scholarly journals INFLUENCE OF SUSPENDED FLUVIAL SEDIMENTS ON THE RIVER ICHTHYOCENE

2019 ◽  
Vol 199 ◽  
pp. 179-192
Author(s):  
S. R. Chalov ◽  
E. V. Esin ◽  
V. N. Leman

Published data on direct and indirect impacts of suspended matter on freshwater fish are overviewed, both for short-term (hours) experiments and long-term (weeks and months) monitoring in natural conditions. Lethal or paralethal concentrations of the suspended matter are determined for 18 species from 8 families. Accumulation effect of the permanent concentration is observed for charr Salvelinus malma in the laboratory experiment. The most common fish families of the freshwater ichthyofauna in Russia are ranked by threshold of their sensitivity to suspended matter in the order: sturgeon and catfish (1000 mg/L) — carp (250 mg/L) — perch (100 mg/L) — salmon (10 mg/L, with paralethal concentration 25–35 mg/L). Fish mortality is estimated in dependence on the suspended matter concentration and time of exposure, by species. Environmental consequences of the suspended sediments impact are assessed for fish communities of the rivers of Kamchatka, the Lena River, and the Selenga River.

Author(s):  
Shivani Saini ◽  
Jagwinder Singh

A growing body of academic and practitioner literature has highlighted the role of consumer experience management in maintaining long-term relationships with consumers. However, related studies are still divergent and there is little empirical evidence available to support the positive effect of consumer experience management on attitudinal and behavioural loyalty. The present study aims to fill this gap by investigating the direct and indirect impacts of consumer experience efforts on attitudinal and behavioural loyalty. To conduct an empirical study, data was collected from consumers of three service firms: health, retail, and wellness. By means of AMOS17.0, using CFA and SEM techniques, the measurement and comparison of structural models was carried out to test the invariance across three service groups. This article has significant implications for academicians well as marketers of service firms.


2015 ◽  
Vol 15 (3) ◽  
pp. 48-58 ◽  
Author(s):  
Johan Fahri ◽  
Christopher Biesenthal ◽  
Julien Pollack ◽  
Shankar Sankaran

Project success has always been an important topic in the project management literature. One of the main discussions is concerned with how a project’s success is evaluated and what factors lead to achieving this success. Traditionally project success has been measured at the point where the project outputs are handed over, after the close out phase. Recently, questions have been raised in the literature as to whether we should be evaluating project success beyond the close out phase, to better account for organizational and societal outcomes.  However, not much has been published about how the long term impacts and outcomes are measured. This is of particular concern in megaprojects as they often attract a high level of public attention and political interest, and have both direct and indirect impacts on the community, environment, and national budgets. In this paper the authors review success factors and criteria that are applicable to projects in general and megaprojects in particular. They identify the significance of evaluating outcomes and impact and propose an ex-post project evaluation (EPPE) framework for megaprojects.


2021 ◽  
Author(s):  
Peter Maurer

Armed conflicts have direct and indirect impacts on the natural environment, and climate risks now magnify this harm for dependent communities. Too often, the natural environment is directly attacked or suffers incidental damage as a result of the use of certain methods or means of warfare. It is also at risk from damage and destruction to the built environment, across urban and rural areas. To reduce this harm, parties to armed conflict can integrate legal protections for the environment into their armed forces’ doctrine to reduce damage as they fight. Humanitarians in turn must commit sufficient resources and expertise to respond to the needs of those coping with the environmental consequences of conflict, and limit their own climate and environmental footprint. In order to address this challenge, in November 2020 the ICRC released the Guidelines on the Protection of the Natural Environment in Armed Conflict which aim to contribute in a practical way to promoting respect for and protection of this precious asset during armed conflicts.


1972 ◽  
Vol 1 (13) ◽  
pp. 54
Author(s):  
Harald Gohren ◽  
Hans Laucht

With financial support by the German Research Association (Deutsche Forschungsgemeinschaft) an instrument for automatic long-term measurement of suspended matter has been developed by the authors. It works on a settling method. A sample of 20 1 of water is pumped into a conical settling bottle every hour. The suspended sediments settling in a measuring tube at the bottom of the bottle are recorded by a camera. The device called "Silt Gauge" is intended for long-term measurements in shallow coastal water.


Erdkunde ◽  
2021 ◽  
Vol 75 (4) ◽  
Author(s):  
Ulf Büntgen ◽  
Tomáš Čejka ◽  
Mirek Trnka ◽  
Paul W. Thomas

Global climate change is the main threat for the emerging truffle sector, which already extends across seven key regions in the Americas, Europe, South Africa and Australasia. At the same time, the potential effects of financial crises and global pandemics have not yet been considered in most risk assessments. Here we describe the direct and indirect impacts of the actual coronavirus pandemic on the rising truffle sector. We discuss how COVID-19 affects small family businesses and international enterprises, and if the current harvest decline will have ecological long-term benefits. Furthermore, we question extant cultivation practices, irrigation techniques and trade systems to prepare for a more equitable and sustainable future of the global truffle industry. Despite various foci on one of the most expensive gourmet foods and its associated agroforestry, we expect our reflections to be valuable for many other high-value crops, and a green agriculture in general.


2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Oreoluwa Joda

Mainstreaming the environment in humanitarian interventions has become crucial today, resulting from the direct and indirect impacts of climate change across the globe. Conflicts, emergencies, and disasters affect the environment in ways that influence the health, livelihoods, and long-term vulnerability of people and regions. This paper will explore the intersectionality between international development and the environment. It will highlight the various ways in which the environment can be mainstreamed in humanitarian interventions. This work will also discuss the benefits and limitations of greening humanitarian operations and will identify some tools and resources that can be employed in greening international development efforts.


2015 ◽  
Vol 164 ◽  
pp. 43-56 ◽  
Author(s):  
Kun Shi ◽  
Yunlin Zhang ◽  
Guangwei Zhu ◽  
Xiaohan Liu ◽  
Yongqiang Zhou ◽  
...  

Think India ◽  
2019 ◽  
Vol 22 (3) ◽  
pp. 1008-1016
Author(s):  
Priyanka ◽  
Ms Ipshita Bansal

Universities in the state are regarded as ‘small cities’ due to their large size, population, and the various complex activities taking place in campuses, which have some serious direct and indirect impacts on the environment. The current study focuses on the green practices in state universities of Haryana. The comparative analysis has been done between the multiple case studies and find out the best green practices being adopted in universities for moving towards making the green campus and recommend the area of improvement for making environment sustainable campus.


Author(s):  
L.V. Vetchinnikova ◽  
◽  
A.F. Titov ◽  
◽  

The article reports on the application of the best known principles for mapping natural populations of curly (Karelian) birch Betula pendula Roth var. carelica (Mercklin) Hämet-Ahti – one of the most appealing representatives of the forest tree flora. Relying on the synthesis and analysis of the published data amassed over nearly 100 years and the data from own full-scale studies done in the past few decades almost throughout the area where curly birch has grown naturally, it is concluded that its range outlined in the middle of the 20th century and since then hardly revised is outdated. The key factors and reasons necessitating its revision are specified. Herewith it is suggested that the range is delineated using the population approach, and the key element will be the critical population size below which the population is no longer viable in the long term. This approach implies that the boundaries of the taxon range depend on the boundaries of local populations (rather than the locations of individual trees or small clumps of trees), the size of which should not be lower than the critical value, which is supposed to be around 100–500 trees for curly birch. A schematic map of the curly birch range delineated using this approach is provided. We specially address the problem of determining the minimum population size to secure genetic diversity maintenance. The advantages of the population approach to delineating the distribution range of curly birch with regard to its biological features are highlighted. The authors argue that it enables a more accurate delineation of the range; shows the natural evolutionary history of the taxon (although it is not yet officially recognized as a species) and its range; can be relatively easily updated (e.g. depending on the scope of reintroduction); should be taken into account when working on the strategy of conservation and other actions designed to maintain and regenerate this unique representative of the forest tree flora.


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