Results 61 to 70 of about 370 (173)

Effect of Intensification on Grow Out of the Amazon River Prawn, Macrobrachium amazonicum

Journal of the World Aquaculture Society, 2007
Abstract The effects of intensification on growth, survival, productivity, population structure, and distribution of harvested biomass in individual size classes of Macrobrachium amazonicum in semi‐intensive culture were evaluated. Postlarvae (0.01 g) were stocked in 12 ponds at densities of 10, 20, 40, and 80/m2 (three replicates per treatment) and ...
Moraes-Valenti, Patricia M. C., Valenti, Wagner Cotroni   +1 more
openaire   +2 more sources

Effects of ammonia and nitrite on food consumption of the Amazon River prawn Macrobrachium amazonicum (Heller, 1862) postlarvae

Latin American Journal of Aquatic Research, 2021
Experiments were carried out to study the effects of ammonia and nitrite on food consumption of Macrobrachium amazonicum postlarvae. Postlarvae (average weight of 0.0625 g) were exposed during 21 days to four concentrations of total ammonia (0, 1.05, 2.1 and 4.2 mg. NH3+NH4+ L-1) and four concentrations of nitrite (0, 0.075, 0.15 and 0.30 mg N-NO2- L-1)
Bruno Ribeiro de Campos, Rafael Ortiz Kracizy, Plínio Schmidt Furtado, Izabel Volkweis Zadinelo, Eduardo Luis Cupertino Ballester   +4 more
openaire   +2 more sources

Landscape Genomics and Evolutionary History of Megamelus scutellaris, a Biocontrol Agent of the Invasive Water Hyacinth (Pontederia crassipes)

Evolutionary Applications, Volume 19, Issue 2, February 2026.
ABSTRACT Understanding the evolutionary history of biological control agents in their native ranges is crucial for improving their selection, establishment, and performance across environmentally diverse regions. Phytophagous insects that specialize on aquatic plants offer particularly valuable models, as their evolutionary trajectories may be shaped ...
Nicolas A. Salinas, Daniel Poveda‐Martínez, Marcela S. Rodriguero, Melissa C. Smith, María E. Brentassi, Alejandro J. Sosa   +5 more
wiley   +1 more source

Phosphorus Budget in Integrated Multitrophic Aquaculture Systems with Nile Tilapia, Oreochromis niloticus, and Amazon River Prawn, Macrobrachium amazonicum

, 2017
Integrated multitrophic aquaculture (IMTA) systems are designed mainly for efficient use of resources. Substrates added to aquaculture ponds provide space for periphyton to settle and recover nutrients, making these nutrients available to the species ...
Fernanda S. David, Danilo C. Proen?a
core   +2 more sources

Nitrogen Budget in Yellow-Tail Lambari Monoculture and Integrated Aquaculture

Fishes
This study quantified nitrogen (N) inputs by water, feed, animals, and atmospheric gas and outputs by water, harvested animals, sediments, and gas emissions in earthen ponds used for the monoculture and integrated cultures of yellow-tail lambari ...
Dalton Belmudes, Andre Z. Boaratti, Paulo V. L. Mantoan, Aline M. Marques, Julia R. C. Ferreira, Patricia Moraes-Valenti, Dallas L. Flickinger, Wagner C. Valenti   +7 more
doaj   +1 more source

YOLOViT‐DETECT: A Hybrid Approach for Real‐Time Fish Species Detection and Classification in Aquaculture

IET Image Processing, Volume 20, Issue 1, January/December 2026.
We propose YOLOViT‐DETECT, a hybrid model combining an enhanced YOLOv8 with a spatial attention module for fish detection and a ViT‐B/16 transformer for species classification. The method achieves high accuracy in challenging underwater environments, outperforming standalone models.
Mahdi Hamzaoui, Mohamed Ould‐Elhassen Aoueileyine, Imen Filali, Ridha Bouallegue   +3 more
wiley   +1 more source

Comparing environmental impacts of native and introduced freshwater prawn farming in Brazil and the influence of better effluent management using LCA

, 2015
Concern about environmental impacts of aquaculture and its interaction with natural resources is increasing. Thus, it is important for new production systems to use practices that reduce environmental impacts, such as choosing to farm native species from
Valenti, Wagner Cotroni, Santos, Alexandre Augusto Oliveira, Santos, A. A. O., Santos, Alexandre Augusto Oliveira [UNESP], Corson, Michael S., Aubin, Joel, Valenti, Wagner Cotroni [UNESP], Camargo, Antonio Fernando Monteiro [UNESP], Camargo, Antonio Fernando Monteiro, Valenti, W. C., Camargo, A. F. M.   +10 more
core   +1 more source

The influence of environmental variables in the reproductive performance of Macrobrachium amazonicum (Heller, 1862) (Caridea: Palaemonidae) females in a continental population

Anais da Academia Brasileira de Ciências
Macrobrachium amazonicum is a commercially important freshwater prawn with a high degree of reproductive plasticity. The species is classified into two groups: coastal populations, with larger individuals exhibiting high fecundity and needing brackish ...
JOÃO ALBERTO F. PANTALEÃO, ABNER CARVALHO-BATISTA, SARAH S.A. TEODORO, ROGÉRIO C. COSTA   +3 more
doaj   +1 more source

Spread of Amazonian Freshwater Fishes Beyond Their Native Ranges

Fish and Fisheries, Volume 27, Issue 1, Page 56-67, January 2026.
ABSTRACT The spread and establishment of Amazonian species outside their native ranges through activities such as sport fishing, aquaculture, and the ornamental fish industry may lead to ecological changes in recipient ecosystems. We investigated the global distribution of Amazonian freshwater fish (AFF) and conducted a case study in the upper Paraná ...
Aymar Orlandi Neto, Luiz Guilherme dos Santos Ribas, Lidiane Franceschini, João Henrique Pinheiro Dias, Hugo Marques, Igor Paiva Ramos, Lilian Casatti, Éder André Gubiani, Jean Ricardo Simões Vitule   +8 more
wiley   +1 more source

Spatial distribution of the amazon river prawn Macrobrachium Amazonicum (Heller, 1862) (Decapoda, Caridea, Palaemonidae) in two perennial creeks of an estuary on the northern coast of Brazil (Guajará Bay, Belém, Pará) Distribuição espacial do camarão-da-amazônia - Macrobrachium Amazonicum (Heller, 1862) (Decapoda, Caridea, Palaemonidae) em dois canais perenes de um estuário da costa norte do Brasil (Baía do Guajará - Belém, Pará, Brasil)

Brazilian Journal of Biology, 2011
Macrobrachium amazonicum is the most frequently consumed freshwater crustacean by river communities of the Amazon. Despite its relative abundance and vast knowledge on the species from data on cultivated specimens, little is known regarding its biology ...
BS. Bentes, JM. Martinelli, LS. Souza, DV. Cavalcante, MC. Almeida, VJ. Isaac   +5 more
doaj   +1 more source