Results 41 to 50 of about 157 (134)

Contaminação por micobacteriose em peixe ornamental: Xiphophorus maculatus / Mycobacterial Contamination in Ornamental Fish: Xiphophorus maculatus [PDF]

open access: yesBrazilian Journal of Development, 2021
Humberto Atílio Grassi   +7 more
openaire   +1 more source

A new species of Peckoltia (Siluriformes, Loricariidae) from the rapids of the Rio Tocantins‐Araguaia basin, Brazil

open access: yesJournal of Fish Biology, Volume 108, Issue 1, Page 351-360, January 2026.
Abstract Here, we describe a new species of Peckoltia (Loricariidae; Hypostominae) from the rapids of the Rio Tocantins‐Araguaia basin, previously identified as Peckoltia vittata, using an integrative taxonomy approach. The new species is distinguished from congeners by ventral region presenting diffuse stripes on surface, not presenting spots or ...
Felipe Arian Andrade de Araújo   +3 more
wiley   +1 more source

Production of Activated Carbon From Grape Stems After Tannin Extraction: An Integrated Valorization Approach

open access: yesCLEAN – Soil, Air, Water, Volume 53, Issue 12, December 2025.
Grape stems offer dual valorization potential: as a tannin source for coagulant synthesis and as a precursor for activated carbon production. The process utilizes the residual biomass after tannin extraction, and adsorption tests demonstrate that this adsorbent is competitive with others reported in the literature.
Cristiane Lisboa Giroletti   +6 more
wiley   +1 more source

Uso do eugenol em bettas: estudo de diferentes concentrações e administrações sucessivas

open access: yesBoletim do Instituto de Pesca, 2018
O objetivo deste estudo foi avaliar o efeito de diferentes concentrações e da administração sucessiva de eugenol sobre a resposta anestésica em bettas (Betta splendens), sendo realizados dois experimentos.
Thiago El Hadi Perez FABREGAT   +3 more
doaj  

DINÂMICA DE PRODUÇÃO DE PEIXE ORNAMENTAL DO ALTO E MÉDIO RIO NEGRO

open access: yes, 2009
This study aimed to analyze the changes in the production of ornamental fish in the area of Barcelos, primary fish trade place of the high and middle Rio Negro. For this, a survey of ornamental fish´s shipments in the local port was madden, through a review of the permanent production and local exportation records of the Piaba Project over the past ...
openaire   +1 more source

Amazonian fish migration as a social–cultural–ecological process

open access: yesPeople and Nature, Volume 7, Issue 12, Page 3297-3312, December 2025.
Abstract In this study, we highlight the rich perspectives and explanations of fish migration held by Indigenous groups across the Amazon. We present the aspects of Indigenous cosmological stories, drawing from our exploratory review of cultural ethnographies and grey literature, as well as the authors' own experiences. We ask, how do Amazonian peoples
LuLu Victoria‐Lacy   +6 more
wiley   +1 more source

Confronting Episodic vs. Continuous Heat Sources in Long‐Lived Hot Orogens: Insights From Petrochronological Studies in the Nova Venecia Complex, Araçuaí Orogen (SE Brazil)

open access: yesJournal of Metamorphic Geology, Volume 43, Issue 9, Page 863-890, December 2025.
ABSTRACT Orogenic belts that sustain elevated temperatures at intermediate crustal depths for tens of millions of years are known as hot orogens. The evolution of these hot orogens is largely influenced by thermal maturation, primarily driven by the distribution of heat‐producing elements (HPEs), such as K, Th and U in the overthickened crust.
Lucas R. Schiavetti   +6 more
wiley   +1 more source

Isolation and characterization of hemolytic bacteria Fish disc and Neon Rainbow
Isolamento e caracterização de bactérias hemolíticas de Acará Disco e Neon Arco-Íris

open access: yesSemina: Ciências Agrárias, 2012
The aim of this study was to isolate, identify and determine the ability of potential pathogenic bacteria hemolytic mite Disco (Symphysodon discus) and Neon Rainbow (Melanotaenia praecox), and define which of the antibiotic Trimethoprim, Florfenicol ...
José Luiz Pedreira Mouriño   +4 more
doaj   +1 more source

Alteration of cleaner wrasse cognition and brain morphology under marine heatwaves

open access: yesFunctional Ecology, Volume 39, Issue 8, Page 1894-1905, August 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Heatwaves, exacerbated by global warming, are progressively affecting various ecosystems, with coral reefs among the most susceptible. Within these ecosystems, cleaner wrasses (Labroides dimidiatus) engage in cooperative interactions with client fish by removing ...
Beatriz Pereira   +3 more
wiley   +1 more source

YOLK CONSUMPTION DURING EMBRYONARY DEVELOPMENT OF SALMON-RED RAINBOWFISH, Glossolepis incisus. WEBER 1907 (Melanotaeniidae) CONSUMO DE VITELO DURANTE O DESENVOLVIMENTO EMBRIONÁRIO DE MELANOTÊNIA-MAÇÃ, Glossolepis incisus, WEBER 1907 (Melanotaeniidae)

open access: yesCiência Animal Brasileira, 2009
<p class="MsoNormal" style="line-height: 150%; text-align: justify">The consumption of yolk on development of embryos of the salmon-red rainbowfish (Glossolepis incisus) was examined under controlled hatchery conditions.
Douglas Cruz Mattos   +5 more
doaj  

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