Results 151 to 159 of about 538 (159)

Hematological responses of the Neotropical teleost matrinxã (Brycon cephalus) to environmental nitrite

Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2004
Environmental increase in nitrite impairs the function of several aquatic species, including fishes. Nitrite reacts with hemoglobin yielding the non-functional methemoglobin (metHb), and many physiological disturbances can arise. The physiological mechanisms to cope with nitrite are still unclear in fish.
Ive M, Avilez, Alexandre E, Altran, Lúcia H, Aguiar, Gilberto, Moraes   +3 more
openaire   +2 more sources

Social challenge increases cortisol and hypothalamic monoamine levels in matrinxã (Brycon amazonicus)

Fish Physiology and Biochemistry, 2015
The neural circuitry for social behavior and aggression appears to be evolutionarily conserved across the vertebrate subphylum and involves a complex neural network that includes the hypothalamus as a key structure. In the present study, we evaluated the changes in monoamine levels in the hypothalamus and on serum cortisol and plasma glucose of ...
Wolkers, Carla Patrícia Bejo, Serra, Mônica, Urbinati, Elisabeth Criscuolo   +2 more
openaire   +3 more sources

Social relationship as inducer of immunological and stress responses in matrinxã (Brycon amazonicus)

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2009
Matrinxã (Brycon amazonicus) is a freshwater neotropical fish species with a social interaction and aggressive behavior, especially in crowded environments. This species' social structure is established by agonistic interactions, which increase significantly at the fifth hour, when compared to the first and second hours of confinement, when each ...
Francielle Bonet, Ferraz, Levy Carvalho, Gomes   +1 more
openaire   +2 more sources

Cadmium-induced disruption of environmental exploration and chemical communication in matrinxã, Brycon amazonicus

Aquatic Toxicology, 2008
The effects of cadmium exposure on both environment exploration and behavioral responses induced by alarm substance in matrinxã (Brycon amazonicus), a fish species endemic to the Amazon basin, were investigated. Fish exposed to 9.04+/-0.07 microg/L waterborne cadmium for 96h followed by 24h depuration period in clean water, were video-recorded for 15 ...
Honda, Rubens Tomio, Fernandes-De-Castilho, Marisa, Val, Adalberto Luis   +2 more
openaire   +3 more sources

Light and electron microscopy oogenesis in matrinxã, Brycon cephalus.

Journal of submicroscopic cytology and pathology, 2003
Oocyte development has been divided into 5 distinct stages in the reared matrinxã, Brycon cephalus, based on morphological criteria by light and transmission electron microscopy: I) chromatin-nucleolus; II) perinucleolar; III) cortical alveoli; IV) vitellogenesis; V) final maturation.
E, Romagosa, M I, Borella, M Y, Narahara, N, Fenerich-Verani   +3 more
openaire   +1 more source

Transport stress in matrinxã, Brycon cephalus (Teleostei: Characidae), at different densities

Aquaculture International, 2002
Matrinxa, Brycon cephalus, is a nativeteleost fish from the Amazon Basin, and is of economic importance forcultivation for food and sport in Brazil. Mortality losses due to handling andtransport of this stenohaline freshwater species are common. The effects oftransportation at different densities on the biochemical stress responses ofmatrinxa (mean ...
Carneiro, PCF, Urbinati, Elisabeth Criscuolo   +1 more
openaire   +2 more sources

PRÁTICAS REPRODUTIVAS DE ESPÉCIES AMAZÔNICAS EM CATIVEIRO: TAMBAQUI E MATRINXÃ

2021
Alzira Miranda de Oliveira, Alexandre Honczaryk, Aline Telles Lima, Alana Cristina Vinhote da Silva, Carlos Henrique dos Anjos dos Santos, Rafael Yutaka Kuradomi, Vivianne da Silva Fonseca   +6 more
openaire   +1 more source

Parasitoses e bacterioses em matrinxã Brycon amazonicus: revisão bibliográfica

Fernando Gabriel Souza de Oliveira, Marcos do Prado Sotero   +1 more
openaire   +1 more source

Effect of incorporating probiotics into the diet of matrinxã (Brycon amazonicus) breeders

Journal of Applied Ichthyology, 2011
D. C. Dias, A. F. G. Leonardo, L. Tachibana, C. F. Corrêa, I. C. A. C. Bordon, E. Romagosa, M. J. T. Ranzani-Paiva   +6 more
openaire   +1 more source