Base de dados : MEDLINE
Pesquisa : B01.050.150.900.493.602.600 [Categoria DeCS]
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  1 / 1204 MEDLINE  
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[PMID]:29406161
[Au] Autor:Voronin VN; Golineva EA; Dudin AS
[Ti] Título:[Henneguya wolinensis (Myxosporea: Myxobolidae), a new for Russian fauna parasite from the perch Perca fluviatilis L.].
[So] Source:Parazitologiia;51(2):165-9, 2017 Mar-Apr.
[Is] ISSN:0031-1847
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The infection of the perch Perea fluviatilis L. with myxosporean Henneguya wolinensis Romuk-Wodoracki, 1990 has been detected. This is the second finding of this parasite after its original descriptin and the first for Russia. Plasmodium of this species develops in the epidermis under scales throughout the body causing the formation of white cysts up to 1 mm. Spores are fusiform, large, their average length constitutes 25.5 µm without the caudal appendages and 62 µm with them. Slight morphological differences in spore structure comparing to original description have been revealed.
[Mh] Termos MeSH primário: Cistos/patologia
Epiderme/parasitologia
Myxozoa/fisiologia
Percas/parasitologia
Esporos/fisiologia
[Mh] Termos MeSH secundário: Animais
Epiderme/patologia
Doenças dos Peixes/epidemiologia
Doenças dos Peixes/parasitologia
Myxozoa/anatomia & histologia
Myxozoa/crescimento & desenvolvimento
Doenças Parasitárias em Animais/epidemiologia
Rios/parasitologia
Federação Russa/epidemiologia
Esporos/crescimento & desenvolvimento
Esporos/ultraestrutura
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180222
[Lr] Data última revisão:
180222
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180207
[St] Status:MEDLINE


  2 / 1204 MEDLINE  
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[PMID]:29242324
[Au] Autor:Enserink M
[Ti] Título:Swedish plastics study fabricated, panel finds.
[So] Source:Science;358(6369):1367, 2017 Dec 15.
[Is] ISSN:1095-9203
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Percas
Plásticos
Má Conduta Científica
Poluentes Químicos da Água
[Mh] Termos MeSH secundário: Animais
Larva
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plastics); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180115
[Lr] Data última revisão:
180115
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171216
[St] Status:MEDLINE
[do] DOI:10.1126/science.358.6369.1367


  3 / 1204 MEDLINE  
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[PMID]:28767740
[Au] Autor:Le MH
[Ad] Endereço:Institute of Aquaculture, Nha Trang University, Nha Trang City, Vietnam. eamielhoanglm@ntu.edu.vn.
[Ti] Título:Cryopreservation of Waigieu Seaperch (Psammoperca waigiensis) Sperm.
[So] Source:Cryo Letters;38(3):178-186, 2017 May/Jun.
[Is] ISSN:0143-2044
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The cryopreservation protocols have been applied for sperm prevervation of many fish species, but have not been developed for Waigieu seaperch Psammoperca waigiensis, an important aquaculture species in Vietnam. OBJECTIVE: The objectives of this study were to find the best cryoprotectant, extender, freezing method and dilution ratio for sperm cryopreservation of Waigieu seaperch. MATERIALS AND METHODS: An effective protocol was established by comparing different cryodiluents created by mixing various cryoprotectants and extenders. The different freezing methods and dilution ratios were also used in an effective protocol. The motility (MOT), straight-linear velocity (VSL) and fertility rates of post-thawed sperm were comparable to that of fresh sperm. RESULTS: The results indicated that at ratio of 1:3 in cryodiluent contained ASP (artificial seminal plasma) as extender supplement 10 percent DMSO as cryoprotectant and cryopreserved with the freezing method as two steps, reached the best MOT and VSL of post-thawed sperm. The fertilization rate and hatching rate of the post-thawed sperm cryopreserved for 1 week, 1 month, or 1 year in liquid nitrogen (66.93 +/- 0.93 percent and 44.16 +/- 1.47 percent, 65.40 +/- 1.11 percent and 43.88 +/- 1.54 percent, or 65.13 +/- 1.31 percent and 43.24 +/- 1.41 percent) were similar to that of fresh sperm (68.67 +/- 1.27 percent and 45.12 +/- 1.92 percent). CONCLUSION: Using cryodiluent contained the ASP as extender and 10 percent DMSO as cryoprotectant to semen at the ratio of 1:3 (v/v) in the freezing method as two steps (-76 degree C for 5 minutes and -196 degree C) is an effective protocol for cryopreservation, especially hatching success of egg fertilized by post-thawed sperm of Waigieu seaperch.
[Mh] Termos MeSH primário: Criopreservação/métodos
Crioprotetores/farmacologia
Percas
Preservação do Sêmen/métodos
[Mh] Termos MeSH secundário: Animais
Masculino
Motilidade Espermática/efeitos dos fármacos
Espermatozoides/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Cryoprotective Agents)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170831
[Lr] Data última revisão:
170831
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170803
[St] Status:MEDLINE


  4 / 1204 MEDLINE  
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[PMID]:28650963
[Au] Autor:Heermann L; DeAngelis DL; Borcherding J
[Ad] Endereço:Institute for Zoology of the University of Cologne, Department of General Ecology, Cologne, Germany.
[Ti] Título:A new mechanistic approach for the further development of a population with established size bimodality.
[So] Source:PLoS One;12(6):e0179339, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Usually, the origin of a within-cohort bimodal size distribution is assumed to be caused by initial size differences or by one discrete period of accelerated growth for one part of the population. The aim of this study was to determine if more continuous pathways exist allowing shifts from the small to the large fraction within a bimodal age-cohort. Therefore, a Eurasian perch population, which had already developed a bimodal size-distribution and had differential resource use of the two size-cohorts, was examined. Results revealed that formation of a bimodal size-distribution can be a continuous process. Perch from the small size-cohort were able to grow into the large size-cohort by feeding on macroinvertebrates not used by their conspecifics. The diet shifts were accompanied by morphological shape changes. Intra-specific competition seemed to trigger the development towards an increasing number of large individuals. A stage-structured matrix model confirmed these assumptions. The fact that bimodality can be a continuous process is important to consider for the understanding of ecological processes and links within ecosystems.
[Mh] Termos MeSH primário: Tamanho Corporal/fisiologia
Ecossistema
Modelos Biológicos
Percas/fisiologia
[Mh] Termos MeSH secundário: Animais
Dinâmica Populacional
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170920
[Lr] Data última revisão:
170920
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170627
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0179339


  5 / 1204 MEDLINE  
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[PMID]:28441436
[Au] Autor:Dysthe JC; Carim KJ; Ruggles M; McKelvey KS; Young MK; Schwartz MK
[Ad] Endereço:United States Department of Agriculture, Forest Service, National Genomics Center for Wildlife and Fish Conservation, Rocky Mountain Research Station, Missoula, Montana, United States of America.
[Ti] Título:Environmental DNA assays for the sister taxa sauger (Sander canadensis) and walleye (Sander vitreus).
[So] Source:PLoS One;12(4):e0176459, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Sauger (Sander canadensis) and walleye (S. vitreus) are percid fishes that naturally co-occur throughout much of the eastern United States. The native range of sauger extends into the upper Missouri River drainage where walleye did not historically occur, but have been stocked as a sport fish. Sauger populations have been declining due to habitat loss, fragmentation, and competition with non-native species, such as walleye. To effectively manage sauger populations, it is necessary to identify areas where sauger occur, and particularly where they co-occur with walleye. We developed quantitative PCR assays that can detect sauger and walleye DNA in filtered water samples. Each assay efficiently detected low quantities of target DNA and failed to detect DNA of non-target species with which they commonly co-occur.
[Mh] Termos MeSH primário: Conservação dos Recursos Naturais/métodos
Ecossistema
Percas/genética
Reação em Cadeia da Polimerase em Tempo Real
Rios
[Mh] Termos MeSH secundário: Animais
Percas/metabolismo
Estados Unidos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170906
[Lr] Data última revisão:
170906
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170426
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0176459


  6 / 1204 MEDLINE  
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[PMID]:28434794
[Au] Autor:Almeida LZ; Guffey SC; Sepúlveda MS; Höök TO
[Ad] Endereço:Department of Forestry and Natural Resources, Purdue University, 195 Marsteller Street, West Lafayette, IN 47907-2033, USA; Ecological Sciences and Engineering Interdisciplinary Graduate Program, Purdue University, 195 Marsteller Street, West Lafayette, IN 47907-2033, USA. Electronic address: almeid
[Ti] Título:Behavioral and physiological responses of yellow perch (Perca flavescens) to moderate hypoxia.
[So] Source:Comp Biochem Physiol A Mol Integr Physiol;209:47-55, 2017 Jul.
[Is] ISSN:1531-4332
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:While severe hypoxia can be lethal and is usually avoided by mobile aquatic organisms, moderate hypoxic conditions are likely more prevalent and may affect organisms, such as fishes, in a variety of systems. However, fishes have the potential to adjust physiologically and behaviorally and thus reduce the negative effects of hypoxia. Quantifying such physiological responses may shed light on the ability of fishes to tolerate reduced oxygen concentrations. This study assessed how two different hatchery populations of yellow perch Perca flavescens, a fish that is likely to encounter moderate hypoxic conditions in a variety of systems, responded to moderate hypoxic exposure through three experiments: 1) a behavioral foraging experiment, 2) an acute exposure experiment, and 3) a chronic exposure experiment. No marked behavioral or physiological adjustments were observed in response to hypoxia (e.g., hemoglobin, feeding rate, movement frequency, gene expression did not change to a significant degree), possibly indicating a high tolerance level in this species. This may allow yellow perch to utilize areas of moderate hypoxia to continue foraging while avoiding predators that may be more sensitive to moderately low oxygen.
[Mh] Termos MeSH primário: Comportamento Animal/fisiologia
Hipóxia/metabolismo
Oxigênio/metabolismo
Percas/metabolismo
[Mh] Termos MeSH secundário: Animais
Brânquias/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
S88TT14065 (Oxygen)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170804
[Lr] Data última revisão:
170804
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170425
[St] Status:MEDLINE


  7 / 1204 MEDLINE  
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[PMID]:28349540
[Au] Autor:Hall KC; Broadhurst MK; Butcher PA; Cameron L; Rowland SJ; Millar RB
[Ad] Endereço:New South Wales Department of Primary Industries, National Marine Science Centre, PO Box 4321, Coffs Harbour, NSW, 2450, Australia.
[Ti] Título:Sublethal effects of angling and release on golden perch Macquaria ambigua: implications for reproduction and fish health.
[So] Source:J Fish Biol;90(5):1980-1998, 2017 May.
[Is] ISSN:1095-8649
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The present study tested the hypothesis of no delayed sublethal effects of mild angling and release on the feeding, growth, somatic condition and gonadal development of golden perch Macquaria ambigua during gametogenesis. Subsamples of adult M. ambigua (n = 17-21 of 207), originally captured from the wild and stocked into ten 0·1 ha earthen ponds, were angled and released during early and late gametogenesis. Wild samples that were concurrently collected throughout the experiment underwent rapid and synchronous gonadal development and many spawned. While no spawning occurred in the ponds, most M. ambigua underwent normal gonadal development to maturity, including the angled fish. Angled fish also fed, maintained condition and actually grew faster than non-angled captive controls. Although females that were angled during late gametogenesis more readily ingested and retained baited hooks, neither their subsequent condition nor gonadal development was significantly affected. The predominance of null results was attributed to the combined effects of the flexible reproductive strategy of M. ambigua, the benignness of mouth hooking and immediate release, and possible methodological issues arising from differential hooking success of more aggressive and resilient individuals. The findings support earlier catch-and-release research, but contrast with reports of acute reproductive effects following capture and handling for aquaculture broodstock. This discrepancy highlights the need for research to specifically address welfare questions relevant to recreational fisheries across various species and angling scenarios.
[Mh] Termos MeSH primário: Bem-Estar do Animal
Pesqueiros
Percas/fisiologia
Reprodução
[Mh] Termos MeSH secundário: Animais
Feminino
Gônadas
Masculino
Percas/crescimento & desenvolvimento
Recreação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171011
[Lr] Data última revisão:
171011
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170329
[St] Status:MEDLINE
[do] DOI:10.1111/jfb.13282


  8 / 1204 MEDLINE  
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[PMID]:28347889
[Au] Autor:Beheregaray LB; Pfeiffer LV; Attard CRM; Sandoval-Castillo J; Domingos FMCB; Faulks LK; Gilligan DM; Unmack PJ
[Ad] Endereço:Molecular Ecology Laboratory, School of Biological Sciences, Flinders University, Adelaide, SA 5001, Australia. Electronic address: Luciano.Beheregaray@flinders.edu.au.
[Ti] Título:Genome-wide data delimits multiple climate-determined species ranges in a widespread Australian fish, the golden perch (Macquaria ambigua).
[So] Source:Mol Phylogenet Evol;111:65-75, 2017 Jun.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Species range limits often fluctuate in space and time in response to variation in environmental factors and to gradual niche evolution due to changes in adaptive traits. We used genome-wide data to investigate evolutionary divergence and species range limits in a generalist and highly dispersive fish species that shows an unusually wide distribution across arid and semi-arid regions of Australia. We generated ddRAD data (18,979 filtered SNPs and 1.725million bp of sequences) for samples from 27 localities spanning the native range of golden perch, Macquaria ambigua (Teleostei; Percichthyidae). Our analytical framework uses population genomics to assess connectivity and population structure using model-based and model-free approaches, phylogenetics to clarify evolutionary relationships, and a coalescent-based Bayesian species delimitation method to assess statistical support of inferred species boundaries. Addressing uncertainties regarding range limits and taxonomy is particularly relevant for this iconic Australian species because of the intensive stocking activities undertaken to support its recreational fishery and its predicted range shifts associated with ongoing climate change. Strong population genomic, phylogenetic, and coalescent species delimitation support was obtained for three separately evolving metapopulation lineages, each lineage should be considered a distinct cryptic species of golden perch. Their range limits match the climate-determined boundaries of main river basins, despite the ability of golden perch to cross drainage divides. We also identified cases suggestive of anthropogenic hybridization between lineages due to stocking of this recreationally important fish, as well as a potential hybrid zone with a temporally stable pattern of admixture. Our work informs on the consequences of aridification in the evolution of aquatic organisms, a topic poorly represented in the literature. It also shows that genome-scale data can substantially improve and rectify inferences about taxonomy, hybridization and conservation management previously proposed by detailed genetic studies.
[Mh] Termos MeSH primário: Mudança Climática
Ecossistema
Genoma
Percas/genética
[Mh] Termos MeSH secundário: Animais
Austrália
Sequência de Bases
Análise por Conglomerados
Análise Discriminante
Geografia
Funções Verossimilhança
Filogenia
Polimorfismo de Nucleotídeo Único/genética
Análise de Componente Principal
Rios
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171009
[Lr] Data última revisão:
171009
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170329
[St] Status:MEDLINE


  9 / 1204 MEDLINE  
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[PMID]:28336620
[Au] Autor:Enserink M
[Ti] Título:Fishy business.
[So] Source:Science;355(6331):1254-1257, 2017 Mar 24.
[Is] ISSN:1095-9203
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Biologia de Ecossistemas de Água Doce
Biologia Marinha
Percas
Má Conduta Científica
[Mh] Termos MeSH secundário: Animais
Ingestão de Alimentos
Esocidae
Cadeia Alimentar
Óvulo
Publicações Periódicas como Assunto
Plásticos
Suécia
Poluentes da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plastics); 0 (Water Pollutants)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171103
[Lr] Data última revisão:
171103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170325
[St] Status:MEDLINE
[do] DOI:10.1126/science.355.6331.1254


  10 / 1204 MEDLINE  
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[PMID]:28257494
[Au] Autor:Chen X; Wang J; Qian L; Gaughan S; Xiang W; Ai T; Fan Z; Wang C
[Ad] Endereço:Key Laboratory of Freshwater Fisheries Germplasm Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai, China.
[Ti] Título:Domestication drive the changes of immune and digestive system of Eurasian perch (Perca fluviatilis).
[So] Source:PLoS One;12(3):e0172903, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Domestication has altered a variety of traits within the Eurasian perch (Perca fluviatilis), including phenotypic, physiological and behavioral traits of Eurasian perch (Perca fluviatilis). Little is known, however, about the genetic changes between domesticated and wild Eurasian perch. In this study, we assembled a high-quality de novo reference transcriptome and identified differentially expressed genes between wild and domesticated Eurasian perch. A total of 113,709 transcripts were assembled, and 58,380 transcripts were annotated. Transcriptomic comparison revealed 630 differentially expressed genes between domesticated and wild Eurasian perch. Within domesticated Eurasian perch there were 412 genes that were up-regulated including MHCI, MHCII, chia, ighm within immune system development. There were 218 genes including try1, ctrl, ctrb, cela3b, cpa1 and cpb1, which were down-regulated that were associated with digestive processes. Our results indicated domestication drives the changes of immune and digestive system of Eurasian perch. Our study not only provide valuable genetic resources for further studies in Eurasian perch, but also provide novel insights into the genetic basis of physiological changes in Eurasian perch during domestication process.
[Mh] Termos MeSH primário: Domesticação
Percas/genética
Transcriptoma/genética
[Mh] Termos MeSH secundário: Animais
Sistema Digestório
Regulação da Expressão Gênica/genética
Sistema Imunitário
Percas/fisiologia
Estresse Fisiológico/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170822
[Lr] Data última revisão:
170822
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170304
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0172903



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