Results 11 to 20 of about 247 (152)

Caracterização seminal de carás (Geophagus brasiliensis - Cichlidae) induzidos artificialmente

Pesquisa Agropecuária Gaúcha, 2019
Um estudo foi realizado com o objetivo de avaliar as características seminais do cará Geophagus brasiliensis mantido em cativeiro com e sem indução hormonal.
Andréa Ferretto Rocha, Abdel Correia Handem, Mario Luiz Biazzetti Filho, Marcia Regina Stech, Mario Roberto Chim Figueiredo   +4 more
doaj   +4 more sources

Metazoan parasites of Geophagus brasiliensis (Perciformes: Cichlidae) in Patos lagoon, extreme south of Brazil [PDF]

Brazilian Journal of Veterinary Parasitology, 2015
Abstract This study has evaluated the parasitic fauna of 79 pearl cichlids (Geophagus brasiliensis) from the estuary of Patos Lagoon (31° 57' S and 52° 06' W), Rio Grande do Sul, Brazil, during the months of May and June in 2011 and 2012. All the hosts analyzed were infected with at least one species of parasite.
Joaber Pereira Junior
exaly   +6 more sources

Environmental enrichment reduces aggression of pearl cichlid, Geophagus brasiliensis, during resident-intruder interactions [PDF]

Neotropical Ichthyology, 2010
Among fishes, when residents and intruders fight, residents usually win, most likely because they value the residence more than intruders. We hypothesized that enriched environments increase the value of an area in dispute, causing a resident to more ...
Vivian Oliveira Kadry, Rodrigo Egydio Barreto   +1 more
doaj   +5 more sources

GROWTH OF Geophagus brasiliensis REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES

Boletim do Instituto de Pesca, 2021
The aim of this study was to evaluate the growth performance of Geophagus brasiliensis rearedb under distinct temperatures (24.3 ± 0.9, 28.1 ± 1.0, and 31.7 ± 0.8°C) and feeding regimes (apparent satiety and a supply of 4% of the total biomass ...
Leone de Souza MEDINA, Maurício Gustavo Coelho EMERENCIANO, Fábio BITTENCOURT, Giovanni Lemos de MELLO   +3 more
doaj   +2 more sources

Active eDNA Is More Cost‐Effective Than Fyke Nets or Passive eDNA Collection When Monitoring the Invasion of an Alien Freshwater Fish

Environmental DNA
Monitoring alien species is critical to their management. However, early detection of invading alien freshwater fish can be challenging due to the difficulty of observing fish in low abundance.
Lenore Morris, Leah S. Beesley, Emma R. Stevens, Daniel C. Gwinn, Josephine Hyde, Suzanne Thompson, Deirdre B. Gleeson, Michael M. Douglas   +7 more
doaj   +2 more sources

O papel de Ancyrocephalinae (Monogenea: Dactylogyridae), parasito de Geophagus brasiliensis (Pisces: Cichlidae), como indicador ambiental The role of Ancyrocephalinae (Monogenea: Dactylogyridae), parasite of Geophagus brasiliensis (Pisces: Cichlidae), as an environmental indicator

Revista Brasileira de Parasitologia Veterinária, 2009
As variações nas populações de parasitos em peixes podem ser indicadoras de alguma alteração ambiental. Tendo por objetivo o estudo da variação do parasitismo por Ancyrocephalinae em Geophagus brasiliensis, foram comparados dois reservatórios de ...
Rubens Riscala Madi, Marlene Tiduko Ueta
doaj   +2 more sources

Water level influences on body condition of Geophagus brasiliensis (Perciformes: Cichlidae) in a Brazilian oligotrophic reservoir [PDF]

Neotropical Ichthyology, 2004
Effects of water level fluctuations on body condition of Geophagus brasiliensis were studied in a 30 km² Brazilian oligotrophic reservoir. Physiological condition (K) and gonadosomatic index (GSI) were compared according to water level (low and high).
Alejandra Filippo Gonzalez Neves Dos Santos, Luciano Neves Dos Santos, FRANCISCO Gerson Araujo   +2 more
exaly   +6 more sources

Toxicity of naphthalene in the Neotropical Fish Astyanax Lacustris (Characiformes: Characidae) and Geophagus Brasiliensis (Perciformes: Cichlidae) [PDF]

Evidência, 2017
Polycyclic aromatic hydrocarbons are one of the most important organic pollutants in environmental studies. The aim of this study was to assess the naphthalene acute toxicity in two fish species, Astyanax lacustris (LLcust, 1875) and Geophagus ...
Geonildo Rodrigo Disner, Sabrina Louise Moraes Calado, Helena Cristina Silva Assis, Marta Margarete Cestari   +3 more
doaj   +3 more sources

Utilização de eugenol como anestésico em juvenis de Geophagus brasiliensis

Boletim do Instituto de Pesca, 2018
O eugenol, substí­¢ncia ativa do óleo de cravo, tem demonstrado ser eficiente e seguro como anestésico para peixes. Neste estudo foram avaliados os efeitos de diferentes concentrações de eugenol na anestesia, tempo de recuperação, glicemia e percentual ...
Andréa Ferretto da ROCHA, Marcia Regina STECH, Marcus Frederico Martins PINHEIRO, Danielle Machado PAGANI, Camila Fiaux SUKEKAVA   +4 more
doaj   +1 more source

Geophagus brasiliensis

, 2023
Geophagus brasiliensis (Quoy & Gaimard) Distribution. Shing Mun Reservoir (GBIF.org, 2021). Native range. Central and South America.
Chan, Jeffery C. F., Tsang, Alphonse H. F., Yau, Sze-man, Hui, Tommy C. H., Lau, Anthony, Tan, Heok Hui, Low, Bi Wei, Dudgeon, David, Liew, Jia Huan   +8 more
openaire   +3 more sources