15 articles in this issue
Robson Seriani, Maria José Tavares Ranzani-Paiva, Adriano Gonçalves, Silmara Regina Siqueira, Julio Vicente Lombardi (Autor)
Selenium (Se) is described as an essential micronutrient and participates in different biological functions, as the antioxidant defense systems maintenance and regulation. However, when in high concentrations, Se may cause toxic effects as well as hematol... see more
José Cláudio Epaminondas dos Santos, Marcelo Mattos Pedreira, Ronald Kennedy Luz (Autor)
The aim of this study was to evaluate three stocking densities (20, 40 and 60 larvae L-1), and two daily prey concentrations (400 and 700 Artemia nauplii larvae-1) during the first seven days of active feeding (first phase). In the second phase was evalua... see more
José Ariévilo Gurgel Rodrigues, Edfranck de Sousa Oliveira Vanderlei, Ana Luíza Gomes Quinderé, Bruno Pedrosa Fontes, Ismael Nilo Lino de Queiroz, Norma Maria Barros Benevides (Autor)
O Brasil abriga uma das maiores biodiversidades marinhas do mundo, favorecendo a descoberta de fontes alternativas de compostos farmacológicos. Desta forma, objetivou-se avaliar o potencial anticoagulante de glicosaminoglicanos (GAGs) isolados das peles d... see more
Lisandro Juno Soares Vieira, Gisele Cristina Rosin, Alice Michyio Takeda, Maria Rosélia Marques Lopes, Daniel Silva de Sousa (Autor)
Chironomidae (Diptera) are a diverse and large group of small flies, whose larvae inhabit nearly every possible niche in most freshwater aquatic ecosystems. The Acre river is an important affluent of the Purus river. Our objective was to contribute to the... see more
Bruno Prone, Cibele Maria Vianna Zanon, Evanilde Benedito (Autor)
The present study aimed to inventory of bats species present in an urban area, located within the main campus of the State University of Maringá, northwestern Paraná State, and to present data on the diet, reproduction, and activity times of the captured ... see more
Raquel Rejane Bonato Negrelle, Suelen Elizabeth Bordignon, Olga Yano (Autor)
The results of a survey of Sphagnum used by the Descoberto and Empanturrado rural communities (Guaratuba municipality and Guaratuba Environmental Protected Area – EPA) are presented. The analysis was based on fresh material collected in different harvesti... see more
André Alberto, Basílio Gomes Ribeiro Filho (Autor)
Investigar a influência do esgoto orgânico na água do rio Camandocaia. Foram analisadas as seguintes variáveis limnológicas: pH, turbidez, cor, manganês, ferro, oxigênio dissolvido, nitrogênio e fósforo totais. Os dados são discutidos em termos de valores... see more
Kátia Sayuri Endo, Emanuel Ricardo Monteiro Martinez, Claudio Henrique Zawadzki, Luiz Ricardo de Souza Paiva, Horácio Ferreira Júlio Júnior (Autor)
Cytogenetic analyses were performed in four species of the Hypostominae subfamily, three from Hypostomus (Hypostomini) genus and Rhinelepis aspera (Rhinelepini). Three populations of Hypostomus ancistroides were analyzed, which had 2n=68 chromosomes, but ... see more
Carlos Henrique dos Anjos dos Santos, Marco Aurélio de Brito Leitão, Carolina Fernandes Silva de Sousa, Givanildo Ximenes Santana, Maria de Nazaré Paula-Silva, Vera Maria Fonseca de Almeida-Val (Autor)
Tambaqui (Colossoma macropomum) is among the most important fish species of the Amazon and one of the most cultivated in Brazil. In the present work we have evaluated the genetic variability of wild and captivity populations of C. macropomum. Enzymatic ma... see more
Debora Martins Silva Santos, Cristiano Ferreira Cruz, Dayane Pestana Pereira, Lúcia Maria Coelho Alves, Flávio Ruas de Moraes (Autor)
The present study evaluated the microbiological water quality and tissue lesions in gills from Nile tilapia (Oreochromis niloticus) and hybrid tambacu (Colossoma macropomum female x Piaractus mesopotamicus male). For this, water and gills were collected f... see more
Neide Martins Moreira, Eliane Muniz, Catchia Hermes-Uliana, Eduardo José de Almeida Araújo, Debora de Mello Goncales Sant'Ana (Autor)
Objetivou-se avaliar os efeitos da oferta de uma dieta contendo 4% de proteínas para ratos adultos, quanto aos aspectos morfométricos do plexo mientérico do íleo. Vinte animais foram distribuídos aleatoriamente em dois grupos: Controle (n = 10) que recebe... see more
Abhishek Kumar, ManiRam Prasad, Diwakar Mishra, Sunil Kumar Srivastav, Ajai Kumar Srivastav (Autor)
The acute static renewal test of a botanical pesticide - azadirachtin for the freshwater catfish, Heteropneustes fossilis has been performed to determine the LC50 values at different exposure period. The LC50 values at various exposure periods are 173.06 ... see more
Juliana de Souza Carneiro, Ana Odete Santos Vieira (Autor)
As trepadeiras são plantas com alta representatividade nas florestas tropicais e de grande importância ecológica, apontadas como um dos fatores básicos que diferencia florestas tropicais de temperadas. Este trabalho apresenta as espécies de trepadeiras da... see more
Rosemeire de Souza Santos, Natalia Marchiori, Vamilton Alvares Santarem, Haroldo Kazuyuki Takahashi, José Luis Pedreira Mourino, Maurício Laterça Martins (Autor)
Parasitological indexes of Austrodiplostomum compactum (Digenea, Diplostomidae) in fishes from the Paraná River, Presidente Epitácio region, state of São Paulo, Brazil, and their relationship with climate and water quality are evaluated. Fifty-one specime... see more
Adriano Reder de Carvalho, Rodney Kozlowiski de Azevedo, Vanessa Doro Abdallah, José Luis Fernando Luque (Autor)
O presente trabalho teve como objetivo o estudo qualitativo e quantitativo das metacercárias de diplostomídeos em Geophagus brasiliensis (Quoy & Gaimard, 1824) do rio Guandu, Seropédica, Rio de Janeiro, Brasil. Entre abril de 2006 e março de 2007, foram c... see more