Results 51 to 60 of about 582 (123)

Long‐term interventions by conservation and development projects support successful recovery of tropical peatlands in Amazonia

open access: yesPeople and Nature, Volume 7, Issue 4, Page 871-886, April 2025.
Abstract Rural communities in Amazonia rely on harvesting Mauritia flexuosa fruit, a dominant peatland palm, for their subsistence and income. However, these palms are felled to harvest the fruits, which has led to reduced resource availability due to the pressure exerted by the increasing fruit demand.
Eurídice N. Honorio Coronado   +24 more
wiley   +1 more source

Infecção e susceptibilidade de três espécies de peixe do rio Paraná, Presidente Epitácio, Estado de São Paulo, Brasil, a larvas de Contracaecum sp. (Nematoda: Anisakidae) - DOI: 10.4025/actascianimsci.v25i1.2096

open access: yesActa Scientiarum: Animal Sciences, 2008
Estudou-se a infecção por Contracaecum sp. (Nematoda: Anisakidae) em tucunarés (Cichla ocellaris), corvinas (Plagioscion squamosissimus) e traíras (Hoplias malabaricus) provenientes do rio Paraná próximo à cidade de Presidente Epitácio, região ainda não ...
Maurício Laterça Martins   +4 more
doaj   +1 more source

A new sympatric region for distinct karyotypic forms of Hoplias malabaricus (Pisces, Erythrinidae)

open access: yesBrazilian Journal of Biology
Specimens of Hoplias malabaricus from Lagoa Carioca, an isolated lake of the Rio Doce State Park (state of Minas Gerais, Brazil), were cytogenetically studied.
G. G. Born, L. A. C. Bertollo
doaj   +1 more source

Isoform expression in the multiple soluble malate dehydrogenase of Hoplias malabaricus (Erythrinidae, Characiformes)

open access: yesBrazilian Journal of Biology, 2003
Kinetic properties and thermal stabilities of Hoplias malabaricus liver and skeletal muscle unfractionated malate dehydrogenase (MDH, EC 1.1.1.37) and its isolated isoforms were analyzed to further study the possible sMDH-A* locus duplication evolved ...
Aquino-Silva M. R.   +2 more
doaj  

Structure of the parasites communities in two Erythrinidae fish from Amazon river system (Brazil)

open access: yesRevista Brasileira de Parasitologia Veterinária
This study compared the parasite communities of Hoplias malabaricus and Hoplerythrinus unitaeniatus from Amazon river system. Hoplias malabaricus were infected by Ichthyophthirius multifiliis, Piscinoodinium pillulare, Tetrahymena sp., Urocleidoides ...
Natália Milhomem Alcântara   +1 more
doaj   +1 more source

Sazonalidade de larvas de Eustrongylides sp. (Nematoda: Dioctophymatidae) em peixes do Rio Paraná, Sudeste do Brasil

open access: yesBoletim do Instituto de Pesca, 2018
Este estudo avaliou a infecção com larvas de Eustrongylides sp. (Nematoda: Dioctophymatidae) nas espécies Cichla piquiti, Plagioscion squamosissimus e Hoplias malabaricus capturadas no Rio Paraná, próximo í­Â  Cidade de Presidente Epitácio, Estado de ...
Maurício Laterça MARTINS   +4 more
doaj  

Profile of micronucleus frequencies and DNA damage in different species of fish in a eutrophic tropical lake

open access: yesGenetics and Molecular Biology, 2009
Lake Paranoá is a tropical reservoir for the City of Brasilia, which became eutrophic due to inadequate sewage treatment associated with intensive population growth.
Cesar K. Grisolia   +5 more
doaj  

Effects of food deprivation in muscle structure and composition of traíra (Hoplias malabaricus): potential implications on flesh quality

open access: yesBrazilian Archives of Biology and Technology, 2009
Hoplias malabaricus (traíra) were experimentally starved (0 to 240 days) and subsequently re-fed for 30 days (after 90 and 240-d fasting). Long-term starvation produced minor changes in muscle composition, but shrinkage of muscle fibres was a conspicuous
Flavia Sant'Anna Rios   +4 more
doaj   +1 more source

Distribution pattern of two fish species in a coastal stream in Southeast Brazil

open access: yesBrazilian Journal of Biology, 2002
Longitudinal distribution of Mimagoniates microlepis and Hoplias malabaricus was analyzed in a coastal stream system in Southeast Brazil. Six sites were sampled by electrofishing in seven months, from July 94 to July 95. Densities of M. microlepis, and H.
MAZZONI R., IGLESIAS-RIOS R.
doaj  

Pleistocene karyotypic divergence in Hoplias malabaricus (Bloch, 1794) (Teleostei: Erythrinidae) populations in southeastern Brazil

open access: yesNeotropical Ichthyology, 2011
The lacustrine system of the middle rio Doce basin is considered a paradigm of Pleistocene geomorphology. In these lakes, two Hoplias malabaricus karyomorphs (2n = 42A and 2n = 42B) live in sintopy in Carioca Lake.
Uedson Pereira Jacobina   +2 more
doaj  

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