scholarly journals Update on the current occurrence of Tursiops truncatus (Montagu, 1821) in Rio de Janeiro State

2017 ◽  
Vol 11 (1-2) ◽  
pp. 220-226 ◽  
Author(s):  
Lilian Lodi
Keyword(s):  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Rio De Janeiro ◽  
The State ◽  
Current State ◽  
Janeiro State

This note reviews and updates records of bottlenose dolphin in Rio de Janeiro State, combining unpublished data with previously published information to evaluate the current state of knowledge of the occurrence of this species in the state.

scholarly journals Movements of the bottlenose Dolphin (Tursiops truncatus) in the Rio de Janeiro State, Southeastern Brazil

2008 ◽  
Vol 8 (4) ◽  
pp. 206-209 ◽  
Author(s):  
Liliane Lodi ◽  
Leonardo Liberali Wedekin ◽  
Marcos Roberto Rossi-Santos ◽  
Milton César Marcondes
Keyword(s):  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Rio De Janeiro ◽  
Southeastern Brazil ◽  
Janeiro State

Aiming to verify the movements of the bottlenose dolphin (Tursiops truncatus) at Rio de Janeiro State coast, southeastern Brazil, we performed a photoidentification comparison between the catalogued individuals of the Cagarras Archipelago (23° 02' S and 43° 12' W) in 2004 and 2006 (n = 26) and the images obtained (n = 179) during the Southeastern Cetaceans Expedition, conducted during months of June and November of 2005. Eight individuals (three females and five dolphins of unknown gender) identified in the Cagarras Archipelago were resighted in the Grande Island (23° 21'S and 44° 15' W), about 100 km southwestwards from Cagarras Archipelago. The observed movements include distances commonly recorded for the species elsewhere and are probably related to search for prey.

scholarly journals Bottlenose dolphins (Tursiops truncatus, Montagu 1821) in central-northern coast of Rio de Janeiro State, Brazil: stranding patterns and insights into feeding habits

10.5597/00228 ◽  
2017 ◽  
Vol 11 (1-2) ◽  
pp. 191-198 ◽  
Author(s):  
Jailson Moura ◽  
Davi Castro Tavares ◽  
Helio K.C. Secco ◽  
Salvatore Siciliano
Keyword(s):  
Body Length ◽  
Bottlenose Dolphin ◽  
Tursiops Truncatus ◽  
Rio De Janeiro ◽  
Prey Species ◽  
Bottlenose Dolphins ◽  
Stomach Contents ◽  
The Body ◽  
Northern Coast ◽  
Janeiro State

The bottlenose dolphin (Tursiops truncatus) may be one of the best known dolphin species worldwide, principally due to its coastal distribution in many regions. However, few studies about ecology, biology and threats have been conducted on the Brazilian coast. The aim of the present work is to analyze the stranding pattern and stomach contents of bottlenose dolphins in the central-north coast of the Rio de Janeiro State, from Saquarema to São Francisco de Itabapoana (~300km of coast line). Forty nine stranding events were recorded through regular beach surveys from 1999 to 2012 and also through access to previous published studies conducted since 1984. The strandings were distributed throughout the study area, but there was a trend of occurrence in the extreme southern and northern regions. Nine specimens showed evidence of accidental mortality in fishing nets. The strandings were more frequently recorded during autumn and winter (χ2; p < 0.05). Male bottlenose dolphins stranded more often than females, showing significant differences in this relationship (χ2; p < 0.05). Most stranded dolphins were classified as adults (> 230cm of body length) (χ2; p < 0.05). The body length varied from 106 to 335cm. Four prey species were found in the stomach contents from the three specimens of bottlenose dolphin analyzed. The most representative prey species was the cutlassfish (Trichiurus lepturus). This study showed that bottlenose dolphins are frequently found dead along the Rio de Janeiro State where they feed mainly on coastal fish. Future studies need to be conducted to improve the knowledge on this poorly known cetacean in Brazil.

scholarly journals Suscetibilidade a Erosão dos Solos da Bacia Hidrográfica Lagos – São João, no Estado do Rio de Janeiro – Brasil, a partir do Método AHP e Análise Multicritério (Susceptibility to Erosion of Soils of the Lagos - São João Basin, in the State of Rio de Janeiro - Brazil, from the AHP Method and Multicriteria Analysis)

2019 ◽  
Vol 12 (4) ◽  
pp. 1415 ◽  
Author(s):  
Jefferson Pereira Caldas Santos ◽  
Vanessa Ingrid Saraiva Pereira Caldas ◽  
Antonio Soares Silva
Keyword(s):  
Soil Erosion ◽  
Rio De Janeiro ◽  
Process Analysis ◽  
Pearson Correlation ◽  
Multicriteria Analysis ◽  
The State ◽  
Kappa Statistics ◽  
Current State ◽  
Severe Erosion ◽  
Tropical Areas

A erosão dos solos é um problema muito comum em áreas tropicais como o Estado do Rio de Janeiro (Brasil). Este estudo teve como objetivo elaborar um mapa de suscetibilidade à erosão dos solos por meio de uma análise multicritério apoiada na Análise de Processos Hierárquicos (AHP) na bacia Lagos – São João. O mapa elaborado ao final do estudo evidenciou que as áreas centrais da referida bacia possuem alta suscetibilidade à erosão. Para a validação deste mapeamento foi utilizada as estatísticas kappa e a correlação de Pearson com valores de 0,8 e 0,7 respectivamente. Com objetivo de auxiliar a tomada de decisão para um melhor planejamento da área de estudo, foi elaborado um diagnóstico da erosão dos solos – estado atual, que mostrou que 30% da bacia já apresenta sinais de erosão severa e muito severa.  A B S T R A C TSoil erosion is a very common problem in tropical areas such as the State of Rio de Janeiro (Brazil). The objective of this study was to elaborate a map of soil erosion susceptibility by means of erodibility, erosivity, slope, geomorphology and soil use data, using the multi-criteria analysis, based on Hierarchical Process Analysis (AHP), in a basin in the state of Rio de Janeiro, the Lagos - São João basin. The map elaborated at the end of the study showed that the central areas of the basin are more susceptible to soil erosion. For the validation of this mapping, the kappa statistics and the Pearson correlation with values of 0.8 and 0.7 respectively were used. In order to help decision making for a better planning of the study area, a diagnosis of soil erosion - current state, defined in five stages was elaborated, where it was observed that about 30% of the basin already shows signs of severe erosion, corresponding to stages 4 and 5 defined in the study.Keywords: Erosion; São João Basin; AHP

scholarly journals The remnants of restinga habitats in the brazilian Atlantic Forest of Rio de Janeiro state, Brazil: habitat loss and risk of disappearance

2007 ◽  
Vol 67 (2) ◽  
pp. 263-273 ◽  
Author(s):  
CFD. Rocha ◽  
HG. Bergallo ◽  
M. Van Sluys ◽  
MAS. Alves ◽  
CE. Jamel
Keyword(s):  
Habitat Loss ◽  
Rio De Janeiro ◽  
Conservation Status ◽  
Legal Protection ◽  
Field Work ◽  
The State ◽  
Conservation Units ◽  
Landsat 7 ◽  
Extensive Degradation ◽  
Janeiro State

"Restingas" (herbaceous/shrubby coastal sand-dune habitats) used to cover most of Rio de Janeiro State coast, and have suffered extensive degradation over the last five centuries. Using satellite images and field work, we identified the remaining restingas in the State, recording the factors that might cause their degradation. We used two mosaics of Landsat 7 scenes (spatial resolution 15 and 30 m) to map and evaluate preliminarly the remaining areas and conservation status. Each remnant area was checked in the field, degraded areas within it were mapped and subtracted from the remnants. We identified 21 restinga remnants totalling 105,285 ha. The largest and smallest restinga remnants were Jurubatiba (25,141 ha) and Itaipu (23 ha), respectively. We identified 14 causes of degradation. The most important were vegetation removal for housing developments, establishment of exotic plant species, change of original substrate, and selective removal of species of economic importance for the horticultural industry. All restingas had disturbed parts under strong pressure due to human activities. Due to intense habitat loss, and occurrence of endemic/threatened vertebrate species in restinga habitats, we strongly indicate the implementation of new conservation units to protect these fragile remnants. This habitat is steadily decreasing and most remnants lack legal protection. Therefore, under the current human pressure most of this unique habitat is likely to be lost from the State within the next few years.

scholarly journals Spontaneous poisoning by Leucaena leucocephalai in a goat from Rio de Janeiro State, Brazil

2008 ◽  
Vol 38 (2) ◽  
pp. 551-555 ◽  
Author(s):  
Paulo Vargas Peixoto ◽  
Ticiana Nascimento França ◽  
Bernardo Melo Cunha ◽  
Danielle Valadão Albernaz Mattos Tavares ◽  
Marilene Farias Brito
Keyword(s):  
Digestive Tract ◽  
Histological Examination ◽  
Rio De Janeiro ◽  
Hair Follicles ◽  
The State ◽  
Muscular Layer ◽  
Tropical Regions ◽  
Cardiac Muscles ◽  
Main Meal ◽  
Janeiro State

Poisoning of a goat by Leucaena leucocephalai (Leg. Mimosoideae) in the State of Rio de Janeiro, Brazil, is described. Fresh leaves of the plant were ingested as the animal's main meal for at least 4 months before it developed total alopecia. At necropsy the thyroid was moderately enlarged. Histological examination revealed a decrease in the number of hair follicles (empty or in telogenic phase), vacuolation of keratinocytes of the epidermis and hair follicles, and superficial and follicular hyperkeratosis. Myxedema was found between skeletal and cardiac muscles fibers, in the kidneys, and in the submucosa/muscular layer of the digestive tract. The thyroid follicles were enlarged and filled with copious amounts of colloid (colloidal goiter). Although L. leucocephala is common in several tropical regions, natural poisoning by this plant in goats seems to be rare. It is the first report about spontaneous poisoning in goats by L. leucocephala in Brazil.

scholarly journals Diagnóstico técnico-económico e plano de ação para o setor de rochas ornamentais no estado do Rio de Janeiro

1997 ◽  
Vol 20 ◽  
pp. 181-200
Author(s):  
Claudio Margueron ◽  
Cristiane Mendes Coelho
Keyword(s):  
Rio De Janeiro ◽  
Action Plan ◽  
Geographic Location ◽  
Distribution Channels ◽  
The State ◽  
Diagnostic Study ◽  
Market Requirements ◽  
Janeiro State

This article initially undertakes a diagnostic study of the Marble and Granite Industry in Brazil and in Rio de Janeiro State. It shows the main uses for marble and granite and describes the key problems faced by this mining-mineral bencficiation sector in Brazil and Rio de Janeiro: production, institutional, roads and ports infrastructure, low value of exports, Italian Cartel, knowledge of distribution channels, market requirements and technology. It also describes in detail the geographic location, reserves and production of marble and granite in the state of Rio de Janeiro and the export-import situation for Brazil and for Rio de Janeiro State. Finally in its conclusions this article presents an ACTION PLAN for the Marble and Granite Sector of the state of Rio dc Janeiro economy.

scholarly journals Pattern of Live Births in Rio de Janeiro State, Brazil, According to Robson Groups and the Kotelchuck Index Classification - 2015/2016

2020 ◽  
Vol 42 (07) ◽  
pp. 373-379
Author(s):  
Luciana Leite de Mattos Alcantara ◽  
Núbia Karla de Oliveira Almeida ◽  
Renan Moritz Varnier Rodrigues de Almeida
Keyword(s):  
Prenatal Care ◽  
Pregnant Women ◽  
Rio De Janeiro ◽  
Maternal Age ◽  
Descriptive Analysis ◽  
The State ◽  
Live Births ◽  
Robson Classification ◽  
Unified Health System ◽  
Janeiro State

Abstract Objective To investigate the patterns of hospital births in the state of Rio de Janeiro (RJ), Brazil, between 2015 and 2016; considering the classification of obstetric characteristics proposed by Robson and the prenatal care index proposed by Kotelchuck. Methods Data obtained from the Information System on Live Births of the Informatics Department of the Brazilian Unified Health System (SINASC/DATASUS, in the Portuguese acronym) databases were used to group pregnant women relatively to the Robson classification. A descriptive analysis was performed for each Robson group, considering the variables: maternal age, marital status, schooling, parity, Kotelchuck prenatal adequacy index and gestational age. A logistic model estimated odds ratios (ORs) for cesarean sections (C-sections), considering the aforementioned variables. Results Out of the 456,089 live births in Rio de Janeiro state between 2015 and 2016, 391,961 records were retained, 60.3% of which were C-sections. Most pregnant women (58.6%) were classified in groups 5, 2 or 3. The percentage of C-sections in the Robson groups 1, 2, 3, 4, 5 and 8 was much higher than expected. Prenatal care proved to be inadequate for women who subsequently had a vaginal delivery, had an unfavorable family structure and a lower socioeconomic status (mothers without partners and with lower schooling), compared with those undergoing cesarean delivery. For a same Robson group, the chance of C-section increases when maternal age rises (OR = 3.33 for 41–45 years old), there is the presence of a partner (OR = 1.81) and prenatal care improves (OR = 3.19 for “adequate plus”). Conclusion There are indications that in the state of RJ, from 2015 to 2016, many cesarean deliveries were performed due to nonclinical factors.

Three new species of Senegalia (Leguminosae-Mimosoideae) from the Atlantic Forest domain, Brazil

Phytotaxa ◽  
2019 ◽  
Vol 408 (1) ◽  
pp. 30-40
Author(s):  
VANESSA TERRA ◽  
FLÁVIA CRISTINA PINTO GARCIA
Keyword(s):  
New Species ◽  
Atlantic Forest ◽  
Geographic Distribution ◽  
Rio De Janeiro ◽  
The State ◽  
Identification Key ◽  
Brazilian Species ◽  
Three New Species ◽  
Janeiro State

We describe, illustrate and compare three new Brazilian species of Senegalia from the Atlantic Forest domain: Senegalia atlantica, from Rio de Janeiro State; Senegalia rafinesqueana, from the state of Paraná; and Senegalia cupuliformis, from Bahia State. These species are morphologically most similar to S. tenuifolia and S. multipinnata, S. velutina, and S. kuhlmannii, respectively. Additionally, we provide an identification key to all Senegalia species that are morphologically similar to S. atlantica, S. rafinesqueana and S. cupuliformis and occur in the Atlantic Forest domain; we also provide comments on the geographic distribution and the flowering and fruiting period of S. atlantica, S. rafinesqueana and S. cupuliformis.

scholarly journals Arctiinae (Lepidoptera: Erebidae) in the state of Rio de Janeiro, Brazil

2016 ◽  
Vol 16 (2) ◽  
Author(s):  
Milena de Sousa Nascimento ◽  
Viviane Gianluppi Ferro ◽  
Ricardo Ferreira Monteiro
Keyword(s):  
Rio De Janeiro ◽  
New Records ◽  
The State ◽  
Northwestern Part ◽  
Vegetation Types ◽  
Field Sampling ◽  
Forest Remnants ◽  
Low Levels ◽  
High Beta ◽  
Janeiro State

This study describes the composition and distribution of the Arctiinae species (Lepidoptera: Erebidae) in Rio de Janeiro, generating the first list of Arctiinae species in the state. We assessed the variations in species composition and the different vegetation types in the municipalities of Rio de Janeiro. Data were collected primarily through surveys of museums and publication lists of species. We also conducted field sampling in March and September 2010. Of the 2,077 records covering 28 municipalities, 679 Arctiinae species were found in Rio de Janeiro state and were divided into two tribes and 220 genera. The location with the highest number of species recorded was Itatiaia, with 362 species, followed by Petrópolis and Angra dos Reis, with 320 and 306 species, respectively. Thirty-four percent (n = 230) of the species recorded were exclusive, i.e., occurred in only one location. The lowest dissimilarity values were observed between neighboring municipalities with the same type of plant formation, such as Petrópolis and Teresópolis (19%) or Itatiaia and Resende (24%). Some municipalities slightly further apart geographically, but with the same type of plant formation, also showed low levels of dissimilarity, for example, Petropolis and Resende (29%). However, most locations showed intermediate dissimilarity values of 40-60%, and in some cases, this figure rose to 96%. In the state of Rio de Janeiro, irrespective of its small geographical size and the predominance of a unique ecosystem, the Atlantic Forest shows a wide variation in relief, which may explain the high beta diversity values. Despite the large number of Arctiinae species recorded in Rio de Janeiro, few species were identified in areas with important forest remnants, such as Guapimirim, Nova Iguaçu, and Campos dos Goitacazes. Some regions of the northwestern part of the state were also subsampled. It is likely that new records of Arctiinae still exist in these locations, further increasing the list of Arctiinae species in Rio de Janeiro.

scholarly journals Orange rust in sugarcane: molecular identification in Rio de Janeiro State

2013 ◽  
Vol 39 (3) ◽  
pp. 207-210
Author(s):  
Carla Vanessa Borges Castro ◽  
Evaristo Vieira Mezavilla ◽  
Paulo Sergio Torres Brioso
Keyword(s):  
Control Strategy ◽  
Rio De Janeiro ◽  
Molecular Detection ◽  
The State ◽  
Infected Leaf ◽  
Agricultural Activities ◽  
Leaf Sample ◽  
Saccharum Spp ◽  
Puccinia Kuehnii ◽  
Janeiro State

Sugarcane (Saccharum spp.) cultivation is one of the major agricultural activities in the Brazilian states. This study aimed to molecularly identify the pathogen associated with rust in sugarcane cultivars in the state of Rio de Janeiro and to suggest a control strategy. Among the 14 PCR-tested cultivars, Puccinia kuehnii infection was identified for RB947520, RB92606, RB835486, RB72454, SP89-11I5, SP83-2847, both from infected leaf sample and from urediniospores. Puccinia kuehnii was not detected by PCR for the cultivars RB955971, RB951541, RB92579, RB867515, RB855536, SP91-1049, SP80-3280, SP80-1816. This is the first molecular detection of this fungus in the state of Rio de Janeiro for six of the 14 analyzed cultivars.

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