Results 81 to 90 of about 304 (125)

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

Genetics 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, Carla L. G. Rivero, Fernando L. R. M. Starling, Izabel C. R. da Silva, Antonio C. Barbosa, Jose G. Dorea   +5 more
doaj  

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

Brazilian 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, Lucélia Donatti, Marisa Narciso Fernandes, Ana Lucia Kalinin, Francisco Tadeu Rantin   +4 more
doaj   +1 more source

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

Brazilian 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  

Comparison of the endoparasite fauna of Hoplias malabaricus and Hoplerythrinus unitaeniatus (Erythrinidae), sympatric hosts in the eastern Amazon region (Brazil)

Helminthologia, 2018
Hoplias malabaricus and Hoplerythrinus unitaeniatus are Erythrinidae family widely distributed in the Amazon River system of great value to both commercial and subsistence fishing for riverine populations.
Oliveira M. S. B., Corrêa L. Lima, Prestes L., Neves L. R., Brasiliense A. R. P., Ferreira D. O., Tavares-Dias M.   +6 more
doaj   +1 more source

Cytogenetic and DNA barcoding reveals high divergence within the trahira, Hoplias malabaricus (Characiformes: Erythrinidae) from the lower Amazon River

Neotropical Ichthyology
Molecular and cytogenetic data have provided evidence of cryptic speciation in the widespread South American trahira, Hoplias malabaricus. In the present study, karyotypes and DNA barcode sequences of specimens from seven populations inhabiting the lower
Diego Ferreira Marques, Fabíola Araújo dos Santos, Simoni Santos da Silva, Iracilda Sampaio, Luís Reginaldo Ribeiro Rodrigues   +4 more
doaj   +1 more source

Different feeding habits influence the activity of digestive enzymes in freshwater fish

Ciência Rural
: The aim of this study was to verify the activity of some digestive enzymes in four fish species with different feeding habits. Knowledge of these enzymatic activities can help us to understand the species' digestive processes.
Carolina Rosa Gioda, Alexandra Pretto, Carine de Souza Freitas, Jossiele Leitemperger, Vania Lucia Loro, Rafael Lazzari, Leandro Ademar Lissner, Bernardo Baldisserotto, Joseânia Salbego   +8 more
doaj   +1 more source

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

Neotropical 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, Edson Paiva, Jorge Abdala Dergam   +2 more
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Avaliação ectoparasitológica, hematológica e histopatológica de traíras Hoplias malabaricus Bloch, 1794 provenientes de açudes localizados no município de Sumé, estado da Paraíba

Pesquisa Veterinária Brasileira
Resumo: Hoplias malabaricus Bloch, 1794 é uma das espécies de peixes mais comumente encontrada nos açudes da Microrregião do Cariri Paraibano, todavia ainda não existem estudos na região sobre a sua fauna parasitária. Em virtude disso, o estudo objetivou
Maria G.S. Bernardino, Edijanio G. Silva, Tercio I.C. Bezerra, Ricardo B. Lucena, Fabiana Satake   +4 more
doaj   +1 more source

Population structure and stock assessment of Hoplias malabaricus (Characiformes: Erythrinidae) caught by artisanal fishermen in river-reservoir transition area in Brazil

Revista de Biología Tropical, 2011
Hoplias malabaricus is a viable economic alternative for artisanal fishermen who used to live on the banks of rivers that now are dammed in Brazil. In order to preserve the species’ natural stock, the main objectives of this study were to obtain bio ...
José Luís Costa Novaes, Edmir Daniel Carvalho   +1 more
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Ecología Trófica de Hoplias Malabaricus Malabaricus (Pisces, Erythrinidae)

Natura Neotropicalis, 2005
Liliana M. Rossi, Olga B. Oliveros
openaire   +1 more source