Composição corporal e alimentar do Matrinxã, Brycon cephalus (Günther, 1869), na Amazônia central

Pizango-Paima, Emer Gloria; Pereira-Filho, Manoel; Oliveira-Pereira, Maria Inêz de

doi:10.1590/1809-43922001313520

Cited by 17 publications

(6 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The species can reach 80 cm in length and weigh up to 5 kg [ 4 ]. The matrinxã is omnivorous, feeding on seeds, fruits, flowers, plant remains, herbaceous plants, fish remains, arachnids, annelids and insects [ 5 ]. According to Gadelha and Araújo [ 3 ], the species is very promising for fish farming because it has good feed conversion, easy adaptation to feed, high fecundity and rapid growth.…”

Section: Introductionmentioning

confidence: 99%

Effects of dietary aflatoxin B1 on accumulation and performance in matrinxã fish (Brycon cephalus)

et al. 2018

View full text Add to dashboard Cite

Aflatoxins (AF) can be cumulative in fish tissues and can influence weight, length, feed intake and survival depending on the species. The aim of this work is to measure performance and aflatoxin levels in tissues of matrinxã (Brycon cephalus) fish chronically exposed to aflatoxin. Aflatoxin was incorporated into fish diets at the following levels: Control Feed + 0 μg AFB1 kg-1; A. Feed + 10 μg AFB1 kg-1; B. Feed + 20 μg AFB1 kg-1; C. Feed + 50 μg AFB1 kg-1. It was used one tank per treatment, each one with 150 juvenile fish, and three replicates within each tank were used for sampling, that was carried out monthly over a period of six months. Aflatoxin was quantified by HPLC in fish liver and muscle after clean up using immunoaffinity columns. Performance was evaluated by using weight, length, consumption and survival rate. Muscle and liver aflatoxin levels were below the limit of detection in all control samples. Aflatoxins B2, G1 and G2 were not detected in any tissues. Traces (values between limits of detection and quantification) of AFB1 were observed in liver tissue in treatment A from day 30 through 90, reaching 0.32 μg AFB1 kg-1 at 150 days of exposure. Treatment B presented traces up to day 60 and had, with a maximum level of 0.39 μg AFB1 kg-1 at 150 days of exposure. Treatment C had aflatoxin residues after day 30, with values ranging from 0.17 to 0.61 μg AFB1 kg-1 during exposure. Muscle samples only had traces of AFB1 in all treatments. Fish was affected by exposure to AFB1 with higher values (P<0.05) for weight and length in treatments A, B and C relative to controls. Therefore, results indicate that matrinxã do not accumulate AFB1 residues in edible tissues, but chronic exposure affects the species.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of dietary aflatoxin B1 on accumulation and performance in matrinxã fish (Brycon cephalus)

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Other Brycon, such as Brycon melanopterus (Reimer, 1982), Brycon cephalus (Pizango-Paima et al, 2001;Figueiredo-Garutti et al, 2002), Brycon vermelha Lima and Castro, 2000and Brycon ferox Steindachner, 1877(Lima and Castro, 2000, Brycon orbignyanus (García-Carreño et al, 2002;Sá and Fracalossi, 2002), Brycon microlepis Perugia, 1897 (Sabino and Sazima, 1999), Brycon falcatus Müller and Troschel, 1844 (Melo et al, 2004), Brycon lundii (Alvim and Peret, 2004) and Brycon sp. (Jatuarana) (Goulding, 1980), have been characterized as feeding on an omnivorous diet in the most diverse environments.…”

Section: Discussionmentioning

confidence: 99%

The role of riverine forests for food supply for the omnivorous fish Brycon opalinus Cuvier, 1819 (Characidae) in the Serra do Mar, Southeast Brazil

2008

View full text Add to dashboard Cite

The purpose of this study was to characterize the diet of the fish Brycon opalinus (Characidae) seasonally and locally, allowing for the determination of its food items and trophic relations with the aquatic and terrestrial environments. The study area encompasses three rivers (Paraibuna, Ipiranga and Grande) in the basin of the Paraibuna, southeast Brazil. Twelve monthly collections were made from January to December 2004. The degree of stomachic repletion and of accumulated visceral fat was analyzed, as was the intestinal length in each class of total length. The frequency of occurrence and the degree of food preference (DFP) of the food items of Brycon opalinus were determined by separating the vegetal and animal items, autochthonous and allochthonous, by insect order and vegetal family consumed. The frequency of occurrence of items of animal origin was found to be equivalent to that of vegetal origin, thus characterizing the omnivorism of Brycon opalinus feeding.Keywords: Atlantic rainforest, Brycon opalinus, frugivores, omnivorism, seed dispersal. O papel das florestas ribeirinhas na alimentação do peixe onívoro Brycon opalinus (Characidae) na Serra do Mar, sudeste do Brasil ResumoO objetivo foi caracterizar a dieta do peixe Brycon opalinus (Characidae) sazonalmente e localmente, sendo possível determinar os itens alimentares e as relações tróficas com os ambientes aquáticos e terrestres. A área de estudo abrange três rios (Paraibuna, Ipiranga e Grande) da bacia do Paraibuna, Sudeste do Brasil. Foram realizadas doze coletas mensais de janeiro a dezembro de 2004. O grau de repleção estomacal e o grau de acúmulo de gordura visceral foram analisados, assim como o comprimento intestinal em cada classe de comprimento total. A freqüência de ocorrência e o grau de preferência alimentar (GPA) dos itens alimentares de Brycon opalinus foram obtidos separando-se os itens vegetais e animais, autóctones e alóctones, por ordem de insetos e por família de vegetais consumidos. A freqüência de ocorrência dos itens de origem animal equivale à dos de origem vegetal, caracterizando assim a onivoria na alimentação de Brycon opalinus.Palavras-chave: Mata Atlântica, Brycon opalinus, frugívoros, onivoria, dispersão de sementes.

show abstract

“…A atividade pesqueira na região amazônica destaca-se em relação às demais regiões brasileiras, pela riqueza de espécies exploradas, pela quantidade de pescado capturado e pela dependência da população tradicional a esta atividade. Dentre as espécies capturadas na região, o matrinxã Brycon amazonicus (Spix & Agassiz, 1829), vem despertando o interesse dos pesquisadores, piscicultores e das indústrias de pescado de todo o Brasil, por ser uma espécie com potencial para exploração comercial, podendo ser criada em ambientes controlados e por apresentar fácil adaptação ao cativeiro (PIZANGO-PAIMA, 2001).…”

Section: Introductionunclassified

Microscopia Eletrônica de Varredura do Couro de Matrinxã Curtido ao Mineral

Melo

Rocha

Jesus

et al. 2009

btcc

View full text Add to dashboard Cite

O matrinxã (Brycon amazonicus) vem despertando o interesse dos pesquisadores, piscicultores e das indústrias de pescado de todo o Brasil, por ser uma espécie com potencial para exploração comercial. O aproveitamento da pele de peixe através da técnica de curtimento é uma alternativa para agregar valor ao produto, podendo ser utilizado como matéria-prima na indústria de artefatos de couro. O presente trabalho teve por objetivo o aproveitamento das peles de matrinxã para a transformação em couro, utilizando o curtente mineral e por meio da microscópia eletrônica de varredura analisar o comportamento das bras colágenas do couro. As peles constituíram-se de resíduo, com tamanho médio de 25 cm. Na análise de microscopia eletrônica de varredura, retirou-se pedaços de couro, um total de 6 amostras, e estes foram analisados sem tratamento, sendo apenas realizada a secagem em estufa a 60 °C. Os tratamentos preliminares de curtimento in uenciaram na penetração dos produtos químicos, a utilização do cromossal B proporcionou a estabilidade de todo o sistema colágeno, transformando a pele em couro exível e com elasticidade. Na microscopia do couro, as camadas sobrepostas são formadas de feixes de bras colágenas delgadas espessas e sobrepostas entre si e a espessura das camadas aumentou à medida que se aproximou da hipoderme. Ao nal do processo foi veri cado que o desenho natural da lamélula foi mantido e que o couro apresentava boa qualidade após o curtimento.Palavras-chave: Couro de matrinxã, curtente mineral, pele de peixe.

show abstract

Composição corporal e alimentar do Matrinxã, Brycon cephalus (Günther, 1869), na Amazônia central

Cited by 17 publications

References 2 publications

Effects of dietary aflatoxin B1 on accumulation and performance in matrinxã fish (Brycon cephalus)

Effects of dietary aflatoxin B1 on accumulation and performance in matrinxã fish (Brycon cephalus)

The role of riverine forests for food supply for the omnivorous fish Brycon opalinus Cuvier, 1819 (Characidae) in the Serra do Mar, Southeast Brazil

Microscopia Eletrônica de Varredura do Couro de Matrinxã Curtido ao Mineral

Contact Info

Product

Resources

About