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A comparative cytogenetic analysis between the grasshopper species Chromacris nuptialis and C. speciosa (Romaleidae): constitutive heterochromatin variability and rDNA sites. Repositório Alice
LORETO, V.; STADTLER, E.; MELO, N. F. de; SOUZA, M. J..
The chromosomes of Chromacris nuptialis and C. speciosa were comparatively analyzed using different cytogenetic techniques, in order to determine the level of karyotypic similarities and differences between the species.
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Heterocromatografia; NOR; Chromacris nuptials; Cytogenetic; Citogenética; Cariótipo; Chromacris Speciosa; Gafanhoto; Fish.
Ano: 2005 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/156668
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A multibiomarker approach on the Atlantic tomcod (Microgadus tomcod) in the St. Lawrence Estuary ArchiMer
Dupuy, Celie; Couillard, Catherine M.; Laroche, Jean; Nellis, Pierre; Brousseau, Pauline; Fournier, Michel.
A multibiomarker approach was developed on juvenile Atlantic tomcod (Microgadus tomcod) to evaluate the pertinence of this approach for low-cost screening assessment of the environmental quality of various coastal sites within estuaries. Several biometric indices and biomarkers (ethoxyresorufin-O-deethylase (EROD) activity, metallothionein concentration, and immune responses) were investigated on immature and maturing tomcods (a parts per thousand currency sign31 months) collected in four environmentally contrasted sites in the St. Lawrence Estuary (SLE). Simultaneous examination of various age classes provides the opportunity to detect short-term responses in sensitive young-of-the-year fish (e.g., EROD induction) and longer-time effects associated with...
Tipo: Text Palavras-chave: Biometric indexes; EROD; Metallothionein; Immunotoxicity; Pollution; Fish.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00125/23578/21501.pdf
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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 Biological Sciences
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
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A pesca no Pantanal Sul: situação atual e perspectivas. Infoteca-e
CATELLA, A. C..
Informações pesqueiras - conhecer para decidir; Os produtos da pesca profissional artesanal e da esportiva; Delimitação de estoques pesqueiros; O peixe mudou de mão; Novas mudanças no perfil da pesca; Pesque e solte - intencional e não intencional; Nível de exploração da pesca; Espécies subaproveitadas; Agregando valor ao pescado; Peixe de granja e peixe caipira; Conhecimento ecológico tradicional; Perfil do pescador profissional artesanal; Crise do setor turístico pesqueiro; Alternativas para o setor turístico pesqueiro; Novas instituições no cenário da pesca; Gestão participativa; Fatores externos à pesca; Fatores naturais e antrópicos; Escolha do modelo de desenvolvimento.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Pesca; Peixe; Produção; Pantanal; Mato Grosso do Sul; Brasil; Fishery; Fish; Production; Brazil.
Ano: 2003 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/799005
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A polygenic hypothesis for sex determination in the European sea bass - Dicentrarchus labrax ArchiMer
Vandeputte, Marc; Dupont Nivet, M; Chavanne, H; Chatain, Beatrice.
Polygenic sex determination, although suspected in several species, is thought to be evolutionarily unstable and has been proven in very few cases. In the European sea bass, temperature is known to influence the sex ratio. We set up a factorial mating, producing 5.893 individuals from 253 full-sib families, all reared in a single batch to avoid any between-families environmental effects. The proportion of females in the offspring was 18.3%, with a large variation between families. Interpreting sex as a threshold trait, the heritability estimate was 0.62 +/- 0.12. The observed distribution of family sex ratios was in accordance with a polygenic model or with a four-sex-factors system with environmental variance and could not be explained by any genetic...
Tipo: Text Palavras-chave: Dicentrarchus labrax; Fish; Growth; Heritability; Sex ratio.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-3526.pdf
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A River Story: Waters in the Godineau Swamp OceanDocs
Tipo: Other Palavras-chave: Swamps; Fish; Aquatic environment; Rivers; Wetlands; Swamps; Fish; Rivers; Wetlands; Aquatic environment; Http://aims.fao.org/aos/agrovoc/c_7544; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_8371; Http://aims.fao.org/aos/agrovoc/c_554.
Ano: 2003 URL: http://hdl.handle.net/1834/2916
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A step toward the definition of ecological indicators of the impact of fishing on the fish assemblage of the Abore reef reserve (New Caledonia) ArchiMer
Amand, Marion; Pelletier, Dominique; Ferrari, Jocelyne; Kulbicki, Michel.
Marine Protected Areas (MPA) are often contemplated as a tool for the sustainable management of exploited resources and ecosystem conservation. This paper proposes an approach to establish a statistical diagnostic of the effects of MPAs on fish assemblages, and define corresponding ecological indicators. This requires choosing relevant variables (abundance, diversity, demographic parameters..) and appropriate statistical methods. The study was based on data from the Abore reef Reserve in New Caledonia. Two sets of methods: 1-inferential linear models (ANOVA, GLM): 2- Partial Least Squares (PLS) methods of regression, were used to test the effects of this MPA. PLS enabled us to test simultaneously within a model, density, species richness, biomass and mean...
Tipo: Text Palavras-chave: New Caledonia; PLS regression; Ecological indicators; Fishing impact; Coral reef; Fish; Marine Protected Areas.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/publication-398.pdf
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Abundancia y distribución de las especies ícticas (Osteichthyes) del río San Francisco-Cosquín, Córdoba, Argentina Iheringia, Sér. Zool.
Hued,Andrea Cecilia; Bistoni,María de los Ángeles.
It was made the characterization of the San Francisco-Cosquín Mountain River fish community, Córdoba, Argentina. Samples of fish were taken from selected sites from November 1998 to November 1999. Eleven species were recorded, eight of which are first reports for this river. Relative abundance for each species, species richness, diversity and dominance were estimated. Bryconamericus iheringi (Boulenger, 1887) y Jenynsia multidentata (Jenyns, 1842) were the most abundant.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish; Freshwater; Community attributes.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212001000200010
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Acceptance of dishes based on mechanically separated meat of tambaqui (Colossoma macropomum) in a public school, Brazil. Repositório Alice
ALMEIDA, H. C. G.; MACIEL, E. da S.; QUARESMA, F. R. P.; FREITAS, A. A..
In Brazil, due to economic and social factors, public policies are needed to grant access to quality nutrition in school. This provision should respect the local food culture; however, in the North, the region with the highest production of inland fisheries, fish consumption among students is still very low. The aim of the present study is to characterize Tambaqui (Colossoma macropomum) MSM, suggest planned school dishes based on this MSM and assesses their acceptability among students at the elementary and high school levels in northern Brazil. The study was carried out over one month and was a quantitative (hedonic scale and leftover/intake index) and qualitative research about preference. The participants were 120 elementary- and high-school students...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Escola pública; Peixe de água doce; Tambaqui; Programa de nutrição; Food and nutrition programs; Health services; Fish; Public schools.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1083365
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Acúmulo da mistura dos herbicidas ametrina e tebutiurom em tilapia (Oreochromis niloticus). Repositório Alice
CHALUPE, V. C.; QUEIROZ, S. C. do N. de; FERRACINI, V. L.; MELLO, M. A. M. M. e; JONSSON, C. M..
Resumo: A prática de uso intensivo de herbicidas na atividade canavieira há elevado risco de comprometimento da qualidade das águas e dos organismos que ai habitam devido às perdas de herbicidas por escoamento superficial, lixiviação ou outros processos. Apesar de não permitido, o herbicida tebutiurom é usado pelas usinas de cana-de-açúcar em mistura com a ametrina na dose de 1,2 e 2,0 kg.ha-1 de ingrediente ativo (i.a.), respectivamente. No presente trabalho avaliou-se a dinâmica de uma associação dos herbicidas ametrina e tebutiurom quanto à sua incorporação e eliminação do tecido muscular de tilápias (Oreochromis niloticus) submetidas a doses subletais. A maior relação "Concentração no peixe/Concentração na água" (14 dias de exposição), adotada para o...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Bioconcentração; Resíduo químico; Herbicida; Alimento; Peixe de água doce; Tilapia; Herbicides; Bioaccumulation; Fish.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1006660
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Acute exposure of fish to nano-TiO2 at environmental levels of ultraviolet light. Repositório Alice
CLEMENTE, Z.; CASTRO, V. L. S. S. de; FEITOSA, L. O.; LIMA, R.; JONSSON, C. M.; MAIA, A. de H. N.; FRACETO, L. F..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Dióxido de titânio; Nano-TiO2; Nanotecnologia; Substância tóxica; Impacto ambiental; Peixe; Pacu; Biomarkers; Ecotoxicology; Fish; Nanotechnology; Piaractus mesopotamicus; Titanium dioxide; Ultraviolet radiation.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/981722
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Acute intoxication by deltamethrin in jundia: emphasis on clinical, biochemical and haematological effects. Repositório Alice
GALEB, L. do A. G.; GANECO, L. N.; FREDIANELLI, A. C.; WAGNER, R.; FAM, A. L. P. D'A; ROCHA, D. C. C.; KIRSCHNIK, P. G.; PIMPÃO, C. T..
Deltamethrin (DM) is a synthetic pyrethroid pesticide highly toxic to aquatic organisms. Because of its lipophilic feature it can be highly absorbed by the fish gills, which partially explains the high sensitivity of these animals to DM exposure in concentrations up to a thousand times lower than in mammals. This study compared clinical, biochemical and haematological observations between DM intoxicated and nonintoxicated fish. The experiment involved five exposure conditions (control and four concentrations of DM) and was executed in triplicates with 4 animals per set (n=60). The first behavior changes represented by rapid operculum movement and irregular or on the surface swimming were observed shortly after exposure to the concentrations of 0.5, 1.0 and...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Peixe; Toxidez; Rhamdia quelen; Enzima; Glóbulo branco; Piretrina; Fish; Leukocytes; Pyrethrins; Toxicity.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/960389
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Acute toxicity of azadirachtin to a teleost, Heteropneustes fossilis - doi: 10.4025/actascibiolsci.v34i2.9455 Biological Sciences
Kumar, Abhishek; DDU Gorakhpur University - India; Prasad, ManiRam; DDU Gorakhpur University - India; Mishra, Diwakar; DDU Gorakhpur University - India; Srivastav, Sunil Kumar; DDU Gorakhpur University - India; Srivastav, Ajai Kumar; DDU Gorakhpur University - India.
The acute static renewal test of a botanical pesticide - azadirachtin for the freshwater catfish, Heteropneustes fossilis has been performed to determine the LC50 values at different exposure period. The LC50 values at various exposure periods are 173.06 mg L-1 for 24h; 80.69 mg L-1 for 48h; 58.57 mg L-1 for 72h and 52.35 mg L-1 for 96h. The upper confidence limits were 196.87, 86.91, 79.20 and 70.04 mg L-1 for 24, 48, 72 and 96 h and lower confidence limits were 154.01, 74.24, 37.33 and 33.83 mg L-1, respectively. These results indicate that azadirachtin exposure to the fish caused toxic effects.
Palavras-chave: Neem; Azadirachtin; LC50; Heteropneustes fossilis; Fish Animal Morphology and Physiology; Toxicology Neem azadirachtin; LC50; Heteropneustes fossilis; Fish.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/9455
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Acute Toxicity Of Euphorbia Royleana Boiss (Euphorbiaceae) latex on freshwater catfish, Heteropneustes Fossilis (Siluriformes, Heteropneustidae) Acta Toxicol. Argent.
ManiRam,Prasad; Abhishek,Kumar; Diwakar,Mishra; Sunil K,Srivastav; Ajai K,Srivastav.
An acute toxicity test was performed by using a four-day static renewal test to determine the LC50 value of aqueous extract of Euphorbia royleana latex for the freshwater fsh, Heteropneustes fossilis. The LC50 values, their upper and lower confdence limits and slope functions were calculated. The LC50 values for aqueous extract of Euphorbia royleana latex at various exposure periods were 7.758 mg/L for 24 h, 5.847 mg/L for 48 h, 4.474 mg/L for 72 h and 3.090 mg/L for 96 h. The regression coeffcient showed that there was signifcant negative correlation between exposure time and different LC values. Hence, it is concluded that the concentration to produce toxicity of latex of Euphorbia royleana is comparable and close to the concentration to produce toxicity...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish; Euphorbia royleana; Toxicity; LC50.
Ano: 2010 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-37432010000100001
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Aeromonas species isolated from PINTADO fish (Pseudoplatystoma sp): virulence factors and drug susceptibility Rev. Microbiol.
Rall,Vera Lúcia Mores; Iaria,Sebastião Timo; Heidtmann,Sandra; Pimenta,Fabiana Cristina; Gamba,Rosa Carvalho; Pedroso,Débora Midori Myaki.
Aeromonas has been described as an emergent foodborne pathogen of increasing importance. In this study, we report that 48% of 50 Pintado fish samples collected at the retail market of São Paulo city were positive for Aeromonas sp, as detected by the direct plating method. When the presence/absence method was used, the positivity was 42%. A. caviae was the most frequent species, followed by A. hydrophila and A. sobria. Production of cytotoxic enterotoxin, observed in suckling mouse assay, was detected in 67% of A. sobria strains, in 60% of A. hydrophila strains and in 40% of A. caviae strains. In vitro tests, performed with HEp-2 cells, showed that 88% of A. hydrophila, 27% of A. sobria and 13% of A. caviae strains were positive for this toxin. The in vivo...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aeromonas sp; Virulence factors; Drug susceptibility; Fish.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141998000300015
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Alimentacao de peixes carnivoros da planicie inundavel do Rio Miranda, Pantanal, Mato Grosso do Sul, Brasil. Infoteca-e
RESENDE, E.K. de; PEREIRA, R.A.C.; ALMEIDA, V.L.L. de; SILVA, A.G. da..
E analisada a alimentacao de 15 especies de peixes carnivoros de quatro ambientes na planicie de inundacao do baixo rio Miranda, na regiao do Pantanal de Mato Grosso do Sul. Estas especies carnivoras sao generalistas e se alimentam de peixes e outras presas que estejam disponiveis no ambiente, como camaroes, na Baia Cinza. Meandros abandonados, vazantes e baias constituem lares de alimentacao de especies carnivoras de pequeno porte, bem como de formas jovens de grande porte.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Peixe carnivoro; Alimentacao; Rio Miranda; Pantanal; Carnivorous fishes; Feeding; Floodplain; Fish; Food; Miranda river.
Ano: 1996 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/789740
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Alimentacao do tucunare Cichla sp. (Pisces, cichlidae) um peixe introduzido no Pantanal, Brasil. Infoteca-e
SUAREZ, I. R.; NASCIMENTO, F. L.; CATELLA, A. C..
Com o objetivo de estudar a alimentacao do tucunare (Cichla sp.) no Pantanal, foram realizadas cinco coletas entre novembro/1992 e junho/1994. Foram capturados 425 especimes, destes 207 apresentaram conteudo estomacal. Foram analisadas a Frequencia de Ocorrencia (FO), Volume Relativo (Vr) e "Indice Alimentar" (IA). Os peixes foram o principal item alimentar (FO=97,10%, Vr=96,45, IAi=99,81%), seguido de "restos vegetais", (FO=6,28%, Vr=2,49, IAi=16%) e camaroes (FO=1,93%, Vr=1,04, IAi=2%). Foram identificadas 21 especies de peixes no conteudo estomacal do "tucunare". Curimatella dorsalis foi a presa predominante em numero de individuos (18,75%) e em biomassa (28,81%). A familia mais representativa em biomassa foi Curimatidae (27,36%) e Cichlidae (26,93%);...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Peixe; Tucunare; Alimentacao; Pantanal; Cichla sp; Fish; Feeding habits; Wetland.
Ano: 2001 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/809807
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Alteracoes limnologicas no Rio Paraguai ("dequada") e o fenomeno natural de mortandade de peixes no Pantanal Mato-Grossense - MS. Infoteca-e
CALHEIROS, D. F.; FERREIRA, C. J. A..
No Pantanal, ocorre um fenomeno natural de deterioracao da qualidade da agua, denominado regionalmente como "Dequada", relacionado a decomposicao da grande massa de materia organica submersa no inicio do processo de inundacao. Sua magnitude e dependente das caracteristicas do pulso de inundacao, ou seja, caracteristicas da fase de seca anterior e do periodo de inundacao subsequente (volume e velocidade). De acordo com essa magnitude, pode provocar mortandade massiva de peixes (podendo alcancar a ordem de milhares de toneladas), docorrente da deplecao de oxigenio e do aumento da concentracao de gas carbonico, resultantes dos processos de oxidacao da materia organica, tanto nos campos inundados, quanto na coluna d'agua dos rios. Os peixes moribundos...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Limnologia; Dequada; Peixe; Mortandade; Rio Paraguai; Pantanal; Mato Grosso do Sul; Brasil; Limnology; Fish; Mortality; Kills; Paraguay river; Brazil.
Ano: 1996 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/792189
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AMP-deaminase in elasmobranch fish: A comparative histochemical and enzymatic study ArchiMer
Thebault, Marie-t; Izem, Lahoucine; Leroy, Jean Paul; Gobin, Eric; Charrier, Gregory; Raffin, Jean-paul.
AMP-deaminase activity was measured in white muscle from a wide range of fish, including one cyclostome, 13 chondrosteans, and one teleost to elucidate the pattern of the AMP-deaminase activity in white muscle of fish. Compared to a mammalian (rat) muscle extract, low enzyme activities are found in the cyclostome and two elasmobranchs from two families (Scyliorhinidae, Hexanchidae). In contrast, higher AMP-deaminase activities, similar to mammals, are expressed in Squalidae, all families of skates, Chimaeridae and in the teleostean fish. We then compared AMP-deaminase activities in red and white muscles from two representative elasmobranch fish, the dogfish (Scyliorhinus canicula) and the thornback ray (Raja clavata). The fibre type composition and...
Tipo: Text Palavras-chave: White fibres; Red fibres; Muscle; Histology; Fish; Evolution; Elasmobranch; AMP deaminase.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-635.pdf
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Ampliación del ámbito geográfico de Notarius grandicassis (Siluriformes: Ariidae) en el Caribe colombiano. OceanDocs
Sánchez-Rodríguez, D.C.; Acero-P., A..
The ariid Notarius grandicassis (Valenciennes, 1840), commonly known as Thomas sea catfish, occurs at northeastern South America, ranging between Colombia and Brasil. It was reported originally from the mouth of the Amazon to the Golfo de Venezuela. In 2002, it was reported from the Colombian Guajira peninsula. Herein, we report the species from the mouth of the Magdalena River (Bocas de Ceniza), where it is rather frequently obtained by fishermen.
Tipo: Journal Contribution Palavras-chave: Fish; Fish; Http://aims.fao.org/aos/agrovoc/c_15903.
Ano: 2008 URL: http://hdl.handle.net/1834/3512
Registros recuperados: 389
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