Brazilian Journal of Biology (Braz J Biol)

Publisher: Instituto Internacional de Ecologia (Brazil)

Journal description

The first issue of the Brazilian Journal of Biology was published in April 1941 under the name Revista Brasileira de Biologia, after the establishment of Sociedade de Biologia do Brasil and it was financed by the philanthropist Guilherme Guinle. Only in 1971 the journal came to be published by Academia Brasileira de Ciências. As from 1998, it has been published by Instituto Internacional de Ecologia, and in 2000 had its name modified to Brazilian Journal of Biology. Its purpose is to publish articles with the results of original research in any branch of Biological Sciences. The Editorial board coordinates the assessment of the articles submitted. It is a quarterly publication.

Current impact factor: 0.68

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 Impact Factor 0.678
2012 Impact Factor 0.637
2011 Impact Factor 0.688
2010 Impact Factor 0.625

Impact factor over time

Impact factor
Year

Additional details

5-year impact 0.00
Cited half-life 6.00
Immediacy index 0.13
Eigenfactor 0.00
Article influence 0.00
Website Brazilian Journal of Biology website
Other titles Revista brasileira de biologia
ISSN 1519-6984
OCLC 53826692
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: In the Neotropical Region, information concerning hyporheic communities is virtually non-existent. We carried out a sampling survey in the hyporheic zone of the Tijuca River, in the Tijuca National Park, located in the urban area of the city of Rio de Janeiro. Biological samples from the hyporheic zone were collected in three different stream reaches, in June 2012. The main objectives were: 1) to describe the structure of invertebrate assemblages in the hyporheic zone of a neotropical stream; 2) to apply a reach-scale approach in order to investigate spatial patterns of the hyporheic assemblages in relation to hydrology, depth and microhabitat typology. A total of 1460 individuals were collected and identified in 31 taxa belonging to Nematoda, Annelida, Crustacea, Hydrachnidia and Insecta. The class Insecta dominated the upper layer of the hyporheic zone. Copepods were the most abundant taxon among crustaceans and occurred mostly in the upwelling areas of the reaches. The results of this study represent one of the few contributions so far about hyporheic invertebrate assemblages of the Neotropical Region.
    Brazilian Journal of Biology 12/2015;
  • [Show abstract] [Hide abstract]
    ABSTRACT: The hyporheic zone (HZ), as the connecting ecotone between surface- and groundwater, is functionally part of both fluvial and groundwater ecosystems. Its hydrological, chemical, biological and metabolic features are specific of this zone, not belonging truly neither to surface- nor to groundwater. Exchanges of water, nutrients, and organic matter occur in response to variations in discharge and bed topography and porosity. Dynamic gradients exist at all scales and vary temporally. Across all scales, the functional significance of the HZ relates to its activity and connection with the surface stream. The HZ is a relatively rich environment and almost all invertebrate groups have colonized this habitat. This fauna, so-called hyporheos, is composed of species typical from interstitial environment, and also of benthic epigean and phreatic species. The hyporheic microbiocenose consists in bacteria, archaea, protozoa and fungi. The HZ provides several ecosystem services, playing a pivotal role in mediating exchange processes, including both matter and energy, between surface and subterranean ecosystems, functioning as regulator of water flow, benthic invertebrates refuge and place of storage, source and transformation of organic matter. The hyporheic zone is one of the most threatened aquatic environments, being strongly influenced by human activities, and the least protected by legislation worldwide. Its maintenance and conservation is compelling in order to preserve the ecological interconnectivity among the three spatial dimensions of the aquatic environment. Although several researchers addressed the importance of the hyporheic zone early, and most contemporary stream ecosystem models explicitly include it, very little is known about the HZ of Neotropical regions. From a biological standpoint, hyporheos fauna in Neotropical regions are still largely underestimated. This review focuses on a brief presentation of the hyporheic zone and its functions and significance as an ecotone. We also highlighted the key aspects considering also the current status of research in Neotropical regions.
    Brazilian Journal of Biology 12/2015;
  • Brazilian Journal of Biology 01/2015;
  • [Show abstract] [Hide abstract]
    ABSTRACT: The gempylid Nesiarchus nasutus is reported for the first time from Argentinean waters, the southernmost occurrence of the species in the Southwestern Atlantic. This suggests that the fluctuating environmental characteristics of the area would be proper for the presence of tropical and subtropical species.
    Brazilian Journal of Biology 10/2014;