20 articles in this issue
Marcelo Maia Pereira, Oswaldo Pinto Ribeiro Filho, Jose Cola Zanuncio, Allan Reis Troni, Rodrigo Diana Navarro, Angela Emi Takamura (Autor)
By understanding the hormonal action behind the induction of spermiation in Leptodactylus ocellatus can help in the collection of semen for artificial insemination and cryopreservation. The experiments were conducted at the Experimental Frog Farm of the F... see more
Neiva Braun, Ronaldo Lima de Lima, Bernardo Baldisserotto, Alcir Luiz Dafre, Alex Pires de Oliveira Nuñer (Autor)
This study evaluated the biochemical changes associated to successive captures of Salminus brasiliensis reared at different stocking densities. The experiment was conducted in tanks with a capacity of 1,000 L, connected to a recirculating system with tem... see more
Guilherme de Freitas Côrtes, Monica Yumi Tsuzuki, Emílio Mateus Costa Melo (Autor)
Ciliate protozoa of the genus Euplotes commonly appears contaminating mass cultures of rotifers but also with potential to be used as live food in the larviculture of marine fish. To obtain a monoculture of Euplotes sp., three diets were tested: 1) microa... see more
Lúcia Helena Sipaúba Tavares, Rachel Magalhães Santeiro (Autor)
Fish farms’ water quality management is analyzed with regard to the management employed and the different trophic states are compared within the system during the dry and rainy seasons. Six sites were marked two in the water supply (P1 and P2), and four w... see more
Maria Isabel Suhet, Ruben Pablo Schocken-Iturrino (Autor)
This study evaluated the influence of intensive farming of tilapia on physical and chemical parameters and on the occurrence of Streptococcus spp. in the water of the lake and of cages. Throughout a year, monthly samplings were taken in the rainy and dry ... see more
Frederico Jacob Eutrópio, Werther Krohling (Autor)
Talitroides topitotum (Amphipoda) was introduced in Brazil by silviculture activities. Currently the species is distributed in the states of Paraná, Rio de Janeiro and São Paulo. This paper describes the species’ occurrence in the state of Espírito Santo... see more
Mariana Cristina Sarragiotto, Evanilde Benedito (Autor)
This work analyzed the implementation of images from the remote sensors ASTER, CBERS, IKONOS, LANDSAT, MODIS, NOAA, QUICKBIRD and SPOT in Brazilian and international Landscape Ecology studies, developed between 1991 and July 2009. The study analyzed works... see more
Mariana Carolina Teixeira, Júlio César Rodrigues de Azevedo, Thomaz Aurélio Pagioro (Autor)
Dissolved organic carbon (DOC) is nowadays recognized as the main substrate and source of energy for aquatic microbial community. The great part of available organic carbon for bacterioplankton might be formed after photolytic degradation of humic materia... see more
Stefan Vilges de Oliveira, Fernando Marques Quintela, Eduardo Resende Secchi (Autor)
This paper presents data on species composition and use of habitat of medium and large sized mammal assemblages in a coastal dunes segment and adjacent marshes at Rio Grande municipality, southern Rio Grande do Sul State, Brazil. Records were obtained t... see more
Flávio Henrique Ragonha, Josiane Barros Chiaramonte, Hélio Martins Fontes Junior, Eduardo Ribeiro da Cunha, Evanilde Benedito, Alice Michiyo Takeda (Autor)
Ilha Grande National Park is an important conservation unit localized in the Southern part of the upper Paraná river floodplain (Brazil) that includes diverse aquatic environments. Oligochaeta (Annelida) is a large group of invertebrates, with several sm... see more
Rodrigo de Jesus Silva, Maria Elisa de Paula Eduardo Garavello (Autor)
This study reviews the debate concerning socioeconomic impacts of established protected areas on local populations. On one side, there are those who defend the idea that protected areas may assist in poverty reduction by generating alternative sources of ... see more
Juliana Bueno Ruiz, Ludimilla Ronqui, Jussara Ricardo de Oliveira, Maria Claudia Colla Ruvolo-Takasusuki (Autor)
Total proteins and esterases from silk gland extracts of Bombyx mori silkworm were characterized and compared with electrophoretic profiles of prepared extracts with silkworm glands infected with nucleopolyhedrovirus (BmNPV). SDS-PAGE (7%) gels was used f... see more
Carlos Alberto Machado da Rocha, Augusto César Paes de Souza, Ramayanna da Silva Rayol, Helem Ferreira Ribeiro (Autor)
This study described the karyotype of Geophagus cf. proximus. Specimens were collected in Água Preta Lake, Parque Ambiental de Belém, Pará State, Brazil. The karyotype were 2n = 48 chromosomes (FN = 60: 12M/SM+36ST/A) and no sexual chromosome differentiat... see more
Sara Lívia da Silva Fernandes da Matta, Maria Santina de Castro Morini, Alexandre Wagner Silva Hilsdorf (Autor)
Random amplified polymorphic DNA (RAPD) markers were used to investigate the genetic relationship among nests of the carpenter ant, Camponotus rufipes, located in the same area. Five random oligodecamers were used to amplify DNA from 108 ant workers colle... see more
Izabel de Souza Chaves, Amauri Alves Alvarenga, Sara Dousseau, Elma dos Santos Souza, Mariana Aline Silva Artur, Túlio Silva Lara (Autor)
Miconia ligustroides (DC.) Naudim, popularly known as “vassoura-preta” or “jacatirão-do-brejo” is widely distributed in Brazil. It is a recommended species for restoration of riparian areas and its fruits are attractive to wildlife. However, little is kno... see more
Kleber Fernando Pereira, Daiane Rodrigues Souza, Lorraine Silva Ferreira, Pâmella Rosa Chela, Carla Helrigle, Eugênio Gonçalves de Araújo (Autor)
Procyon cancrivorus is a wild mammal from the Procyonidae family, being one of the least studied Brazilian carnivores. The aim of this study was to describe the morphological aspects of the salivary glands of Procyon cancrivorus, and to compare with liter... see more
Solange de Paula Ramos, Karla Fabiana Goessler, Roberto Jose Ruiz, Osny Ferrari, Marcos Doederlein Polito, Maria José Sparça Salles (Autor)
To investigate the effect of chronic moderate exercise on male reproductive tract of Wistar rats submitted to a single dose of cyclophosphamide (CP). Animals were submitted to swimming exercise during 21 days or maintained at sedentary state. Trained (TCP... see more
Valdemiro Amaro da Silva Junior, Waldo Oliveira Monteiro Filho, Catarina Ferreira Pinto, Sandra Maria de Torres, Bruno Mendes Tenorio (Autor)
In current assay the serotoninergic system in newly-born Wistar rats underwent pharmacological modification by fluoxetine, a selective serotonin reuptake inhibitor (SSRI), to investigate its repercussion on testicular parameters in adult animals. Thirty a... see more
Marcelo de Oliveira Soares, Leonardo Peres de Souza (Autor)
This study evaluated the physiological, morphological and ethological effects of salinity variations on the tropical zoanthid Protopalythoa variabilis. This zoanthid was submitted to different salinity levels to probe the hypothesis of osmoregulation. Spe... see more
Marcelo Knoff, Sergio Carmona São Clemente, Michelle Cristie Gonçalves da Fonseca, Nilza Nunes Felizardo, Francisco Carlos de Lima, Roberto Magalhães Pinto, Delir Corrêa Gomes (Autor)
The blackfin goosefish is included in a prized fish category, representing valuable fishery resource worldwide. The aim of this study was to identify the Anisakidae larvae parasitizing this fish species, considering the hygienic-sanitary and public health... see more