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The Rio de Janeiro Marine Aquarium (AquaRio) is the first to successfully maintain and reproduce the spiny butterfly ray (Gymnura altavela), providing unique information about the species' biology. Seven rays were kept in captivity between 2018 and 2023, two captured on the southeastern coast of Brazil and five born in the aquarium. The applied abiotic conditions and nutrition allowed for the survival, growth, and reproduction of these individuals. Growth parameters (asymptotic disk width-DW∞ and growth coefficient-k) were estimated based on the von Bertalanffy model using the Fabens method for males and females separately. The best models estimated DW∞ = 106.47 cm and k = 0.396 for males and DW∞ = 172.2 cm and k = 0.190 for females. Sexual dimorphism was corroborated, with females reaching larger sizes and presenting slower growth rates than males. The estimated k values were higher than those estimated for rays of similar size to G. altavela in the natural environment, probably due to the constant water temperature (around 25.5°C), food abundance, low population density, reduced predation rates, and high water quality in the captive environment. A comparison of the captivity findings with other studies on G. altavela age and growth in the Atlantic and Mediterranean indicates a broad phenotypic plasticity regarding growth. Three G. altavela reproductions were recorded, with size at birth appearing to be a key factor for pup's survival. Behavioral pattern observations associated with reproduction are also described, encompassing chasing and copulation, whereas the species' internal morphology is described through coelomic cavity ultrasound scanning.
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Elasmobranchs represent a group of species under considerable anthropic pressure because of the scale of industrial and artisanal fisheries and the loss of essential areas for nursery and feeding, which are causing substantial population losses around the world. Reproduction in an ex situ environment enables a healthy population to be built and maintained in networks of public aquariums, increasing our knowledge of elasmobranch reproductive biology and offering the opportunity for reintroductions in areas where native populations have been removed. The study reports two successful pregnancies of the whitetip reef shark Triaenodon obesus, considered a vulnerable species by the International Union for the Conservation of Nature. Copulation and gestation data are provided, including ultrasound recordings of the late stage of embryo development. Ultrasonography was performed with the GE Logiq and convex transducer and revealed a fetus with defined fins and organogenesis, with definition of eyes, gills, liver, a heart with individualized chambers, partially defined kidneys, and a well-defined spiral intestine. A cartilaginous skeleton forming a posterior acoustic shadow was detailed, as well as a moving fetus with a biparietal diameter of 6.47 cm and a heart rate of 62 Beats Per Minute on spectral Doppler. This is the first successful reproduction of T. obesus in an aquarium in Brazil.
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The tiger shark Galeocerdo cuvier (Péron & Lesueur, 1822) (Carcharhinidae) is classified as near-threatened along the Brazilian coast, in line with its global categorization. Although Rio de Janeiro, located in southeastern Brazil, is internationally identified as a priority shark conservation area, many shark species, including tiger sharks, are landed by both industrial and artisanal fisheries in this state. However, there is a lack of detailed information on the species capture pressures and records for the state of Rio de Janeiro. Therefore, the aims of this study were to expand the tiger shark record database and to improve upon future conservation and management strategies. Tiger shark records from four coastal Rio de Janeiro regions were obtained by direct observation. The information obtained from fishery colonies/associations, environmental guards, researchers, and scientific articles, totaling 23 records, resulted in an approximately 5-fold increase in the number of tiger shark records off the coast of the state of Rio de Janeiro. A possible seasonality pattern concerning the size of the captured/observed animals was noted, emphasizing the need to consider the coast of Rio de Janeiro as an especially relevant area for at least part of the life history of tiger sharks.
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Araruama Lagoon (Rio de Janeiro) is the largest hypersaline lagoon in South America. The aim of this study was to survey fishing landings, capture areas and production at this lagoon, in addition to analyzing data from the Pescarte Census. Fishing landings were monitored daily by community agents from March to August/2009, through the Petrobras Mosaico Program. Thirteen landing points were identified in five municipalities, totaling 8,096 recorded landings, and accumulating 469.1 tonnes. São Pedro da Aldeia (39.6%), Arraial do Cabo (27.7%) and areas in the central region (37.6%) and the south coast (29.1%) of the lagoon presented the highest landings and catch volumes. Twelve species were identified, mainly Pogonias courbina (48.9%) and Penaeus spp. (33.8%), and gillnets were the most important fishing gear. Very few studies have addressed fishing at Araruama Lagoon, leading to current planning measures supported by little data. We advocate a participatory review of current regulations, to better address gillnet fishing and the capture of different fish species. This study is the result of research financed by the Pescarte Environmental Education Project, a mitigation measure required by the Federal Environmental Licensing, conducted by IBAMA.(AU)
A Lagoa de Araruama (Rio de Janeiro) é a maior lagoa hipersalina da América do Sul. O objetivo do estudo foi levantar os pontos de desembarque pesqueiro, áreas de captura e a produção da lagoa, além de analisar dados do Censo Pescarte. Por meio do Programa Petrobras Mosaico foi acompanhado o desembarque pesqueiro de março a agosto/2009, por agentes comunitários, com monitoramento diário da pesca. Foram identificados 13 pontos de desembarque, em cinco municípios, sendo registrados 8.096 desembarques, com 469,1 toneladas. São Pedro da Aldeia (39,6%), Arraial do Cabo (27,7%) e áreas da região central (37,6%) e litoral sul (29,1%) da lagoa apresentaram os maiores desembarques e capturas. Foram identificadas 12 espécies, sendo Pogonias courbina (48,9%) e Penaeus spp. (33,8%) as principais, com a rede de emalhar sendo o petrecho mais importante. Pouquíssimos estudos abordaram à pesca na Lagoa de Araruama; logo, as medidas de ordenamento vigentes estão respaldadas em poucos dados. Defendemos uma revisão participativa da regulamentação, de forma a abordar melhor a pesca de emalhe e a captura de peixes diversos. Este estudo é resultado de pesquisa financiada pelo Projeto de Educação Ambiental Pescarte, que é uma medida de mitigação exigida pelo Licenciamento Ambiental Federal, conduzido pelo IBAMA.(AU)
Assuntos
Animais , Pesqueiros , Laguna Costeira , Perciformes/classificação , Penaeidae/classificaçãoRESUMO
Araruama Lagoon (Rio de Janeiro) is the largest hypersaline lagoon in South America. The aim of this study was to survey fishing landings, capture areas and production at this lagoon, in addition to analyzing data from the Pescarte Census. Fishing landings were monitored daily by community agents from March to August/2009, through the Petrobras Mosaico Program. Thirteen landing points were identified in five municipalities, totaling 8,096 recorded landings, and accumulating 469.1 tonnes. São Pedro da Aldeia (39.6%), Arraial do Cabo (27.7%) and areas in the central region (37.6%) and the south coast (29.1%) of the lagoon presented the highest landings and catch volumes. Twelve species were identified, mainly Pogonias courbina (48.9%) and Penaeus spp. (33.8%), and gillnets were the most important fishing gear. Very few studies have addressed fishing at Araruama Lagoon, leading to current planning measures supported by little data. We advocate a participatory review of current regulations, to better address gillnet fishing and the capture of different fish species. This study is the result of research financed by the Pescarte Environmental Education Project, a mitigation measure required by the Federal Environmental Licensing, conducted by IBAMA.
A Lagoa de Araruama (Rio de Janeiro) é a maior lagoa hipersalina da América do Sul. O objetivo do estudo foi levantar os pontos de desembarque pesqueiro, áreas de captura e a produção da lagoa, além de analisar dados do Censo Pescarte. Por meio do Programa Petrobras Mosaico foi acompanhado o desembarque pesqueiro de março a agosto/2009, por agentes comunitários, com monitoramento diário da pesca. Foram identificados 13 pontos de desembarque, em cinco municípios, sendo registrados 8.096 desembarques, com 469,1 toneladas. São Pedro da Aldeia (39,6%), Arraial do Cabo (27,7%) e áreas da região central (37,6%) e litoral sul (29,1%) da lagoa apresentaram os maiores desembarques e capturas. Foram identificadas 12 espécies, sendo Pogonias courbina (48,9%) e Penaeus spp. (33,8%) as principais, com a rede de emalhar sendo o petrecho mais importante. Pouquíssimos estudos abordaram à pesca na Lagoa de Araruama; logo, as medidas de ordenamento vigentes estão respaldadas em poucos dados. Defendemos uma revisão participativa da regulamentação, de forma a abordar melhor a pesca de emalhe e a captura de peixes diversos. Este estudo é resultado de pesquisa financiada pelo Projeto de Educação Ambiental Pescarte, que é uma medida de mitigação exigida pelo Licenciamento Ambiental Federal, conduzido pelo IBAMA.
Assuntos
Animais , Laguna Costeira , Penaeidae/classificação , Perciformes/classificação , PesqueirosRESUMO
Abstract: A total of 1,471 specimens of 16 species of flatfishes (Pleuronectiformes) were caught during 48 sampling campaigns between July 2005 and June 2007 at ten stations in Guanabara Bay, Rio de Janeiro, Brazil. Paralichthyidae was the dominant family, with Etropus crossotus as the dominant species. The outer stations, especially those on the western side of the lower estuary, were distinguished as a result of their higher abundance of flatfishes and number of species. The spatial distribution of E. crossotus and its population structure indicate that this species is an estuarine resident despite the apparent reduction in its area of occupation within the estuarine complex. Among the other species, nine were classified as marine stragglers (Achirus declivis, Bothus ocellatus, Cyclopsetta chittendeni, Etropus longimanus, Paralichthys orbignyanus, P. patagonicus, Syacium micrurum, Symphurus diomedeanus and Trinectes paulistanus) and three as estuarine opportunists (Bothus robinsi, Citharichthys macrops and Syacium papillosum); another three could not be classified due to the small number of captures or lack of previous data (S. tessellatus, A. lineatus and C. spilopterus).
Resumo: Um total de 1.471 espécimes de 16 espécies de linguados (Pleuronectiformes) foram capturados durante 48 campanhas de amostragem entre julho de 2005 e junho de 2007 em dez estações na Baía de Guanabara, Rio de Janeiro, Brasil. Paralichthyidae foi a família dominante, com Etropus crossotus como a espécie dominante. As estações externas, especialmente aquelas no lado ocidental do baixo estuário, foram distinguidas como resultado de sua maior abundância de linguados e número de espécies. A distribuição espacial de E. crossotus e sua estrutura populacional indicam que esta espécie é uma residente estuarina, apesar da aparente redução em sua área de ocupação dentro do complexo estuarino. Dentre as outras espécies, nove foram classificadas como migrantes marinhos (Achirus declivis, Bothus ocellatus, Cyclopsetta chittendeni, Etropus longimanus, Paralichthys orbignyanus, P. patagonicus, Syacium micrurum, Symphurus diomedeanus e Trinectes paulistanus) e três como oportunistas estuarinos (Bothus robinsi, Citharichthys macrops e Syacium papillosum); outras três não puderam ser classificados devido ao pequeno número de capturas ou falta de dados prévios (S. tessellatus, A. lineatus e C. spilopterus).
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PURPOSE: To evaluate whether a multifaceted, centrally coordinated quality improvement program in a network of hospitals can increase compliance with the resuscitation bundle and improve clinical and economic outcomes in an emerging country setting. METHODS: This was a pre- and post-intervention study in ten private hospitals (1,650 beds) in Brazil (from May 2010 to January 2012), enrolling 2,120 patients with severe sepsis or septic shock. The program used a multifaceted approach: screening strategies, multidisciplinary educational sessions, case management, and continuous performance assessment. The network administration and an external consultant provided performance feedback and benchmarking within the network. The primary outcome was compliance with the resuscitation bundle. The secondary outcomes were hospital mortality, hospital and ICU length of stay, quality-adjusted life year (QALY) gain, and cost-effectiveness. RESULTS: The proportion of patients who received all the required items for the resuscitation bundle improved from 13% [95% confidence interval (CI) 8-18%] at baseline to 62% (95% CI 54-69%) in the last trimester (p < 0.001). Hospital mortality decreased from 55% (95% CI 48-62%) to 26% (95% CI 19-32%, p < 0.001). Full compliance with the resuscitation bundle was associated with lower risk of hospital mortality (propensity weighted corrected risk ratio 0.74; 95% CI 0.56-0.94, p = 0.02). There was a reduction in the total cost per patient from 29.3 (95% CI 23.9-35.4) to 17.5 (95% CI 14.3-21.1) thousand US dollars from baseline to the last 3 months (mean difference -11,815; 95% CI -18,604 to -5,338). The mean QALY increased from 2.63 (95% CI 2.15-3.14) to 4.06 (95% CI 3.58-4.57). For each QALY, the full compliance saves US$5,383. CONCLUSIONS: A multifaceted approach to severe sepsis and septic shock patients in an emerging country setting led to high compliance with the resuscitation bundle. The intervention was cost-effective and associated with a reduction in mortality.
Assuntos
Pessoal de Saúde/educação , Ressuscitação/educação , Ressuscitação/normas , Sepse/terapia , Brasil , Análise Custo-Benefício , Feminino , Seguimentos , Fidelidade a Diretrizes , Humanos , Masculino , Pessoa de Meia-Idade , Ressuscitação/economia , Estudos Retrospectivos , Fatores de Tempo , Resultado do TratamentoRESUMO
INTRODUCTION: Bronchiectasis is a chronic disorder characterized by permanent dilation of the bronchi and bronchioles accompanied by inflammatory changes in the walls of these structures and adjacent lung parenchyma. OBJECTIVE: The aim of the present study was to perform a clinical and functional characterization of adult patients with non-cystic fibrosis bronchiectasis. METHODS: A clinical, descriptive, retrospective, case-series study was carried out involving 232 patients with non-cystic fibrosis bronchiectasis treated at a lung ambulatory between 2004 and 2012. RESULTS: The sample consisted of 232 patients (134 females; mean age: 52.9 years ± 17.7; body mass index: 23.5 kg/m² ± 4.4). The predominant symptoms were cough (91.4%), expectoration (85.8%) and dyspnea (76.3%). The majority of cases were of a non-tuberculosis etiology (64.7%). Regarding lung function, the obstructive breathing pattern was predominant (43.5%). The most common comorbidities were of a cardiovascular origin (51.0%). CONCLUSIONS: Adult patients with non-cystic fibrosis bronchiectasis (mainly post-infection or post-tuberculosis in origin) are characterized by a low educational level, excessive cough, sputum, dyspnea, muscle fatigue, an obstructive breathing pattern with frequent hypoxemia and multiple comorbidities, mainly of a cardiovascular origin. However, our patients have a low index of exacerbations and hospitalizations that can be assigned to a clinical protocol for monitoring.
INTRODUÇÃO: Bronquiectasia é uma doença crônica caracterizada pela dilatação permanente dos brônquios e bronquíolos acompanhada por alterações inflamatórias nas paredes dessas estruturas e parênquima pulmonar adjacente. OBJETIVO: O objetivo do presente estudo é realizar uma caracterização clínica e funcional de pacientes adultos com bronquiectasias e fibrose não cística. Métodos: Um estudo clínico descritivo e retrospectivo foi realizado com pacientes com bronquiectasias e fibrose não cística atendidos em um ambulatório de pulmão entre 2004 e 2012. RESULTADOS: A amostra foi composta por 232 pacientes (134 mulheres, idade média: 52,9 anos ± 17,7, índice de massa corporal: 23,5 ± 4,4 kg/m2). Os sintomas predominantes foram tosse (91,4%), expectoração (85,8%) e dispneia (76,3%). A maioria dos casos foi de etiologia não tuberculosa (64,7%). Em relação à função pulmonar, o padrão de respiração obstrutiva foi predominante (43,5%). As comorbidades mais comuns foram de origem cardiovascular (51,0%). CONCLUSÕES: pacientes adultos com bronquiectasias de fibrose não cística (principalmente pós-infecção ou pós-tuberculose de origem) são caracterizados por um baixo nível de escolaridade, tosse excessiva, expectoração, dispneia, fadiga muscular, um padrão de respiração obstrutiva com hipoxemia frequente e múltiplas comorbidades, essencialmente de origem cardiovascular. No entanto, nossos pacientes têm um baixo índice de exacerbações e hospitalizações que podem ser atribuídos a um protocolo clínico para o acompanhamento.
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Objetivo: A definição atual de sepse grave e choque séptico inclui um perfil heterogêneo de pacientes. Embora o valor prognóstico de hiperlactatemia seja bem estabelecido, ela está presente em pacientes com ou sem choque. Nosso objetivo foi comparar o prognóstico de pacientes sépticos estratificando-os segundo dois fatores: hiperlactatemia e hipotensão persistente. Métodos: Este estudo é uma análise secundária de um estudo observacional conduzido em dez hospitais no Brasil (Rede Amil - SP). Pacientes sépticos com valor inicial de lactato das primeiras 6 horas do diagnóstico foram incluídos e divididos em 4 grupos segundo hiperlactatemia (lactato >4mmol/L) e hipotensão persistente: (1) sepse grave (sem ambos os critérios); (2) choque críptico (hiperlactatemia sem hipotensão persistente); (3) choque vasoplégico (hipotensão persistente sem hiperlactatemia); e (4) choque disóxico (ambos os critérios). Resultados: Foram analisados 1.948 pacientes, e o grupo sepse grave constituiu 52% dos pacientes, seguido por 28% com choque vasoplégico, 12% choque disóxico e 8% com choque críptico. A sobrevida em 28 dias foi diferente entre os grupos (p<0,001), sendo maior para o grupo sepse grave (69%; p<0,001 versus outros), semelhante entre choque críptico e vasoplégico (53%; p=0,39) e menor para choque disóxico (38%; p<0,001 versus outros). Em análise ajustada, a sobrevida em 28 dias permaneceu diferente entre os grupos (p<0,001), sendo a maior razão de risco para o grupo choque disóxico (HR=2,99; IC95% 2,21-4,05). Conclusão: A definição de pacientes com sepse inclui quatro diferentes perfis, se considerarmos a presença de hiperlactatemia. Novos estudos são necessários para melhor caracterizar pacientes sépticos e gerar conhecimento ...
Objective: The current definition of severe sepsis and septic shock includes a heterogeneous profile of patients. Although the prognostic value of hyperlactatemia is well established, hyperlactatemia is observed in patients with and without shock. The present study aimed to compare the prognosis of septic patients by stratifying them according to two factors: hyperlactatemia and persistent hypotension. Methods: The present study is a secondary analysis of an observational study conducted in ten hospitals in Brazil (Rede Amil - SP). Septic patients with initial lactate measurements in the first 6 hours of diagnosis were included and divided into 4 groups according to hyperlactatemia (lactate >4mmol/L) and persistent hypotension: (1) severe sepsis (without both criteria); (2) cryptic shock (hyperlactatemia without persistent hypotension); (3) vasoplegic shock (persistent hypotension without hyperlactatemia); and (4) dysoxic shock (both criteria). Results: In total, 1,948 patients were analyzed, and the sepsis group represented 52% of the patients, followed by 28% with vasoplegic shock, 12% with dysoxic shock and 8% with cryptic shock. Survival at 28 days differed among the groups (p<0.001). Survival was highest among the severe sepsis group (69%, p<0.001 versus others), similar in the cryptic and vasoplegic shock groups (53%, p=0.39), and lowest in the dysoxic shock group (38%, p<0.001 versus others). In the adjusted analysis, the survival at 28 days remained different among the groups (p<0.001) and the dysoxic shock group exhibited the highest hazard ratio (HR=2.99, 95%CI 2.21-4.05). Conclusion: The definition of sepsis includes four different profiles if we consider the presence of hyperlactatemia. Further studies are needed to better characterize septic patients, to understand the etiology and to design adequate targeted treatments. .
Assuntos
Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Hiperlactatemia/etiologia , Hipotensão/etiologia , Sepse/diagnóstico , Choque Séptico/diagnóstico , Brasil , Estudos de Coortes , Hospitais , Hiperlactatemia/diagnóstico , Hipotensão/diagnóstico , Ácido Láctico/sangue , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Sepse/classificação , Sepse/fisiopatologia , Choque Séptico/classificação , Choque Séptico/fisiopatologia , Vasoplegia/diagnóstico , Vasoplegia/etiologia , Vasoplegia/fisiopatologiaRESUMO
OBJECTIVE: The current definition of severe sepsis and septic shock includes a heterogeneous profile of patients. Although the prognostic value of hyperlactatemia is well established, hyperlactatemia is observed in patients with and without shock. The present study aimed to compare the prognosis of septic patients by stratifying them according to two factors: hyperlactatemia and persistent hypotension. METHODS: The present study is a secondary analysis of an observational study conducted in ten hospitals in Brazil (Rede Amil - SP). Septic patients with initial lactate measurements in the first 6 hours of diagnosis were included and divided into 4 groups according to hyperlactatemia (lactate >4mmol/L) and persistent hypotension: (1) severe sepsis (without both criteria); (2) cryptic shock (hyperlactatemia without persistent hypotension); (3) vasoplegic shock (persistent hypotension without hyperlactatemia); and (4) dysoxic shock (both criteria). RESULTS: In total, 1,948 patients were analyzed, and the sepsis group represented 52% of the patients, followed by 28% with vasoplegic shock, 12% with dysoxic shock and 8% with cryptic shock. Survival at 28 days differed among the groups (p<0.001). Survival was highest among the severe sepsis group (69%, p<0.001 versus others), similar in the cryptic and vasoplegic shock groups (53%, p=0.39), and lowest in the dysoxic shock group (38%, p<0.001 versus others). In the adjusted analysis, the survival at 28 days remained different among the groups (p<0.001) and the dysoxic shock group exhibited the highest hazard ratio (HR=2.99, 95%CI 2.21-4.05). CONCLUSION: The definition of sepsis includes four different profiles if we consider the presence of hyperlactatemia. Further studies are needed to better characterize septic patients, to understand the etiology and to design adequate targeted treatments.