Results 71 to 80 of about 370 (173)

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

Journal 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, N. S. Pereira, P. B. Pinheiro, R. Schroeder, A. T. Correia   +4 more
wiley   +1 more source

Stocking density to produce freshwater angelfish polycultured in ponds with Amazon River Prawn

, 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).
Jorge, Paulo Henrique, Sakomura, Nilva Kazue, Fernandes, Joäo Batista Kochenborger [UNESP], Ribeiro, Felipe de Azevedo Silva   +3 more
core   +1 more source

Effects of Intensification of the Amazon River Prawn, Macrobrachium amazonicum, Grow‐out on Effluent Quality [PDF]

Journal of the World Aquaculture Society, 2013
AbstractStudies to determine suitable levels of intensification are essential for developing sustainable aquaculture. The objective of this study was to evaluate the quality of effluents discharged from ponds stocked with 10 (D10), 20 (D20), 40 (D40), and 80 (D80) postlarvae of Macrobrachium amazonicum/m2.
Kimpara, Janaina Mitsue, Moraes-Valenti, Patricia, Queiroz, Julio F., New, Michael Bernard   +3 more
openaire   +2 more sources

REPRODUCTIVE ASPECTS OF THE PRAWN Macrobrachium amazonicum IN A CONTINENTAL POPULATION LIVING DOWNSTREAM OF A HYDROELECTRIC DAM

Boletim do Instituto de Pesca, 2020
The migratory behavior of females of the freshwater prawn Macrobrachium amazonicum (Heller, 1862) can indicate a strategy that optimizes the population establishment. With this idea in mind, we evaluated the reproductive biology of M.
Lubia Maciel MIRANDA, Larissa Rosa RODRIGUES, João Alberto Farinelli PANTALEÃO, Luciana Segura de ANDRADE   +3 more
doaj  

Exploring Marine Mammal Cognition as a Conservation Tool

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Cognition is an animal's real‐time adaptation system for responding to change. Rapid environmental change, often anthropogenic, is expanding the range and severity of challenges confronting wild animals. Effective conservation requires a multifaceted approach that includes animals' capacities.
Gordon B. Bauer, Peter F. Cook, Heidi E. Harley, Jason Bruck, Mel Cosentino, Charles J. Deutsch, Nicola Erdsack, Wendi Fellner, Tabitha Gunnars, Heather Manitzas Hill, Sonia V. Kumar, Malin K. Lilley, Katherine A. McHugh, Jennifer Moore, Juliana R. Moron, Andrea Ravignani, Roger L. Reep, Athena M. Rycyk, Laela S. Sayigh, Anikó Szegedi, Christina Toms, Randall S. Wells   +21 more
wiley   +1 more source

First Time Isolation Report of Bioactive Flavonoids From Water Hyacinth (Eichhornia crassipes) Flower Associated With Pharmacological Investigation

BioMed Research International, Volume 2026, Issue 1, 2026.
Background Eichhornia crassipes (water hyacinth) is an invasive aquatic plant traditionally regarded as an environmental nuisance but increasingly recognized for its phytopharmacological potential. Objective This study is aimed at isolating, characterizing, and evaluating the pharmacological activities of bioactive compounds from the dichloromethane ...
Hasin Hasnat, Md. Mirazul Islam, Suriya Akter Shompa, Saima Jahan Riti, Safaet Alam, Tanoy Saha, Mohammad Abdur Rashid, Poorani Gurumallesh Prabu   +7 more
wiley   +1 more source

Microplastic Contamination in Salted Dried Beef

Scientifica, Volume 2026, Issue 1, 2026.
Plastic pollution is considered a major environmental challenge, and microplastics may pose risks to ecosystems and human health. This study investigated the presence of microplastics in salted dried beef sold in two cities in the Central Amazon, Brazil.
Brenda Serrão de Freitas, Gabriel dos Anjos Guimarães, Gustavo Frigi Perotti, Beatriz Rocha de Moraes, Rômulo Augusto Ando, Gustavo Yomar Hattori, Bruno Sampaio Sant’Anna, Mahmudul Hasan   +7 more
wiley   +1 more source

Chemical Composition, Antioxidant, and Antibacterial Activities of Mezilaurus duckei (Lauraceae)

Chemistry &Biodiversity, Volume 22, Issue 12, December 2025.
ABSTRACT Mezilaurus duckei, a Brazilian endemic tree species found exclusively in the Amazon Rainforest, is primarily exploited for timber in construction. Due to its endangered status, this study aimed to investigate the chemical profile and biological properties of the ethanolic extract and its phases derived from M. duckei leaves. Chemical profiling
Bruna S. Moroto, Valéria S. Gonçalves, David J. Machate, Talita V. Freire, Érica L. Santos, Flávio M. Alves, Ana C. Micheletti, Nídia C. Yoshida   +7 more
wiley   +1 more source

Brachyuran crustaceans from the bycatch of prawn fisheries at the mouth of the Amazon river

, 2013
The present paper is a pioneering study on the Brachyura bycatch associated with the artisan prawn fisheries at the mouth of the Amazon River. The study was conducted at four collection sites distributed along the mouth of the Amazon River between the ...
LIMA, J. de F., SILVA, T. C. da, SILVA, L. M. A. da, Silva, Luis Mauricio Abdon da, Silva, Thib\ue9rio Carvalho da, GARCIA, J. da S., Garcia, Jamile da Silva, Lima, J\uf4 de Farias   +7 more
core  

Energy budget in the lambari monoculture and integrated cultures with Amazon river prawn and curimbatá.

, 2021
O cultivo integrado melhora a utilização dos recursos naturais e associado ao uso racional da energia pode aumentar a sustentabilidade na aquicultura. O conhecimento do balanço energético demonstra como a energia em suas diferentes formas é distribuída ...
Mantoan, Paulo Victor Leme
core