Results 31 to 40 of about 1,764 (204)

PRESENCE OF METACERCARIAE OF Opisthorchis sp. BLANCHARD, 1895 (TREMATODA: OPISTHORCHIIDAE) IN NEW HOST Macrobrachium amazonicum (HELLER, 1862), FROM THE NORTHERN BRAZIL: AN EMERGING RISK TO HUMANS BY THE SHRIMP CONSUMPTION

open access: yesEnvironmental Smoke, 2023
Herein, we report the first observation of the metacercaria Opisthorchis sp. Blanchard, 1895 recovered from a new intermediate host Macrobrachium amazonicum (Heller, 1862), an important food resource from northern Brazil, emphasising the risk of ...
Déborah Elena Galvão Martins   +3 more
doaj   +1 more source

First report of the ectosymbiont Temnocephala sp. (Platyhelminthes: Rhabdocoela) on two Macrobrachium species (Decapoda: Caridea) from the Brazilian Amazon [PDF]

open access: yesNauplius
In aquatic environments, the presence of biological relationships occurring in different levels of the trophic chain is widely observed and reported in the literature, especially for invertebrates using other organisms as temporary or definitive hosts ...
Déborah Elena Galvão Martins   +3 more
doaj   +1 more source

Density and gender segregation effects in the culture of the caridean ornamental red cherry shrimp Neocaridina davidi Bouvier, 1904 (Caridea: Atyidae) [PDF]

open access: yes, 2017
The effect of density on growth, sex ratio, survival, and biochemical composition of the red cherry shrimp, Neocaridina davidi Bouvier, 1904, was studied to determine optimum rearing conditions in this ornamental species.
Delevati Colpo, Karine   +3 more
core   +2 more sources

From lecithotrophy to planktotrophy: ontogeny of larval feeding in the Amazon River prawn Macrobrachium amazonicum [PDF]

open access: yesAquatic Biology, 2009
During downstream transport from rivers to estuaries, early larval stages of the Amazon River prawn Macrobrachium amazonicum (Heller 1862) are likely exposed to planktonic food limita- tion. In the laboratory, we studied the effects of presence or absence of food on larval survival, moult- ing and biomass (dry mass, and content of carbon, hydrogen and ...
Anger, Klaus, Hayd, L.
openaire   +2 more sources

Effects of environmental light colors on the larviculture of the Amazon River prawn Macrobrachium amazonicum [PDF]

open access: yesAquaculture International, 2019
This study aimed to investigate the effects of red, yellow, green, violet, blue, and white light in Macrobrachium amazonicum larviculture. The trials were composed of six treatments (i.e., colors red, yellow, green, blue, violet, and white light in tanks) with four replicates each.
Argemiro Midonês Bastos   +2 more
openaire   +1 more source

Natural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus: Crustacea, Decapoda) in the estuary of the Amazon River [PDF]

open access: yesActa Amazonica, 2014
Macrobrachium carcinus is a Brazilian native prawn with recognized potential for use in aquaculture activities. However, there is little information about the natural diet and feeding habits of this species.
Jô de Farias Lima   +2 more
doaj   +1 more source

Effects of Ambient Nitrite on Amazon River Prawn, Macrobrachium amazonicum, larvae

open access: yesJournal of the World Aquaculture Society, 2014
AbstractThe effects of nitrite concentration on larval development of Amazon river prawn, Macrobrachium amazonicum, were studied in laboratory. In Experiment 1, larvae were reared in 600‐mL glass beakers filled with 300‐mL water with nitrite concentration of 0, 0.2, 0.4, 0.8 and 1.6 mg/L NO2‐N.
Hayd, Liliam A.   +2 more
openaire   +2 more sources

Digestive proteases from wild and farmed male morphotypes of the Amazon river prawn (Macrobrachium amazonicum) [PDF]

open access: yesJournal of Crustacean Biology, 2014
The aim of this study was to characterize digestive proteases from wild and farmed morphotypes in males of Macrobrachium amazonicum (Heller, 1862). The hepatopancreas of wild and earthen pond reared specimens were collected and homogenized. Unspecific activities of trypsin, chymotrypsin and leucine aminopeptidase were determined using specific ...
Silva Santos, Fabio Marcel da   +5 more
openaire   +2 more sources

Ecology and seasonal variation of parasites in wild Aequidens tetramerus, a Cichlidae from the Amazon. [PDF]

open access: yes, 2019
This study is the first investigation on seasonal dynamics of parasites component community of the Aequidens tetramerus from an Amazon River tributary, in Northern Brazil.
GONÇALVES, R. A.   +3 more
core   +1 more source

Ultrastructure of two microsporidians Inodosporus sp. and Myospora sp. co-infecting muscles of the Amazon River prawn Macrobrachium amazonicum (Heller, 1862)

open access: yesNauplius, 2021
In the present study, we describe a co-infection of two microsporidians within the abdominal muscle of the Amazon River prawn Macrobrachium amazonicum from Brazil, detected through light and transmission electron microscopy and histopathological analysis.
Lucas R.P. Paschoal   +5 more
doaj   +1 more source

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