Base de dados : MEDLINE
Pesquisa : G01.311.625.080 [Categoria DeCS]
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[PMID]:29364601
[Au] Autor:Lunina ON; Savvichev AS; Krasnova ED; Kokryatskaya NM; Veslopolova EF; Kuznetsov BB; Gorlenko VM
[Ti] Título:Succession Processes in the Anoxygenic Phototrophic Bacterial Community in Lake Kislo-Sladkoe (Kandalaksha Bay, White Sea).
[So] Source:Mikrobiologiia;85(5):531-544, 2016 Sep.
[Is] ISSN:0026-3656
[Cp] País de publicação:Russia (Federation)
[La] Idioma:eng
[Ab] Resumo:The community of anoxygenic phototrophic bacteria (APB) in the water column of Lake Kislo- Sladkoe (Kandalaksha Bay, White Sea), which has recently become separated from the sea, was investigated in March-April 2012, March-April 2013, and in September 2013. The lake, which was previously considered meromictic, was in fact mixed and was strongly affected by the sea. In winter the lake is sometimes washed off with seawater, and this together with the seasonal cycles of succession processes determines the succession of the community. The consequences of the mixing in autumn 2011 could be observed in the APB community as late as autumn 2013. Green-colored green sulfur bacteria (GSB) usually predominated in the chemocline. In winter 2013 stagnation resulted in turbidity of water under the ice, which was responsible for both predom- inance of the brown GS B forms and the changes ratio of the species of purple sulfur bacteria (PS B) in anoxic water layers. Production of anoxygenic photosynthesis in the lake was at least 240 mg C m-2 day-- in September and 0-20 mg C m-2 day- in March-April, which corresponded to 40 and 69%, respectively, of oxygenic photosynthesis. Okenone-containing purple sulfur bacteria, strain TcakPS12 were isolated in 2012 from lake water. The ells of this strain form filaments of not separated cells. Strain TcakPS12 exhibited 98% similarity with the type strains of Thiocapsapendens DSM.236 and Thiocapsa bogorovii BBS, as well as with the strains AmPS10 and TcyrPS 10, which were isolated from Lake Kislo-Sladkoe in 2010.
[Mh] Termos MeSH primário: Baías/microbiologia
Chlorobi/genética
Chromatiaceae/genética
Lagos/microbiologia
Consórcios Microbianos/fisiologia
RNA Ribossômico 16S/genética
[Mh] Termos MeSH secundário: Chlorobi/classificação
Chlorobi/isolamento & purificação
Chlorobi/ultraestrutura
Chromatiaceae/classificação
Chromatiaceae/isolamento & purificação
Chromatiaceae/ultraestrutura
Ecossistema
Fotossíntese/fisiologia
Filogenia
Pigmentos Biológicos/isolamento & purificação
Federação Russa
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Pigments, Biological); 0 (RNA, Ribosomal, 16S)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180208
[Lr] Data última revisão:
180208
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180125
[St] Status:MEDLINE


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[PMID]:29364599
[Au] Autor:Mukhanovi VS; Rylkova OA; Churiloval TY; Sakhon EG; Pimenov NV
[Ti] Título:Structure and Seasonal Trophodynamics of Picophytoplankton in Sevastopol Bay and Adjacent Waters (the Black Sea).
[So] Source:Mikrobiologiia;85(5):512-521, 2016 Sep.
[Is] ISSN:0026-3656
[Cp] País de publicação:Russia (Federation)
[La] Idioma:eng
[Ab] Resumo:Abundance and seasonal trophodynamics. (specific growth rate, daily production, and grazing mortality) of the major picophytoplankton components, Synechococcus cyanobacteria (Syn) and picoeukary- otes (Pico-E), were studied at three stations in Sevastopol Bay and adjacent coastal waters (the Black Sea) in 2014 by flow cytometry and the dilution method. Pico- E abundance was shown to increase along the nutrient and pollution gradient from the coastal waters outside the bay (annual average of 7.3 ± 5.4 x 103 cells mL⁻¹) to the eastern corner of the bay (28.7 ± 11.4 x 103 cells mL⁻¹), while no relation was found between the water pollution status.and Syn abundance (9.9 ± 8.7 x 10³ cells mL⁻¹, at all the stations, n=27). Matter flows through the communities (daily production for Syn and Pico-E 0-16.6 and 0-19.3 µg C L- day⁻¹, respec- tively; grazing mortality for Syn and PicoE 0-3.6 and 0-21.2 µg C L⁻¹ day⁻¹, respectively) were comparable to or even exceeded their biomass stocks (<0.05-6.8 and 0.9-26.5 µg C L- for Syn and PicoE, respectively), indicating high biomass turnover rates. The highest flow-to-stock ratio (up to 6 for Syn) and,a significant imbalance between daily production (P) and grazing mortality (G) were observed in the most polluted and eu- trophicated waters of the bay in spring (Pico-E: P/G <.1) and late summer (Syn: P/G > 1). Black River inflow to the bay was hypothesized to be among the mechanisms maintaining.this pronounced and long-term im- balance in the open system without any negative consequences for the picophytoplankton assemlages.
[Mh] Termos MeSH primário: Eutrofização/fisiologia
Fitoplâncton/crescimento & desenvolvimento
Synechococcus/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Carga Bacteriana
Baías
Biomassa
Mar Negro
Contagem de Células
Ecossistema
Fitoplâncton/classificação
Fitoplâncton/metabolismo
Estações do Ano
Synechococcus/metabolismo
Poluição da Água/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180208
[Lr] Data última revisão:
180208
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180125
[St] Status:MEDLINE


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[PMID]:29323841
[Au] Autor:Grebennikova TV; Syroeshkin AV; Chichaeva MA; Esper SA; Lvov DK
[Ti] Título:Influenza A virus in the Western Arctic.
[So] Source:Vopr Virusol;62(1):11-7, 2017.
[Is] ISSN:0507-4088
[Cp] País de publicação:Russia (Federation)
[La] Idioma:eng
[Ab] Resumo:Small bays of bird bazaars of the Arctic Kola Peninsula (Barents Sea) have been studied. RNA of influenza A virus was found in the surface microlayer (SM) and aerosol samples from the bays located beneath bird colonies. The nucleotide sequencing of the PCR fragments from the SM and the sea aerosol showed their identity for each bay. Virus transfer mechanism along the "surface microlayer - sea aerosol" path has been proposed. The kinetic scheme of the virus-host-environment interaction, which allows the dependence of the viral population size on the temperature to be simulated, has been developed.
[Mh] Termos MeSH primário: Vírus da Influenza A/isolamento & purificação
Influenza Aviária/epidemiologia
Modelos Estatísticos
Água do Mar/virologia
[Mh] Termos MeSH secundário: Aerossóis
Animais
Regiões Árticas/epidemiologia
Baías/virologia
Aves
Interações Hospedeiro-Patógeno
Vírus da Influenza A/genética
Influenza Aviária/transmissão
Federação Russa/epidemiologia
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Aerosols)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180208
[Lr] Data última revisão:
180208
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180112
[St] Status:MEDLINE


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[PMID]:28966027
[Au] Autor:Eriksen M; Liboiron M; Kiessling T; Charron L; Alling A; Lebreton L; Richards H; Roth B; Ory NC; Hidalgo-Ruz V; Meerhoff E; Box C; Cummins A; Thiel M
[Ad] Endereço:5 Gyres Institute, 3131 Olympic Blvd #302, Santa Monica, CA, 90404, USA. Electronic address: marcus@5gyres.org.
[Ti] Título:Microplastic sampling with the AVANI trawl compared to two neuston trawls in the Bay of Bengal and South Pacific.
[So] Source:Environ Pollut;232:430-439, 2018 Jan.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Many typical neuston trawls can only be used during relatively calm sea states and slow tow speeds. During two expeditions to the Bay of Bengal and the eastern South Pacific we investigated whether the new, high-speed AVANI trawl (All-purpose Velocity Accelerated Net Instrument) collects similar amounts and types of microplastics as two established scientific trawl designs, the manta trawl and the DiSalvo neuston net. Using a 335 µm net, the AVANI trawl can collect microplastics from the sea surface at speeds up to 8 knots as it "skis" across the surface, whereas the manta and DiSalvo neuston trawls must be towed slowly in a less turbulent sea state and often represent shorter tow lengths. Generally, the AVANI trawl collected a greater numerical abundance and weight of plastic particles in most size classes and debris types than the manta trawl and DiSalvo neuston net, likely because these trawls only skim the surface layer while the AVANI trawl, moving vertically in a random fashion, collects a "deeper" sample, capturing the few plastics that float slightly lower in the water column. However, the samples did not differ enough that results were significantly affected, suggesting that studies done with these different trawls are comparable. The advantage of the AVANI trawl over traditional research trawls is that it allows for collection on vessels underway at high speeds and during long transits, allowing for a nearly continuous sampling effort over long distances. As local surface currents make sea surface abundance widely heterogeneous, widely spaced short-tow trawls, such as the manta and DiSalvo trawls, can catch or miss hotspots or meso-scale variability of microplastic accumulations, whereas the AVANI trawl, if utilized for back-to-back tows of intermediate distances (5-10 km), can bridge variable wind conditions and debris concentrations potentially reducing variance and provide a greater resolution of spatial distribution.
[Mh] Termos MeSH primário: Monitoramento Ambiental/métodos
Plásticos/análise
Poluentes da Água/análise
[Mh] Termos MeSH secundário: Baías
Monitoramento Ambiental/instrumentação
Índia
Vento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plastics); 0 (Water Pollutants)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180123
[Lr] Data última revisão:
180123
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171003
[St] Status:MEDLINE


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[PMID]:29032907
[Au] Autor:Bean TG; Rattner BA; Lazarus RS; Day DD; Burket SR; Brooks BW; Haddad SP; Bowerman WW
[Ad] Endereço:Department of Environmental Science and Technology, University of Maryland, College Park, MD, USA.
[Ti] Título:Pharmaceuticals in water, fish and osprey nestlings in Delaware River and Bay.
[So] Source:Environ Pollut;232:533-545, 2018 Jan.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Exposure of wildlife to Active Pharmaceutical Ingredients (APIs) is likely to occur but studies of risk are limited. One exposure pathway that has received attention is trophic transfer of APIs in a water-fish-osprey food chain. Samples of water, fish plasma and osprey plasma were collected from Delaware River and Bay, and analyzed for 21 APIs. Only 2 of 21 analytes exceeded method detection limits in osprey plasma (acetaminophen and diclofenac) with plasma levels typically 2-3 orders of magnitude below human therapeutic concentrations (HTC). We built upon a screening level model used to predict osprey exposure to APIs in Chesapeake Bay and evaluated whether exposure levels could have been predicted in Delaware Bay had we just measured concentrations in water or fish. Use of surface water and BCFs did not predict API concentrations in fish well, likely due to fish movement patterns, and partitioning and bioaccumulation uncertainties associated with these ionizable chemicals. Input of highest measured API concentration in fish plasma combined with pharmacokinetic data accurately predicted that diclofenac and acetaminophen would be the APIs most likely detected in osprey plasma. For the majority of APIs modeled, levels were not predicted to exceed 1 ng/mL or method detection limits in osprey plasma. Based on the target analytes examined, there is little evidence that APIs represent a significant risk to ospreys nesting in Delaware Bay. If an API is present in fish orders of magnitude below HTC, sampling of fish-eating birds is unlikely to be necessary. However, several human pharmaceuticals accumulated in fish plasma within a recommended safety factor for HTC. It is now important to expand the scope of diet-based API exposure modeling to include alternative exposure pathways (e.g., uptake from landfills, dumps and wastewater treatment plants) and geographic locations (developing countries) where API contamination of the environment may represent greater risk.
[Mh] Termos MeSH primário: Monitoramento Ambiental
Falconiformes/metabolismo
Preparações Farmacêuticas/análise
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Animais
Baías
Delaware
Peixes/metabolismo
Cadeia Alimentar
Preparações Farmacêuticas/metabolismo
Rios/química
Poluentes Químicos da Água/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Pharmaceutical Preparations); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180119
[Lr] Data última revisão:
180119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171017
[St] Status:MEDLINE


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[PMID]:29021095
[Au] Autor:Jalil A; Li Y; Du W; Wang W; Wang J; Gao X; Khan HOS; Pan B; Acharya K
[Ad] Endereço:Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing, 210098, China; College of Environment, Hohai University, Nanjing, 210098, China.
[Ti] Título:The role of wind field induced flow velocities in destratification and hypoxia reduction at Meiling Bay of large shallow Lake Taihu, China.
[So] Source:Environ Pollut;232:591-602, 2018 Jan.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Wind induced flow velocity patterns and associated thermal destratification can drive to hypoxia reduction in large shallow lakes. The effects of wind induced hydrodynamic changes on destratification and hypoxia reduction were investigated at the Meiling bay (N 31° 22' 56.4″, E 120° 9' 38.3″) of Lake Taihu, China. Vertical flow velocity profile analysis showed surface flow velocities consistency with the wind field and lower flow velocity profiles were also consistent (but with delay response time) when the wind speed was higher than 6.2 m/s. Wind field and temperature found the control parameters for hypoxia reduction and for water quality conditions at the surface and bottom profiles of lake. The critical temperature for hypoxia reduction at the surface and the bottom profile was ≤24.1C° (below which hypoxic conditions were found reduced). Strong prevailing wind field (onshore wind directions ESE, SE, SSE and E, wind speed ranges of 2.4-9.1 m/s) reduced the temperature (22C° to 24.1C°) caused reduction of hypoxia at the near surface with a rise in water levels whereas, low to medium prevailing wind field did not supported destratification which increased temperature resulting in increased hypoxia. Non-prevailing wind directions (offshore) were not found supportive for the reduction of hypoxia in study area due to less variable wind field. Daytime wind field found more variable (as compared to night time) which increased the thermal destratification during daytime and found supportive for destratification and hypoxia reduction. The second order exponential correlation found between surface temperature and Chlorophyll-a (R : 0.2858, Adjusted R-square: 0.2144 RMSE: 4.395), Dissolved Oxygen (R : 0.596, Adjusted R-square: 0.5942, RMSE: 0.3042) concentrations. The findings of the present study reveal the driving mechanism of wind induced thermal destratification and hypoxic conditions, which may further help to evaluate the wind role in eutrophication process and algal blooms formation in shallow water environments. OUTCOME: Wind field is the key control factor for thermal destratification and hypoxia reduction. 24.1C° is the critical/threshold temperature for hypoxia, Chlorophyll-a and NH -N concentrations of the shallow freshwater lake.
[Mh] Termos MeSH primário: Monitoramento Ambiental
Eutrofização
Lagos/química
Vento
[Mh] Termos MeSH secundário: Baías/química
China
Clorofila/análise
Hidrodinâmica
Temperatura Ambiente
Qualidade da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
1406-65-1 (Chlorophyll); YF5Q9EJC8Y (chlorophyll a)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180119
[Lr] Data última revisão:
180119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171013
[St] Status:MEDLINE


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[PMID]:29261749
[Au] Autor:Featherstone AM; Butler PG; Peharda M; Chauvaud L; Thébault J
[Ad] Endereço:Universite de Bretagne Occidentale, Institut Universitaire Européen de la Mer, Laboratoire des sciences de l'environnement marin (LEMAR UMR 6539 CNRS/UBO/IRD/Ifremer), Plouzané, France.
[Ti] Título:Influence of riverine input on the growth of Glycymeris glycymeris in the Bay of Brest, North-West France.
[So] Source:PLoS One;12(12):e0189782, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A crossdated, replicated, chronology of 114 years (1901-2014) was developed from internal growth increments in the shells of Glycymeris glycymeris samples collected monthly from the Bay of Brest, France. Bivalve sampling was undertaken between 2014 and 2015 using a dredge. In total 401 live specimens and 243 articulated paired valves from dead specimens were collected, of which 38 individuals were used to build the chronology. Chronology strength, assessed as the Expressed Population Signal, was above 0.7 throughout, falling below the generally accepted threshold of 0.85 before 1975 because of reduced sample depth. Significant positive correlations were identified between the shell growth and the annual averages of rainfall (1975-2008; r = 0.34) and inflow from the river Elorn (1989-2009; r = 0.60). A significant negative correlation was identified between shell growth and the annual average salinity (1998-2014; r = -0.62). Analysis of the monthly averages indicates that these correlations are associated with the winter months (November-February) preceding the G. glycymeris growth season suggesting that winter conditions predispose the benthic environment for later shell growth. Concentration of suspended particulate matter within the river in February is also positively correlated with shell growth, leading to the conclusion that food availability is also important to the growth of G. glycymeris in the Bay of Brest. With the addition of principle components analysis, we were able to determine that inflow from the River Elorn, nitrite levels and salinity were the fundamental drivers of G. glycymeris growth and that these environmental parameters were all linked.
[Mh] Termos MeSH primário: Baías
Bivalves/crescimento & desenvolvimento
Rios
[Mh] Termos MeSH secundário: Animais
França
Geografia
Análise de Componente Principal
Reprodutibilidade dos Testes
[Pt] Tipo de publicação:JOURNAL ARTICLE
[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:171221
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0189782


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[PMID]:28457558
[Au] Autor:de Souza JRB; do Rosário Zucchi M; Costa AB; de Azevedo AEG; Spano S
[Ad] Endereço:Instituto de Física, Universidade Federal da Bahia, 40210-340 Salvador, Bahia, Brazil.
[Ti] Título:Geochemical markers of sedimentary organic matter in Todos os Santos Bay, Bahia - Brazil. Indicators of sources and preservation.
[So] Source:Mar Pollut Bull;119(2):239-246, 2017 Jun 30.
[Is] ISSN:1879-3363
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Natural stable isotopes, such as carbon (C) and nitrogen (N), are modern tools to assess geochemical processes. C and N in organic matter can carry fingerprints of their hydrologic flows and sedimentary processes, including any anthropogenic modification on the natural system. This study focuses on the determination of aliphatic and polycyclic aromatic hydrocarbons and isotopic ratio in the sediment of Todos os Santos Bay (TSB). The isotopic results of the total organic matter indicate varied contribution marine and terrigenous. Typical rates of PAHs mainly indicate a pyrogenic source and mixture between pyrogenic and petrogenic sources. Typical ratios for the n-alkanes indicate the presence of petroleum hydrocarbons. The isotopic composition of n-alkanes suggests a mixture of sources, with the possible contribution of petrogenic.
[Mh] Termos MeSH primário: Hidrocarbonetos Aromáticos Policíclicos/análise
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Baías
Brasil
Monitoramento Ambiental
Sedimentos Geológicos
Hidrocarbonetos Aromáticos Policíclicos/química
Poluentes Químicos da Água/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Polycyclic Aromatic Hydrocarbons); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171220
[Lr] Data última revisão:
171220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170502
[St] Status:MEDLINE


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[PMID]:28454763
[Au] Autor:Nascimento RA; de Almeida M; Escobar NCF; Ferreira SLC; Mortatti J; Queiroz AFS
[Ad] Endereço:Department of Oceanography, Institute of Geosciences, Federal University of Bahia (UFBA), Campus Ondina, 40170-290 Salvador, BA, Brazil. Electronic address: rodrigo.an@outlook.com.
[Ti] Título:Sources and distribution of polycyclic aromatic hydrocarbons (PAHs) and organic matter in surface sediments of an estuary under petroleum activity influence, Todos os Santos Bay, Brazil.
[So] Source:Mar Pollut Bull;119(2):223-230, 2017 Jun 30.
[Is] ISSN:1879-3363
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The present study evaluated the origin and distribution of polycyclic aromatic hydrocarbons (PAHs) and the organic matter (OM) in the surface sediment of the São Paulo River estuary, Todos os Santos Bay (TSB), Brazil. The samples were collected in the rainy (CP1) and the dry (CP2) seasons. We analyzed the 16 PAHs from the United States Environmental Protection Agency (US EPA) priority pollutant list, total organic carbon (TOC), total nitrogen (N), and stable carbon isotope (δ C). The total concentration of PAHs ranged from 11.45±1.28 to 1825.35±107.96ngg , while TOC ranged from 3.8 to 27.7gkg . CP1 showed the highest concentrations for all parameters. The δ C ratio indicated terrigenous OM (-23.81 to -26.63‰). The TOC/N ratio (C/N) indicated transitional OM (12.32 to 24.39), in addition to the continental origin. The diagnostic ratios of PAHs origin revealed only pyrolytic source, although close to areas with a history of petroleum contamination.
[Mh] Termos MeSH primário: Sedimentos Geológicos/química
Hidrocarbonetos Aromáticos Policíclicos/análise
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Baías
Brasil
Monitoramento Ambiental
Estuários
Petróleo
Poluição por Petróleo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Petroleum); 0 (Polycyclic Aromatic Hydrocarbons); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171220
[Lr] Data última revisão:
171220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170430
[St] Status:MEDLINE


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[PMID]:29176818
[Au] Autor:Basilio A; Searcy S; Thompson AR
[Ad] Endereço:Environmental and Ocean Sciences, University of San Diego, San Diego, California, United States of America.
[Ti] Título:Effects of the Blob on settlement of spotted sand bass, Paralabrax maculatofasciatus, to Mission Bay, San Diego, CA.
[So] Source:PLoS One;12(11):e0188449, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The West Coast of the United States experienced variable and sometimes highly unusual oceanographic conditions between 2012 and 2015. In particular, a warm mass of surface water known as the Pacific Warm Anomaly (popularly as "The Blob") impinged on southern California in 2014, and warm-water conditions remained during the 2015 El Niño. We examine how this oceanographic variability affected delivery and individual characteristics of larval spotted sand bass (Paralabrax maculatofasciatus) to an estuarine nursery habitat in southern California. To quantify P. maculatofasciatus settlement patterns, three larval collectors were installed near the mouth of Mission Bay, San Diego CA, and retrieved weekly from June-October of 2012-2015. During 'Blob' conditions in 2014 and 2015, lower settlement rates of spotted sand bass were associated with higher sea surface temperature and lower wind speed, chlorophyll a (chl a) and upwelling. Overall, the number of settlers per day peaked at intermediate chl a values across weeks. Individual characteristics of larvae that settled in 2014-2015 were consistent with a poor feeding environment. Although settlers were longer in length in 2014-15, fish in these years had slower larval otolith growth, a longer larval duration, and a trend towards lower condition, traits that are often associated with lower survival and recruitment. This study suggests that future settlement and recruitment of P. maculatofasciatus and other fishes with similar life histories may be adversely affected in southern California if ocean temperatures continue to rise in the face of climate change.
[Mh] Termos MeSH primário: Bass/fisiologia
Baías
Temperatura Ambiente
Água
[Mh] Termos MeSH secundário: Animais
California
Clorofila/análise
Geografia
Larva/fisiologia
Modelos Teóricos
Oceanografia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
059QF0KO0R (Water); 1406-65-1 (Chlorophyll); YF5Q9EJC8Y (chlorophyll a)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171219
[Lr] Data última revisão:
171219
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171128
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188449



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