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Registros recuperados: 84
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A high prevalence of human papillomavirus 16 and 18 co-infections in cervical biopsies from southern Brazil BJM
Jesus,Sheile Pinheiro de; Costa,Ana Carla Marques da; Barcellos,Regina Bones; Medeiros,Rubia Marília de; Silva,Cláudia Maria Dornelles da; Rossetti,Maria Lucia.
ABSTRACT HPV types 16 and 18 were studied in paraffin-fixed cervical biopsy collected in southern Brazil. HPV 16, HPV 18 and co-infection HPV 16/18 were identified in 10/57 (17.5%), 4/57 (7%) and in 43/57 (75.4%) samples, respectively. Southern Brazil has one of the highest prevalence rates of HPV 16/18 reported.
Tipo: Info:eu-repo/semantics/other Palavras-chave: HPV 16; HPV 18; Cervical biopsy; Southern Brazil.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500220
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A new species of Microglanis (Siluriformes: Pseudopimelodidae) from the rio Uruguay drainage, Brazil Neotropical Ichthyology
Bertaco,Vinicius A.; Cardoso,Alexandre R..
A new pseudopimelodid catfish, Microglanis malabarbai, is described from the rio Ijuí drainage, tributary of the middle rio Uruguay, Rio Grande do Sul, Brazil. The new species is distinguished from all other Microglanis species by the caudal fin color pattern, almost completely black, with a narrow vertical white band across central portions of the caudal-fin rays. Furthermore, it is distinguished from M. cottoides and M. eurystoma, both from rio Uruguay drainage, by head length, maxillary barbel length, internareal distance, and number of lateral-line pores, and from M. cibelae from the coastal drainages of northern Rio Grande do Sul and southern Santa Catarina states, by head length, maxillary barbel length, and body width. A key is presented for the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Neotropical; Taxonomy; M. eurystoma; M. cibelae; M. cottoides; Rio Ijuí; Southern Brazil.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000100002
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A new species of Stratiodrilus (Polychaeta, Histriobdellidae) from freshwater crayfishes of southern Brazil Iheringia, Sér. Zool.
Amato,J. F. R..
A new species of polychaete, Stratiodrilus vilae, epizoic on Parastacus brasiliensis (von Martens, 1869) and P. defossus Faxon, 1898, is described from the State of Rio Grande do Sul, southern Brazil. The new species has one pair of long, anal, conical ventral lobes, one on each side of the anus, claspers in the males, and one pair of tubercles in each of the posterior locomotor appendages; and the jaw apparatus not reaching the limit between the head and the first segment.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Histriobdellidae; Stratiodrilus; Parastacidae; Parastacus; Southern Brazil.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000100004
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A synopsis of Galianthe (Rubiaceae) in Rio Grande do Sul, Southern Brazil, and a new endemic species from Serra Geral Acta Botanica
Florentín,Javier Elías; Florentin,Mariela Nuñez; Cabral,Elsa Leonor.
ABSTRACT Thirteen species of the genus Galianthe have been recorded for state of Rio Grande do Sul, Brazil. The species are distributed among seven biomes, one of which contains all thirteen taxa-Subtropical Seasonal Forest. Herein a new endemic species, G. riograndensis J. Florentín & E.L. Cabral, is described, illustrated and differentiated from all other species of the genus by having 3-4 verticillate leaves and a long bifid style. In addition, the pollen grain morphology and the seed micromorphology of the new species are described and illustrated, and the conservation status assessed according to IUCN criteria. Moreover, G. chodatiana is recorded for the first time from the state, and a lectotype for G. equisetoides is designated. Most of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Galianthe; Rubioideae; Southern Brazil; Spermacoceae; Taxonomy.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000400619
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Association between human papillomavirus (HPV) DNA and micronuclei in normal cervical cytology Genet. Mol. Biol.
Cassel,Ana Paula Rebelo; Barcellos,Regina Bones; Silva,Cláudia Maria Dornelles da; Almeida,Sabrina Esteves de Matos; Rossetti,Maria Lucia Rosa.
The aim of the present study was to investigate the association between HPV-DNA and micronucleus (MN) frequency in women with normal cervical cytology. A total of 158 normal cervical smears were analyzed cytologically. The HPV genome was amplified using the GP5+/bioGP6+ consensus primers. HPV-DNA of high-risk types 16, 18, 31, 33, 39, 45 and 59 were also investigated. Of the 158 samples, 20 (12.7%) and 47 (29.7%) were positive for HPV-DNA and MN, respectively. Evidence for MN was found in 11 out of 20 (55%) HPV-DNA positive samples and in 36 out of 138 (26.1%) HPV-DNA negative ones. MN presence was significantly higher in HPV-DNA positive samples (p = 0.016). On the other hand, the absence of MN observed in a considerable number of HPV-DNA negative samples...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Human papillomavirus; Micronucleus; Cytology; High-risk HPV; Southern Brazil.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572014000300007
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Association of CYP7A1 -278A>C polymorphism and the response of plasma triglyceride after dietary intervention in dyslipidemic patients BJMBR
Barcelos,A.L.V.; Chies,R.; Almeida,S.E.M.; Fiegenbaum,M.; Schweigert,I.D.; Chula,F.G.L.; Rossetti,M.L.; Silva,C.M.D..
We investigated the effect of the -278A>C polymorphism in the CYP7A1 gene on the response of plasma lipids to a reduced-fat diet for 6 to 8 weeks in a group of 82 dyslipidemic males with a mean age of 46.0 ± 11.7 years. Individuals who presented at least one high alteration in total cholesterol, low-density lipoprotein cholesterol or triglyceride values were considered to be dyslipidemic. Exclusion criteria were secondary dyslipidemia due to diabetes mellitus, renal, liver, or thyroid disease. None of the subjects were using lipid-lowering medication. Baseline and follow-up lipid concentrations were measured. The genotypes were determined by the digestion of PCR products with the BsaI restriction endonuclease. There were statistically significant...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dyslipidemia; Polymorphisms; Diet; CYP7A1; Southern Brazil.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000600003
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Beach ridges, foredunes or transgressive dunefields? Definitions and an examination of the Torres to Tramandaí barrier system, Southern Brazil Anais da ABC (AABC)
Hesp,Patrick A.; Dillenburg,Sergio R.; Barboza,Eduardo G.; Tomazelli,Luiz J.; Ayup-Zouain,Ricardo N.; Esteves,Luciana S.; Gruber,Nelson L.S.; Toldo-Jr.,Elirio E.; Tabajara,Luiz L.C. de A.; Clerot,Luiz C.P..
Many prograded barriers and some dunefields in theworld have been termed 'beach ridge' plains, but the actual genesis of the 'ridges' is often unknown. Use of the terms, berms, beach ridges and foredunes is also confusing in the literature because their definitions are highly variable and are commonly used interchangeably. Thus, the formation and definition of sand berms, beach ridges and foredunes is briefly reviewed. Beach ridges are re-defined as entirely wave formed deposits which are most commonly formed during high wave conditions and/or elevated water levels (e.g. storm surges). Foredunes are formed by aeolian sand deposition in vegetation on the backshore. Some dunefields in Brazil have been called beach ridge plains when they are, in fact,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Beach ridges; Coastal barriers; Transgressive dunefields; Holocene; Southern Brazil.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652005000300010
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Biologia reprodutiva de Delomys dorsalis (Hensel, 1872) - Rodentia, Sigmodontinae - em área de floresta ombrófila mista, Rio Grande do Sul, Brasil Mastozool. neotrop.
Cademartori,Cristina V.; Fabián,Marta E.; Manegheti,João O..
Delomys dorsalis is restricted to the wet tropical and subtropical forests of southern and southeastern Brazil and northeastern Argentina . The reproductive cycle of this species was studied by the histological examination of the reproductive tracts of animals caught in an area of mixed forest with conifers (29º 23' S, 50º 23' W), in southern Brazil , and from observations on a laboratory group of individuals. Fourteen expeditions were carried out from February 1997 to April 1998, during approximately 3 nights, using 140 live traps set on the ground and on branches between 1.5 and 2.0 m high. Reproductively active individuals were observed year round, although winter was marked by a reduction in breeding activity resulting from recruitment. Females showed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Delomys dorsalis; Mixed forest with conifers; Reproduction; Sigmodontinae; Southern Brazil.
Ano: 2005 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832005000200002
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Carbon and water in upper montane soils and their influences on vegetation in Southern Brazil. Repositório Alice
SCHEER, M. B.; CURCIO, G. R.; RODERJAN, C. V..
Considering the many environmental functions of the upper montane soils, the aims of this study were (1) to verify if the soils of uppermontane forests and grasslands of Caratuva Peak (1850ma.s.l.) have similar characteristics to those found in other highlands in southern and southeastern Brazil; (2) to reinforce the geomorphological and pedological factors that impose the establishment of each type of vegetation in these highlands; and (3) to estimate potential soil carbon stocks and potential soil water retention. Folic and haplic histosols were found in the grasslands, and dystrophic regosols were found in the forests. The soils were dystrophic, extremely acidic, and saturated with Al and total organic carbon. In contrast to the grasslands, the upper...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Solos altomontana; Carbono; Água; Vegetação; Região Sudeste; Brasil; Upper montane soils; Carbon; Water; Vegetation; Southern Brazil.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/968423
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Characterization of the weed flora in rice areas under distinct cropping systems and herbicide managements. Repositório Alice
CONCENCO, G.; ANDRES, A.; SCHREIBER, F.; SILVA, A. F.; MOISINHO, I. S.; CORADINI, M. C..
bitstream/item/201749/1/CONCENCO-RPD-Charact-WeedFlora.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Semi-ecological rice; Southern Brazil; Chemical control; Phytosociology.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112072
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Characterization of the Weed Flora in Rice Areas under Distinct Cropping Systems and Herbicide Managements Planta Daninha
CONCENÇO,G.; ANDRES,A.; SCHREIBER,F.; SILVA,A.F.; MOISINHO,I.S.; CORADINI,M.C..
ABSTRACT: The aim of this study was to evaluate the occurrence of weeds in flooded rice areas, as a function of planting system and herbicide programmes in the previous cropping year. The experiment was installed in field conditions, in randomized complete blocks design, arranged in factorial scheme 3 x 2, with eight replications. In factor A, treatments consisted on conventional tillage, minimum tillage and no till cropping systems, coupled to the application (traditional control) or not (semi-ecological system) of herbicides (Factor B). One year after rice cultivation, preceding the planting of the next cropping season, phytosociological evaluations of the weed communities present in the treatments were carried out. We assessed the overall infestation...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chemical control; Semi-ecological rice; Phytosociology; Southern Brazil.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100286
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Chromosome studies in some Stevia. Cav. (Compositae) species from Southern Brazil Braz. J. Genet.
Frederico,Adriana P.; Ruas,Paulo M.; Marin-Morales,Maria A.; Ruas,Claudete F.; Nakajima,Jimi N..
Karyotypes of six species of the genus Stevia from Southern Brazil were studied, utilizing root tip metaphases. All species were diploid with 2n = 22 chromosomes. It was possible to identify each species by chromosome morphology. The basic chromosome number for Brazilian species of Stevia is X = 11. This number is also found in almost all South American species. We suggest that in Stevia there is an evolutionary trend toward chromosomal rearrangement, caused mainly by pericentric inversions. It was found that, in addition to aneuploidy and polyploidy, chromosomal rearrangements are common in the tribe Eupatorieae.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosome; Stevia. Cav.; Southern Brazil.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400013
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Composição, estrutura e relações florísticas do componente arbóreo de uma floresta estacional no Rio Grande do Sul, Brasil Rev. Bras. Bot.
JARENKOW,JOÃO ANDRÉ; WAECHTER,JORGE LUIZ.
A composição específica de florestas estacionais no Rio Grande do Sul é fortemente influenciada por dois contingentes florísticos diferentes, um coincidente com as florestas atlânticas do leste e outro com as florestas paranaense-uruguaias do oeste. Um levantamento fitossociológico de uma floresta central sul-rio-grandense foi realizado para detectar a estrutura comunitária do componente arbóreo e a participação local dos diferentes contingentes florísticos. Todas as árvores com DAP > ou = 5 cm foram registradas em uma área de 1 ha, subdividida em 100 unidades amostrais de 10 x 10 m. As espécies amostradas foram classificadas como amplas ou restritas, segundo suas distribuições geográficas, considerando as afinidades florísticas leste ou oeste. A...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Floristics; Seasonal forest; Phytosociology; Phytogeography; Southern Brazil.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000300004
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Composição florística e fitossociologia do componente arbóreo das florestas ciliares do rio Iapó, na bacia do rio Tibagi, Tibagi, PR Rev. Bras. Bot.
DIAS,MARILDA CARVALHO; VIEIRA,ANA ODETE SANTOS; NAKAJIMA,JIMI NAOKI; PIMENTA,JOSÉ ANTONIO; LOBO,PATRÍCIA CARNEIRO.
Foram realizados estudos da composição florística e fitossociologia de 1 ha de floresta ciliar do rio Iapó (bacia do rio Tibagi), município de Tibagi, PR (24º31’S e 50º25’W) utilizando-se 100 parcelas contíguas de 10 x 10 m, tendo-se como critério de inclusão um diâmetro à altura do peito (DAP) mínimo de 5 cm. Para cada espécie amostrada foram estimados parâmetros relativos à freqüência, densidade e dominância, além do índice do valor de importância (IVI) e índice do valor de cobertura (IVC). O levantamento resultou em 1594 indivíduos pertencentes a 127 espécies, 81 gêneros e 43 famílias. As espécies mais importantes em IVI e IVC foram Eugenia blastantha, Faramea porophylla, Casearia obliqua, Nectandra grandiflora, Sebastiania commersoniana, Casearia...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytosociology; Riparian forest; Tibagi river basin; Southern Brazil.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041998000200011
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Composition and diversity of Ephemeroptera (Insecta) nymph communities in the middle section of the Jacuí River and some tributaries, southern Brazil Iheringia, Sér. Zool.
Siegloch,Ana Emilia; Froehlich,Claudio Gilberto; Kotzian,Carla B..
The taxonomic composition and diversity of assemblages of Ephemeroptera nymphs of four lotic environments in the central region of State of Rio Grande do Sul, a subtropical area in southern Brazil, were evaluated. Samplings were done monthly, with a Surber sampler, from June 2001 to May 2002, in the Jacuí River and three of its tributaries. The total number of nymphs collected in the four sampling sites was 11,007 in five families and 19 genera, of these, 11 are new records for the State. The highest diversity occurred in Point 4 (H'=2.41) and the lowest in Point 2 (H'=1.69). Point 4 had the highest environmental stability, conservation of the riparian vegetation and the lowest anthropic impact, while Point 2 presented a large environmental simplification...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ephemeroptera; Nymphs; Taxonomic composition; Diversity; Southern Brazil.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000400002
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Copper and zinc fractions in the profile of an Inceptisol cultivated with apple in southern Brazil. Repositório Alice
BRUNETTO, G.; BENEDET, L.; AMBROSINI, V. G.; COMIN, J. J.; MELO, G. W. B. de; SANTOS, M. A. dos; LOURENZI, C. R.; LOSS, A.; BELLI FILHO, P.; SCHMITT, D. E.; COUTO, R..
The present study aimed to evaluate the accumulation and distribution of Cu and Zn fractions in the profile of an Inceptisol by application of fungicides with a previous history of apple cultivation in southern Brazil. Stratified soil samples (0.0 ? 0.025 m, 0.025 ?0.050 m, 0.05 ? 0.10 m, 0.10 ? 0.15 m, 0.15 ? 0.20 m and 0.20 ? 0.40 m depth) were collected in two apple orchards (8 years old and 18 years old), and in a native pasture area adjacent to the orchards. The soil was subjected to analysis of physical and chemical properties and to chemical fractionation of Cu and Zn. The fractions of soluble, exchangeable, organic, residual and total Cu and Zn accumulated in the topsoil (0.0 ? 0.025 m) of the orchards, being higher in the orchard cultivated for 18...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Environmental contamination; Southern Brazil; Malus Domestica; Trace elements; Toxicity; Copper; Zinc; Apples.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103351
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Coscinodiscophyceae and Fragilariophyceae (Diatomeae) in the Iguaçu River, Paraná, Brazil Acta Botanica
Nardelli,Margaret Seghetto; Bueno,Norma Catarina; Ludwig,Thelma Alvim Veiga; Tremarin,Priscila Izabel; Bartozek,Elaine Cristina Rodrigues.
A taxonomic survey was carried out on Coscinodiscophyceae and Fragilariophyceae found in the Iguaçu River catchment area within Iguaçu National Park, in the state of Paraná, Brazil. Between September 2007 and August 2008, we collected 24 samples from two stations on the Iguaçu River, upstream and downstream of the falls. We identified 37 taxa, including 22 specific and infraspecific taxa of Coscinodiscophyceae, together with 15 specific and infraspecific taxa of Fragilariophyceae. Melosira ruttneri Hustedt and Fragilaria alpestris Krasske ex Hustedt represent new records for Brazil.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diatoms; Lotic systems; Southern Brazil; Taxonomy.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000100013
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Cyanoaggregatum brasiliense gen. et sp. nov., a new chroococcal Cyanobacteria from Southern Brazil Rev. Bras. Bot.
Werner,Vera Regina; Sant'anna,Célia Leite; Azevedo,Maria Teresa de Paiva.
The paper proposed Cyanoaggregatum brasiliense, a new genus and species from the plankton of a subtropical brackish coastal lagoon from Rio Grande do Sul State, South Brazil. It differs from all other members of Chroococcales by its characteristic arrangement of cells in irregular groups distributed in a single, flat or slightly curved layer, on irregular rows, slightly distant from each other, forming a mosaic-like pattern slightly below the surface of the mucilaginous colonial envelope. The cell division in one plane perpendicular to the long axis and the lack of pseudo-filaments indicate its classification in the family Synechococcaceae, sub-family Aphanothecoideae. The general characteristics, the diagnostic criteria and the taxonomic position are...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coastal lagoon; Cyanoaggregatum brasiliense; Cyanobacteria; New genus and species; Southern Brazil.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000300012
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Dinâmica reprodutiva de Oligosarcus jenynsii e O. robustus (Characiformes, Characidae) na lagoa Fortaleza, Rio Grande do Sul, Brasil Iheringia, Sér. Zool.
Nunes,Daniela M.; Pellanda,Mateus; Hartz,Sandra Maria.
Oligosarcus jenynsii (Günther, 1864) and O. robustus Menezes, 1969 are fish species distributed in Rio Grande do Sul, Brazil, Uruguay, and northern Argentina. The reproductive period and recruitment, sex ratio, absolute and relative fecundity, and body length at first gonadal maturation of the two carnivorous species from Fortaleza Lagoon were analized. The specimens were sampled monthly, from May 2000 to April 2001, with fishing effort of 24 hours/month, using stationary gillnets of different mesh sizes and seine net (three samples per edge). The records of each individual included total length, total weight, gonad weight, sex and gonadal maturity stage. The reproductive period of both O. jenynsii and O. robustus ranges from May/June to November/December,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oligosarcus; Reproduction; Characidae; Southern Brazil.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000100001
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Distribuição sazonal e reprodução de Neocorbicula limosa (Maton) (Bivalvia, Corbiculidae) no Lago Guaíba, Rio Grande do Sul, Brasil Zoologia
Focht,Teimo; Veitenheimer-Mendes,Inga L..
Neocorbicula limosa (Maton, 1811) is the only species of that South American genus that occurs in the hydrographic basins of Rio Grande do Sul State, Brazil. Seasonal quantitative collections between 1995 and 1996 in the lake Guaiba were accomplished, with the aim to know the reproductive dynamics and environmental preferences of populations of N. limosa. A substratum constituted by medium to coarse sands at an 'average depth around 2m shown to be favorable to installation of population of N. limosa. The largest population density (2.496 ind./m²) was registered in summer. Embryos at various development phases were registered inside individuals. The shell sizes of these individuals started from 8mm in length. The embryo's size could reach ¼ of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bivalvia; Corbiculidae; Neocorbicula limosa; Guaíba Lake; Southern Brazil; Seasonal Observation.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000100002
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