誌等の記述からは，この地域に広い草原地帯があったことがうかがわれ，また，開拓期の様々な記録からも広い草原の存在が示された。また，黒ボク土の分布との関係からは，本地域での広い草原の存在と，野火の発生の歴史が想定された。このように，開拓前の帯広市周辺は，一面が原生的な森林に被われていたわけでなく，その平野部の広大な河川敷は，主に草原に被われていたものと推測された。そのため，帯広市の平野部において緑地の再生を考える際，森林環境だけではなく，湿性の草原や疎林のような環境も，再生するべき緑地景観の候補として，考えに入れる必要があると考えられる。
Palavras-chave: 帯広市; 開拓; 河川敷; 黒ボク土; 湿地; 森林; 草原; 十勝川; 氾濫原; 野火; Andosols; Floodplain; Grassland; Marsh; Obihiro city; Tokachi River; Wildfire.
Ano: 2017
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4558

THE INFLUENCE OF THE THREAT OF FLOODING ON HOUSING VALUES IN FARGO, NORTH DAKOTA AND MOORHEAD, MINNESOTA
Provedor de dados: 31
Autores: Fridgen,   Patrick M.; Shultz,   Steven D.
The hedonic valuation method (HVM) was used to quantify the impact of the threat of flooding on housing values in Fargo, North Dakota and Moorhead, Minnesota  (Fargo-Moorhead).  Prices of  3,783 Fargo-Moorhead homes sold between 1995 and 1998 were regressed against structural housing characteristics, neighborhood and environmental indicators, and three flood risk variables.  Being located in the 100-year floodplain lowered the sale price of an average home by $8,990 and approximately 81 percent of the price depreciation was associated with required flood insurance premiums. After the extensive 1997 flood, homes in the 100-year floodplain were on average priced  $10,241 less than similar homes located outside the floodplain and before the 1997 flood event....
Tipo: Working or Discussion Paper
Palavras-chave: Hedonic valuation method; Flooding; Floodplain; Fargo; Moorhead; Red River of the North; Housing values; Community/Rural/Urban Development.
Ano: 1999
URL: http://purl.umn.edu/23155

Floristic composition and topographic variation in a tidal floodplain forest in the Amazon Estuary
Provedor de dados: 88
Autores: CATTANIO,JOSÉ H.; ANDERSON,ANTHONY B.; CARVALHO,MANOEL S.
Slight topographic variations appear to exert dramatic effects on the structure of forests subject to inundation. In a late successional tidal floodplain forest near the Amazon port of Belém, Brazil, we examined these effects by studying floristic composition along a topographic gradient. We predicted that, relative to high sites, low sites would be characterized by high representation of life forms and taxa characteristic of inundated sites. We found striking variations in floristic composition along a slight topographic gradient. In comparison with topographically high sites, low sites were characterized by a high representation of Palm trees (Arecaceae), low diversity of trees and lianas, and high plant density. These variations appear to reflect...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floodplain; Floristic; Forest; Topography; Várzea.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002012000006

Factors determining the structure of fish assemblages in an Amazonian river near to oil and gas exploration areas in the Amazon basin (Brazil): establishing the baseline for environmental evaluation
Provedor de dados: 103
Autores: Costa,Igor David; Freitas,Carlos Edwar de Carvalho.
ABSTRACT Determining the significance of biotic and abiotic factors in the structuring of fish assemblages in freshwater environments is an important question in ecology, particularly in view of environmental changes caused by man. In this paper we sought to identify the factors responsible for the composition and abundance of fish species collected with gill nets in six locations near ports in forest clearance areas opened up for oil and natural gas exploration (Petrobras Pedro Moura Base) in the Urucu River, during drought and flood cycles. In all, 923 individuals from 23 families and 82 species were collected, totalling a biomass of 182,244 g. The most abundant species during the flood season were Bryconops alburnoides (Kner, 1858) and Dianema...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abiotic; Floodplain; Biological organization; Hydrocarbons.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000500351

Species composition and abundance of rotifers in different environments of the floodplain of the upper Paraná river, Brazil
Provedor de dados: 104
Autores: Garcia,Aparecida Paula Perez; Lansac-Tôha,Fábio Amodêo; Bonecker,Cláudia Costa.
The purpose of this study was to describe the composition and abundance of rotifers in different environments: one lotie (the Ivinheima River) and another lentic (the Patos Lake) located in the floodplain of the Upper Paraná River. The influence of limnological variables on the structure and dynamics of rotifers was also examined. Samples were taken monthly from March 1992 through February 1993, in the open water region of the lake and river and in the channel between them and, in the littoral region of the lake and river. Of the 96 species identified, the best represented families were: Brachionidae (20 species), Lecanidae (18 species), and Trichocercidae (15 species). 55 species were widely distributed, 13 were pantropical, 16 neotropical (8 endemic to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rotifera; Paraná River; Floodplain; Neotropics.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000200006

Relação peso-comprimento e estrutura da população de nove espécies de Characidae na planície de inundação do Alto Rio Paraná, Brasil
Provedor de dados: 104
Autores: Lizama,Maria de los Angeles Perez; Ambrósio,Angela Maria.
The length/weight relationships are described for Astyanax bimaculatus, A. schubarti, Aphyocharax nasutus, Cheirodon notomelas, Hyphessobrycon callistus, Hemigrammus marginatus, Moenkhausia intermedia, M. sanctae-filomenae and Roeboides paranensis of tropical freshwater fishes in the high Paraná River floodplain. The fishes were caught over a period of 12 month (March 1993 to February 1994). The equations of the length/weight relationships for each species were: Wt=0.0235.Ls3.13; Wt=0.0162.Ls2.89; Wt=0.0179.Ls3.11; Wt=0.0199.Ls3.09; Wt=0.0183.Ls3.10; Wt=0.0140.Ls3.14; Wt= 0.0200.Ls3.21 and Wt=0.0101.Ls3.21, respectively.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Length/weight relationships; Characidae; Floodplain; Paraná River.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000300015

Vertical distribution of zooplankton in the water column of Lago Amapá, Rio Branco, Acre, Brazil
Provedor de dados: 104
Autores: Keppeler,Erlei Cassiano; Hardy,Elsa Rodrigues.
The aim of investigation was to study the model of vertical distribution in Lago Amapá, taking into consideration the seasonality of its zooplanktonic composition. Lago Amapá (10º2'36"S and 67º50'24"W) is located in the floodplain of the Rio Acre. Samplings were conducted at three different depths of the water column, to study the vertical distribution of zooplankton populations and determine some physico-chemical and biological parameters of Lago Amapá. Weekly samples were taken with a Van Dorn sampler. The species showed greater concentrations at the by means of water column. Thirty-eight zooplankton species were found in the samples represented by Rotifera (30), Cladocera (5) and Cyclopoida (3). The temperature of the water column showed a tendency...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floodplain; Intermediate disturbance hypothesis; Zooplankton species.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752004000200002

Abundance and composition of Rotifera in an abandoned meander lake (Lago Amapá) in Rio Branco, Acre, Brazil
Provedor de dados: 104
Autores: Keppeler,Erlei Cassiano; Hardy,Elsa Rodrigues.
The rotifer community in Lago Amapá (abandoned meander lake of the Rio Acre floodplain) was investigated with respect to seasonal changes. Sampling was performed at three collection stations, generally weekly, during the dry season between May 8, 1997 and October 31, 1997, and during the rainy season between January 2, 1998 and February 24, 1998. The density and composition of rotifer species (48 taxons of rotifers) were determined, and their diversity and abundance were observed to be greater, respectively, at high-water and low-water. Anova was performed, by means of the F test, to test for seasonal differences in environmental variables and rotifers, showing that there was a highly statistically significant difference for pH and transparency (p &lt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floodplain; High water phase; Low water phase; Rotifera community.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752004000200011

Some aspects of the ecology of fish larvae in the floodplain of the high Paraná river, Brazil
Provedor de dados: 104
Autores: Baumgartner,Gilmar; Nakatani,Keshiyu; Cavicchioli,Maristela; Baumgartner,Maria do Socorro Tenório.
The spatial and temporal distribution and nychthemeral variation of fish larvae in six stations (Ivinhema, Patos, Paraná, Cortado, Baía and Guaraná) in the floodplain of the high Paraná river are provided. The paper also provides the relationship of this distribution to some environmental factors. From March 1992 to February 1993 ichthyoplanktonic samples were collected by conic cylindrical nets, with 0.5mm of mesh size and fluxometer attached, in 10-minute hauls at the surface and bottom during nychthemeral cycles. At the same time water samples were taken to determine environmental factors. During the above period 5,672 larvae were collected: 57,6% from Cortado station and 13,2% from Ivinhema and Paraná stations. The greatest densities were recorded...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish larvae; Ecology; Distribution; Floodplain; Paraná river.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000300005

Vegetational changes during the last millennium inferred from a palynological record from the Bananal Island, Tocantins, Brazil
Provedor de dados: 36
Autores: MENDES,Laís Aguiar da Silveira; PIRES,Etiene Fabbrin; MENESES,Maria Ecilene Nunes da Silva; BEHLING,Hermann.
The Bananal Island is regarded the largest fluvial island in the world, bounded by Araguaia and Javaés rivers, being located in southwest of Tocantins. The objectives of this work were to provide information about the vegetational changes that occurred at the Bananal Island, in order to contribute to the understanding the dynamics of past and current savanna and areas of ecotones with forests. Thus, a sedimentary core collected from a small lake at the Bananal Island plain was submitted to pollen and radiocarbon dating analyses. The results showed that the last millennium was dominated by forest reflecting a wet climate. At the beginning of the record (920-770 yr cal BP) the wet climate and high rainfall produced flooding during long rainy seasons that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floodplain; Late Holocene; Palynology.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672015000200215

Seasonal changes of leaf Nitrogen content in trees of Amazonian floodplains
Provedor de dados: 36
Autores: PAROLIN,Pia; ARMBRÜSTER,Nicole; JUNK,Wolfgang J.
In Amazonian floodplains the trees are exposed to extreme flooding of up to 230 days a year. Waterlogging of the roots and stems affects growth and metabolic activity of the trees. An increased leaf fall in the aquatic period and annual increment rings in the wood indicate periodical growth reductions. The present study aims at documenting seasonal changes of metabolism and vitality of adult trees in the annual cycle as expressed by changes of leaf nitrogen content. Leaves of six tree species common in floodplains in Central Amazonia and typical representants of different growth strategies were collected every month between May 1994 and June 1995 in the vicinity of Manaus, Brazil. Mean leaf nitrogen content varied between 1.3% and 3.2% in the non-flooded...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leaf nitrogen; Growth strategy; Waterlogging; Várzea; Floodplain; Amazonia.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672002000200231

THE VEGETATION OF A SEASONAL VÁRZEA FOREST IN THE LOWER SOLIMÕES RIVER, BRAZILIAN AMAZONIA
Provedor de dados: 36
Autores: KLINGE,Hans; ADIS,Joachim; WORBES,Martin.
The species composition of the seasonal várzea forest growing on a bank of the Ilha de Marchantaria / lower Solimões-Amazonas River, Brazil was studied in an area of slightly less than one hectare. Two biomass plots were harvested. Forty-seven arboreal species representing 46 genera in 25 families were recorded. Tree density was 1086 per hectare. Total basal area was 45 m2 ha1. Mean species density was 6.5 ± 1.98 per 100 m2. The most abundant species were Crataeva benthamii(Capparidaceae), Laetia corymbutosa(Flacourtiaceae) and Vitex cymosa(Verbenaceae). The highest basal area per species was 10.2 m2 for Pseudobombax munguba(Bombacaceae). The common species are known to be typical floristic elements of the seasonal varzea forest. Above ground dry biomass...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Bioelements; Biomass; Floodplain; Seasonal várzea forest; Species composition; Structure.
Ano: 1995
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671995000400201

River damming affects seedling communities of a floodplain forest in the Central Amazon
Provedor de dados: 39
Autores: Rocha,Maíra da; Feitosa,Yuri Oliveira; Wittmann,Florian; Piedade,Maria Teresa Fernandez; Resende,Angélica Faria de; Assis,Rafael Leandro de.
ABSTRACT The flood pulse of black water rivers in the Amazon basin determines the composition of species along the flood gradient in igapó forests. The Balbina dam, built on the Uatumã River, has altered the flood pulse and caused changes in the floristic composition of adult trees throughout the downstream area. There is a lack of studies on how communities of seedlings in igapó forests respond to changes in the flood pulse. This study investigates the response of seedling communities in the igapó forest downstream the Balbina dam and compares it with two pristine areas. The areas were sampled with transects of 1x25 m within 36 plots (25x25 m) along the flood gradient. Richness and dominance were calculated by simple regression and ordination analyses....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dams; Environmental stress; Flood gradient; Floodplain; Hydrologic cycle; Seedlings; Tropical rivers.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100192

Composition and species richness of flagellate protozoa from environments associated to the Baía river (Mato Grosso do Sul State, Brazil): influence of the hydrological period and the connectivity - doi: 10.4025/actascibiolsci.v32i4.6307
Provedor de dados: 3
Autores: Camargo, Janielly Carvalho; Universidade Estadual de Maringá; Velho, Luiz Felipe Machado; Universidade Estadual de Maringá.
Despite flagellate protozoa are important for the metabolism of aquatic ecosystems, researches about the ecology of this community is scarce. Therefore, this study investigated the influence of flood regime and hydrological connectivity on the patterns of composition and species richness of protozoan flagellates from aquatic environments in the upper Paraná river floodplain. To this end, samplings were undertaken in two periods of the hydrological cycle (March 2008 and September 2008), at six lentic environments associated with the Baía river (three are connected to the river, and three are isolated). 120 taxa were identified in the studied area, distributed in 10 orders and one residual group. This high species richness was sustained by the order...
Palavras-chave: 2.05.00.00-9 Protozooplankton; Faunistic inventory; Floodplain Protozooplankton; Faunistic inventory; Floodplain.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6307

Distribuição da entomofauna associada às macrófitas aquáticas na vazante do rio Correntoso, Pantanal do Negro, Estado do Mato Grosso do Sul, Brasil - DOI: 10.4025/actascibiolsci.v31i2.1182
Provedor de dados: 3
Autores: Silva, Fábio Henrique; UNIDERP; Favero, Silvio; UNIDERP; Sabino, José; UNIDERP; Garnés, Silvio Jacks dos Anjos; UIDERP.
Este trabalho teve como objetivo pesquisar a distribuição de insetos associados a macrófitas aquáticas e a similaridade dos sítios de coleta, no período de vazante, em um trecho do rio Correntoso, Pantanal do Negro, Estado do Mato Grosso do Sul, Brasil. Os sítios de coleta foram determinados conforme a mudança na estrutura da formação ripária, caracterizados como abertos com comunicação com campos inundáveis; intermediários sem comunicação com campos inundáveis; fechados sem comunicação com campos inundáveis. Foram realizadas três coletas durante o período de vazante, em seis sítios de coletas. Os organismos foram coletados utilizando rede D com malha de 300 &amp;microm e esforço amostral de cinco lances de rede em raízes de macrófitas aquáticas. Foi...
Palavras-chave: 2.00.00.00-6 Ciências Biológicas entomofauna aquática; Pantanal; Planície de inundação 2.05.00.00-9 aquatic entomofauna; Pantanal; Floodplain.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1182

Opportunistic diet of Triportheus nematurus (Characiformes: Triportheidae) in Southern Pantanal ponds: influences of temporal availability and abundance of resources
Provedor de dados: 3
Autores: Lopes, Douglas Alves; Vieira, Kelly Regina Ibarrola; Mota, Rafael da Silva; Souza, Mateus Rojas Franco de; Costa, Fábio Edir dos Santos; Paiva, Fernando.
 The aim of this study was to investigate the diet composition and feeding strategies of Triportheus nematurus at the Miranda-Abobral floodplain region and evaluate if the temporal phenomenon of the flood pulse has influenced in the diet composition of the species. The fishes were sampled quarterly – between August/2014 and July/2016 – in the marginal ponds located in the Estrada Parque (MS 184). The feeding habits of T. nematurus was characterized as omnivorous and its opportunistic feeding behaviour, since its diet is composed of different resources along of the year. Insects and organic matter were the most important items during the drought period; plant material (leaves and roots) and Euglenophyceae algae were more expressive during the inundation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ecologia - Ecologia de Ecossistemas feeding; Floodplain; Temporal variations; Neotropical fish. Ecologia Trófica.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/36391

O regime hidrológico do rio Ivinhema (Estado do Mato Grosso do Sul) e sua influência na assembléia zoobentônica - doi: 10.4025/actascibiolsci.v34i1.6481
Provedor de dados: 3
Autores: Arenas-Ibarra, José Antonio; Universidade Estadual de Maringá - UEM; Takeda, Alice Michiyo; Universidade Estadual de Maringá - UEM; Fujita, Daniele Sayuri; Universidade Estadual de Maringá - UEM.
O estudo foi realizado em diferentes ambientes da várzea do rio Ivinhema com o intuito de analisar a variação espacial e temporal da assembléia de invertebrados bentônicos, bem como sua relação com as variáveis físicas e químicas e o nível hidrométrico. Foram estudados quatro ambientes, o canal principal do rio, o canal Ipoitã, a lagoa Ventura (sem comunicação) e a lagoa dos Patos (com comunicação). As coletas foram realizadas trimestralmente de fevereiro a novembro de 2002. O sistema rio Ivinhema foi caracterizado por um regime de potamofase bimodal com intensidades moderadas e grandes amplitudes, permanecendo em potamofase 184 dias em 2001 e 67 dias em 2002. Foram observadas as variações espacial e temporal, quanto às variáveis físicas e químicas,...
Tipo: Distribuição espacial e temporal de densidade e riqueza
Palavras-chave: Ecologia de comunidades assembléia zoobentônica; Planície de inundação; Pulso hidrossedimentológico; Sistema Ivinhema Ecologia zoobenthic assemblage; Floodplain; Hydrosedimentological pulse; Ivinhema system.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6481

Resposta das algas perifíticas às alterações de temperatura e ao enriquecimento artificial de nutrientes em curto período de tempo - DOI: 10.4025/actascibiolsci.v31i3.1627
Provedor de dados: 3
Autores: Murakami, Eliza Akane; UEM; Rodrigues, Liliana; UEM.
O estudo visou avaliar, em um experimento de mesocosmos, a influência da temperatura e de concentrações de nutrientes na abundância das algas perifíticas (exceto Bacillariophyceae) na planície de inundação do alto rio Paraná. O delineamento experimental constituiu-se de cinco tratamentos: controle (C) e adição de nutrientes (P+, N+ e NP+) a 25&amp;deg;C, e frio (F) com diminuição da temperatura a 15&amp;deg;C e sem adição de nutrientes. Lâminas de vidro foram utilizadas para colonização das algas perifíticas, e as amostragens foram feitas entre o 15&amp;deg; e o 31&amp;deg; dia de sucessão. Pela Análise de Correspondência Canônica, pode-se observar uma clara separação entre os tratamentos devido à temperatura e adição de nutrientes. A diminuição de...
Palavras-chave: 2.00.00.00-6    Ciências Biológicas algas perifíticas; Enriquecimento artificial; Temperatura; Mesocosmos; Planície de inundação periphytic algae; Artificial enrichment; Temperature; Abundance; Floodplain.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1627

New species of Tereancistrum (Dactylogyridae) monogenean parasites of Schizodon borellii (Characiformes, Anostomidae) from Brazil, and emended diagnosis for T. parvus
Provedor de dados: 3
Autores: Karling, Letícia Cucolo; Universidade Estadual de Maringá; Lopes, Luiza Paula Conceição; Universidade Estadual de Maringá; Takemoto, Ricardo Massato; Universidade Estadual de Maringá; Pavanelli, Gilberto Cezar; Universidade Estadual de Maringá / Universidade Federal do Paraná.
Tereancistrum paranaensis sp. n. is described from the gills of Schizodon borellii (Boulenger 1900) (Characiformes) from the upper Paraná river floodplain, Brazil. The new species is mainly characterized by morphology of copulatory complex, dorsal anchor with shaft recurved and pointed and arc-shaped dorsal bar. Tereancistrum parvus was described based on only one specimen and some characteristics were not observed. Now we provide an emendation to the diagnosis of this species. 
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dactylogyridae; Ectoparasite; Fish; Piava; Floodplain; Brazil.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/20216

Índices bióticos para avaliação da qualidade ambiental em trechos do rio Correntoso, Pantanal do Negro, Estado do Mato Grosso do Sul, Brasil - doi: 10.4025/actascibiolsci.v33i3.1478
Provedor de dados: 3
Autores: Silva, Fábio Henrique da; Programa de Pós-Graduação em Meio Ambiente e Desenvolvimento Regional, Universidade para o Desenvolvimento  do Estado e da Região do Pantanal, Campo Grande, MS; Favero, Silvio; Programa de Pós-Graduação em Meio Ambiente e Desenvolvimento Regional, Universidade para o Desenvolvimento  do Estado e da Região do Pantanal, Campo Grande, MS; Sabino, José; Programa de Pós-Graduação em Meio Ambiente e Desenvolvimento Regional, Universidade para o Desenvolvimento  do Estado e da Região do Pantanal, Campo Grande, MS; Garnés, Silvio Jacks dos Anjos; Programa de Pós-Graduação em Meio Ambiente e Desenvolvimento Regional, Universidade para o Desenvolvimento  do Estado e da Região do Pantanal, Campo Grande, MS.
Este trabalho teve como objetivo pesquisar a estrutura da comunidade de insetos aquáticos, utilizando esta comunidade como indicadora da qualidade ambiental de um trecho do rio Correntoso, Pantanal do Negro, Mato Grosso do Sul, Brasil. Foram realizadas seis campanhas de coleta em diferentes períodos sazonais: vazante, seca e cheia. Os organismos foram coletados utilizando rede D com malha de 300 &amp;micro;m e esforço amostral de cinco lances de rede nas raízes dos bancos de macrófitas. Foram comparados três ambientes (aberto, intermediário e fechado), por junção dos dados obtidos de seis sítios de coleta. Foi analisada a riqueza, abundância absoluta e relativa das famílias de insetos amostrados e a avaliação da qualidade da água usando o índice BMWP,...
Palavras-chave: Ecologia; Limnologia entomofauna aquática; Bioindicadores; Planície de inundação 2.05.00.00-9 aquatic entomofauna; Bioindicators; Floodplain.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1478

Functional groups of entomofauna associated to aquatic macrophytes in Correntoso river, Rio Negro sub-region, Pantanal, Mato Grosso do Sul State, Brazil - doi: 10.4025/actascibiolsci.v34i1.7822
Provedor de dados: 3
Autores: Silva, Fábio Henrique; Universidade para o Desenvolvimento  do Estado e da Região do Pantanal - UNIDERP; Favero, Silvio; Universidade para o Desenvolvimento  do Estado e da Região do Pantanal - UNIDERP; Sabino, José; Universidade para o Desenvolvimento  do Estado e da Região do Pantanal - UNIDERP.
This work aimed to study the structure of functional groups of entomofauna associated to aquatic macrophytes in Correntoso river, Rio Negro sub-region, Pantanal, Mato Grosso do Sul State, Brazil. Six samples were taken in different seasonal periods; ebb, dry and wet. The organisms were collected using D net (300 m mesh), sweeping five times through the roots of macrophyte banks at each sample session. Three environments were compared (open, intermediary, close) using data from six collection sites, through which were analyzed absolute abundance, observed richness of families and the sampled specimens were also separated in functional groups. A total of 60 families from 12 orders of Insecta were registered, totaling 19,773 sampled insects. The largest...
Tipo: Grupos funcionais tróficos
Palavras-chave: Ecologia; Limnologia aquatic entomofauna; Feeding groups; Floodplain; Pantanal 2.05.00.00-9.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7822

Distribuição espacial e temporal das larvas de Chironomidae em diferentes ambientes do complexo - rio Baía, Estado do Mato Grosso do Sul, Brasil - doi: 10.4025/actascibiolsci.v33i4.5386
Provedor de dados: 3
Autores: Anjos, Adriana Felix dos; UEM; Takeda, Alice Michiyo; UEM; Pinha, Gisele Daiane; UEM.
A planície de inundação do alto rio Paraná caracteriza-se pela grande diversidade de organismos aquáticos e as larvas de Chironomidae destacam-se por sua elevada abundância. A partir da hipótese de que as variáveis abióticas influenciam a composição, densidade e dominância das larvas de Chironomidae em diferentes ambientes e períodos amostrados, este trabalho objetivou: caracterizar o rio Baía, canal secundário, lagoa não-conectada (Fechada) e lagoa conectada (Guaraná) da planície de inundação do alto rio Paraná, de acordo com os atributos da assembléia de Chironomidae e identificar possíveis gradientes de distribuição espacial e temporal das larvas, relacionando-as com algumas variáveis abióticas. As coletas foram realizadas no período de março de 2003 a...
Palavras-chave: Insetos aquáticos; Dominância; Composição granulométrica; Planície de inundação; Rio Paraná 2.05.00.00-9 aquatic insects; Dominance; Granulometric composition; Floodplain; Paraná river.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5386

UPFLOW model prediction of capillary rise into root zone soil moisture for shallow water table soils of Obio Akpa river floodplain in the Niger-Delta environment, Nigeria.
Provedor de dados: 111
Autores: Udom, Ikpe Jimmy; Nta, Samuel Akpan.
UPFLOW model was used to provide assessments of capillary rise into root zone soil moisture in shallow water table soils of Obio Akpa river floodplain using drum-culture lysimeters. Soil moisture depletion experiment was undertaken through the use of drums with bases intact and drums with bases removed and sunk in the field at different depths during the dry period with no rainfall and no irrigation. UPFLOW model was validated by comparing simulated capillary soil moisture values from a falling water table with gravimetrically observed data from 0 – 500, 500-1000 and, 1000-1500 mm water table  depth in sandy loam and sandy clay soils. Simulated runs mimic the observed fluctuations and trend of capillary rise to the root zone. The statistical pointers of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: UPFLOW; Capillary rise; Shallow water table; Floodplain; Obio Akpa; Nigeria.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5681

Plant species diversity in a Neotropical wetland: patterns of similarity, effects of distance, and altitude
Provedor de dados: 42
Autores: BAO,FRANCIELLI; LEANDRO,THALES D.; ROCHA,MAÍRA DA; SANTOS,VANESSA S. DOS; STEFANELLO,THIAGO H.; ARRUDA,RAFAEL; POTT,ARNILDO; DAMASCENO-JÚNIOR,GERALDO A.
ABSTRACT The Brazilian Pantanal is an extensive wetland with heterogeneous habitats, primarily due to the river-floodplain system and plants with differential adaptations and reproductive strategies. Factors such as altitude, distance among plant formations, and flood pulse must be considered to better understand its diversity. Aiming to assess the influence of biogeographic patterns in this system, we analyzed the floristic composition of six areas along the Paraguay River, including residual relieves, verifying the pattern of similarity, and effects of distance and altitude. We recorded 356 species in 87 families, mostly perennial (75%), and some annuals (15%) and pluriannuals (5%). Herbaceous plants were the most represented (48%), followed by arboreal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biogeography; Floodplain; Floristics; Pantanal; Vegetation.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000100085

Phytoplankton community of Reis lake in the Brazilian Amazon
Provedor de dados: 42
Autores: SILVA,ISE G.; MOURA,ARIADNE N.; DANTAS,ENIO W.
Reis Lake is located in the municipality of Caracaraí, state of Roraima (Brazil) and is subject to fluctuations in water level. The aim of this study was to analyze the structure of the phytoplankton community on the nictemeral and seasonal scales and determined the influence of limnological variables. Sampling was performed in the rainy season (June/2006) and dry season (November/2006), considering two nictemeral cycles. The phytoplankton community was assessed with regard to composition and density, abiotic variables were analyzed simultaneously. The lake had low concentrations of oxygen, clinograde profile and water stratified during the day and homogenous at night, with low concentrations of nutrients and waters ranging from slightly acidic to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytoplankton; Nictemeral; Floodplain; Seasonal; State of Roraima.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200649

The effect of seasonality on the structure of rotifers in a black-water shallow lake in Central Amazonia
Provedor de dados: 42
Autores: NOVA,CLARICE C.; LOPES,VANESSA G.; SOUZA,LEONARDO COIMBRA E; KOZLOWSKY-SUZUKI,BETINA; PEREIRA,TALITA A.A.; BRANCO,CHRISTINA W.C.
Rotifers have often been used as indicators of sudden changes in physical and chemical features of the aquatic environment. Such features vary greatly during flood pulse events in small lakes connected to major floodplains. However, few are the studies that investigate the consequences of the flood pulse in rotifer species composition, abundance, richness and diversity, especially in Amazonian lakes. We analyzed samples from a small blackwater lake of an “igarapé” connected permanently to the Negro river, in Central Amazonia. Samples were taken twice a year for two years, comprising flooding and receding periods of the flood pulse. Rotifer abundance increased significantly after draught events, and electrical conductivity and turbidity were intrinsically...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floodplain; Flood pulse; “igarapé”; Rotifera; Zooplankton.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301359

Amphibians of varzea environments and floating meadows of the oxbow lakes of the Middle Purus River, Amazonas, Brazil
Provedor de dados: 49
Autores: Ramalho,Werther Pereira; Andrade,Murilo Sousa; Matos,Lucicléia Railene Assis de; Vieira,Lisandro Juno Soares.
Despite the historical knowledge on amphibians of the Purus River basin, basic information on assemblages is fragmented, with gaps in knowledge existing at various scales, which limits conservation strategies. This study provides information on the composition, richness and abundance of the amphibian fauna in varzea environments and floating meadows of the oxbow lakes of the Middle Purus River between the Boca do Acre and Pauiní municipalities, Amazonas, Brazil. We sampled six oxbow lakes using forty-seven 200-meter transects, distributed among the "floating meadows," "high varzea" and "low varzea," from April to January 2014. We recorded 59 species, with the family Hylidae being predominant. This amphibian fauna represents approximately 19% of the species...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Floodplain; Flood pulse; Diversity; Conservation.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000100201

An ordination technique for fish diet comparisons
Provedor de dados: 52
Autores: Penczak,Tadeusz; Agostinho,Angelo A.; Hahn,Norma S.
The frequency of nine food types in the guts of 58 fish species from the Paraná River and its floodplain was compared using similarity definition. A synthetic table ordered on the basis of this definition, with fish species on axis y, and food types on axis x, enabled easy reading numerous kinds of information on feeding ecology of fish in the catchment. For example: 1) which fish species were generalists, specialists or opportunists, 2) those classified as herbivorous species consumed small amounts of animal food, 3) that fish consumed any food type that contained transformed solar energy and matter, 4) what are food preferences dependent on fish taxonomic affinity. The possibility of employing synthetic tables for investigating spatial and temporal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paraná River; Floodplain; Fish; Feeding; Similarity definition; Synthetic table.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000100013

Arboreous vegetation of an alluvial riparian forest and their soil relations: Porto Rico island, Paraná river, Brazil
Provedor de dados: 52
Autores: Campos,João Batista; Souza,Maria Conceição de.
The dynamics of alluvial deposits in floodplains forms islands and sandbanks. Deposits frequently accumulate at the river margins and on islands with consequent side growths. One of these sandbanks which started to form in 1952 annexed an area of 12.4ha to the Porto Rico island (53º15’W and 22º45’S). At present a forest fragment of approximately 2.0 ha exists in this place. The structural analysis of arboreous vegetation of this fragment showed a floristic gradient related to the physical and chemical variations of the substratum. High density of pioneer species associated to the absence of recruitment of new individuals of these and other successional categories indicated that the forest was impaired in its succession process. This fact could be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alluvial forest; Floodplain; Forest structure; Phytosociology; Riparian vegetation; Succession.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000200004

Spatial and multi-temporal analysis of deforestation and quantification of the remnant forests on Porto Rico Island, Paraná, Brazil
Provedor de dados: 52
Autores: Campos,João Batista.
The process of land occupation by the state of Paraná practically decimated its forests. Presently, only 7% from a total area of 83.41% is covered by forests. Most of them are now concentrated in the "Serra do Mar" and in the Iguaçu National Park. With regard to forest cover the most critical region is situated in the northwestern of the state with less than 1% of its area covered by forest. This restricted area mainly consists of conservation units and the islands of the high Paraná River floodplain. The present study consists of a spatial and multi-temporal analysis of deforestation and the quantification of the remnant forests on Porto Rico island (22º45'S; 53º15'W), which have their occupation history linked to the colonization process of the region....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Photogrammetry; Alluvial forest; Floodplain; Forest.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100013

Seasonal fluctuation of some limnological variables on a floodplain lake (Patos lagoon) of the Upper Paraná River, Mato Grosso do Sul State, Brazil
Provedor de dados: 52
Autores: Rodrigues,Luzia Cleide; Train,Sueli; Roberto,Maria do Carmo; Pagioro,Thomaz Aurélio.
Temporal variations of some limnological variables in limnetic and littoral regions of Patos lagoon, a "várzea" lake on the floodplain of the Upper Paraná River (22(0) 43'12"S e 53(0) 17'37"W), were studied in relation to hydrological and climatological factors. Measurements of water temperature, euphotic zone, suspended material, electrical conductivity, total alkalinity, pH, dissolved oxygen, carbon dioxide, total nitrogen, total Kjeldahl nitrogen, total phosphorus, dissolved phosphorus, reactive soluble phosphorus and chlorophyll a were taken monthly between March 1993 and February 1994. Results lend evidence to the importance of the hydrological regime on the dynamic of limnological variables in floodplain lakes. A dilution of nutrients in the lagoon,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Limnological variables; Flood pulse; Floodplain; Paraná River; Connectivity; Nutrients.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000600014

Caloric density of aquatic macrophytes in different environments of the Baía river subsystem, upper Paraná river floodplain, Brazil
Provedor de dados: 52
Autores: Lopes,Célia de Almeida; Faria,Anna Christina Esper Amaro de; Manetta,Gislaine Iachstel; Benedito-Cecilio,Evanilde.
The aim of this work was to determine the caloric density of leaves, stems and roots of aquatic macrophytes in different environments of the Baía subsystem (Baía river and Fechada and Guaraná lagoons) on the Upper Paraná river floodplain, in addition to identify the variability between ecological groups. Samplings of Eichhornia crassipes, Salvinia spp, Pistia stratiotes, Eichhornia azurea, Polygonum sp, Cyperaceae and Poaceae were carried out in February 2003. Spatial differences in the caloric densities were not observed for these plants. Caloric density values varied from 1906.9 cal/g dry weight (root) to 4675.0 cal/g dry weight (leaf). However, significant differences between the caloric content averages of the vegetative structures were observed only...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paraná river; Floodplain; Aquatic macrophytes; Calorimetry.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000600018

Caloric density of Loricariichthys platymetopon (Osteichthyes, Loricariidae) in the Upper Paraná River floodplain, Brazil
Provedor de dados: 52
Autores: Garcia,Daniela Aparecida; Benedito,Evanilde; Takeda,Alice Michiyo.
This study analyzed the muscle energy content (caloric density) of L. platymetopon captured at different sites of the Upper Paraná River floodplain, and potential relationships between the content and various environmental variables (water temperature, oxygen dissolved in water, food availability, relative numeric abundance) and biological variables (body size and reproductive cycle). Quarterly samplings from September 2006 to June 2007 in the lakes and rivers resulted in a sample of 739 specimens, whose muscle caloric density was determined using a calorimeter. Differences between the caloric averages of the males and females and among the different stages of gonadal development were not significant. Caloric density varied over time and space, with two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy; Detritivorous fish; Direct calorimetry; Muscle; Floodplain.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000500015

Planktonic and non-planktonic rotifers in two environments of the Upper Paraná River floodplain, state of Mato Grosso do Sul, Brazil
Provedor de dados: 52
Autores: Bonecker,Cláudia C.; Lansac-Tôha,Fábio A.; Rossa,Dayane C.
Investigations were carried out for the composition and occurrence of rotifer taxa of different forms and sizes during two distinct hydrological periods, in two environments (river and lake). Two sampling stations were established in open water of each environments. Surface samples were taken daily for 14 days. The faunistic similarity between the environments was established using Jaccard's index. One hundred and fourty three taxa were identified. The largest number of taxa was recorded in the river. Faunistic similarity between these environments was greater during high water. The planktonic taxa predominated and the difference for the non-planktonic ones was not marked. Non-planktonic taxa predominated in the river, while both types were numerous in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rotifers; Size classes; Habitat; Floodplain; Brazil.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000400009

Potencial for natural forest regeneration from seed bank in an upper Paraná river floodplain, Brazil
Provedor de dados: 52
Autores: Campos,João Batista; Souza,Maria Conceição de.
The historical process of deforestation was analyzed to evaluate the regeneration potential of forests from soil seed bank of Porto Rico island (53° 15'W and 22° 45'S) in the upper Paraná river floodplain. Remnant forest fragments were identified and measured and the structure of arboreous vegetation and the composition of the seed bank of the forests and grassland of the island were evaluated. Results showed a fast process of deforestation with critical levels of forest: the remaining twice fragments represented only 5.98% of the total surface of the island. Disturbance by cattle raised on the island continuously degraded the fragments (backward succession), while expansion of areas with pasture favored severe impoverishment of the seed banks flora. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Deforestation; Alluvial forest; Floodplain; Paraná river; Brazil.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400018

Quantitative analysis of foraging habitat use by ciconiiformes in the upper Paraná river Floodplain, Brazil
Provedor de dados: 52
Autores: Gimenes,Márcio Rodrigo; Anjos,Luiz dos.
The aim of this study was to analyze the seasonal variations in habitat selection and abundance of Ciconiiformes species in four foraging habitats (rivers, channels, connected and disconnected lagoons) on the upper Paraná River floodplain, Brazil, and to conduct the surveys of wading birds in 2002 and 2003. The largest number of species and highest abundances of most species were observed in the connected lagoons. Snowy Egrets (Egretta thula), Wood Storks (Mycteria americana), Roseate Spoonbills (Platalea ajaja), and Jabirus (Jabiru mycteria) frequently used connected lagoons (habitat with the highest fish abundance) and abandoned the areas during floods, suggesting that they were able to find high quality patches for foraging. Cocoi Herons (Ardea cocoi),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wading birds; Ciconiiformes; Prey availability; Floodplain; Paraná river.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000200025

Abundance of cladocerans in the littoral regions of two environments of the Upper Paraná River floodplain, Mato Grosso do Sul, Brazil
Provedor de dados: 57
Autores: ROSSA,D. C.; LANSAC-TÔHA,F. A.; BONECKER,C. C.; VELHO,L. F. M.
The abundance of cladocerans recorded in plankton samples from the littoral regions of two enviroments (Baía River and Guaraná lake), the Upper Paraná River floodplain and some limnological variables important in controlling their abundance were investigated at three sites in the lake and two in the river, from March/93 to January/94. Abundance was highest in the lake, chiefly during high water. Bosminidae dominated in both environments and hydrological periods (high and low water). Chydoridae were more important in the lake, and Sididae in the river. A higher number of Pearson's correlations significative (p &lt; 0.03) between the densities of the ten most important species and the limnological variables was observed in the river. This suggests that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cladocerans; Littoral; Floodplain; Tropical.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000100007

Loss of weight and concentration of carbon, nitrogen, and phosphorus during decomposition of Eichhornia azurea in the floodplain of the upper Paraná river, Brazil
Provedor de dados: 57
Autores: PAGIORO,T. A.; THOMAZ,S. M.
Leaf packs of the aquatic macrophyte Eichhornia azurea were used to experimentally evaluate changes in mass, carbon, nitrogen, and phosphorus concentrations, and C:N ratios during initial stages of decomposition in two different environments, the Paraná River and Garças Lake. Analysis of weight loss showed relatively slow decomposition rates in both environments (0.0047 d-1 and 0.0048 d-1 respectively). Over a 45-day period we observed significant changes (p &lt; 0.05) in concentrations of carbon, nitrogen, and phosphorus, but only carbon differed between the environments (F = 10.479; p = 0.03). Therefore we concluded that detritus behaved similarly during decomposition, since intrinsic characteristics of the environments affected only the carbon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eichhornia azurea; Decomposition; Floodplain; Paraná river.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081998000400007

Morphological description of the developmental stages of Parauchenipterus galeatus (Linnaeus, 1766) (Siluriformes, Auchenipteridae) on the floodplain of the upper Paraná River
Provedor de dados: 57
Autores: SANCHES,P. V.; NAKATANI,K.; BIALETZKI,A.
We provide morphological and morphometric descriptions of the developmental stages of Parauchenipterus galeatus, from the floodplain of the Upper Paraná River. Specimens were obtained by induced spawning. The species has large adhesive eggs with a double membrane. The incubation period is long, 65 hours at 27°C. The larvae are well developed at hatching, with relatively rapid larval development. Analysis of the morphometric data showed that the body parts of P. galeatus grow proportionately.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Morphological development; Parauchenipterus galeatus; Larvae and juveniles; Floodplain; Paraná River.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000300007

Microbial respiration and chemical composition of different sediment fractions in waterbodies of the upper Paraná River floodplain, Brazil
Provedor de dados: 57
Autores: THOMAZ,S. M.; PEREIRA,G.; PAGIORO,T. A.
Four size fractions of the sediment of six environments of the upper Paraná River floodplain were analyzed for carbon, nitrogen, and phosphorus contents and microbial respiration (oxygen consumption). Particle size did not affect nitrogen and phosphorus content or microbial activity, but did affect carbon content (F = 4.274, df = 3; 20, p = 0.020). The carbon concentration of ultra-fine particles was significantly lower than that of other sizes of sediment particles. Microbial respiration values were well predicted by sediment chemical composition, as shown by multiple regression (microbial respiration = -0.39 - 0.210C + 0.108N + 0.796P; F = 7.0495, p = 0.0022). However, phosphorus was the element which best explained the microbial respiration (partial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microbial respiration; Nutrient cycling; Floodplain; Sediment fractions; Paraná River.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000200010

Large scale distribution of bacterial communities in the upper Paraná River floodplain
Provedor de dados: 58
Autores: Chiaramonte,Josiane Barros; Roberto,Maria do Carmo; Pagioro,Thomaz Aurélio.
A bacterial community has a central role in nutrient cycle in aquatic habitats. Therefore, it is important to analyze how this community is distributed throughout different locations. Thirty-six different sites in the upper Paraná River floodplain were surveyed to determine the influence of environmental variable in bacterial community composition. The sites are classified as rivers, channels, and floodplain lakes connected or unconnected to the main river channel. The bacterial community structure was analyzed by fluorescent in situ hybridization (FISH) technique, based on frequency of the main domains Bacteria and Archaea, and subdivisions of the phylum Proteobacteria (Alpha-proteobacteria, Beta-proteobacteria, Gamma-proteobacteria) and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterioplankton distribution; Floodplain; Fluorescent in situ hybridization.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000400009

Bacterioplankton features and its relations with doc characteristics and other limnological variables in Paraná river floodplain environments (PR/MS-Brazil)
Provedor de dados: 58
Autores: Teixeira,Mariana Carolina; Santana,Natália Fernanda; Azevedo,Júlio César Rodrigues de; Pagioro,Thomaz Aurélio.
Since the introduction of the Microbial Loop concept, many studies aimed to explain the role of bacterioplankton and dissolved organic carbon (DOC) in aquatic ecosystems. Paraná River floodplain system is a very complex environment where these subjects were little explored. The aim of this work was to characterize bacterial community in terms of density, biomass and biovolume in some water bodies of this floodplain and to verify its temporal variation and its relation with some limnological variables, including some indicators of DOC quality, obtained through Ultraviolet-visible (UV-VIS) and fluorescence spectroscopic analysis. Bacterial density, biomass and biovolume are similar to those from other freshwater environments and both density and biomass were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: DOC; Spectroscopy; Bacterioplankton; Floodplain.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000300008