Results 61 to 70 of about 1,763 (196)

Climate Change Will Enhance Hypercapnic Hypoxia Threatening Mangrove Habitats

open access: yesGeophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Mangroves host many marine species and support fisheries in developing (sub)tropical countries. The suitability of mangrove habitats depends strongly thier the water chemistry. Here, we show how global warming and rising atmospheric CO2 will reduce dissolved oxygen and increase CO2 in mangrove waters.
Gloria M. S. Reithmaier   +4 more
wiley   +1 more source

Tucurui dam and the population of the prawn Macrobrachium amazonicum int the Lower Tocantins (Pa-Brazil) : a four-year study [PDF]

open access: yes, 1991
A four-year survey of the prawn #Macrobrachium amazonicum$ (Heller, 1862) on the Tocantins river studies the short-term impact of the Tucurui hydroelectric project on downstream fishery and reservoir populations.
Odinetz Collart, Olga
core  

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

open access: yesJournal 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.   +1 more
openaire   +2 more sources

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

open access: yesEvolutionary 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   +5 more
wiley   +1 more source

DENSIDADE DE ESTOCAGEM PARA PRODUÇÃO DE ACARÁ-BANDEIRA EM VIVEIROS ESCAVADOS EM POLICULTIVO COM CAMARÃO-DA-AMAZÔNIA

open access: yesRevista Caatinga, 2010
The aim of this study was to evaluate the production of Freshwater Angelfish (Pterophyllum scalare) in different stocking densities in cages polycultured with Amazon River Prawn (Macrobrachium amazonicum).
FELIPE DE AZEVEDO SILVA RIBEIRO   +3 more
doaj  

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

open access: yesIET 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   +3 more
wiley   +1 more source

Macrobrachium amazonicum: an alternative for microbiological monitoring of aquatic environments in Brazil

open access: yesCiência Rural, 2014
This study aimed to evaluate the role of the Amazon River prawn, Macrobrachium amazonicum, as carrier of Candida spp., by analyzing the correlation between Candida spp. from these prawns and their environment (surface water and sediment), through M13-PCR
Raimunda Sâmia Nogueira Brilhante   +12 more
doaj   +1 more source

Spread of Amazonian Freshwater Fishes Beyond Their Native Ranges

open access: yesFish 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   +8 more
wiley   +1 more source

Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures

open access: yesJournal of Fish Biology, Volume 108, Issue 1, Page 69-85, January 2026.
Abstract The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub‐middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the population structure of this species along its longitudinal profile, a total of 150 individuals (50 fish per ...
F. L. Freitas   +4 more
wiley   +1 more source

Temporal variation in the water quality of ponds and effluent of grow-out ponds of Amazon River prawn Macrobrachium amazonicum

open access: yesRevista Peruana de Biología, 2013
This study was conducted in the Crustacean Sector of the Aquaculture Center (CAUNESP) at the São Paulo State University, Jaboticabal (21 ° 15’22”S and 48 ° 18’48”W) São Paulo, Brazil, from December 2003 to May 2004.
Erlei Cassiano Keppeler   +2 more
doaj   +1 more source

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