Vitellogenin induction as a biomarker of exposure to estrogenic compounds in aquatic environments   总被引：14，自引：0，他引：14  

Marin MG  Matozzo V 《Marine pollution bulletin》2004,48(9-10):835-839

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Interannual variability of the Kuroshio intrusion in the South China Sea   总被引：13，自引：1，他引：13  

Michael J. Caruso  Glen G. Gawarkiewicz  Robert C. Beardsley 《Journal of Oceanography》2006,62(4):559-575

The interannual variability of intrusions of the Kuroshio into the South China Sea (SCS) is investigated using satellite remote sensing data supported by in-situ measurements. The mesoscale circulation of the SCS is predominantly wind-forced by the northeast winter and southwest summer monsoons. Although the region has been studied extensively, considerable uncertainty remains about the annual and interannual mesoscale nature of the circulation. The frequency and characteristics of Kuroshio intrusions and their effect on circulation patterns in the northeast SCS are also not well understood. Satellite observations of Sea Surface Temperature (SST) from the Tropical Rainfall Measuring Mission (TRMM) and the Advanced Very High Resolution Radiometer (AVHRR) and Sea Surface Height Anomalies (SSHA) from TOPEX/ Poseidon for the period 1997–2005 are used here to analyze the annual and interannual variability in Kuroshio intrusions and their effects on the region. Analysis of SST and SSHA shows the formation and characteristics of intrusions vary considerably each year. Typically, the intrusion occurs in the central region of Luzon Strait and results in an anticyclonic circulation in the northeastern SCS. However, in some years, the intrusion is located in the northern portion of Luzon Strait and a cyclonic intrusion results. Wind stress and wind stress curl derived from the National Aeronautics and Space Administration (NASA) QuikSCAT satellite scatterometer are used to evaluate the relationship between wind stress or wind stress curl and the presence of winter Kuroshio intrusions into the SCS.  相似文献   

Assessment of contamination by polychlorinated biphenyls and aliphatic and aromatic hydrocarbons in sediments of the Santos and São Vicente Estuary System, São Paulo, Brazil   总被引：1，自引：0，他引：1  

Bícego MC  Taniguchi S  Yogui GT  Montone RC  Moreira da Silva DA  Lourenço RA  de Castro Martins C  Sasaki ST  Pellizari VH  Weber RR 《Marine pollution bulletin》2006,52(12):1804-1816

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Modelling and interpreting the dependence of clustering on the spectral energy distributions of galaxies     

Lan Wang  Cheng Li  Guinevere Kauffmann  Gabriella De Lucia 《Monthly notices of the Royal Astronomical Society》2007,377(4):1419-1430

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Estimation of lahar and lahar-runout flow hydrograph on natural beds     

P. Caruso  M. T. Pareschi 《Environmental Geology》1993,22(2):141-152

A numerical model is used to simulate channelized lahars, flowing with a near-constant sediment concentration and volume. Water and debris are usually mobilized in short times and the peak discharge of lahars may reach many thousands of cubic meters per second in a few minutes. A relation for the energy dissipation term must be provided in the model, which in turn depends on debris flow rheology and shape and status of channel bed. A discussion of the form of this term is performed through the simulation of some historical (among the well-documented) lahars and lahar-runout flows with concentrations ranging in a wide spectrum up to 70 percent by volume and irregularly shaped sand and coarser particles dispersed in a fluid matrix of water and fine material. As concentration increases and turbulence decreases, the dissipative term, which, in the first case, is proportional to the square average flow velocity (Manning or Chezy formulation) is well described by a linear dependence on flow velocity, as expected in the laminar case. The numerical reproduction of the examined historical cases suggests that the model can be used for hazard assessment, if some hypotheses are made about lahar hydrograph at the source, its volume, and the shape of the dissipative term.  相似文献   

Chemical zoning in the large phenocrysts of the Godóvár tuff,Börzsöny Mts., Hungary     

Antal Embey-Isztin  Gabriella Noske-Fazekas 《Contributions to Mineralogy and Petrology》1981,77(4):325-331

Large phenocrysts of clinopyroxene, amphibole in the Godóvár tuff show normal zoning with mg-values decreasing from the center towards the border zones. Clinopyroxenes exhibit a primitive Cr-diopsidic (Mg₄₈Fe₇Ca₄₅) core which with a sudden change in the composition is surrounded by an augitic rim (Mg₄₄Fe₁₄Ca₄₂). No such abrupt change can be observed in amphibole crystals which are typical pargasites and only the outermost zones may pass into the magnesio-hastingsite field. It is argued that the Cr-diopside may have separated from a basaltic liquid at depths greater than about 18 km, while the other pyroxene zones with the pargasite and plagioclase crystals accumulated in a storage chamber at a depth of about 12–15 km.  相似文献   

Archaean and Lower Proterozoic units in Central Brazil     

José Caruso M. Danni  Reinhardt A. Fuck  Othon H. Leonardos 《International Journal of Earth Sciences》1982,71(1):291-317

The following main units have been recognized as Archaean basement rocks in central Brazil: a) High-grade granite-gneiss terrain composed predominantly by granodioritic and tonalitic gneisses; these rocks are cut by amphibolite dykes and present several nucleii locally surrounded by an array of Archaean greenstone belts, b) Greenstone belts presenting basal komatiitic ultramafic-mafic lavas with abundant spinifex textures, followed by basalts and chemical sediments such as cherts, limestones and graphitic pelites, that are often interbedded with acid and intermediate volcanics; metamorphism is within greenschist facies. Granulite mobile belt, including the granulitized mafic-ultramafic complexes of Barro Alto, Niquelândia and Brava. The Lower Proterozoic is represented by: a) metasedimentary sequences overlying the granite-greenstone terrains, with several tin bearing granite intrusions. b) Gabbro-anorthosite layered plutons and their associated mafic volcanics which are followed by acid and intermediate volcanics and ocean floor sediments. c) Mafic-ultramafic layered intrusions in the granulite terrain.

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Zusammenfassung Im zentralen Brasilien wurden folgende Haupteinheiten als Archaischer Sockel erkannt: a) hochmetamorphes Granit-Gneis-Gebiet mit vorwiegend granodioritischen und tonalitischen Gneisen; diese Gesteine werden von amphibolitischen Gängen durchschlagen. Sie bilden einzelne Kerne, die von Zonen Archaischer Grünsteingürtel umgeben werden. b) Grünsteingürtel, die basale komatiitische ultramafitische bis mafischen Laven representieren mit häufig auftretenden Spinifex-Gefügen. Diesen folgen Basalte und chemische Sedimente wie Kieselschiefer, Kalke und graphitische Pelite, in die häufig saure und intermediäre Vulkanite eingeschaltet sind. Die Metamorphose liegt in der Grünschiefer-Fazies. c) Mobiler Granulit-Gürtel, der die granulitisierten mafisch-ultramafischen Komplexe von Barro Alto, Niquelândia und Cana Brava einschließt.Das untere Proterozoikum wird durch folgende Einheiten vertreten: a) Metasedimentfolgen, die die Granit-Grünstein-Serien überlagern und die einige zinnführende GranitIntrusionen aufweisen. b) Lagige Gabbro-Anorthosit-Plutone mit dazugehörenden mafischen Vulkaniten, die von sauren und intermediären Vulkaniten und ozeanischen Sedimenten gefolgt werden. c) Mafisch-ultramafische Intrusionen innerhalb des Granulit-Gebietes.

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Resumo As seguintes unidades geológicas principais foram reconhecidas no embasamento da região central do Brasil: a) Terrenos granito-gnáissicos constituídos dominantemente por gnaisses de composição granodiorítica e tonalítica cortados por diques de anfibolito e mostrando vários núcleos graníticos localmente envolvidos por seqüências vulcano-sedimentares do tipo greenstone belt. b) Cinturões arqueanos de rochas verdes apresentando na base lavas komatiíticas com abundantes texturas tipo spinifex, seguidas de basaltos almofadados e de sedimentos químicos tais como chert, calcário e pelitos grafitosos, frequentemente intercalados com vulcânicas intermediárias e ácidas; o metamorfismo é de facies xisto verde. c) Cinturão móvel granulítico incluindo os complexos granulitizados de Barro Alto, Niquelândia e Cana Brava. Proterozóico Inferior é representado por: a) Seqüências sedimentares sobrepostas aos terrenos granito-greenstone, localmente intrudidas por granitos estaniferos; b) Plutões gabro-anortosíticos acamadados; c) Intrusões máfico-ultramáficas alojadas nos terrenos granulíticos.-- : ) - ; , , ) , . , , , , , . ; ) , - Barro Alto, Niguelandia Brava. : ) , - , , ; ) -- , ; ) - .

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Mugil curema as a PAH bioavailability monitor for Atlantic west sub-tropical estuaries     

Ana Cecília Rizzatti de Albergaria-Barbosa  Vinicius Faria Patire  Satie Taniguchi  Wellington Silva Fernandez  June Ferraz Dias  Márcia Caruso Bícego 《Marine pollution bulletin》2017,114(1):609-614

This work aimed to evaluate the use of Mugil curema as a biomonitor for polycyclic aromatic hydrocarbon (PAH) bioavailability. Fish biliary metabolites from low-contaminated (Cananéia) and contaminated (Santos) Brazilian estuaries were analysed using a high-performance liquid chromatography apparatus coupled to fluorescence detectors connected in a series. In the Cananéia and Santos estuaries, total metabolite levels ranged from 0.85 to 34.4 μg g^? 1 of bile and from 4.06 to 528 μg g^? 1 of bile, respectively. Metabolite levels were not influenced by feeding status or sexual hormones (p < 0.05), thus suggesting that M. curema is a good biomonitor for PAH bioavailability. In estuarine regions, it is possible to sample both the male and female genders of this species in any reproductive period.  相似文献   

Is anthropogenic land subsidence a possible driver of riverine flood-hazard dynamics? A case study in Ravenna,Italy     

Francesca Carisi  Alessio Domeneghetti  Maria Gabriella Gaeta  Attilio Castellarin 《水文科学杂志》2017,62(15):2440-2455

We investigate possible changes in flood hazard over a 77-km² area around the city of Ravenna. The subsidence rate in the area, naturally a few mm year^?1, increased dramatically after World War II because of groundwater and natural gas extraction, exceeding 110?mm year^?1 and resulting in cumulative drops larger than 1.5?m. The Montone–Ronco river system flows in the southern portion of the area, which is protected against frequent flooding by levees. We performed two-dimensional simulations of inundation events associated with levee breaching by considering four different terrain configurations: current topography and a reconstruction of ground elevations before anthropogenic land subsidence, both neglecting and representing the main linear infrastructures (e.g. roads, artificial channels). Results show that flood-hazard changes due to anthropogenic land subsidence (e.g. significant changes in computed water depth and velocity) are observed over less than 10% of the study area and are definitely less important than those resulting from construction of the linear infrastructures.  相似文献   

Modelling climate change impacts on hydropower lake inflows and braided rivers in a mountain basin     

Brian Caruso  Simon Newton  Regan King  Christian Zammit 《水文科学杂志》2017,62(6):928-946

This study models climate change impacts on the natural flow regime of braided rivers and inflows to hydropower lakes in a New Zealand mountain basin. Flow metrics include the magnitude, frequency, timing and duration of unaltered flows. The TopNet hydrological model was used to simulate impacts in the Upper Waitaki Basin of the South Island for the 1990s, 2040s and 2090s. An average emissions scenario and results from 12 global circulation models were used as input. Indicators of hydrological alteration and Kruskal-Wallis tests were used to evaluate flow differences. Modelled total inflows increase over time for all lakes, with most increases in winter/early spring and small decreases in summer/autumn. High flows generally increase, while low flows decrease. Although these changes may benefit hydropower and floodplain ecology, they may increase flood risk in winter and spring and drought risk in summer and autumn, causing additional challenges managing hydropower operations.