SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

CARVALHO,Thaís Billalba; SOUZA,Ellen Cristina Monteiro de; PINHEIRO-DA-SILVA,Jaquelinne; VILLACORTA-CORREA,Marle Angélica.

ABSTRACT Brycon amazonicus is a native Amazonian fish that is important for aquaculture in South America. Larval mortality is high in this species in intensive breeding systems due to aggressiveness among larvae. The present study investigated experimentally the effects of body size heterogeneity on the aggressive behavior and survival of B. amazonicus during the early stages of larval development. Two treatments (larvae groups with homogeneous and heterogeneous body size) were evaluated throughout early larval stages tested at six time points: 12, 24, 36, 48, 60 and 72 hours after hatching (HAH). Two experiments quantified, respectively, aggressive interactions and mortality rates among larvae at each time point. The frequency of aggressive interactions...

Cooking process evaluation on mercury content in fish

Palavras-chave: Aggressiveness; Fish; Larviculture; Mortality.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000400304

Farias,Luciana Aparecida; Fávaro,Déborah Inês; Santos,José Osman; Vasconsellos,Marina Beatriz; Pessôa,Artemiza; Aguiar,Jaime Paiva Lopes; Yuyama,Lucia.

This study evaluated different cooking processes (roasted, cooked and fried) on total mercury (Hg) content in fish species most consumed by Manaus residents and surrounding communities, Amazon region. The results obtained for total Hg in natura and after the three types of preparation (roasted, cooked and fried) for 12 fish species showed a significant Hg concentration variation. In the present study the cooked and frying processes resulted in higher Hg losses for Pacu, Pescada, Jaraqui, Curimatã, Surubin and Aruanã fish species, most of them presenting detritivorous and carnivorous feeding habits. The higher Hg losses in the roasting process occurred for Sardinha, Aracu, Tucunaré, Pirapitinga, Branquinha and Tambaqui fish species, most of them being...

Seeds of sacha inchi (Plukenetia volubilis, Euphorbiaceae) as a feed ingredient for juvenile tambaqui, Colossoma macropomum, and matrinxã, Brycon amazonicus (Characidae)

Palavras-chave: Mercury; Cooking processes; Fish; Nutrition; Micronutrients.

Ano: 2010

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672010000400015

ARAÚJO-DAIRIKI,Thyssia Bomfim; CHAVES,Francisco Célio Maia; DAIRIKI,Jony Koji.

ABSTRACT Sacha inchi (Plukenetia volubilis) is a plant native to the Peruvian Amazon with seeds that contain 24 to 29% protein, and levels of vitamin A and E and omega 3 polyunsaturated fatty acids that are suitable for fish nutrition. Thus, this study aimed to evaluate the use of sacha inchi seeds as an ingredient in the diets of tambaqui (Colossoma macropomum) and matrinxã (Brycon amazonicus). The acceptance and effect of three levels of sacha inchi seed meal (0, 15 and 30%) in fish feed was evaluated in a randomized experiment, testing groups of 12 juvenile tambaquis (29.8 ± 1.0 g, 11.0 ± 1.4 cm) and groups of eight juvenile matrinxãs (34.8 ± 1.3 g, 13.7 ± 1.0 cm). Growth performance and body composition of the fish were determined at the end of the...

Ichthyometry and electrical bioimpedance analysis to estimate the body composition of tambatinga

Palavras-chave: Alternative diet; Growth performance; Nutrition; Fish.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000100032

Andrade,Francisco Teixeira; Abreu,Márvio Lobão Teixeira de; Lopes,João Batista; Figueiredo,Agustinho Valente de; Araripe,Maria de Nazaré Bona Alencar; Ferreira,Antônio Hosmylton Carvalho.

Body composition analysis is relevant to characterize the nutritional requirements and finishing phase of fish. The aim of this study was to investigate the relationship between ichthyometric (weight, total and standard length, density and yields), bromatological (fat, protein, ash and water content) and bioelectrical-impedance-analysis (BIA) (resistance, reactance, phase angle and composition indexes) variables in the hybrid tambatinga (Colossoma macropomum × Piaractus brachypomus). In a non-fertilized vivarium, 520 juveniles were housed and fed commercial rations. Then, 136 days after hatching (DAH), 15 fish with an average weight of 37.69 g and average total length of 12.96 cm were randomly chosen, anesthetized (eugenol) and subjected to the first of...

Length-weight relationship in ten fish species from the Nhamundá River, the Amazon Basin, Brazil

Palavras-chave: Bromatology; Fish; Non-lethal assessment; Reactance; Resistance.

Ano: 2014

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000200014

FREITAS¹*,Tiago Magalhães da Silva; SOUZA¹,Joao Batista de Souza e; PRUDENTE²,Bruno da Silveira; MONTAG²,Luciano Fogaça de Assis.

ABSTRACT Studies on the length-weight relationship (LWR) of fishes are an important tool to describe several biological aspects of the species. Consequently, these studies are relevant due the necessity of comprehension about fish life cycle. Thus, this study aimed to establish the length-weight relationship of the ten most common fish in the Lower Nhamundá River, left tributary of the Amazon River. The capture of fish was conducted in January 2008 using gill nets. A total of 807 individuals, ten species and three Orders (Characiformes, Siluriformes and Clupeiformes) were analyzed. The parameter b varied from 2.680 to 3.698. The LWR were shown for the first time for two species: Anostomoides laticeps and Ageneiosus polystictus. Finally, this research...

Tipo: Info:eu-repo/semantics/report

Palavras-chave: Growth pattern; Alometry; Fish; Amazonia.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000100075

The seasonal diet of Aequidens tetramerus (Cichlidae) in a small forest stream in the Machado River basin, Rondônia, Brazil

COSTA,Igor David da; SOARES,Maiza Oliveira.

Trophic relationships in fish communities are affected by the availability of resources, which in turn is affected by spatial and temporal variations throughout the year. The aims of this study were to characterize the diet of A. tetramerus in a streamlet in the north of Brazil and compare its composition in different hydrological seasons (wet and dry seasons). Collections were performed every two months from October 2011 to September 2012 with the aid of seine nets, hand net and fishing traps in the streamlet located in the Machado River drainage basin in the Rondônia state. Most of the specimens collected were quite small (< 40 mm) and had empty stomachs. Our results showed that A. tetramerus feeds on a wide variety of items of plant origin, such as...

Rapid assessment of the ichthyofauna of the southern Guiana Shield tributaries of the Amazonas River in Pará, Brazil

Palavras-chave: Fish; Perciformes; Amazon; Feeding habits; Ornamental fish.

Ano: 2015

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672015000400365

DUTRA,Guilherme M.; FREITAS,Tiago M. S.; PRUDENTE,Bruno S.; SALVADOR,Gilberto N.; LEÃO,Manuela D. V.; PEIXOTO,Luiz A. W.; MENDONÇA,Marina B.; NETTO-FERREIRA,André L.; SILVA,Fabio R.; MONTAG,Luciano F. A.; WOSIACKI,Wolmar B..

ABSTRACT The Northern Pará Drainage System encompasses the left-bank tributaries of the Amazonas River in the southern Guiana Shield region of Pará state, Brazil. Five of the region’s state protected areas are considered strategic for the conservation of its biodiversity. In the present study, we assessed the ichthyofauna of the five state protected areas of the Northern Pará Drainage System. Seven expeditions were conducted between January 2008 and January 2009, which surveyed stretches of the Cuminá, Cuminapanema, Curuá, Jari, Mapuera, Nhamundá, and Paru rivers. These surveys yielded 286 species belonging to 38 families and eight orders, including seven new records of fish species for Brazil, six of which are also new records for the Amazon basin. Our...

A description of mercury in fishes from the Madeira River Basin, Amazon, Brazil

Palavras-chave: Northern Pará Drainage System; Protected areas; Amazon; Inventory; Fish.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100024

Bastos,Wanderley Rodrigues; Rebelo,Mauro de Freitas; Fonseca,Márlon de Freitas; Almeida,Ronaldo de; Malm,Olaf.

Over the last 20 years several projects carried on the Madeira River basin in the Amazon produced a great amount data on total Hg concentration in different fish species. In this paper we discuss temporal trends in Hg contamination and its relation to body weight in some of those fishes, showing that even within similar groups, such as carnivorous and non-migratory fish, the interspecies variability in Hg accumulation is considerable.

Characterization of the commercial fish production landed at Manaus, Amazonas State, Brazil

Palavras-chave: Fish; Mercury; Biomagnification; Madeira River; Amazon.

Ano: 2008

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000300006

BATISTA,Vandick da Silva; PETRERE JÚNIOR,Miguel.

The present work aims to update a series of information about the regional fishing production, by presenting and characterizing the contribution of the different sub-systems of the Amazon basin to the catch landed at the main fishing market of Manaus, Brazil, from 1994 to 1996. Collectors specifically hired for this function registered key information on the fisheries. Thirty nine types or groups of fish were found in the fishing production landed. Jaraqui (Semaprochilodus spp.), curimatã (Prochilodus nigricans), pacu (Myleinae), matrinchã (Brycon cephalus), sardine (Triportheus spp.), aracu (Anostomidae) and tambaqui (Colossoma macropomum) were the most important items during three consecutive years. In 1994 these items summed up 91.6% of the total...

FEEDING HABITS OF Paralonchurus brasiliensis (PERCIFORMES: SCIAENIDAE) FROM SOUTH OF BRAZIL

Palavras-chave: Fish; Fisheries; Amazon; Production.

Ano: 2003

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672003000100053

Acta biol.Colomb.

SEDREZ,Mário Cesar; BARRILLI,Germano Henrique Costa; FRAGOSO-MOURA,Evelise Nunes; BARREIROS,João Pedro; BRANCO,Joaquim Olinto; VERANI,José Roberto.

ABSTRACT Shrimp trawling directly impacts target species and non-target species, altering micro-habitats and marine trophic webs. Thus, the objective of the present research was to analyze the feeding habits of Paralonchurus brasiliensis as a tool to evaluate the impact of trawling on the food chains in marine environments, in the South Atlantic of Brazil. One thousand and nineteen stomachs of P. brasiliensis were dissected after being captured as bycatch of shrimp Xiphopenaeus kroyeri, in Penha, on the north central coast of Santa Catarina, Brazil. The number of stomachs was enough to describe the feeding habits of P. brasiliensis, characterizing it as a carnivorous species and predominantly invertivorous. They also revealed that this species has a...

URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2021000300335

Palavras-chave: Accompanying fauna; Bottom trawling; Conservation; Fish; Fisheries.

Ano: 2021

Valor nutricional do farelo de algodão para a tilápia do nilo (Oreochromis niloticus) - DOI: 10.4025/actascianimsci.v31i1.505

Animal Sciences

Kleemann, Geisa Karine; UNESP; Barros, Margarida Maria; UNESP; Pezzato, Luiz Edivaldo; UNESP.

Determinou-se a composição química dos farelos de algodão 28,0; 38,0 e 46,0% de proteína bruta e os coeficientes de digestibilidade aparente (CDA) pela tilápia do Nilo da matéria seca, proteína, aminoácidos, energia, lipídeo e minerais. Os CDA foram determinados, usando-se dieta-referência purificada, contendo 0,1% do indicador óxido de crômio-III. As rações-teste continham 60,0% da dieta-referência e 40,0% dos alimentos em estudo. Os resultados mostraram diferença (p < 0,05) entre os CDA dos nutrientes dos farelos de algodão. Os CDA dos três farelos de algodão foram: matéria seca = 53,45 a 54,32%; proteína = 71,56 a 74,81%; energia = 53,80 a 58,60%; lipídeo = 85,37 a 89,11%; fósforo = 33,75 a 34,50%; cálcio = 41,21 a 43,75%; ferro = 62,02 a 79,85%;...

Palavras-chave: 5 5.04.00.00-2 Zootecnia aminoácidos; Digestibilidade; Energia; Peixe; Minerais; Proteína digestível 5 5.04.00.00-2 Zootecnia amino acids; Digestibility; Energy; Fish; Minerals; Protein availability.

Ano: 2009

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/505

Mananoligossacarídeo em dietas para juvenis de tilápias do Nilo - doi: 10.4025/actascianimsci.v32i2.7724

Animal Sciences

Schwarz, Kátia Kalko; FAFIPAR/UEM; Furuya, Wilson Massamitu; Universidade Estadual de Maringá; Natali, Maria Raquel Marçal; Universidade Estadual de Maringá; Michelato, Mariana; Programa de Pós Graduação em Zootecnia/UEM; Gualdezi, Mirian Cristina; Faculdade Estadual de Filosofia Ciências e Letras de Paranaguá.

O presente estudo foi realizado com o objetivo de avaliar a inclusão de mananoligossacarídeo (MOS) em dietas para juvenis de tilápias do Nilo. Foram utilizados 224 peixes (25 g ±1,0 g), em um período de 53 dias e os peixes foram distribuídos em um delineamento em blocos ao acaso, sendo considerado como bloco cada tanque de 1.000 L com 16 gaiolas de 0,12 m3 cada. Foi utilizada dieta-controle com 28,5% de proteína bruta e 2.855 kcal de energia digestível kg-1 e adicionado MOS nas proporções de 0, 1, 2 e 3%. Não foi observado efeito (p > 0,05) dos níveis de inclusão de MOS sobre o consumo, índice hepatossomático, sobrevivência, umidade, cinzas corporal, coeficiente de digestibilidade aparente da máteria seca, energia bruta, proteína bruta,...

Tipo: Experimento científico, pesquisa de campo; análise laboratorial

Palavras-chave: Ciências Agrárias Desempenho; Mucosa intestinal; Peixe; Prebiótico 5.06.03.00-0 Aquicultura Performance; Intestinal morphology; Fish; Prebiotic.

Ano: 2010

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7724

Diversidade genética de três estoques de piapara (Leporinus elongatus), utilizando RAPD - DOI: 10.4025/actascianimsci.v30i2.4710

Animal Sciences

Gomes, Patricia Cristina; UEM; Ribeiro, Ricardo Pereira; UEM; Barrero, Nelson Lopera; UEM; Povh, Jayme Aparecido; UEM; Vargas, Lauro; UEM; Sirol, Rodolfo Nardez; Duke Energy International Geração Paranapanema.

Recentemente a produção aquícola brasileira tem apresentado grande progresso. Dentre as espécies nativas cultivadas no Brasil, a piapara (Leporinus elongatus) tem sido amplamente preconizada. Com objetivo de avaliar os programas de repovoamento, foram analisadas a variabilidade e a divergência genética de três estoques de piapara com a técnica de RAPD (Random Amplified Polymorphic). O primeiro estoque pertence à Estação de Aquicultura e Hidrologia da Duke Energy International (A); o segundo, à piscicultura de Rolândia (B) e o terceiro, ao Programa de Repovoamento dos Rios do Paraná (C). Os dez primers para RAPD utilizados produziram 105 fragmentos polimórficos, conferindo um polimorfismo de 98,1% para os três estoques avaliados. A porcentagem de locos...

Palavras-chave: 5.05.04.00-2 Reprodução Animal divergência genética; Locos polimórficos; Peixe; RAPD; Reprodutores; Variabilidade genética. genetic divergence; Polymorphic loci; Fish; RAPD; Reproducers; Genetic variability.

Ano: 2008

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4710

Efeitos tóxicos de surfactantes fitossanitários para o peixe mato grosso (Hyphessobrycon eques) - doi: 10.4025/actascibiolsci.v33i2.6252

Carraschi, Silvia Patrícia; Faculdade de Ciências Agrárias e Veterinárias da UNESp de Jaboticabal; Cubo, Patrícia; Faculdade de Ciências Agrárias e Veterinárias da UNESP - Jaboticabal; Schiavetti, Bárbara Lopes; Faculdade de Ciências Agrárias e Veterinárias da UNESP - Jaboticabal; Shiogiri, Natália Sayuri; Faculdade de Ciências Agrárias e Veterinárias da UNESP - Jaboticabal; Cruz, Claudinei da; Faculdade de Ciências Agrárias e Veterinárias da UNESP - Jaboticabal; Pitelli, Robinson Antonio; Faculdade de Ciências Agrárias e Veterinárias da UNESP - Jaboticabal.

Os surfactantes são moléculas anfipáticas que reduzem a tensão superficial da água e fazem parte dos componentes inertes das formulações de produtos fitossanitários. Assim, os objetivos deste trabalho foram: estimar a concentração letal (CL(I)(50;96h)); classificar e avaliar a qualidade da água durante os testes de toxicidade aguda dos surfactantes: Agral®, Aterbane® BR, Ag-Bem®, Energic®, Fixade® e Gotafix® para o peixe mato grosso (Hyphessobrycon eques); e os sinais de intoxicação nos animais. Para tanto, os peixes foram aclimatados por dez dias em sala de bioensaio. Os animais foram expostos aos surfactantes em DIC com três repetições. A CL(I)(50;96h) do surfactante Agral® foi 3,29 mg L-1; do...

Palavras-chave: 2.05.03.00-8 Ecotoxicologia; Peixe; Qualidade de água; Comportamento Ecologia Aplicada Ecotoxicology; Fish; Water quality; Behavior.

Ano: 2011

URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6252

Ictiofauna do ribeirão Diamante, Estação Ecológica do Caiuá (Diamante do Norte, Estado do Paraná): monitoramento de sua composição e estrutura - DOI: 10.4025/actascibiolsci.v31i2.3907

Morales, Bruno Ferezim; UEM; Cionek, Vivian de Mello; UEM; Benedito, Evanilde; UEM.

O objetivo do presente trabalho foi investigar as assembleias de peixes do ribeirão Diamante (Estação Ecológica do Caiuá), visando avaliar sua composição e estrutura, ao longo de dois períodos distintos: três e 11 anos após sua criação. Para tanto, foram comparados os resultados obtidos nas amostragens realizadas trimestralmente no presente estudo, entre novembro de 2005 e agosto de 2006, com os resultados apresentados por Abilhoa e Bastos (2005) para o período de agosto de 1997 a dezembro de 1998. Neste estudo, os aparelhos de pesca foram constituídos de redes de espera simples com malhas de 2,4 a 16 cm (entre nós opostos), expostas por 24h, com revistas a cada 8h. Para a caracterização da ictiofauna, foram analisados padrões de riqueza específica,...

Tipo: Diversidade

Palavras-chave: 2.00.00.00-6 Ciências Biológicas conservação; Peixes; Introdução de espécies; Impactos ambientais Ciências Biológicas conservation; Fish; Species introduction; Environmental damage.

Ano: 2009

URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3907

Condição reprodutiva da betara preta, Menticirrhus americanus (Teleostei, Sciaenidae), na pesca realizada no litoral norte de Santa Catarina, Brasil - DOI: 10.4025/actascibiolsci.v30i4.1230

Muniz, Elneison da Rosa; UFPR; Chaves, Paulo de Tarso; UFPR.

No litoral brasileiro, a legislação costuma regular as práticas pesqueiras segundo o ciclo de vida das espécies-alvo, mas o fato deste não ser coincidente entre as espécies dominantes nas capturas dificulta o manejo em pescarias multiespecíficas. No litoral de Santa Catarina, o defeso aplica-se apenas à pesca de arrasto, e para tal considera o período reprodutivo do camarão sete-barbas, Xyphopenaeus kroyeri. O presente trabalho investiga a incidência da atividade pesqueira sobre indivíduos em reprodução da betara preta, Menticirrhus americanus, espécie comercialmente apreciada e frequente nas pescarias. As amostragens ocorreram em 2006 e 2007, em desembarques do município de Itapoá, norte do Estado (26°00’S; 48°36’W). Calcularam-se os valores de proporção...

Tipo: Atividade reprodutiva

Palavras-chave: 5.06.01.00-8 Recursos Pesqueiros Marinhos. Reprodução; Peixes; Defeso; Pesca Zoologia breeding; Fish; Management; Fishing.

Ano: 2008

URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1230

A new species of Jainus (Monogenea), gill parasite of Schizodon borellii (Characiformes, Anostomidae) from the upper Paraná river floodplain, Brazil - doi: 10.4025/actascibiolsci.v33i2.6168

Karling, Letícia Cucolo; Universidade Estadual de Maringá; Bellay, Sybelle; Universidade Estadual de Maringá; Takemoto, Ricardo Massato; Universidade Estadual de Maringá; Pavanelli, Gilberto Cezar; Universidade Estadual de Maringá.

Jainus piava n. sp. is described from the gills of Schizodon borellii (Boulenger, 1900) (Characiform), commonly named as piava from the upper Paraná River floodplain, Brazil. The new species differs from the other members of Jainus in the following features: ventral bar thin broadly V-shaped and male copulatory organ (MCO) a coil of about 1.5 rings. Jainus piava n. sp. is similar to species of Jainus by having a ventral anchor base with flattened superficial root and elongate rodlike deep root.

Tipo: Descrição de espécie

Palavras-chave: Parasitologia; Monogenea; Taxonomia Dactylogyridae; Ectoparasite; Fish; Piava parasitologia Dactylogyridae; Ectoparasite; Fish; Piava.

Ano: 2011

URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6168

New species of Tereancistrum (Dactylogyridae) monogenean parasites of Schizodon borellii (Characiformes, Anostomidae) from Brazil, and emended diagnosis for T. parvus

Karling, Letícia Cucolo; Universidade Estadual de Maringá; Lopes, Luiza Paula Conceição; Universidade Estadual de Maringá; Takemoto, Ricardo Massato; Universidade Estadual de Maringá; Pavanelli, Gilberto Cezar; Universidade Estadual de Maringá / Universidade Federal do Paraná.

Tereancistrum paranaensis sp. n. is described from the gills of Schizodon borellii (Boulenger 1900) (Characiformes) from the upper Paraná river floodplain, Brazil. The new species is mainly characterized by morphology of copulatory complex, dorsal anchor with shaft recurved and pointed and arc-shaped dorsal bar. Tereancistrum parvus was described based on only one specimen and some characteristics were not observed. Now we provide an emendation to the diagnosis of this species.

Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens

Palavras-chave: Dactylogyridae; Ectoparasite; Fish; Piava; Floodplain; Brazil.

Ano: 2014

URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/20216

Felizardo, Viviane de Oliveira; Andrade, Eliane Aparecida de; Melo, Carlos Cicinato Vieira; Murgas, Luis David Solis; Freitas, Rilke Tadeu Fonseca de; Andrade, Estefânia de Souza.

This study determined the age and its correlation with biometric variables and reproductive indices of piapara Leporinus obtusidens caught at the Funil Reservoir. We caught 133 specimens between September 2006 and August 2007. Weight, total length, standard length, depth, height, head length and radius of the scales were measured. The sex was determined by macroscopic examination of gonads. The age of each fish was determined by analyzing the growth rings on the scales. Seasonal differences in biometric variables were tested using the NK test at 5%. The correlation of age and radius of the scales with the biometric variables and reproductive indices were analyzed using the SAEG software. Fish individuals ranging from 3 to 14 years of age were caught. In...

Histopathological evaluation of seven Amazon species of freshwater ornamental armored catfish

Palavras-chave: 2.00.00.00-6 biometrics; Fish; Growth; Piapara; Reproduction Ecologia.

Ano: 2015

URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/28003

Fujimoto, Rodrigo Yudi; Embrapa Tabuleiros Costeiros; Neves, Mikaelle de Souza; Universidade Federal do Pará; Santos, Rudã Fernandes Brandão; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Cruz, Claudinei da; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Diniz, Daniel Guerreiro; Universidade Federal do Pará; Eiras, Jorge Costa; Universidade do Porto.

Fish commonly known as acaris or plecos are freshwater armored catfish economically important as a food resource and as ornamental fish. Most of these species are captured in the Amazon region. However, despite its economic importance, there is a lack of knowledge about their biological aspects. Thus, this study aimed to characterize and evaluate the histopathological aspects of important organs as gills, liver, integument and kidney of seven species of armored freshwater ornamental catfish fromGuamáRiver,Pará State,Brazil. All organs showed typical characteristics of organs of other teleosts. In some species, gills and liver showed slight histopathological changes: telangiectasis, edema and morphological changes related to the presence of parasites...