Results 21 to 30 of about 11,311 (242)

Metal concentrations (Fe and Zn) in Macrobrachium amazonicum from Brazilian Amazon rivers. [PDF]

open access: yesObservatorio de la Economía Latinoamericana
O objetivo desse trabalho foi analisar a contaminação por ferro (Fe) e zinco (Zn) no camarão Macrobrachcium amazonicum na região da foz do Rio Amazonas no Estado do Amapá, tendo em vista as atividades de aquicultura e pesca. Foram utilizados 90 camarões,
COSTA, D. P. da   +5 more
core   +2 more sources

Identification and Validation of Tissue-Specific Housekeeping Markers for the Amazon River Prawn Macrobrachium amazonicum (Heller, 1862). [PDF]

open access: yesGenes (Basel)
Background/Objectives: The selection and validation of species-specific housekeeping genes (HKGs) have become increasingly common in functional genomics, with application of quantitative Polymerase Chain Reaction (qPCR) or cDNA-based qPCR (RT-qPCR ...
Lima GM   +11 more
europepmc   +2 more sources

Global consequences of dam-induced river fragmentation on diadromous migrants: a systematic review and meta-analysis. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT The global proliferation of dams has altered flow and sediment regimes in rivers, presenting a major threat to freshwater biodiversity. Diadromous species, such as fishes, decapod crustaceans and gastropods, are particularly susceptible to fragmentation because dams obstruct their breeding migrations between coastal waters and rivers. Although
Chan JCF, Lam BYK, Dudgeon D, Liew JH.
europepmc   +2 more sources

Population structure and relative growth of the Amazon shrimp Macrobrachium amazonicum (Heller, 1862) (Decapoda: Palaemonidae) on two islands in the fluvial-estuarine plain of the Brazilian Amazon [PDF]

open access: yesNauplius
This study aimed to describe the population structure of the Amazon shrimp Macrobrachium amazonicum, as well as their relative growth between the length of the cephalothorax and the total length, and between the length of the cephalothorax and the total ...
Priscila Sousa Vilela da Nóbrega   +2 more
doaj   +2 more sources

In Silico Identification of the Laccase-Encoding Gene in the Transcriptome of the Amazon River Prawn Macrobrachium amazonicum (Heller, 1862). [PDF]

open access: yesGenes (Basel)
Background: Macrobrachium amazonicum is an opportunistic and omnivorous species that primarily feeds on plant material. Recent studies have shown that Endo-β-1,4-glucanase and Endo-β-1,4-mannanase are expressed in the transcriptome of adult specimens ...
Lima GM   +6 more
europepmc   +2 more sources

O DESENVOLVIMENTO OVOCITÁRIO EM Macrobrachium amazonicum(Heller, 1862)(CRUSTACEA: DECAPODA: PALAEMONIDAE), CAMARÃO DULCÍCOLA DA REGIÃO AMAZÔNICA [PDF]

open access: yesActa Amazonica, 1993
É descrito o desenvolvimento ovocitário em Macrobrachium amazonicum(Heller, 1862), um camarão dulcícola da família Palaemonidae da Amazônia Central. O seu desenvolvimento é semelhante ao de Macrobrachium acanthurus(Wiegmann, 1836).
Paulo de Tarso da C. CHAVES   +1 more
doaj   +1 more source

Growth performance and gene expression of FAS, CPT1, G6P, and HK in juveniles of the freshwater prawn, Macrobrachium acanthurus, fed diets with different levels of protein, lipids, and carbohydrates

open access: yesJournal of the World Aquaculture Society, Volume 54, Issue 6, Page 1644-1658, December 2023., 2023
Abstract A feeding trial with Macrobrachium acanthurus juveniles was performed to determine growth performance and utilization of diets varying in protein, lipid, and carbohydrate level. Twelve diets were formulated with three levels of protein (P) and supplemented with different proportions of lipids (L) and carbohydrates (C): P30‐L20‐C8, P30‐L15‐C19,
Susana Alejandra Frías Gómez   +3 more
wiley   +1 more source

Consumo de oxigênio em Macrobrachium amazonicum (Heller, 1862). Efeito da saturação de oxigênio dissolvido () [PDF]

open access: yesActa Amazonica, 1976
Resumo Foram feitas medidas de consumo de oxigênio em Macrobrachium amazonicum (Heller, 1862) em diferentes concentrações de oxigênio dissolvido. Os dados obtidos indicaram adaptação respiratória desta espécie, no sentido da diminuição do consumo para ...
Lélio Favaretto   +2 more
doaj   +1 more source

Effect of Diets Supplemented With Yeast, Chitin, and Chitosan on the Growth, Immune, and Antioxidant Responses of the Freshwater Prawn Cryphiops (Cryphiops) caementarius. [PDF]

open access: yesAquac Nutr
The purpose of the present research was to evaluate the effect of diets supplemented with activated yeast, crude chitin, and chitosan on the growth, immune, and antioxidant response of freshwater prawn Cryphiops (Cryphiops) caementarius. Adult male prawns were kept in individual culture vessels installed in aquarium tanks.
Reyes-Avalos W   +5 more
europepmc   +2 more sources

Yolk resorption and larval development in the brackish river prawn Macrobrachium macrobrachion under laboratory conditions: Perspectives for aquaculture

open access: yesJournal of the World Aquaculture Society, Volume 54, Issue 6, Page 1659-1676, December 2023., 2023
Abstract Macrobrachium macrobrachion is an African native brackish river prawn with a high commercial value. Currently, there is little information on the post‐larval production of this species. Two experiments were conducted in the laboratory to develop production techniques for this species.
Guillaume Koussovi   +6 more
wiley   +1 more source

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