Results 41 to 50 of about 1,784 (198)

Biliary and hepatic metallothionein, metals and trace elements in environmentally exposed neotropical cichlids Geophagus brasiliensis [PDF]

Journal of Trace Elements in Medicine and Biology, 2018
One of the metal detoxifying mechanisms that occurs in fish is metallothionein (MT) induction and metal binding. Hepatic MT induction has been well described, but biliary MT metal detoxification has only recently been described in fish. In this scenario, metal-metal interactions have been increasingly evaluated to further understand the behavior of ...
Sylvia N. Land, Rafael Christian C. Rocha, Isabella C. Bordon, Tatiana D. Saint’Pierre, Roberta L. Ziolli, Rachel A. Hauser-Davis   +5 more
openaire   +3 more sources

Biological control of Biomphalaria tenagophila (Mollusca, Planorbidae), a schistosomiasis vector, using the fish Geophagus brasiliensis (Pisces, Cichlidae) in the laboratory or in a seminatural environment

Memorias do Instituto Oswaldo Cruz, 1990
In order to investigate a possible method of biological control of schistosomiasis, we used the fish Geophagus brasiliensis (Quoy & Gaimard, 1824) which is widely distributed throughout Brazil, to interrupt the life cycle of the snail Biomphalaria ...
Marcia Weinzettl, Pedro Jurberg
doaj   +1 more source

Eugenol and tricaine methanesulfonate as anhestesics for the pearl cichlid

Acta Scientiarum: Biological Sciences, 2021
Anesthesia reduces the handling process duration and prevent fish injuries. The anesthetic effect and ideal concentrations of eugenol and tricaine methanesulfonate (MS-222) were tested for pearl cichlid (Geophagus brasiliensis) juveniles with an average
Luan Honorato, João Vitor da Silva Batista, Emerson Giuliani Durigon, Giovanni Lemos de Mello, Mateus Vitoria Medeiros   +4 more
doaj   +1 more source

Metals in Fishes from Yongshu Island, Southern South China Sea: Human Health Risk Assessment

Journal of Toxicology, Volume 2017, Issue 1, 2017., 2017
In order to assess the bioaccumulation of metals associated with gender, tissues, and their potential ecological risk, four species of fish were collected from the Yongshu Island in the Southern South China Sea. Metals and stable Pb isotopes in their tissues (muscle, gill, liver, intestine, and ovary) were determined.
Zhai Wu, Ye Xu, Minggang Cai, Sha-Yen Cheng, Huorong Chen, Dongren Huang, Kai Chen, Yan Lin, Tianyao Li, Mengyang Liu, Hengxiang Deng, Minjie Ni, Hongwei Ke, Zongming Ren   +13 more
wiley   +1 more source

Assessment of water quality and genotoxic impact by toxic metals in Geophagus brasiliensis

Chemosphere, 2016
This study used the pearl cichlid Geophagus brasiliensis as a bioindicator to survey the health of the aquatic environment on four sites (P1, P2, P3 and P4) of the Mumbuca stream located at Monte Carmelo/MG, Brazil. The selection of different sites was made with reference to the gradient of urban activity and via physicochemical and biological ...
Cássio Resende Morais, Stephan Malfitano Carvalho, Galber Rodrigues Araujo, Henrique Nazareth Souto, Ana Maria Bonetti, Sandra Morelli, Edimar Olegário Campos Júnior   +6 more
openaire   +2 more sources

CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]

, 2017
In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan, Litz, Thomas O., Mirande, Juan Marcos   +2 more
core  

Illuminating the Dark: Using eDNA Metabarcoding to Study the Unique Ichthyofauna of the Furnas Formation Sinkholes

Environmental DNA, Volume 7, Issue 4, July–August 2025.
Using eDNA metabarcoding, we assessed fish diversity in isolated sinkholes in southern Brazil, uncovering signs of local extinction and species persistence. This approach offers a non‐invasive tool for biodiversity assessment and informs conservation efforts in unique karst environments.
Luz E. De la Ossa‐Guerra, Daniel M. Limeira, Roger H. Dalcin, Heron O. Hilário, Daniel C. Carvalho, Roberto F. Artoni   +5 more
wiley   +1 more source

Novas considerações morfológicas e sistemáticas sobre os Procamallanus brasileiros (Nematoda, Camallanoidea) On Brazilian Procamallanus (Nematoda, Camallanoidea)

Memorias do Instituto Oswaldo Cruz, 1976
Mais uma vez os autores apresentam os resultados obtidos, após examinarem 62 amostras de Procamallanus brasileiros parasitas de peixes dulcícolas. Duas novas espécies são propostas: Procamallanus (Spirocamallanus) pexatus e Procamallanus (Procamallanus ...
R. Magalhães Pinto, Sueli P. de Fábio, Dely Noronha, F. J. Tayt-son Rolas   +3 more
doaj   +1 more source

Organização trófica da assembleia de peixes de uma lagoa costeira subtropical, Santa Catarina, Brasil [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-graduação em Ecologia, Florianópolis, 2013O presente estudo teve como objetivo investigar a organização trófica da assembleia de peixes da ...
Sticca, Sarah Carvalho
core  

Larger Fish Upstream: Testing the Drivers of Fish Longitudinal Size Distribution in a Stream

Freshwater Biology, Volume 70, Issue 7, July 2025.
ABSTRACT The “larger fish upstream pattern” (LFUP), where fish size increases from river mouths toward headwaters, is widely documented, but the drivers remain unclear. Here, we tested whether LFUP is related to species reproductive strategies or environmental factors (differential growth, predation, competition). Using historical data (1994–1998) from
Pedro Wolf, Piatã Marques, Rosana Mazzoni   +2 more
wiley   +1 more source