Results 161 to 170 of about 922 (196)

Trends in Mercury Contamination Distribution among Human and Animal Populations in the Amazon Region. [PDF]

Toxics
Martoredjo I, Calvão Santos LB, Vilhena JCE, Rodrigues ABL, de Almeida A, Sousa Passos CJ, Florentino AC.   +6 more
europepmc   +1 more source

Reproductive cycle of Macrobrachium amazonicum females (Crustacea, Palaemonidae) [PDF]

Brazilian Journal of Biology, 2007
Macrobrachium amazonicum is considered a favorite Brazilian species of freshwater prawn for cultivation as a result of its quick development and because it is easy to maintain in captivity. The aim of this work is to describe the sexual cycle stages and determine maturation age of the female M. amazonicum, which was collected monthly from June, 2002 to
Sampaio, CMS., Silva, RR., Santos, JA., Sales, SP.   +3 more
exaly   +7 more sources

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Microplastic contamination in the freshwater shrimp Macrobrachium amazonicum in Itacoatiara, Amazonas, Brazil

Environmental Monitoring and Assessment, 2023
The present study analyzed the presence of microplastics (MPs) in the shrimp Macrobrachium amazonicum, which is an economically important food that is consumed in several regions of the Brazilian Amazon. A total of 600 specimens of M. amazonicum were captured at two sampling sites (urban and rural area).
Gabriel, Dos Anjos Guimarães, Beatriz Rocha, de Moraes, Rômulo Augusto, Ando, Bruno Sampaio, Sant'Anna, Gustavo Frigi, Perotti, Gustavo Yomar, Hattori   +5 more
openaire   +2 more sources

Survival ofMacrobrachium amazonicumembryos submitted to cooling

Zygote, 2017
SummaryCooling techniques have several applications for reproduction in aquaculture. However, few studies have sought to create protocols for cooling and cryopreservation ofMacrobrachium amazonicumembryos. Thus, the objective of this work was to verify the survival ofM.
Arthur Vinícius Lourenço, Ferreira, Moisés Fernandes, Martins, Míriam Luzia Nogueira, Martins de Sousa, Aldeney Andrade, Soares Filho, Célia Maria de Souza, Sampaio   +4 more
openaire   +2 more sources

Energy allocation trade-off in Macrobrachium amazonicum, with no resting stage

Zoologischer Anzeiger, 2021
Abstract In this study, we investigated which strategy Macrobrachium amazonicum populations use to survive in river and estuary environments. In each environment, abiotic factors were analyzed in situ, and ovigerous females and males of M. amazonicum specimens were captured.
Gicelle M.F. Silva, Yanne A. Mendes, Juliana C.D. Pantoja, Liziane B. Gonçalves, Luciano D. Queiroz, Rossineide M. Rocha, Maria A.P. Ferreira   +6 more
openaire   +1 more source

Effect of density on population development in the Amazon River prawn Macrobrachium amazonicum [PDF]

Aquatic Biology, 2010
The Amazon River prawn Macrobrachium amazonicum is widely distributed in lentic and lotic environments of South America, and shows different male morphotypes. In the present study, the effect of crowding on the general population structure of this species and its variation over time were evaluated.
Wagner C Valenti
exaly   +3 more sources

Adaptation to freshwater in the palaemonid shrimp Macrobrachium amazonicum: comparative ontogeny of osmoregulatory organs

Cell and Tissue Research, 2013
The ontogeny of osmoregulatory organs was studied in two geographically isolated populations of the palaemonid shrimp Macrobrachium amazonicum, one originating from the Amazon estuary (A) and the other from inland waters of the Pantanal (P) in northeastern and southwestern Brazil, respectively.
Viviane Boulo, Catherine Lorin-Nebel, Klaus Anger   +2 more
exaly   +3 more sources

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

Aquaculture 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)
Marcos Tavares-Dias, Tavares-Dias Marcos   +1 more
exaly   +2 more sources

Toxicity of cryoprotectants agents in freshwater prawn embryos of Macrobrachium amazonicum

Zygote, 2014
SummaryThe process of cooling and cryopreservation of prawn embryos is a viable alternative for a continuous supply of larvae for freshwater prawn farming ponds. However, studies involving the application of those techniques as well as on toxicity of cryoprotectants in freshwater prawn embryos are scarce.
Arthur Vinícius Lourenço, Ferreira, Elias José Teles, Castro, Mariana Silva Alves, Barbosa, Míriam Luzia Nogueira Martins, de Sousa, Manoel Paiva, de Araújo Neto, Aldeney Andrade Soares, Filho, Celia Maria, de Souza Sampaio   +6 more
openaire   +2 more sources

Macrobrachium amazonicum (Crustacea, Decapoda) Used to Biomonitor Mercury Contamination in Rivers

Archives of Environmental Contamination and Toxicology, 2019
Open-air landfill's may be are considered as a potential source of human environmental exposure to chemical substances such as, polycyclic aromatic hydrocarbons and toxic metals. Due to possible availability of mercury in the environment caused by open landfill emissions, this study evaluates the spatiality and seasonality of macroinvertebrates, in ...
Brenda Natasha Souza Costa, Helena Pereira Almeida, Bárbara Carolina Pereira da Silva, Lucas Gallat de Figueiredo, Adriana Marques de Oliveira, Marcelo de Oliveira Lima   +5 more
openaire   +2 more sources