Results 31 to 40 of about 1,640 (156)

Estoque de Carbono e Nitrogênio e Abundância Natural de δ13C na Estação Ecológica de Pirapitinga, MG [PDF]

Floresta e Ambiente, 2017
RESUMO A avaliação integrada dos atributos físicos, estoque de carbono (EstC) e de nitrogênio (EstN) além da abundância natural de δ13C do solo se mostram eficazes na detecção de mudanças ocorridas na paisagem. Portanto, o objetivo deste estudo foi avaliar e comparar a densidade do solo, EstC, EstN e abundância natural de δ13C em perfis de solo de ...
Carvalho, Daniel Costa de, Pereira, Marcos Gervasio, Guareschi, Roni Fernandes, Maranhão, Deyvid Diego Carvalho   +3 more
openaire   +4 more sources

A Revision of the Neotropical Orb‐Weaving Spider Genus Scoloderus (Araneae: Araneidae)

Psyche: A Journal of Entomology, Volume 102, Issue 1-2, Page 49-72, 1995., 1995
More than one‐fourth of the spiders examined for this revision were collected since the neotropical genus Scoloderus was revised in 1976. Thirteen names have been proposed for what appear to be five valid species (Scoloderus cordatus, S. gibber, S. nigriceps, S. tuberculifer, and S. ackerlyi).
M. Brian Traw
wiley   +1 more source

Practical Diets Formulated With Different Plant‐Based Energy Ingredients Modulate Nutrient Utilization and Gut Morphology in Tambaqui (Colossoma macropomum)

Aquaculture Nutrition, Volume 2026, Issue 1, 2026.
Despite the increasing use of plant‐based energy ingredients in aquaculture, few studies have evaluated the digestibility of practical diets formulated with these ingredients in an integrated manner with the metabolic responses, intestinal health, and productive performance of fish. This limits the understanding of their nutritional effects. This study
Jeisson Emerson Casemiro Ferrari, Maria Karolaine Moriman Delgado, Gabriela Castellani Carli, Douglas de Souza Graciano, Jony Koji Dairiki, Leonardo Susumu Takahashi, Liqiao Chen   +6 more
wiley   +1 more source

Monitoring of Salmonella spp. in Native Fish Farms in the Pantanal and Cerrado Biomes, Brazil: Serotype Diversity, Antimicrobial Resistance Profiles, and Multivatiate Patterns 

Journal of Food Safety, Volume 45, Issue 6, December 2025.
This study investigated Salmonella spp. occurrence, serotypes, antimicrobial resistance, and associated environmental and management factors in 25 native fish farms located in the Pantanal and Cerrado biomes, Brazil. A total of 184 fish and environmental samples were analyzed using standardized methods and multivariate statistics. Salmonella spp.
Yuri Duarte Porto, Fabíola Helena dos Santos Fogaça, Wagner de Souza Tassinari, Adriana Oliveira Andrade, Adelino Cunha Neto, Luciano Carlos de Arruda, Jaqueline Oliveira dos Reis, Janine Passos Lima, Luciana Kimie Savay‐da‐Silva, Eduardo Eustáquio de Souza Figueiredo   +9 more
wiley   +1 more source

Impacts of Hydroelectric Dams on Amazonian Fisheries: Assessing Functional Attributes in the Madeira River

River Research and Applications, Volume 41, Issue 7, Page 1493-1502, September 2025.
ABSTRACT The Madeira River is one of the main tributaries of the Amazon Basin, supporting over 1300 known fish species. Fisheries in this region play a critical role for riverine populations, serving as a primary source of income and sustenance. In 2011, the construction of the Jirau and Santo Antônio hydroelectric dams (HEDs) was completed along the ...
Ana Laura Monteiro de Souza, Rogério Fonseca, Rangel Eduardo Santos, Raniere Garcez Costa Sousa, Felipe Micali Nuvoloni, Isys Nathyally de Lima Silva, Karen Sayuri Takano, Fabrício Berton Zanchi   +7 more
wiley   +1 more source

Histochemical and morphological features of biopsied and stripped oocytes from the Brazilian endangered teleost pirapitinga, Brycon nattereri (Characiformes) [PDF]

Zygote, 2014
SummaryThe aim of the present study was to characterize biopsied and stripped oocytes from the Brazilian endangered teleost pirapitinga (Brycon nattereri) using histochemical and morphological analyses. Biopsied oocytes had a mean diameter of 2.225 mm (modal diameter: 2.312 mm), complete vitellogenesis and a central or slightly eccentric nucleus ...
Maria, Alexandre Nizio, Orfão, Laura Helena, Rizzo, Elizete, Silveira, Alexandre Ninhaus, Viveiros, Ana Tereza de Mendonca   +4 more
openaire   +3 more sources

Effects of Environmentally Relevant Concentrations of Roundup on Oxidative‐Nitrative Stress, Cellular Apoptosis, Prooxidant‐Antioxidant Homeostasis, Renin and CYP1A Expressions in Goldfish: Molecular Mechanisms Underlying Kidney Damage During Roundup Exposure

Environmental Toxicology, Volume 40, Issue 5, Page 817-834, May 2025.
ABSTRACT Roundup is one of the most widely used glyphosate‐based harmful herbicides in the United States as well as globally, which poses a severe risk for terrestrial and aquatic organisms. In order to identify the detrimental effects of Roundup exposure in aquatic organisms, we investigated the environmentally relevant concentrations of Roundup ...
Md Imran Noor, Md Saydur Rahman
wiley   +1 more source

Quantifying Invasiveness Risk of Non‐Native Freshwater Fishes in South Korea Under a Changing Climate

Fisheries Management and Ecology, Volume 32, Issue 1, February 2025.
ABSTRACT Biological invasions pose a serious threat to native biodiversity, and climate change intensifies the risk of non‐native species invasion in human‐altered environments, particularly in freshwater ecosystems. In South Korean freshwaters, the number of non‐native fish species increased significantly since the early 1950s.
Baran Yoğurtçuoğlu, Ali Serhan Tarkan, Lorenzo Vilizzi   +2 more
wiley   +1 more source

Riscos genéticos da produção de híbridos de peixes nativos. [PDF]

, 2015
A produção de peixes nativos e seus híbridos chama a atenção daqueles que observam o Brasil como alvo de investimentos agropecuários e futura potência da aquicultura mundial.
ALVES, A. L., KIRSCHNIK, L. N. G., MORO, G. V., VARELA, E. S.   +3 more
core  

Vigilância e controle da qualidade da água do Córrego Pirapitinga no município de Ituiutaba – MG

Revista Agrogeoambiental, 2014
A água destinada ao consumo humano deve preencher as condições mínimas para que possa ser ingerida, o que se consegue através do seu tratamento. Nesse contexto destaca-se a importância de analisar e verificar a qualidade da água, uma vez que o consumo de água fora dos padrões de potabilidade constitui-se um fator de risco e agravo à saúde humana e dos ...
Sérgio Marcos Sanches, Silvana Gonçalves Hipólito, Eny Maria vieira, Célia Passos   +3 more
openaire   +3 more sources