Coastal Lagoons: Environmental Variability, Ecosystem Complexity, and Goods and Services Uniformity

Coastal lagoons are unique and complex ecosystems. Resulting from both terrestrial (fresh groundwater and surface water) and marine water in&#64258;uences, these ecosystems are often maintained by direct or indirect groundwater supplies and collectively known as groundwater dependent ecosystems (GDEs). Because they provide a wide range of ecosystem goods and services on which a large part of the human population depends, coastal GDEs are considered as complex socio-economic and ecological component worldwide. The increasing human development in coastal areas induces yet a strong pressure on water resources and the expected effects of climate change could exacerbate the pressures on these environments. To limit the risks of degradation and to ensure the sustainability of ecosystem services, the implementation of proper water resources management strategies is essential. This requires a strong knowledge of the environmental and socio-economic trajectories of hydrosystems, and particularly of the behavior and role of groundwater.To this end, only the combined use of several tools allows a global understanding of the spatial and temporal dynamics of the system. The correlation between isotopic tracers (18O, 2H, 3H, 15N, 11B), anthropogenic contaminants (organic micro pollutants) and mapping approaches (land-use and vulnerability) allows a historical analyze of the hydrosystem. In addition, to better constraint the hydrosystem hydrological behavior, it is also possible to highlight the current status of water resources, the historical legacy of pollutants and the consequences of past developments and practices, which continue to jeopardize the current quality of the water resource. This methodology was applied to a Mediterranean hydrosystem, in connection with a coastal lagoon (Corsica Island, France). The identification of degradation processes and their chronology could then be traced back in time.It appears that the current deterioration is mainly due to a legacy pollution resulting from the development of policies implemented 60 years earlier. In the case of coastal GDEs that are highly anthropized and subject to ever-increasing development, this methodology proposes new key elements for the establishment of relevant management strategies to ensure the future sustainability of water resources.

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Assessing the Ecological Quality of Coastal Lagoons of Western Greece: The Response of Benthic Communities to Environmental Variability

International Journal of Environmental Science and Development ◽

10.18178/ijesd.2019.10.3.1153 ◽

2019 ◽

Vol 10 (3) ◽

pp. 91-95

Author(s):

G. Fyttis ◽

◽

S. Reizopoulou ◽

E. Papastergiadou

Keyword(s):

Environmental Variability ◽

Coastal Lagoons ◽

Benthic Communities ◽

Ecological Quality ◽

Western Greece

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Exports and imports of goods and services: 1929–2002

Historical Statistics of the United States: Millennial Edition Online ◽

10.1017/isbn-9780511132971.ca74-168 ◽

2010 ◽

Author(s):

Richard Sutch

Keyword(s):

Goods And Services

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Eurasian Economic Union: A sober look

Voprosy Ekonomiki ◽

10.32609/0042-8736-2016-12-43-60 ◽

2016 ◽

pp. 43-60 ◽

Cited By ~ 4

Author(s):

E. Vinokurov

Keyword(s):

The State ◽

Customs Union ◽

Macroeconomic Policies ◽

Member States ◽

Goods And Services ◽

Eurasian Economic Union ◽

Ongoing Work ◽

General Rules ◽

Economic Union ◽

Trade And Investment

The paper appraises current progress in establishing the Customs Union and the Eurasian Economic Union (EAEU). Although the progress has slowed down after the initial rapid advancement, the Union is better viewed not as an exception from the general rules of regional economic integration but rather as one of the functioning customs unions with its successes and stumbling blocs. The paper reviews the state of Eurasian institutions, the establishment of the single market of goods and services, the situation with mutual trade and investment flows among the member states, the ongoing work on the liquidation/unification of non-tariff barriers, the problems of the efficient coordination of macroeconomic policies, progress towards establishing an EAEU network of free trade areas with partners around the world, the state of the common labor market, and the dynamics of public opinion on Eurasian integration in the five member states.

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MODERN PROBLEMS OF ACCOUNTING AND ANALYTICAL ENSURING FINANCIAL RESULTS MANAGEMENT

10.32782/2224-6282/159-20 ◽

2020 ◽

Author(s):

Yuliia Peniak ◽

◽

Nataliia Horokhovatska ◽

Keyword(s):

Performance Management ◽

Enterprise Management ◽

Goods And Services ◽

Financial Condition ◽

General Evaluation ◽

Net Profit ◽

Business Entities ◽

Results Management ◽

Main Components ◽

The Impact

The main purpose of any enterprise in the market economy is to obtain high financial results. One of the main conditions for the effective functioning of the enterprise is ability to generate profit in the amount that will create the financial basis for further development and expansion of the enterprise, comply with social and material needs, ensure competitiveness in the market of goods and services. The need for accounting and analytical management of financial results stems from needs of owners, the state and employees in information that will enable them to identify patterns and trends in financial results, identify and assess the main factors influencing the process of their creation, distribution and usage, identify reserves and thus increase the level of profitability. Despite the significant scientific contribution in the field of research of financial results of the enterprises, the issue of improvement aims to the accounting and analytical maintenance of management of financial results of the enterprise remains actual. That is why the purpose of the study is to substantiate the theoretical and practical aspects and develop approaches to improving the mechanism of formation of accounting and analytical support for the management of financial results of the enterprise. Accounting and analytical management of financial results of the enterprise is a set of interconnected elements of production and management system, activities carried out by the subject of management, creation of a certain structure, as well as collection, accumulation, storage and analysis of information necessary for effective operation of the enterprise. The main components of the study of accounting and analytical support of financial performance management are the formation of methods of analysis, control and forecasting of financial results, which requires specification of the components of the analytical and controlled process within the organizational and information model. Namely, the formation of reliable information about the financial condition of the enterprise, the analysis of economic indicators of the enterprise is of great importance in the system of general evaluation of business entities. Their research makes it possible to assess the dynamics of the structure of income and expenses, to determine the impact of factors on the company's profit from various activities, as well as to find reserves to increase the net profit of enterprises. Thus, the improvement of accounting and analytical support of enterprise management is based on the use of modern forms, methods and principles that place new demands on the formation of unbiased, complete, timely, clear and useful accounting and analytical information about the enterprise and its financial results.

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STUDY OF POND STATUS IN INDIA : A REVIEW

FLORA AND FAUNA ◽

10.33451/florafauna.v23i1pp99-104 ◽

2017 ◽

Vol 23 (1) ◽

Author(s):

V.K. YADAV ◽

SONAM SHARMA ◽

A.K. SRIVASTAVA ◽

P.K. KHARE

Keyword(s):

Fresh Water ◽

Land Surface ◽

Human Population ◽

Climate Changes ◽

Hydrological Cycle ◽

Habitat Destruction ◽

Conservation Strategy ◽

Goods And Services ◽

Human Use ◽

Over Exploitation

Ponds are an important fresh water critical ecosystem for plants and animals providing goods and services including food, fodder, fish, irrigation, hydrological cycle, shelter, medicine, culture, aesthetic and recreation. Ponds cover less than 2 percent of worlds land surface. Ponds are important source of fresh water for human use. These are threatened by urbanization, industrialization, over exploitation, fragmentation, habitat destruction, pollution, illegal capturing of land and climate changes. These above factors have been destroying ponds very rapidly putting them in danger of extinction of a great number of local biodiversity. It is necessary to formulate a correct conservation strategy for pond restoration in order to meet the growing needs of fresh water by increasing the human population. Some measures have been compiled and proposed in the present review.

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Associations between environmental variability and inversion polymorphism of Drosophila subobscura: meta-analysis of populations from the Central Balkans

Climate Research ◽

10.3354/cr01551 ◽

2019 ◽

Vol 77 (3) ◽

pp. 205-217

Author(s):

M Stamenkovic-Radak ◽

B Kenig ◽

M Djurakic ◽

M Jelic ◽

K Eric ◽

...

Keyword(s):

Environmental Variability ◽

Meta Analysis ◽

Drosophila Subobscura ◽

Inversion Polymorphism ◽

And Inversion

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Spatial ecology and growth in early life stages of bay anchovy Anchoa mitchilli in Chesapeake Bay (USA)

Marine Ecology Progress Series ◽

10.3354/meps13431 ◽

2020 ◽

Vol 651 ◽

pp. 125-143

Author(s):

TD Auth ◽

T Arula ◽

ED Houde ◽

RJ Woodland

Keyword(s):

Chesapeake Bay ◽

Spatial Ecology ◽

Environmental Variability ◽

Larval Growth ◽

Larval Abundance ◽

Spatial And Temporal Variability ◽

Estuarine Ecosystem ◽

Anchoa Mitchilli ◽

Larval Production ◽

Bay Anchovy

The bay anchovy Anchoa mitchilli is the most abundant fish in Chesapeake Bay (USA) and is a vital link between plankton and piscivores within the trophic structure of this large estuarine ecosystem. Baywide distributions and abundances of bay anchovy eggs and larvae, and larval growth, were analyzed in a 5 yr program to evaluate temporal and spatial variability based on research surveys in the 1995-1999 spawning seasons. Effects of environmental variability and abundance of zooplankton that serve as prey for larval bay anchovy were analyzed. In the years of these surveys, 97.6% of eggs and 98.8% of larvae occurred in the polyhaline lower bay. Median egg and larval abundances differed more than 10-fold for surveys conducted in the 5 yr and were highest in the lower bay. Within years, median larval abundance (ind. m-2) in the lower bay was generally 1-2 orders of magnitude higher than upper-bay abundance. Salinity, temperature, and dissolved oxygen explained 12% of the spatial and temporal variability in egg abundances and accounted for 27% of the variability in larval abundances. The mean, baywide growth rate for larvae over the 5 yr period was 0.75 ± 0.01 mm d-1, and was best explained by zooplankton concentration and feeding incidence. Among years, mean growth rates ranged from 0.68 (in 1999) to 0.81 (in 1998) mm d-1 and were fastest in the upper bay. We identified environmental factors, especially salinity, that contributed to broadscale variability in egg and larval production.

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Climate-associated trends and variability in ichthyoplankton phenology from the longest continuous larval fish time series on the east coast of the United States

Marine Ecology Progress Series ◽

10.3354/meps13404 ◽

2020 ◽

Vol 650 ◽

pp. 269-287

Author(s):

WC Thaxton ◽

JC Taylor ◽

RG Asch

Keyword(s):

United States ◽

Environmental Variability ◽

Larval Fish ◽

Interspecific Interactions ◽

River Estuary ◽

Atlantic Multidecadal Oscillation ◽

The United States ◽

Larval Survival ◽

Ecological Communities ◽

Northerly Wind

As the effects of climate change become more pronounced, variation in the direction and magnitude of shifts in species occurrence in space and time may disrupt interspecific interactions in ecological communities. In this study, we examined how the fall and winter ichthyoplankton community in the Newport River Estuary located inshore of Pamlico Sound in the southeastern United States has responded to environmental variability over the last 27 yr. We relate the timing of estuarine ingress of 10 larval fish species to changes in sea surface temperature (SST), the Atlantic Multidecadal Oscillation, the North Atlantic Oscillation, wind strength and phenology, and tidal height. We also examined whether any species exhibited trends in ingress phenology over the last 3 decades. Species varied in the magnitude of their responses to all of the environmental variables studied, but most shared a common direction of change. SST and northerly wind strength had the largest impact on estuarine ingress phenology, with most species ingressing earlier during warm years and delaying ingress during years with strong northerly winds. As SST warms in the coming decades, the average date of ingress of some species (Atlantic croaker Micropogonias undulatus, summer flounder Paralichthys dentatus, pinfish Lagodon rhomboides) is projected to advance on the order of weeks to months, assuming temperatures do not exceed a threshold at which species can no longer respond through changes in phenology. These shifts in ingress could affect larval survival and growth since environmental conditions in the estuarine and pelagic nursery habitats of fishes also vary seasonally.

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