Search results for "coast"
showing 10 items of 392 documents
Quantifying submarine groundwater discharge in the coastal zone via multiple methods
2006
Submarine groundwater discharge (SGD) is now recognized as an important pathway between land and sea. As such, this flow may contribute to the biogeochemical and other marine budgets of near-shore waters. These discharges typically display significant spatial and temporal variability making assessments difficult. Groundwater seepage is patchy, diffuse, temporally variable, and may involve multiple aquifers. Thus, the measurement of its magnitude and associated chemical fluxes is a challenging enterprise. A joint project of UNESCO and the International Atomic Energy Agency (IAEA) has examined several methods of SGD assessment and carried out a series of five intercomparison experiments in di…
Modelling of E. colidistribution in coastal areas subjected to combined sewer overflows
2013
Rivers, lakes and the sea were the natural receivers of raw urban waste and storm waters for a long time but the low sustainability of such practice, the increase of population and a renewed environmental sensibility increased researcher interest in the analysis and mitigation of the impact of urban waters on receiving water bodies (RWB). In Europe, the integrated modelling of drainage systems and RWB has been promoted as a promising approach for implementing the Water Framework Directive. A particular interest is given to the fate of pathogens and especially of Escherichia coli, in all the cases in which an interaction between population and the RWB is foreseen. The present paper aims to p…
The Blue Flag Programme AS Pro-Environmental Behaviour Instrument for Coastal Destinations: Towards Municipal Coastal Governance and Communication
2021
The research focuses on evaluation of the Blue Flag programme implementation in Latvia since the year 1998, when the programme’s operations started. It includes analysis and an overview of both the national and local level impacts and the results of the programme implementation. With regard to national level, approach and experience, the overview focuses on effectiveness and the role of the Blue Flag programme as a supporting instrument for successful implementation of environmental legislation. This programme is also analysed as a communication instrument in promoting environmental policies within 500 km long of coastline areas, which in Latvia are announced the national interest territori…
Pharmacology in Estonia, Latvia and Lithuania: From historical roots to nowadays achievements.
2016
This Info article offers an overview on the main historical facts and the current perspectives of the scientific and educational competence in field of pharmacology in three European countries on Baltic sea East coast: Estonia, Latvia and Lithuania. The research areas have changed constantly due to economical and political reasons during the last 200 years and today do cover quite different pharmacological areas in each of Baltic countries and are recognized internationally. Today the main topics of studies in Estonia are the pharmacology of neurodegenerative diseases, mood disorders and brain plasticity; the role of mitochondria in neurodegenerative diseases, and the epigenetics of drug de…
Technologies of the Stone Age: the Coastal Dimension: Programme and Abstracts PrehCOAST Network Workshop, Riga, Latvia, 6-8 June 2023, Institute of L…
2023
This volume contains the programme and presentation abstracts of the international workshop “Technologies of the Stone Age: The Coastal Dimension”, held on 6–8 June 2023 at the Institute of Latvian History, University of Latvia, within the frame of the PrehCOAST network.
Instytucjonalny wymiar ochrony granic zewnętrznych Unii Europejskiej w kontekście bezpieczeństwa państw członkowskich
2018
Celem artykułu jest analiza problemu funkcjonowania instytucji zapewniających ochronę zewnętrznych granic Unii Europejskiej pod kątem zagwarantowania bezpieczeństwa jej państwom w kontekście współczesnych wyzwań. Do chwili, kiedy zaistniał kryzys migracyjny istniało bowiem przekonanie, że Unia Europejska stworzyła instytucjonalne warunki dla skutecznego zapewnienia bezpieczeństwa swoich granic. UE to przestrzeń, w obrębie której realizowana jest swoboda przemieszczania się obywateli, wyrażona poprzez swobodę podróżowania, podejmowania pracy, studiowania czy zamieszkiwania w wybranym kraju Unii. Realizacja tej swobody nastąpiła w wyniku zniesienia kontroli na wewnętrznych granicach UE. Jedna…
Instytucja granic zewnętrznych Unii Europejskiej a zapewnienie bezpieczeństwa państw członkowskich w warunkach współczesnego kryzysu migracyjnego
2017
Unia Europejska to przestrzeń w obrębie której realizowana jest swoboda przemieszczania się obywateli. Realizacja tej swobody nastąpiła w wyniku zniesienia kontroli na wewnętrznych granicach Unii. Jednak dla państwa unijnego ceną tej wolności jest zapewnienie bezpieczeństwa narodowego co czyni szczególnym ochronę granic zewnętrznych. Unia Europejska, głównie poprzez Układ z Schengen stworzyła instytucje dla ochrony granic zewnętrznych pod kątem zapewnienia bezpieczeństwa narodowego państw członkowskich i ich obywateli. Obecny kryzys migracyjny stanowi poważną weryfikację dla oceny skuteczności działania tych instytucji. Celem niniejszego artykułu jest analiza problemu funkcjonowania zewnętr…
Literature, social media and questionnaire surveys identify relevant conservation areas for Carcharhinus species in the Mediterranean Sea
2023
Sharks support ecosystems’ health, but their populations are facing severe declines worldwide. Knowledge gaps on shark distribution and the negative human perception of them still represent a barrier to the implementation of effective conservation measures. Here we carried out a regional-scale analysis in the Mediterranean Sea using data on requiem shark catches and sightings available in the scientific literature and on social media platforms to: 1) depict the distribution of Carcharhinus species across the basin, 2) identify potentially relevant areas for their conservation, and 3) evaluate people’s attitude toward shark protection. In addition, we administered 112 questionnaires in one o…
Life history, environment and extinction of the Scallop Carolinapecten Eboreus (Conrad) in the Plio-Pleistocene of the U.S. Eastern Seaboard
2019
Plio-Pleistocene mass extinction of marine bivalves on the U.S. eastern seaboard has been attributed to declines in temperature and primary production. We investigate the relationship of growth rate in the scallop Carolinapecten eboreus to variation in these parameters to determine which contributed to its extinction. We use ontogenetic profiles of shell δ18O to estimate growth rate and seasonal temperature, microgrowth-increment data to validate δ18O-based figures for growth rate, and shell δ13C to supplement assemblage evidence of production. Postlarval growth started in the spring/summer in individuals from the Middle Atlantic Coastal Plain but in the autumn/ winter in some from the Gulf…
Sedimentary features reveal transport paths for Holocene sediments on the Kristianstad coastal plain, SE Sweden.
2017
AbstractWe have investigated coastal and aeolian deposits on the Kristianstad plain in southernmost Sweden by a combination of methods that has yielded data on sedimentary features such as grain-size variations, shape and character of quartz grain surfaces (determined in light microscope and scanning electron microscope), and mineralogical composition. Such sedimentary techniques have been not applied to coastal deposits in this part of the Baltic Sea region before. The littoral, foredune and parabolic dune sands are sedimentologically similar, only a slight grain-size transformation by aeolian processes in the foredune was observed. Sand in straight-crested dunes, on the other hand, origin…