Results 31 to 40 of about 3,083 (161)

Joint effects of elevated copper and temperature in juvenile Tambaqui exposed in black and white waters of the Amazon

Journal of Fish Biology, EarlyView.
Abstract This study aimed to investigate how exposure to elevated water temperature and metal concentration jointly affect the physiology of Amazonian fish. Aboard a research vessel in the Amazon, we evaluated the effects of water temperature (river T°C at 31.5°C and a + 4°C increase to 35.5°C) and of 3‐h copper (Cu) exposure (up to 600 μg/L) in ...
Anne Crémazy, Carolyn Morris, Susana Braz‐Mota, Chris M. Wood, Rafael M. Duarte, Ora E. Johannsson, Adalberto L. Val   +6 more
wiley   +1 more source

Amazonian drought of 2023: Environmental conditions relevant to fishes

Journal of Fish Biology, EarlyView.
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

Bath Treatments With Emamectin Benzoate Control Dactylogyrideans Infecting Colossoma macropomum Gills Without Altering Physiology of This Host Fish

Journal of Fish Diseases, EarlyView.
ABSTRACT Intensification of fish aquaculture worldwide has led to severe problems of diseases caused by parasitic dactylogyrideans. In this study, the anti‐dactylogyridean efficacy of treating Colossoma macropomum with baths of emamectin benzoate (EMB) was investigated for the first time, along with the effects of this treatment on the haematology and ...
Raimundo Rosemiro de Jesus Baia, Marcela Nunes Videira, Amanda Mendes Pacheco, Eliane Tie Oba Yoshioka, Marcos Tavares‐Dias   +4 more
wiley   +1 more source

Ocular Morphology and Clinical Ophthalmic Parameters of Nile Tilapia Oreochromis niloticus

Veterinary Ophthalmology, EarlyView.
ABSTRACT Objective To describe the ocular morphological characteristics and establish clinical and ophthalmic reference standards for Nile tilapia. Animals Studied Fresh carcasses were used for diaphanization, optical and electron microscopy, and computed tomography analyses.
Dandara Franco Ferreira da Silva, Lucélia Gonçalves Vieira, Pedro Vale de Azevedo Brito, Sonia Nair Báo, Ingrid Gracielle Martins da Silva, Rodrigo Diana Navarro, Clarissa Machado de Carvalho, Paula Diniz Galera, Daniel Henrique Viana da Silva, Weslley de Souza Barbosa, Rosélia de Lima Sousa Araújo, Giane Regina Paludo, Liria Queiroz Luz Hirano   +12 more
wiley   +1 more source

Identification of glycoproteins in mucous cells of the gill epithelium of Colossoma macropomum after exposure to organophosphate

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
The use of organophosphates has been recommended for fish, especially the trichlorfon to control parasites. Colossoma macropomum were exposed to trichlorfon during 96 hours and of total number of mucous cells decreased in the number of cells when ...
S.E. Moron, P.R. Matos, A.T. Ramos, M.G.T. Gomes   +3 more
doaj   +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

Características hematológicas de teleósteos brasileiros. I. Série vermelha e dosagens de cortisol e glicose do plasma sangüíneo de espécimes de Colossoma macropomum em condições de cultivo - DOI: 10.4025/actascibiolsci.v20i0.4466

Acta Scientiarum: Biological Sciences, 2008
Foram utilizados no presente trabalho 30 exemplares sexualmente imaturos de Colossoma macropomum Cuvier, 1818 (Osteichthyes: Characidae) com 500 a 700g de peso total e 25,0 a 30,2cm de comprimento padrão, com aproximadamente um ano de idade.
Marcos Tavares-Dias, Elziane F. Silva Sandrim   +1 more
doaj   +1 more source

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

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

Análise qualitativa da comunidade fitoplanctônica de uma piscicultura em Alvorada d´Oeste, Rondônia, Brasil

Acta Agronómica, 2015
A piscicultura é um dos segmentos da produção animal que mais cresce no cenário mundial. O levantamento da comunidade fitoplanctônica nestes ambientes permite estabelecer formas de manejo mais eficientes. Objetivou-se com esta pesquisa realizar a análise
Rafaela Lemes da Costa, Fabiano Moreira Figueiredo, Márcia Bay, Cláudio Brandão de Queiroz, Fernanda Bay-Hurtado   +4 more
doaj   +1 more source