Results 71 to 80 of about 4,014 (212)

Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon

Journal of Fish Biology, Volume 108, Issue 3, Page 881-893, March 2026.
Abstract Siluriform fishes collected from the Rio Negro and Rio Solimões proved to be highly resistant to aquatic hypoxia. In all four species analysed in this study, aquatic oxygen consumption significantly decreased from normoxic levels at water PO2 values near 1 kPa. Air‐breathing activity was observed only in Sturisoma sp. (Rio Negro).
Bernd Pelster, Chris M. Wood, Adalberto Luis Val   +2 more
wiley   +1 more source

Amazonian drought of 2023: Environmental conditions relevant to fishes

Journal of Fish Biology, Volume 108, Issue 3, Page 803-823, March 2026.
Abstract This paper provides a platform for the following studies within this Special Issue. ‘Ecophysiology of fishes in the two great tributaries of the Amazon in the Anthropocene’. It documents the water quality conditions and accompanying zooplankton community structure and biomass relative to fish health in the Rio Negro and Rio Solimões during the
Ora E. Johannsson, Thiago L. Nascimento, Helen Agasild, Priit Zingel, Rafael M. Duarte, Gudrun de Boeck, Anne Cremazy, Jhonatan Mota da Silva, Carolyn Morris, Chris M. Wood, Adalberto L. Val   +10 more
wiley   +1 more source

Genetic variability of wild and captivity populations of Colossoma macropomum (Cuvier, 1818) - doi: 10.4025/actascibiolsci.v34i2.7149

Acta Scientiarum: Biological Sciences, 2011
Tambaqui (Colossoma macropomum) is among the most important fish species of the Amazon and one of the most cultivated in Brazil. In the present work we have evaluated the genetic variability of wild and captivity populations of C. macropomum.
Carlos Henrique dos Anjos dos Santos, Marco Aurélio de Brito Leitão, Carolina Fernandes Silva de Sousa, Givanildo Ximenes Santana, Maria de Nazaré Paula-Silva, Vera Maria Fonseca de Almeida-Val   +5 more
doaj   +1 more source

Importance and spatial patterns of invisible fisheries in Amazonian clear‐water rivers as revealed by fisher knowledge and collaboration

Conservation Biology, Volume 40, Issue 1, February 2026.
The graphical abstract highlights the research collaboration with fishers through interviews to record fishers' knowledge and participatory monitoring, to provide data on small‐scale fisheries in three clear water rivers (Trombetas, Tapajos and Tocantins).
Renato A. M. Silvano, Kaluan C. Vieira, Paula E. R. Pereyra, Luís H. Tomazoni‐Silva, Ivan A. Alves, Jaqueline G. Bezerra, Márcia C. F. Dutra, Friedrich W. Keppeler, Carolina B. Nunes, Cristiane V. Cunha, Gustavo Hallwass   +10 more
wiley   +1 more source

Anthropogenic Barriers Limit Fish Access to Essential Habitats in the Amazon in the Face of Climate Change

Global Change Biology, Volume 32, Issue 1, January 2026.
Rivers across the Amazon Basin are increasingly threatened by climate change and dam construction, which restrict fish movements. We combined climate projections with river‐network connectivity analyses to identify where suitable habitats for frugivorous and socioeconomically important fish are likely to persist and where access may be lost due to ...
Kátia Yasuko Yofukuji, Thomaz Mansini Carrenho Fabrin, Bruno Henrique Mioto Stabile, Angelo Antonio Agostinho, Céline Jézéquel, Valéria Flávia Batista‐Silva, Luiz Fernando Esser, José Hilário Delconte Ferreira, Reginaldo Ré, Pablo A. Tedesco, João Carlos Azevedo, Dayani Bailly   +11 more
wiley   +1 more source

Genetic variability of tambaqui broodstocks in the Brazilian state of Pará [PDF]

Revista Brasileira de Zootecnia, 2019
ABSTRACT The present study evaluated the genetic variability of the broodstocks of tambaqui hatcheries in the Brazilian state of Pará. Samples were obtained from the caudal fin of 110 broodstocks from one hatchery in each of four municipalities (Santarém, Peixe-Boi, Breu-Branco, and Ulianópolis), representing all the individuals of each hatchery stock.
Leandro de Araújo Ferreira, Paola Fabiana Fazzi-Gomes, Sávio Guerreiro, Marília Danyelle Nunes Rodrigues, Ândrea Kely Ribeiro-dos-Santos, Sidney Santos, Igor Hamoy   +6 more
openaire   +4 more sources

Stress Nutrition in Aquatic Animals: From Definition to Practice

Reviews in Aquaculture, Volume 18, Issue 1, January 2026.
ABSTRACT Aquaculture faces numerous challenges, with stress being one of the major issues that lead to growth loss, metabolic disorders, weakened immunity, redox imbalance, and organ damage in aquatic animals. Nutritional intervention is one of the effective strategies to address these problems. Traditional research has primarily focused on the impacts
Jian Zhang, Qianwen Ding, Ruobing Lou, Yuanpei Zhang, Yuanyuan Yao, Yalin Yang, Zhen Zhang, Chao Ran, Zhigang Zhou   +8 more
wiley   +1 more source

Projeto Tec Rede: tecnologias para produção de tambaqui em tanque-rede. [PDF]

, 2017
Plano Gerencial. Desempenho produtivo de tambaqui em sistemas de tanque-rede. Sanidade de tambaqui em sistema de tanque-rede e impactos ambientais. Aproveitamento agroindustrial do tambaqui. Ações integradas de comunicação e Transferência de Tecnologia.1
TAVARES-DIAS, M., YOSHIOKA, E. T. O.
core   +1 more source

Monoterpenes: Functional Additives for Reducing Antibiotics in Aquaculture

Reviews in Aquaculture, Volume 18, Issue 1, January 2026.
ABSTRACT Aquaculture is a rapidly growing industry that supplies fish for global consumption. However, the intensive production practices have resulted in disease outbreaks, largely driven by the misuse of antibiotics. Natural alternatives, such as monoterpenes, which are biocompounds derived from essential oils obtained from plants like thyme and ...
Danilo Vitor Vilhena Batista, Barbara Silveira Souza, Caio Francisco Santana Farias, Ana Paula de Souza, Alexandre Vaz da Silva, Emilly Monteiro Lopes, Elenice Martins Brasil, Maurício Laterça Martins, José Luiz Pedreira Mouriño, Marco Shizuo Owatari   +9 more
wiley   +1 more source

Tambaqui fisch systems: water assessment and applications

, 2020
O peixe é a fonte de proteína animal mais consumida no mundo, com expectativa de aumento devido ao crescimento populacional e a busca por alimentos saudáveis. A grande área territorial brasileira e o maior volume de água doce do mundo favorecem o cultivo
Conde, Thassiane Telles
core