scholarly journals Assessment of the impact of copper mining and related industrial activities on aquatic macroinvertebrate communities of the Pek River (Serbia)

2021 ◽  
pp. 23-23
Author(s):  
Jelena Canak-Atlagic ◽  
Stefan Andjus ◽  
Jelena Djuknic ◽  
Ana Milivojevic ◽  
Katarina Kulic ◽  
...  
Keyword(s):  
Diversity Index ◽  
Ecological Status ◽  
Mining Industry ◽  
Copper Mining ◽  
Strong Impact ◽  
Macroinvertebrate Communities ◽  
Gradual Improvement ◽  
Mining Sites ◽  
River Stretch ◽  
The Impact

The upper stretch of the Pek River is located in proximity to one of the largest mining sites in Serbia. To estimate the influence of copper mining on river biota, the quantitative and qualitative macroinvertebrate community structure was analyzed, and the ecological status of the river was assessed using standard biological indices. Data was gathered at 6 sites along the river. A total of 75 macroinvertebrate taxa were recorded. The reference site had the highest number of recorded taxa (48) and a high biodiversity (diversity index H=2.3). In contrast, the lowest number of taxa (8), a low diversity index value (H=1.15), and a very poor overall ecological status were recorded at site 2, which is heavily influenced by mining discharge. The Ephemeroptera, Plecoptera and Trichoptera group (EPT) constituted 46.30% of the community at site 1 but was completely absent at site 2 where Diptera (70%) and Oligochaeta (20%) were dominant, reflecting a strong impact of the mining industry on the upper river stretch. A gradual improvement of water quality downstream of the pollution sources indicates that this medium-sized river has the capacity to overcome intensive pollution and to revitalize itself along its course.

scholarly journals Assessing Peruvian University Students’ Preferences for Labor Conditions in Mining Site

2021 ◽  
Vol 13 (17) ◽  
pp. 9648
Author(s):  
Shuto Mikami ◽  
Yutaka Ito ◽  
Hernan Gabriel Oyola Gonzales
Keyword(s):  
Mining Industry ◽  
Individual Characteristics ◽  
Working Environment ◽  
Strong Impact ◽  
Skilled Workers ◽  
Mining Site ◽  
Mining Sites ◽  
Labor Conditions ◽  
Males And Females ◽  
Stable Employment

The mining industry is one of the biggest industries and has a strong impact in Peru. Despite the mining industry’s importance, it faces labor shortages and environmental risks. For these situations, mining students are important sources of workers not only as labor forces but also as skilled workers who can contribute to solving the environmental issues of mining companies. Thus, the purpose of this paper is to assess Peruvian university mining students’ preferences for labor conditions in mining sites using a discrete choice experiment in order to promote efficient improvements in labor conditions in mining sites that contribute to stable employment and address environmental concerns. The number of respondents was 222 in two Peruvian universities, including males and females aged 16–35 years. The analysis’s findings indicate that labor conditions at mining sites can be optimized by adjusting them to specific individual characteristics of potential mining workers, resulting in a more efficient working environment for companies and workers.

scholarly journals Ichthyofauna as bioindicator of environmental quality in an industrial district in the amazon estuary, Brazil

2014 ◽  
Vol 74 (2) ◽  
pp. 315-324 ◽  
Author(s):  
AP. Viana ◽  
F. Lucena Frédou
Keyword(s):  
Diversity Index ◽  
Ecological Status ◽  
Industrial Area ◽  
Main Channel ◽  
Ecological Indices ◽  
Industrial District ◽  
Impact Zone ◽  
Amazon Estuary ◽  
The Impact ◽  
Different Parts

The objective of the present study was to describe the ecological status of ichthyofauna in an industrial district (Pará river, Amazon estuary), through the use of different environmental descriptors. To evaluate the impacts of the industrial area and cargo terminal, three areas were considered: Zone 1 (maximum impact), Zone 2 (median impact) and Zone 3 (low impact). A total of 77 species were captured. Differences in the composition of the ichthyofauna were recorded between Zones and environments (main channel and tidal channel). The ecological indices revealed clear evidence of the impact of the industrial hub and cargo terminal on the fish communities. In Zone 1, there was a reduction in the number of feeding groups (in the main channel) and larger fish and the Shannon diversity index and Margalef's richness were also significantly lower. The multivariate analysis separated the different Zones clearly into three groups, indicating marked differences in the levels of contamination in the different parts of the study area.

scholarly journals Prediction of Phytoplankton Biomass in Small Rivers of Central Spain by Data Mining Method of Partial Least-Squares Regression

Proceedings ◽  
2019 ◽  
Vol 48 (1) ◽  
pp. 16 ◽  
Author(s):  
Juan Carlos García-Prieto ◽  
Francisco Javier Burguillo Muñoz ◽  
Manuel G. Roig ◽  
José Bernardo Proal-Najera
Keyword(s):  
Climate Change ◽  
Least Squares ◽  
Partial Least Squares ◽  
Ecological Status ◽  
Phytoplankton Growth ◽  
Small Rivers ◽  
Strong Impact ◽  
Least Squares Regression ◽  
Phytoplankton Communities ◽  
The Impact

The Water Framework Directive (WFD, EC, 2000) states that the “good” ecological status of natural water bodies must be based on their chemical, hydromorphological and biological features, especially under drastic conditions of floods or droughts. Phytoplankton is considered a good environmental bioindicator (WFD) and climate change has a strong impact on phytoplankton communities and water quality. The development of robust techniques to predict and control phytoplankton growth is still in progress. The aim of this study is to analyze the impact of the different stressors associated with the change in phytoplanktonic communities in small rivers in the center of the Iberian Peninsula (Southwestern Europe). A statistical study on the identification of the essential limiting variables in the phytoplankton growth and its seasonal variation by climate change was carried out. In this study, a new method based on the partial least-squares (PLS) regression technique has been used to predict the concentration of phytoplankton and cyanophytes from 22 variables usually monitored in rivers. The predictive models have shown a good agreement between training and test data sets in rivers and seasons (dry and wet). The phytoplankton in dry periods showed greatest similarities, these dry periods being the most important factor in the phytoplankton proliferation

When Do Psychopathic Traits Affect Cooperative Behavior?: An Iterated Prisoner's Dilemma Experimental Study

2020 ◽  
Author(s):  
M Testori ◽  
M Kempf ◽  
RB Hoyle ◽  
Hedwig Eisenbarth
Keyword(s):  
Prisoner's Dilemma ◽  
Cooperative Behavior ◽  
Prisoner’S Dilemma ◽  
Selection Procedure ◽  
Psychopathic Traits ◽  
Strong Impact ◽  
Iterated Prisoner's Dilemma ◽  
Human Decision ◽  
The Impact ◽  
Iterated Prisoner’S Dilemma

© 2019 Hogrefe Publishing. Personality traits have been long recognized to have a strong impact on human decision-making. In this study, a sample of 314 participants took part in an online game to investigate the impact of psychopathic traits on cooperative behavior in an iterated Prisoner's dilemma game. We found that disinhibition decreased the maintenance of cooperation in successive plays, but had no effect on moving toward cooperation after a previous defection or on the overall level of cooperation over rounds. Furthermore, our results underline the crucial importance of a good model selection procedure, showing how a poor choice of statistical model can provide misleading results.

The Impact of Economic Crisis on Tourism Industry: A Bangladesh Perspective

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Md. Ziaul Haque
Keyword(s):  
Economic Crisis ◽  
Tourism Industry ◽  
Political Crisis ◽  
Strong Impact ◽  
Negative Consequences ◽  
Policy Makers ◽  
Tourism Product ◽  
International Tourist ◽  
Sustained Recovery ◽  
The Impact

The tourism sector is experiencing numerous challenges as a result of the global economic crisis. After a significant contraction in 2009, tourism rebounded strongly  in  2010  and  in  2011  the  international  tourist  arrivals  and  receipts  are projected to increase substantially. The Tourism industry is expected to show a sustained recovery in 2012. The crisis has particularly strong impact and slightly negative consequences in Bangladesh. The country is undergoing a political crisis, as well, and it seems that the forthcoming elections may be the only solution for the restoration of stability and social peace.  In addition, tourism can be the driving force behind Bangladesh economic recovery. However, for its achievement the country’s policy makers should take several measures towards restructuring and improving the sector. These measures include: enhancement of alternative forms of tourism; environmental protection; creation of quality infrastructure; and boost of competitiveness through a tourism product that offers value for money

The Impact Of Economic Crisis On Tourism Industry: A Bangladesh Perspective

2015 ◽  
Vol 1 (1) ◽  
pp. 15
Author(s):  
Md. Ziaul Haque
Keyword(s):  
Economic Crisis ◽  
Tourism Industry ◽  
Political Crisis ◽  
Strong Impact ◽  
Negative Consequences ◽  
Policy Makers ◽  
Tourism Product ◽  
International Tourist ◽  
Sustained Recovery ◽  
The Impact

The tourism sector is experiencing numerous challenges as a result of the global economic crisis. After a significant contraction in 2009, tourism rebounded strongly  in  2010  and  in  2011  the  international  tourist  arrivals  and  receipts  are projected to increase substantially. The Tourism industry is expected to show a sustained recovery in 2012. The crisis has particularly strong impact and slightly negative consequences in Bangladesh. The country is undergoing a political crisis, as well, and it seems that the forthcoming elections may be the only solution for the restoration of stability and social peace.  In addition, tourism can be the driving force behind Bangladesh economic recovery. However, for its achievement the country’s policy makers should take several measures towards restructuring and improving the sector. These measures include: enhancement of alternative forms of tourism; environmental protection; creation of quality infrastructure; and boost of competitiveness through a tourism product that offers value for money

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