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61.
Identifying and mapping local bycatch hotspots of loggerhead sea turtles using a GIS-based method: implications for conservation 总被引:1,自引:0,他引:1
Giulia Cambiè Noela Sánchez-Carnero Toni Mingozzi Ramón Muiño Juan Freire 《Marine Biology》2013,160(3):653-665
Fisheries bycatch of marine megafauna is a worldwide conservation issue. In this study, we propose a method for generating reliable maps of sea turtle bycatch hotspots. Based on a well-defined area of fishing effort determined from the longline sets monitored in 2007 and 2010, we calculated the fishing area with the highest turtle bycatch density for both years. Our results show that it is important to consider all the components of fishing effort (area, number of hooks and soak time) in order to standardize the bycatch events, and thus the spatial density of the captures can be considered an index of abundance and aggregation of the species. Moreover, the high-resolution level of the analyses was useful for investigating the cumulative effect of the longline sets, which often overlap, and made it possible to correctly map the capture density and the intensity of the fishing effort at any given location. 相似文献
62.
Schneider Tobias Musa Bandowe Benjamin A. Bigalke Moritz Mestrot Adrien Hampel Henrietta Mosquera Pablo V. Fränkl Lea Wienhues Giulia Vogel Hendrik Tylmann Wojciech Grosjean Martin 《Environmental science and pollution research international》2021,28(13):16227-16243
Environmental Science and Pollution Research - Historical records of trace elements in lake sediments provide source-to-sink information about potentially toxic pollutants across space and time. We... 相似文献
63.
Current status and perspectives of accelerated carbonation processes on municipal waste combustion residues 总被引:1,自引:0,他引:1
Costa G Baciocchi R Polettini A Pomi R Hills CD Carey PJ 《Environmental monitoring and assessment》2007,135(1-3):55-75
The increasing volumes of municipal solid waste produced worldwide are encouraging the development of processes to reduce
the environmental impact of this waste stream. Combustion technology can facilitate volume reduction of up to 90%, with the
inorganic contaminants being captured in furnace bottom ash, and fly ash/APC residues. The disposal or reuse of these residues
is however governed by the potential release of constituent contaminants into the environment. Accelerated carbonation has
been shown to have a potential for improving the chemical stability and leaching behaviour of both bottom ash and fly ash/APC
residues. However, the efficacy of carbonation depends on whether the method of gas application is direct or indirect. Also
important are the mineralogy, chemistry and physical properties of the fresh ash, the carbonation reaction conditions such
as temperature, contact time, CO2 partial pressure and relative humidity. This paper reviews the main issues pertaining to the application of accelerated carbonation
to municipal waste combustion residues to elucidate the potential benefits on the stabilization of such residues and for reducing
CO2 emissions. In particular, the modification of ash properties that occur upon carbonation and the CO2 sequestration potential possible under different conditions are discussed. Although accelerated carbonation is a developing
technology, it could be introduced in new incinerator facilities as a “finishing step” for both ash treatment and reduction
of CO2 emissions. 相似文献
64.
Vigneron V Ponthieu M Barina G Audic JM Duquennoi C Mazéas L Bernet N Bouchez T 《Waste management (New York, N.Y.)》2007,27(6):778-791
Nitrified leachate recirculation has been proposed as a promising strategy for sustainable landfill management. In four test reactors, nitrate or nitrite was added (250 mg N-NO(x)(-)L(-1)) during municipal solid waste biodegradation. Nitrogen-oxides reduction reactions were monitored. Denitrification was the main nitrogen reducing reaction observed. On one hand, during the acidogenic waste degradation phase, as high amounts of volatile fatty acids (VFA) were present, nitrogen-oxides reductions were interpreted as heterotrophic denitrifications. On the other hand, denitrification reactions occurring during the late methanogenic phase were accompanied by sulphate productions and, as VFA were not detected, it was probably an autotrophic reaction. Denitrification inhibition was observed once. Ammonium concentration increased suggesting the occurrence of a dissimilatory nitrate reduction to ammonium (DNRA). Statistical treatment of analytical data revealed that only H(2)S concentration had a significant negative effect on N(2) production in our system. NO production was observed once when nitrite was injected during the acidogenic phase resulting in a total waste degradation inhibition. These results indicate that the consequences of nitrified leachate recirculation in full-scale landfills need to be carefully examined especially during the acidogenic phase or in the presence of waste containing high quantities of sulphur. 相似文献
65.
Isabella Fabietti Giulia Grassini Sara Savelli Roberta Vicario Anita Romiti Milena Viggiano Chiara Vassallo Laura Valfrè Paola Giliberti Irma Capolupo Marco Bonito Pietro Bagolan Francesco Morini Leonardo Caforio 《黑龙江环境通报》2023,43(8):1002-1007
Objective
To evaluate fetal brain development using MRI (magnetic resonance imaging) in CDH (congenital diaphragmatic hernia).Methods
52 isolated left CDH and 104 control fetuses were imaged using MRI. Brain morphometry (Biparietal diameter—BPD, brain fronto-occipital diameter—BFOD, third ventricle, posterior ventricles, transcerebellar diameter—TCD, anteroposterior and craniocaudal cerebellar vermis diameter—AP and CC) and cortical structures (bilateral cingulate fissure—CF, insular fissure—IF, insular depth - ID) were compared with controls using Mann–Whitney test.Results
Median gestational age at MRI (p = 0.95)and the median biparietal diameter (p = 0.737) were comparable. Among morphometric parameters, only the brain fronto-occipital diameter was significantly smaller in CDH (p = 0.001) and the third ventricle was significantly greater in CDH (<0.0001). Among cortical structures, the cingulate and insular fissures were significantly deeper in CDH fetuses (p < 0.0001) as the insular depth ID was smaller in CDH (p < 0.03).Conclusions
CDH fetuses have a smaller fronto-occipital diameter, reduced insular depth, deeper cingulate and insular fissure, and greater third ventricle width as compared to controls. These findings suggest that left CDH may have an impact on fetal brain development with an overall reduction in brain volume. 相似文献66.
Mol Marcos Paulo Gomes Zolnikov Tara Rava Neves Arthur Couto dos Santos Giulia Roriz Tolentino Júlia Luiza Lopes de Vasconcelos Barros Raphael Tobias Heller Leo 《Environmental science and pollution research international》2022,29(28):42466-42475
Environmental Science and Pollution Research - There are increasing worldwide concerns about the negative impacts of healthcare waste generated in hospitals, especially in low- and middle-income... 相似文献