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[PMID]: 28741850 [Au] Autor: Kovach RP; Muhlfeld CC; Al-Chokhachy R; Amish SJ; Kershner JL; Leary RF; Lowe WH; Luikart G; Matson P; Schmetterling DA; Shepard BB; Westley PAH; Whited D; Whiteley A; Allendorf FW [Ad] Endereço: Northern Rocky Mountain Science Center, U.S. Geological Survey, West Glacier, MT, USA. [Ti] Título: No evidence for ecological segregation protecting native trout from invasive hybridization. [So] Source: Glob Chang Biol;23(12):e11-e12, 2017 12. [Is] ISSN: 1365-2486 [Cp] País de publicação: England [La] Idioma: eng [Mh] Termos MeSH primário: Hibridização Genética Truta [Mh] Termos MeSH secundário: Animais Ecologia [Pt] Tipo de publicação: LETTER; COMMENT [Em] Mês de entrada: 1801 [Cu] Atualização por classe: 180125 [Lr] Data última revisão: 180125 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 170726 [St] Status: MEDLINE [do] DOI: 10.1111/gcb.13825

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[PMID]: 28456451 [Au] Autor: Bussy U; Chung-Davidson YW; Buchinger TJ; Li K; Li W [Ad] Endereço: Department of Fisheries and Wildlife, Michigan State University, Room 13 Natural Resources Building, 480 Wilson Road, East Lansing, MI 48824, USA. [Ti] Título: High-sensitivity determination of estrogens in fish plasma using chemical derivatization upstream UHPLC-MSMS. [So] Source: Steroids;123:13-19, 2017 Jul. [Is] ISSN: 1878-5867 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: This article describes the development and validation of a sensitive LC-MSMS method for determination of estrogen in fish plasma. Dansyl chloride derivatization of the phenol functional group in estrogen was used to enhance the response to atmospheric pressure ionization leading to improve the sensitivity. Individual C internal standards were selected after comparison with deuterated standards. Liquid-liquid extraction (ethyl acetate or methyl tert-butyl ether) and protein precipitation (acetonitrile, methanol or acetone) were compared for the extraction and clean-up of estrogens from fish plasma. Ethyl acetate was selected as the best alternative with recovery ranging from 61 to 96% and matrix effect ranging from 88 to 106%. Limits of quantification ranged from 0.5 to 1pg/mL showing a gain in sensitivity of 10,000 times over electrospray ionization of underivatized estrogens. Accuracy and precision were validated over three consecutive days and the method was applied to measure estrogen in sea lamprey (Petromyzon marinus) and lake trout (Salvelinus namaycush) plasma. Estrone and estriol were detected in fish below 1ng/mL in plasma, justifying the need of a highly sensitive LC-MSMS quantification method. [Mh] Termos MeSH primário: Análise Química do Sangue/métodos Cromatografia Líquida de Alta Pressão/métodos Estrogênios/sangue Estrogênios/química Petromyzon/sangue Espectrometria de Massas em Tandem/métodos Truta/sangue [Mh] Termos MeSH secundário: Acetatos/química Animais Estrogênios/isolamento & purificação Limite de Detecção Éteres Metílicos/química [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Acetates); 0 (Estrogens); 0 (Methyl Ethers); 29I4YB3S89 (methyl tert-butyl ether); 76845O8NMZ (ethyl acetate) [Em] Mês de entrada: 1801 [Cu] Atualização por classe: 180108 [Lr] Data última revisão: 180108 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 170501 [St] Status: MEDLINE

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[PMID]: 29215222 [Au] Autor: Busarova OY; Knudsen R; Markevich GN [Ti] Título: [PARASITES FAUNA OF THE LAKE KRONOTSKOE CHARRS (SALVELINUS), KAMCHATKA]. [So] Source: Parazitologiia;50(6):409-25, 2016 Nov-Dec. [Is] ISSN: 0031-1847 [Cp] País de publicação: Russia (Federation) [La] Idioma: rus [Ab] Resumo: The new data on the parasites fauna of the Lake Kronotskoe sympatric charr forms (genus Salvelinus (Nilsson) Richardson, 1836) is presented. Parasites fauna of Bigmouth and Smallmouth charr forms are described for the first time. The information about Longhead charr, Nosed charr and White charr parasites is added. 29 species of parasites from 9 classes were found: Oligohymenophorea, Myxosporea, Monogenea, Trematoda, Cestoda, Nematoda, Acantocephala, Crustacea and Hirudinea. Longhead charr was the most intensively infected by Proteocephalus longicollis (Zeder, 1800) (abundance 306.0) and Neoechinorhynchus salmonis Ching, 1984 (abundance 230.0). White charr was mostly infected by Crepidostomum Braun, 1900 (abundance 242.2) and P. longicollis (abundance 183.4). Nosed charr group that feed on gammarids was infected mostly by Crepidostomum spp. (abundance 3461.3), Cyathocephalus truncatus (Pallas, 1781) (abundance 179.9) and Cystidicola farionis Fisher, 1798 (abundance 169.0); while Chironomidae consumers group was infected mostly by Diplostomum Nordmann, 1832 (abundance 62.3) and Phyllodistomum umblae (Fabricius, 1780) (abundance 27.3). Bigmouth charr was infected mostly by P. longicollis (abundance 17.0) and Eubolhrium salvelini Schrank, 1790 (abundance 11.0), Smallmouth charr form ­ by P. longicollis (abundance 67.0) and Diplostomum sp. (abundance 64.2). Sympatric flock of charrs form the Lake Kronotskoe (Kamchatka) is the most polymorphic for the genus Salvelinus in Eurasia. According to the parasitological analysis this flock consists six ecological forms. [Mh] Termos MeSH primário: Doenças dos Peixes/parasitologia Lagos/parasitologia Truta/parasitologia [Mh] Termos MeSH secundário: Animais Sibéria [Pt] Tipo de publicação: JOURNAL ARTICLE [Em] Mês de entrada: 1712 [Cu] Atualização por classe: 171221 [Lr] Data última revisão: 171221 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 171208 [St] Status: MEDLINE

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[PMID]: 29211422 [Au] Autor: Shulman BS; Shurov IL; Shirokov VA [Ti] Título: [SOME FEATURES OF THE BIOLOGY AND PARASITE FAUNA OF THE ARCTIC CHAR (SALVELINUS ALPINUS L.) IN THE LAKE MUSHTALAMPI (NORTHERN KARELIA)]. [So] Source: Parazitologiia;50(4):325-30, 2016 Jul-Aug. [Is] ISSN: 0031-1847 [Cp] País de publicação: Russia (Federation) [La] Idioma: rus [Ab] Resumo: The native population of the Arctic char in the Lake Mushtalampi was studied. The dwarf form of the Arctic char inhabiting the lake was revealed. The fish is characterized by extremely low growth rate and by early maturation. Twelve parasite species were found in the arctic char. The parasite fauna is typical of representatives of Salmonidae. Distinguishing features of this fauna include the absence of narrowly specialized char parasite species. High intensity of infection with nematodes Philonema oncorhynchi allows estimating the epizootic state of the studied char population as insufficient. [Mh] Termos MeSH primário: Doenças dos Peixes/parasitologia Lagos/parasitologia Nematoides/fisiologia Infecções por Nematoides/parasitologia Truta/parasitologia [Mh] Termos MeSH secundário: Animais Nematoides/classificação Federação Russa [Pt] Tipo de publicação: JOURNAL ARTICLE [Em] Mês de entrada: 1712 [Cu] Atualização por classe: 171221 [Lr] Data última revisão: 171221 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 171207 [St] Status: MEDLINE

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[PMID]: 28862540 [Au] Autor: Petersen K; Hultman MT; Bytingsvik J; Harju M; Evenset A; Tollefsen KE [Ad] Endereço: a Section of Ecotoxicology , Norwegian Institute for Water Research (NIVA) , Oslo , Norway. [Ti] Título: Characterizing cytotoxic and estrogenic activity of Arctic char tissue extracts in primary Arctic char hepatocytes. [So] Source: J Toxicol Environ Health A;80(16-18):1017-1030, 2017. [Is] ISSN: 1528-7394 [Cp] País de publicação: England [La] Idioma: eng [Ab] Resumo: Contaminants from various anthropogenic activities are detected in the Arctic due to long-range atmospheric transport, ocean currents, and living organisms such as migrating fish or seabirds. Although levels of persistent organic pollutants (POPs) in Arctic fish are generally low, local hot spots of contamination were found in freshwater systems such as Lake Ellasjøen at Bjørnøya (Bear Island, Norway). Higher concentrations of organic halogenated compounds (OHC), and higher levels of cytochrome P450 and DNA-double strand breaks were reported in Arctic char (Salvelinus alpinus) from this lake compared to fish from other lakes on Bjørnøya. Although several of the measured contaminants are potential endocrine disrupters, few studies have investigated potential endocrine disruptive effects of the contaminant cocktail in this fish population. The aim of this study was to compare acutely toxic and estrogenic potency of the cocktail of pollutants as evidenced by cytotoxic and/or estrogenic effects in vitro using extracts of Arctic char livers from contaminated Lake Ellasjøen with those from less contaminated Lake Laksvatn at Bjørnøya. This was performed by in situ sampling and contaminant extraction from liver tissue, followed by chemical analysis and in vitro testing of the following contaminated tissue extracts: F1-nonpolar OHC, F2-polar pesticides and metabolites of OHC, and F3-polar OHC. Contaminant levels were highest in extracts from Ellasjøen fish. The F2 and F3 extracts from Lake Laksvatn and Lake Ellasjøen fish reduced in vitro cell viability at a concentration ratio of 0.03-1 relative to tissue concentration in Arctic char. Only the F3 liver extract from Ellasjøen fish increased in vitro vitellogenin protein expression. Although compounds such as estrogenic OH-PCBs were quantified in Ellasjøen F3 extracts, it remains to be determined which compounds were inducing estrogenic effects. [Mh] Termos MeSH primário: Hepatócitos/efeitos dos fármacos Compostos Orgânicos/toxicidade Extratos de Tecidos/química Truta [Mh] Termos MeSH secundário: Animais Regiões Árticas Sobrevivência Celular/efeitos dos fármacos Células Cultivadas Disruptores Endócrinos/toxicidade Monitoramento Ambiental Poluentes Ambientais/toxicidade Feminino Hepatócitos/metabolismo Lagos/química Limite de Detecção Masculino Noruega Vitelogeninas/genética Vitelogeninas/metabolismo Poluentes Químicos da Água/toxicidade [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Endocrine Disruptors); 0 (Environmental Pollutants); 0 (Organic Chemicals); 0 (Tissue Extracts); 0 (Vitellogenins); 0 (Water Pollutants, Chemical) [Em] Mês de entrada: 1710 [Cu] Atualização por classe: 171031 [Lr] Data última revisão: 171031 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 170902 [St] Status: MEDLINE [do] DOI: 10.1080/15287394.2017.1357277

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[PMID]: 28807503 [Au] Autor: Peiman KS; Birnie-Gauvin K; Larsen MH; Colborne SF; Gilmour KM; Aarestrup K; Willmore WG; Cooke SJ [Ad] Endereço: Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental Science, Carleton University, Ottawa, ON, Canada. Electronic address: kathryn.peiman@carleton.ca. [Ti] Título: Morphological, physiological and dietary covariation in migratory and resident adult brown trout (Salmo trutta). [So] Source: Zoology (Jena);123:79-90, 2017 Aug. [Is] ISSN: 1873-2720 [Cp] País de publicação: Germany [La] Idioma: eng [Ab] Resumo: The causes and consequences of trait relationships within and among the categories of physiology, morphology, and life-history remain poorly studied. Few studies cross the boundaries of these categories, and recent reviews have pointed out not only the dearth of evidence for among-category correlations but that trait relationships may change depending on the ecological conditions a population faces. We examined changes in mean values and correlations between traits in a partially migrant population of brown trout when migrant sea-run and resident stream forms were breeding sympatrically. Within each sex and life-history strategy group, we used carbon and nitrogen stable isotopes to assess trophic level and habitat use; assessed morphology which reflects swimming and foraging ability; measured circulating cortisol as it is released in response to stressors and is involved in the transition from salt to freshwater; and determined oxidative status by measuring oxidative stress and antioxidants. We found that sea-run trout were larger and had higher values of stable isotopes, cortisol and oxidative stress compared to residents. Most groups showed some correlations between morphology and diet, indicating individual resource specialization was occurring, and we found consistent correlations between morphology and cortisol. Additionally, relationships differed between the sexes (cortisol and oxidative status were related in females but not males) and between life-history strategies (habitat use was related to oxidative status in male sea-run trout but not in either sex of residents). The differing patterns of covariation between the two life-history strategies and between the sexes suggest that the relationships among phenotypic traits are subjected to different selection pressures, illustrating the importance of integrating multiple phenotypic measures across different trait categories and contrasting life-history strategies. [Mh] Termos MeSH primário: Migração Animal/fisiologia Ecossistema Comportamento Alimentar/fisiologia Truta/anatomia & histologia Truta/fisiologia [Mh] Termos MeSH secundário: Animais Peso Corporal Hidrocortisona/sangue Oceanos e Mares Estresse Oxidativo Rios Truta/sangue [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: WI4X0X7BPJ (Hydrocortisone) [Em] Mês de entrada: 1709 [Cu] Atualização por classe: 170925 [Lr] Data última revisão: 170925 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 170816 [St] Status: MEDLINE

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[PMID]: 28750027 [Au] Autor: Oromi N; Jové M; Pascual-Pons M; Royo JL; Rocaspana R; Aparicio E; Pamplona R; Palau A; Sanuy D; Fibla J; Portero-Otin M [Ad] Endereço: Animal Science Department, ETSEA, University of Lleida, Lleida, Catalonia, Spain. [Ti] Título: Differential metabolic profiles associated to movement behaviour of stream-resident brown trout (Salmo trutta). [So] Source: PLoS One;12(7):e0181697, 2017. [Is] ISSN: 1932-6203 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: The mechanisms that can contribute in the fish movement strategies and the associated behaviour can be complex and related to the physiology, genetic and ecology of each species. In the case of the brown trout (Salmo trutta), in recent research works, individual differences in mobility have been observed in a population living in a high mountain river reach (Pyrenees, NE Spain). The population is mostly sedentary but a small percentage of individuals exhibit a mobile behavior, mainly upstream movements. Metabolomics can reflect changes in the physiological process and can determine different profiles depending on behaviour. Here, a non-targeted metabolomics approach was used to find possible changes in the blood metabolomic profile of S. trutta related to its movement behaviour, using a minimally invasive sampling. Results showed a differentiation in the metabolomic profiles of the trouts and different level concentrations of some metabolites (e.g. cortisol) according to the home range classification (pattern of movements: sedentary or mobile). The change in metabolomic profiles can generally occur during the upstream movement and probably reflects the changes in metabolite profile from the non-mobile season to mobile season. This study reveals the contribution of the metabolomic analyses to better understand the behaviour of organisms. [Mh] Termos MeSH primário: Truta/metabolismo [Mh] Termos MeSH secundário: Animais Comportamento Animal Ecossistema Feminino Masculino Redes e Vias Metabólicas Metaboloma Rios Espanha Natação/fisiologia [Pt] Tipo de publicação: COMPARATIVE STUDY; JOURNAL ARTICLE [Em] Mês de entrada: 1709 [Cu] Atualização por classe: 170928 [Lr] Data última revisão: 170928 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 170728 [St] Status: MEDLINE [do] DOI: 10.1371/journal.pone.0181697

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[PMID]: 28726174 [Au] Autor: Stojanovic K; Zivic M; Dulic Z; Markovic Z; Krizmanic J; Milosevic D; Miljanovic B; Jovanovic J; Vidakovic D; Zivic I [Ad] Endereço: Faculty of Biology, University of Belgrade, Studentski trg 16, Belgrade, 11000, Serbia. [Ti] Título: Comparative study of the effects of a small-scale trout farm on the macrozoobenthos, potamoplankton, and epilithic diatom communities. [So] Source: Environ Monit Assess;189(8):403, 2017 Aug. [Is] ISSN: 1573-2959 [Cp] País de publicação: Netherlands [La] Idioma: eng [Ab] Resumo: Trout farms are one of the major sources of pollution of highland streams and rivers, which are very sensitive ecosystems otherwise scarcely influenced by human activities. A trout farm with low annual production was chosen for comparative monitoring of its effects on the macrozoobenthos, epilithic diatom, and potamoplankton communities in the receiving stream. Research was conducted every 2 months during a period of 1 year (one control point and three localities downstream from the farm). The fish farm discharge induced moderate alteration of environmental factors in the receiving watercourse, viz., significant increase of the ionized and un-ionized ammonia fraction, dissolved oxygen concentration, and biological oxygen demand. Species richness and Simpson's diversity index did not change in any of the communities. Correspondent analysis of potamoplankton community composition clearly showed trout farm effects, thereby indicating the need for reevaluation of saprobic valence values for potamoplankton species. The complete lack of influence of the trout farm discharge on the epilithic diatom community is probably due to absence of significant changes of phosphorus concentration in the receiving stream. Effects of the trout farm on the macrozoobenthos community were further characterized by 14 additional indices. The percentages of Chironomidae larvae, shredders, and total collectors; ratio of shredders to collectors; and the family biotic index are suggested as candidates for future multimetric index for measuring of trout farm influence. [Mh] Termos MeSH primário: Aquicultura/métodos Diatomáceas/fisiologia Ecossistema Monitoramento Ambiental Truta/crescimento & desenvolvimento [Mh] Termos MeSH secundário: Animais Fazendas Fósforo Plâncton/fisiologia Rios Poluentes da Água/análise Zooplâncton/fisiologia [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Water Pollutants); 27YLU75U4W (Phosphorus) [Em] Mês de entrada: 1708 [Cu] Atualização por classe: 170817 [Lr] Data última revisão: 170817 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 170721 [St] Status: MEDLINE [do] DOI: 10.1007/s10661-017-6114-0

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[PMID]: 28686496 [Au] Autor: Rawn DFK; Dowd M; Scuby MJS; Pantazopoulos PP; Feeley M [Ad] Endereço: 1 Food Research Division, Bureau of Chemical Safety, Health Products and Food Branch, Health Canada, Sir Frederick Banting Research Centre, 251 Sir Frederick Banting Driveway, 2203C, Tunney's Pasture, Ottawa, Ontario, Canada K1A 0K9. [Ti] Título: Polychlorinated Biphenyls and Polychlorinated Dioxins-Furans in Lake Trout and Whitefish Composite Samples from Commercial Fisheries in Lakes Erie, Huron, and Superior. [So] Source: J Food Prot;80(8):1228-1238, 2017 Aug. [Is] ISSN: 1944-9097 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: Polychlorinated biphenyls (PCBs; sum of 36 congeners) and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs; sum of 17 2,3,7,8-substituted congeners) were measured in 93 composite samples prepared from individual lake trout (Salvelinus namaycush) and whitefish (Coregonus clupeaformis) samples collected from Lake Erie, Lake Huron, and Lake Superior. All samples had detectable concentrations of PCBs and PCDD/Fs; maximum PCB concentrations in both trout (750 ng g whole weight [ww]) and whitefish (210 ng g ww) were found in composites from fish collected from Lake Huron. The maximum toxic equivalent concentration was found in a lake trout composite sample from Lake Huron (53 pg g ww). PCB and PCDD/F congener profiles were comparable to patterns observed in fishes collected from other regions of Canada, although concentrations were above those found in other regions. A positive correlation was found between PCB concentrations determined using the historical Aroclor equivalency method and those determined using the sum of the congeners measured (r = 0.871; Spearman correlation r = 0.917) or using the six indicator PCB congeners (28, 52, 101, 138, 153, and 180; r = 0.850; Spearman correlation r = 0.935). PCBs were the dominant contributor to the overall toxic equivalent concentrations in the fish composite samples tested. These findings provide insight into PCB and PCDD/F concentrations in two commercially important fish species over a discrete time period. [Mh] Termos MeSH primário: Dioxinas/isolamento & purificação Contaminação de Alimentos/análise Bifenilos Policlorados/isolamento & purificação Salmonidae/metabolismo Truta/metabolismo [Mh] Termos MeSH secundário: Animais Canadá Pesqueiros Furanos Lagos [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (Dioxins); 0 (Furans); DFC2HB4I0K (Polychlorinated Biphenyls) [Em] Mês de entrada: 1710 [Cu] Atualização por classe: 171016 [Lr] Data última revisão: 171016 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 170708 [St] Status: MEDLINE [do] DOI: 10.4315/0362-028X.JFP-16-530

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[PMID]: 28683097 [Au] Autor: Bogdanowicz W; Rutkowski R; Gabrielyan BK; Ryspaev A; Asatryan AN; Mkrtchyan JA; Bujalska BM [Ad] Endereço: Museum and Institute of Zoology, Polish Academy of Sciences, Warszawa, Poland. [Ti] Título: Fish introductions in the former Soviet Union: The Sevan trout (Salmo ischchan) - 80 years later. [So] Source: PLoS One;12(7):e0180605, 2017. [Is] ISSN: 1932-6203 [Cp] País de publicação: United States [La] Idioma: eng [Ab] Resumo: The Soviet Union played the leading role in fish introductions in Eurasia. However, only 3% of all introductions prior to 1978 gave a commercial benefit. One of the noteworthy examples appears to be the Sevan trout (Salmo ischchan Kessler, 1877)-an endemic salmonid of Lake Sevan in Armenia. This species has been introduced to Kirghizstan, Kazakhstan, and Uzbekistan, however, only the Kirghiz population has persisted in relatively high numbers. In this paper we provide the first extensive molecular study of S. ischchan using samples from the native population from Lake Sevan and three hatcheries in Armenia, as well as from the population introduced to Lake Issyk Kul in Kirghizstan. The Kirghiz population has been isolated since the introductions took place in 1930 and 1936. Our results, based on 11 nuclear microsatellites and a 905 bp fragment of the mitochondrial control region suggest that hatcheries have maintained genetic variability by way of ongoing translocations of individuals from Lake Sevan. Simultaneously, significant Garza-Williamson M-values suggest that bottlenecks could have reduced the genetic variability of the wild populations in the past. This hypothesis is supported by historical data, indicating highly manipulated water-level regulations and poaching as two main factors that dramatically impact fish abundance in the lake. On the other hand, a similar situation has been observed in Kirghizstan, but this population likely rebounded from small population size faster than the other populations examined. The Kirghiz population is significantly genetically differentiated from the other groups and have morphological features and biological attributes not observed in the source population. Genetic data imply that the effective population size in the native population is lower than that found in the introduced population, suggesting that some active protection of the Lake Sevan population may be needed urgently. [Mh] Termos MeSH primário: Truta [Mh] Termos MeSH secundário: Animais Armênia DNA Mitocondrial/genética Cazaquistão Quirguistão Repetições de Microssatélites/genética Truta/genética Uzbequistão [Pt] Tipo de publicação: JOURNAL ARTICLE [Nm] Nome de substância: 0 (DNA, Mitochondrial) [Em] Mês de entrada: 1710 [Cu] Atualização por classe: 171006 [Lr] Data última revisão: 171006 [Sb] Subgrupo de revista: IM [Da] Data de entrada para processamento: 170707 [St] Status: MEDLINE [do] DOI: 10.1371/journal.pone.0180605

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