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Structural changes in Psidium guajava 'Paluma' leaves exposed to tropospheric ozone Acta Botanica
Tresmondi,Fernanda; Alves,Edenise Segala.
Psidium guajava 'Paluma' has being tested as an ozone (O3) bioindicator and responds with pigmentation between the veins on the adaxial surface, due to the accumulation of phenolic compounds. These compounds act as non-enzymatic antioxidants that neutralize reactive oxygen species (ROS), formed from O3. This study aimed to evaluate the leaf structure of plants with and without visible symptoms and to establish these symptoms at the cellular level. Beside this we also aimed to detect structural changes that can minimize the effects of the O3 on the plant. The accumulation of phenolic substances, stomatal density and structural changes in P. guajava 'Paluma' leaf tissues exposed during the four seasons of the year were evaluated. The study was conducted at...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioindicator; Phenols; Leaf anatomy; Oxidative stress; Stomatal density.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062011000300005
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Cytogenotoxicity of rice crop water after application of the tricyclazole fungicide Anais da ABC (AABC)
WANDSCHEER,ALANA C.D.; MARCHESAN,ENIO; TEDESCO,SOLANGE B.; FRESCURA,VIVIANE DAL-SOUTO; SOARES,CAMILLE F.; LONDERO,GUILHERME P.; TELÓ,GUSTAVO M.; HANSEL,DÂMARIS S.S..
ABSTRACT Tricyclazole is currently one of the fungicides recommended for the treatment of diseases in irrigated rice. However, there is relatively little information on its cytotoxic and genotoxic potential. The objective of this study was to evaluate the cytotoxicity and genotoxicity of rice crop water after apllication of the tricyclazole fungicide through the Allium cepa L. test. The rice crop water samplings were collected before and 1, 15 and 30 days after application of the fungicide in rice plant shoots. The Allium cepa roots were placed in contact with the rice crop water to check for possible chromosomal abnormalities and mitotic index of the bioindicators meristematic cells. The data obtained by the Allium cepa test indicates that the application...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioindicator; Chromosomal abnormalities; Mitotic index; Pesticide; Irrigated rice.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301251
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Diagnostic and prognostic characteristics of phytotoxicity caused by fluoride on Spondias dulcis Forst. F. (Anacardiaceae) Anais da ABC (AABC)
Sant'Anna-Santos,Bruno F.; Azevedo,Aristéa A.; Silva,Luzimar C.; Oliva,Marco A..
The goal of this study was to determine the symptoms and microscopic damage caused by fluoride on Spondias dulcis, a fluoride-sensitive species. The plants were exposed to simulated fog with fluoride (0, 5, 10, 15 and 20 mg L-1) for 20 min daily during four consecutive days. Samples from leaflets without any apparent fluoride injury were collected to microscopic analysis. The percentage of necrosed leaf area was measured, and the level of pollutant in the dry matter from the basal and apical portions of the plant was determined. The necroses began 24 h after the first simulation mainly from the base of the leaflets. A higher level of necrosis was observed at the apical portion of the plants, a region of higher fluoride accumulation. The damage on the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leaf anatomy; Bioindicator; Necrosis; Pollution; Symptomatology.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000300011
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Morphometric differences of Microgramma squamulosa (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air quality Anais da ABC (AABC)
ROCHA,LEDYANE D.; COSTA,GUSTAVO M. DA; GEHLEN,GÜNTHER; DROSTE,ANNETTE; SCHMITT,JAIRO L..
Plants growing in environments with different atmospheric conditions may present changes in the morphometric parameters of their leaves. Microgramma squamulosa (Kaulf.) de la Sota is a neotropical epiphytic fern found in impacted environments. The aims of this study were to quantitatively compare structural characteristics of leaves in areas with different air quality conditions, and to identify morphometric parameters that are potential indicators of the effects of pollution on these plants. Fertile and sterile leaves growing on isolated trees were collected from an urban (Estância Velha) and a rural (Novo Hamburgo) environment, in Rio Grande do Sul, Brazil. For each leaf type, macroscopic and microscopic analyses were performed on 192 samples collected...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atmospheric pollution; Bioindicator; Epiphytism; Fern; Leaf anatomy.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301137
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Cricket singing means rain: semiotic meaning of insects in the district of Pedra Branca, Bahia State, northeastern Brazil Anais da ABC (AABC)
Costa Neto,Eraldo M..
This paper deals with the semiotic meanings which are given both to the appearance and/or behavior of insect species according to the ethnoentomological knowledge of the inhabitants of the village of Pedra Branca, Bahia State, Brazil. Data were collected from February to May 2001 by performing open-ended, recorded interviews with nine men and twenty-five women, whose ages ranged from 19 to 82 years old. Data were analyzed by using the union model, which involves considering all available information on the surveyed subject. Twelve kinds of insects were associated with both beneficial and harmful events, as well as with the indication of changing weather. The way local people perceive and interpret the appearance and/or behavior of certain species of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bioindicator; Ethnoentomology; Folk knowledge; Semiotic meaning.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652006000100007
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Structure of potamoplankton along a gradient of preservation of riparian vegetation in subtropical streams Anais da ABC (AABC)
PERESIN,DENISE; TORGAN,LEZILDA C.; SCHULZ,UWE H.; CROSSETTI,LUCIANE O..
Water quality in lotic and lentic systems is greatly influenced by the land use in the adjacent areas. This study was conducted in order to assess whether different degrees of preservation of riparian forest (from well preserved with 30m wide up to degraded with < 5 m wide) influence potamoplankton community structure. The study was conducted in three streams in the upper region of the Rio dos Sinos basin, at four sampling sites, with different width of the forest. Samplings were gathered for abiotic and biological analysis in winter (August 2010) and summer (January/February 2011). The analysis of environmental and biotic variables indicated that seasonality was the main determinant of biomass patterns, regardless of the width of riparian vegetation....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Riparian forest; Water quality; Stream; Bioindicator.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200841
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Relationship between space distribution of the benthic macroinvertebrates community and trophic state in a Neotropical reservoir (Itupararanga, Brazil) Biota Neotropica
Beghelli,Frederico Guilherme de Souza; Santos,André Cordeiro Alves dos; Urso-Guimarães,Maria Virgínia; Calijuri,Maria do Carmo.
The purpose of this work was to verify the benthic macroinvertebrates community responses through environmental factors along a headwater tropical reservoir. Samplings were taken with a Van-Veen grab along the reservoir in littoral and profundal regions and in the headwater, next to the dam and the middle of the reservoir. Samples were taken during both wet and dry seasons. Dissolved oxygen concentrations, electric conductivity, temperature and pH near the sediment have been performed in situ, at every sampling station by using a multiprobe and Secchi disc. Total water phosphorus and chlorophyll a concentrations were analyzed to determine the trophic state index. Sediment's organic matter, total phosphorus, nitrogen concentrations and granulometric...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Benthos; Chironomidae; Limnology; Bioindicator; Water quality.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400012
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Thermocyclops decipiens (Kiefer, 1929) (Copepoda, Cyclopoida) as indicator of water quality in the State of Minas Gerais, Brazil BABT
Landa,Giovanni Guimarães; Barbosa,Francisco Antonio Rodrigues; Rietzler,Arnola Cecilia; Maia-Barbosa,Paulina Maria.
The aim of this work was to study the possible utilization of Thermocyclops decipiens as indicator of the trophic degree and water quality of some watersheds of the state of Minas Gerais. From the beginning of the decade of 90, T. decipiens was recorded in several water collections of the state, including the basins of the rivers Paranaíba, São Francisco, Doce and Grande, within environments mainly of meso and eutrophics characteristics. Of the 28 places of occurrence of the species and according to the water quality index (WQI) used by Environmental Foundation of Minas Gerais (FEAM), 7 of these environments presented WQI good, 16 medium, 4 bad and one very bad. This classification corroborated the hypothesis that T. decipiens could be used as indicator...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Thermocyclops decipiens; Water quality; Bioindicator.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000400015
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Copper Induced Lysosomal Membrane Destabilisation in Haemolymph Cells of Mediterranean Green Crab (Carcinus aestuarii, Nardo, 1847) from the Narta Lagoon (Albania) BABT
Aliko,Valbona; Hajdaraj,Gerta; Caci,Atenisa; Faggio,Caterina.
ABSTRACTDestabilisation of blood cell lysosomes in Mediterranean green crabCarcinus aestuarii was investigated using Neutral Red Retention Assay (NRRA). Crabs collected in Narta Lagoon, Vlora (Albania) during May 2014 were exposed in the laboratory to sub-lethal, environmentally realistic concentrations of copper. Neutral Red Retention Time (NRRT) and glucose concentration in haemolymph of animals were measured. The mean NRRT showed a significant reduction for the animals of the treatment group compared to the control one (from 118.6 ± 28.4 to 36.4 ± 10.48 min, p<0.05), indicating damage of lysosomal membrane. Haemolymph glucose concentration was significantly higher in the treatment group (from 37.8 ± 2.7 to 137.8.4 ± 16.2 mg/dL, p<0.05) than in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcinus aestuarii; Neutral red retention assay; Lysosomal membrane destabilization; Bioindicator; Copper.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000500750
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Honey as a bioindicator of arsenic contamination due to volcanic and mining activities in Chile Chilean J. Agric. Res.
Bastías,José M; Jambon,Philippe; Muñoz,Ociel; Manquián,Nimia; Bahamonde,Patricia; Neira,Miguel.
The content of heavy metals in honey is indicative of natural or anthropogenic pollution and has therefore been proposed as a feasible bioindicator for arsenic contamination in different regions of Chile. Total arsenic (t-As) and inorganic As (i-As) concentrations were determined in 227 samples of honey harvested during the years 2007, 2008, and 2009 in the areas of San Pedro de Atacama, Atacama, Chiloé, and Futaleufú, with the last town located 156 km from the Chaitén Volcano (latest eruption in 2008). These analyses were conducted using an atomic absorption spectrophotometer coupled with a hydride generator. In the honey samples, the concentrations of t-As ranged from 2.2 to 171.9 &#956;g kg-1, and the i-As concentrations ranged from none detected...
Tipo: Journal article Palavras-chave: Honey; Bioindicator; Total arsenic; Inorganic arsenic; Pollution.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000200010
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Mirmecofauna (Hymenoptera, Formicidae) de Duas Marismas do Estuário da Lagoa dos Patos, RS: Diversidade, Flutuação de Abundância e Similaridade como Indicadores de Conservação Ciências Agrárias
Bolico, Cristiane Ferras; Oliveira, Eduardo Alves; Gantes, Marcel Lucas; Dumont, Luiz Felipe Cestari; Carrasco, Daiane Silveira; D´Incao, Fernando.
O trabalho objetiva inventariar a mirmecofauna de duas marismas distintas e estimar a diversidade, similaridade, bem como relacionar a temperatura, umidade relativa do ar e a pluviosidade aos padrões de flutuação de abundância desses insetos. Além disso, foram reconhecidas as espécies que atuam como indicadores ambientais. O estudo foi realizado em duas marismas localizadas no Estuário da Laguna Lagoa dos Patos, Ilha da Torotama e Molhe Oeste da Barra. Foram capturados 853 formicídeos, distribuídos em 19 gêneros. As duas marismas apresentaram índices de diversidade e abundância semelhantes, Ds = 0,958 e I = 0,042 na Ilha da Torotama e Ds = 0,8889 e I = 0,111 no Molhe Oeste da Barra. As flutuações dos grupos de formicídeos coincidiram em ambas as áreas,...
Tipo: Article Palavras-chave: Bioindicador; Ecossistema Costeiro; Formigas; Insetos; Ants; Malaise; Bioindicator; Coastal Ecosystem; Insects.
Ano: 2012 URL: http://hdl.handle.net/2315/246
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Tillandsia recurvata L. as a bioindicator of sulfur atmospheric pollution Ecología austral
Graciano,Corina; Fernández,L V; Caldiz,D O.
Tillandsia recurvata L. is an epiphyte that absorbs nutrients from the air, so it could be used as a bioindicator of atmospheric sulfur pollution. In order to test this idea, Tillandsia recurvata samples were seasonally collected for two years at three sites of La Plata, Buenos Aires Province, Argentina, in a suburban park and in a rural area 60 km away from the city. Macro- and microscopic observations were carried out and chlorophyll and sulfur concentrations of the tissue were measured to evaluate if this epiphyte shows morphological or physiological damage in the most polluted sites or if it accumulates sulfur in the tissues when sulfur in the air increases. No micro- or macroscopic damage was observed, and chlorophyll content seemed not to be related...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tillandsia recurvata; Sulfur dioxide; Atmospheric pollution; Bioindicator.
Ano: 2003 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2003000100002
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Modeling trace metal accumulation in the mediterranean mussel, mytilus galloprovincialis ArchiMer
Casas, Stellio; Cossa, Daniel; Gonzalez, Jean-louis; Bacher, Cedric; Andral, Bruno.
Monitoring coastal contamination by trace metals pollution using mollusks bivalves as quantitative bioindicators is widely performed in many international biomonitoring programs. In this purpose, modeling metal dynamic in marine mussels is a reliable tool. It allows understanding the bioaccumulation process which results from the interactions between biological, chemical and environmental factors. To calibrate such a model, kinetic experiments on uptake and elimination were conducted on three Mediterranean sites chosen on the basis of their different nutritive and chemical characteristics.
Tipo: Text Palavras-chave: Growth; Heavy metals; Bioaccumulation; Mytilus galloprovincialis; Bioindicator.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/acte-370.pdf
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In situ kinetics of mercury bioaccumulation in mytilus galloprovincialis estimated by transplantation experiments ArchiMer
Casas, Stellio; Cossa, Daniel; Gonzalez, Jean-louis; Bacher, Cedric; Andral, Bruno.
Monitoring coastal contamination by trace metals pollution using mollusks bivalves as quantitative bioindicators is widely performed in many international biomonitoring programs. For this purpose, studying mercury dynamic in marine mussels is a reliable tool. In situ experiments on uptake and elimination kinetics were conducted in three Mediterranean sites, chosen on the basis of their contamination levels. Mussels were transplanted from a clean area to a highly contaminated one and then transferred back to a clean site. This approach makes it possible to define bioaccumulation factors and uptake and elimination rates consistently with the real environmental conditions.
Tipo: Text Palavras-chave: Transplantation; Heavy metals; Bioaccumulation; Mytilus galloprovincialis; Bioindicator.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/acte-369.pdf
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Le mercure, le cadmium et le plomb dans les eaux littorales libanaises: apports et suivi au moyen de bioindicateurs quantitatifs (éponges, bivalves et gastéropodes) ArchiMer
Nakhle, Khaled.
In 1975, the meeting for the protection of the Mediterranean Sea in Barcelona fixed several important objectives. One of them was the creation of National Observation Programs in order to evaluate the levels and tendencies of pollutants. Furthermore the MED-POL program has re-evaluated and developed these objectives. Lebanon has signed the Barcelona Convention and has been engaged in providing data about its coastal water quality. Unfortunately the Lebanese war, which also began in 1975, paralyzed the country for 15 years. Since 1990, successive governments in the country have fixed as an objective the reconstruction of the tourism sector. As a consequence, they became interested in the environmental problems. The studies carried out before or during the...
Tipo: Text Palavras-chave: Lebanon; Coastal water; D.g.t.; Transplant; Sponge; Patella; Brachidonte; Trace metal; Bioindicator; Liban; Eaux côtières; D.g.t.; Transplant; Eponge; Patelle; Brachidonte; Métal trace; Bioindicateur.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/these-83.pdf
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Modélisation de la bioaccumulation de métaux traces (Hg, Cd, Pb, Cu et Zn) chez la moule, Mytilus galloprovincialis, en milieu méditerranéen ArchiMer
Casas, Stellio.
Monitoring coastal contamination of trace metals using bivalve molluscs as quantitative bioindicators is widely used in many international monitoring programs. The bioaccumulation of metal within an organism results from the interaction between physiological (growth, loss of weight, absorption, accumulation), chemical (metal concentration, speciation, bioavailability) and environmental factors (temperature, SPM, chlorophyll). By utilizing the parameters above in this study, it appears that modeling metal dynamics in marine mussels is a reliable tool. The model allows understanding the bioaccumulation process which results from the interactions between biological, chemical and environmental factors. One of the objective of this study was to couple a...
Tipo: Text Palavras-chave: Biomonitoring; Dynamic Energy Budget; Model; Trace metals; Bioaccumulation; Mytilus galloprovincialis; Mussel; Bioindicator; Surveillance; Budget énergétique dynamique; Modèle; Métaux traces; Bioaccumulation; Mytilus galloprovincialis; Moule; Bioindicateur.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/these-356.pdf
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Brachidontes variabilis and Patella sp as quantitative biological indicators for cadmium, lead and mercury in the Lebanese coastal waters ArchiMer
Nakhle, Khaled; Cossa, Daniel; Khalaf, Ghaby; Beliaeff, Benoit.
The mussel, Brachidontes variabilis, and the limpet, Patella sp., were used as indicators to monitor cadmium, lead and mercury concentrations along the Lebanese coast. Studies were carried out in order to define the best strategy for assessing and minimizing the effects of size and physiological condition on the metal contents of the molluscs, and corrective models were constructed. Metal concentrations in surface water were measured to estimate bioconcentration factors (BCFs). The BCFs varied from 8.3 x 10(3) to 3.4 x 10(4), from 7.5 x 10(3) to 8.0 X 10(3) and from 3.0 x 10(4) to 3.2 x 10(4), for Cd, Pb and Hg, respectively. For limpets, BCFs varied from 1.7 x 10(4) to 7.4 x 10(4) for Cd, from 2.5 x 10(3) to 6 x 103 for Pb and remained fairly constant at...
Tipo: Text Palavras-chave: Lebanon; Mediterranean Sea; Bioconcentration factors; Patella sp; Brachidontes variabilis; Bioindicator; Trace metal.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1344.pdf
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Chironomidae assemblage structure in relation to organic enrichment of an aquatic environment Neotropical Entomology
Simião-Ferreira,Juliana; DeMarco Jr,Paulo; Mazão,Gustavo R; Carvalho,Adriana R.
In this study we determined the taxonomic diversity of larval Chironomidae upstream and downstream to discharges of the sewage treatment plant (STP) from Agro-industrial District of Anápolis, State of Goiás, Brazil. Additionally, we evaluated the use of the lognormal distribution as a measure of biotic integrity of this system. The Chironomidae communities were sampled in three sites, upstream and downstream of the discharge of the sewage treatment plant (STP). We fitted the truncate lognormal distribution based on a nonlinear regression of the datasets using least squares as loss function in an iterative quasi-Newton procedure. The total of 21,498 individuals were sampled, from 24 Chironomidae genera, Chironomus, Polypedilum, Rheotanytarsus e...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environment disturbance; Lognormal model; Bioindicator.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000400004
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Edge effects on the orchid-bee fauna (Hymenoptera: Apidae) at a large remnant of Atlantic Rain Forest in southeastern Brazil Neotropical Entomology
Nemésio,André; Silveira,Fernando A..
Male orchid bees were sampled with chemical baits monthly from July 1999 to April 2000 at six sites situated at different distances from the forest edge (0 to 4,000 m) at Parque Estadual do Rio Doce, the largest remnant of Atlantic Forest in the state of Minas Gerais, southeastern Brazil. The main goal of this study was to assess the abundance, richness, and the community structure of the orchid-bee fauna at different distances from the edge. In all, 1,183 males from 20 species were collected. Only minor and insignificant variation in richness and abundance were observed among the sites. Two dominant species, Euglossa analis Westwood (Hymenoptera: Apidae) and Eulaema cingulata (Fabricius) (Hymenoptera: Apidae), showed strongly opposing habitat...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Insecta; Euglossina; Bioindicator; Conservation.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2006000300004
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Application of rapid bioassessment protocols (RBP) for benthic macroinvertebrates in Brazil: comparison between sampling techniques and mesh sizes Neotropical Entomology
Buss,Daniel F.; Borges,Erika L..
This study is part of the effort to test and to establish Rapid Bioassessment Protocols (RBP) using benthic macroinvertebrates as indicators of the water quality of wadeable streams in south-east Brazil. We compared the cost-effectiveness of sampling devices frequently used in RBPs, Surber and Kick-net samplers, and of three mesh sizes (125, 250 and 500 µm). A total of 126,815 benthic macroinvertebrates were collected, representing 57 families. Samples collected with Kick method had significantly higher richness and BMWP scores in relation to Surber, but no significant increase in the effort, measured by the necessary time to process samples. No significant differences were found between samplers considering the cost/effectiveness ratio. Considering mesh...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental assessment; Aquatic insect; Freshwater ecology; Biomonitoring; Bioindicator.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000300007
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