scholarly journals Spatial Distribution of the Baltic Sea Near-Shore Wave Power Potential along the Coast of Klaipėda, Lithuania

Energies ◽  
2017 ◽  
Vol 10 (12) ◽  
pp. 2170 ◽  
Author(s):  
Egidijus Kasiulis ◽  
Jens Kofoed ◽  
Arvydas Povilaitis ◽  
Algirdas Radzevičius
Keyword(s):  
Spatial Distribution ◽  
Baltic Sea ◽  
Wave Power ◽  
The Baltic Sea ◽  
Near Shore ◽  
The Baltic ◽  
Wave Power Potential

The first large-scale assessment of three-spined stickleback (Gasterosteus aculeatus) biomass and spatial distribution in the Baltic Sea

2019 ◽  
Vol 76 (6) ◽  
pp. 1653-1665 ◽  
Author(s):  
Jens Olsson ◽  
Eglė Jakubavičiūtė ◽  
Olavi Kaljuste ◽  
Niklas Larsson ◽  
Ulf Bergström ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Baltic Sea ◽  
Gasterosteus Aculeatus ◽  
Population Characteristics ◽  
Alternative Methods ◽  
The Baltic Sea ◽  
Baltic Proper ◽  
The Baltic ◽  
The Impact ◽  
Bothnian Sea

Abstract Declines in predatory fish in combination with the impact of climate change and eutrophication have caused planktivores, including three-spined stickleback (Gasterosteus aculeatus), to increase dramatically in parts of the Baltic Sea. Resulting impacts of stickleback on coastal and offshore foodwebs have been observed, highlighting the need for increased knowledge on its population characteristics. In this article, we quantify abundance, biomass, size structure, and spatial distribution of stickleback using data from the Swedish and Finnish parts of the Baltic International Acoustic Survey (BIAS) during 2001–2014. Two alternative methods for biomass estimation suggest an increase in biomass of stickleback in the Baltic Proper, stable or increasing mean size over time, and larger individuals toward the north. The highest abundance was found in the central parts of the Baltic Proper and Bothnian Sea. The proportion of stickleback biomass in the total planktivore biomass increased from 4 to 10% in the Baltic Proper and averaged 6% of the total planktivore biomass in the Bothnian Sea. In some years, however, stickleback biomass has ranged from half to almost twice that of sprat (Sprattus sprattus) in both basins. Given the recent population expansion of stickleback and its potential role in the ecosystem, we recommend that stickleback should be considered in future monitoring programmes and in fisheries and environmental management of the Baltic Sea.

FOREIGN TOURISTS IN THE PROVINCE OF WESTERN POMERANIA IN 2006-2016

2019 ◽  
Vol 52 ◽  
pp. 43-56
Author(s):  
Czesław Koźmiński
Keyword(s):  
Spatial Distribution ◽  
Baltic Sea ◽  
Local Governments ◽  
Annual Number ◽  
Annual Data ◽  
The Baltic Sea ◽  
Local Authorities ◽  
Duration Of Stay ◽  
The Baltic ◽  
Overnight Stays

Purpose. To assess the number, structure, seasonality and duration of foreign tourists’ visits to the Province of Western Pomerania in 2006-2016 as well as to identify preferred destinations in the Province. Methods. The research was based on monthly and annual data on foreign tourists’ visits and overnight stays in Western Pomerania counties in 2006-2016. The data supplied by the Statistical Office in Szczecin were used to model: the temporal (by month) and spatial (by country) distribution of the number of foreign tourists in the Province, the variability and seasonality of the tourism flow, and the mean duration of stay at accommodation facilities. Statistical data from counties situated in Lakeland areas were used to assess the numbers of foreign tourists visiting Western Pomeranian Lakelands. Results. The analysis showed positive, highly significant linear trends in the number of foreign tourists’ visits to the Province (R²=0.7369) and in overnight stays (R²=0.8309) over the analysed period (2006-2016). Foreign tourists accounted for 23.6% of all the tourists visiting Western Pomerania; they stayed for an average of 5.0-5.5 days depending on the year, no distinct trend in the duration of stay being visible. Seasonality in the foreign tourists’ visits, as expressed by the ratio between the number of tourists in summer (June-August) and winter (December-February) and averaging 2.4, was almost two times lower than that of Polish tourists, an effect resulting from a fairly uniform distribution of visits for recreation and medical treatment throughout the year. The coefficient of variation (CV) was found to range from 15.7% in June to 26.7% in February. Due to weather conditions, 37.1% of the annual number of foreign tourists (mainly from Germany) come in summer months (June-August). The preferred destination of foreign tourists in the Province of Western Pomerania is the Baltic Sea coast (63.6% of all visits); the city of Szczecin attracts 30.1% of all the foreign tourists, whereas Western Pomeranian Lakelands are visited by as few as 3.2%. A similar percentage (3.1%) visit the seven remaining counties. Tourists stay the longest (7.1 days on average) at the seaside, the shortest visits (1.9 day) occurring in Szczecin and Koszalin. Research and conclusions limitations. A more detailed assessment of the temporal and spatial distribution of foreign tourists’ visits in the Province is hampered by incomplete reports on tourism flow in numerous municipalities. Compared to the Baltic Sea, more beneficial thermal conditions in lakes (water temperature higher by 2Cº- 4 Cº) and a longer (by 2-3 weeks) bathing season should be taken advantage of by regional and local authorities and tourist organisations to promote foreign tourists visits to and stays in the Lakeland areas. Originality. Local authorities and tourist organisations should monitor and analyse the increase in the number of foreign tourists’ visits from year to year, and should pay attention to the highly uneven spatial distribution of foreign tourists’ visits. Practical implication. The results obtained should help local governments and tourist organisations to improve services used by foreigners in the province. Type of work. Results of empirical studies are presented.

scholarly journals Total petroleum hydrocarbons in surface sediments of the Lithuanian coastal area of the Baltic Sea

Baltica ◽  
2014 ◽  
Vol 27 (special) ◽  
pp. 23-30 ◽  
Author(s):  
Sergej Suzdalev ◽  
Saulius Gulbinskas
Keyword(s):  
Baltic Sea ◽  
Petroleum Hydrocarbons ◽  
Surface Sediments ◽  
Extreme Values ◽  
Hazardous Substances ◽  
Total Petroleum Hydrocarbons ◽  
The Baltic Sea ◽  
Near Shore ◽  
Marine Lagoon ◽  
The Baltic

Operation of large oil import/export terminals and intensive shipping activities together with input of hazardous substances from terrestrial runoff and constantly developing cities makes the Lithuanian part of the Baltic Sea especially sensitive to contamination with oil products. The paper presents an overview of total petroleum hydrocarbons (TPH) distribution in surface sediments at the Lithuanian near shore and within the Klaipėda State Seaport area – transitional marine-lagoon system. The study is based on the results of examination of surface sediment samples carried out in 2010–2012. The variations of TPH content in bottom sediments are explained by differences in grain size and the genesis of the investigated sediments as well as the degree of organic material decomposition. Extreme values obtained in the Klaipėda Strait area indicate presence of additional TPH contamination sources possibly of anthropogenic origin.

scholarly journals Occurrence and spatial distribution of microplastics in the surface waters of the Baltic Sea and the Gulf of Riga

2021 ◽  
Vol 172 ◽  
pp. 112860
Author(s):  
Juris Aigars ◽  
Marta Barone ◽  
Natalija Suhareva ◽  
Ieva Putna-Nimane ◽  
Inta Dimante-Deimantovica
Keyword(s):  
Spatial Distribution ◽  
Baltic Sea ◽  
Surface Waters ◽  
The Baltic Sea ◽  
Gulf Of Riga ◽  
The Baltic

Distribution and abundance of microflora in sandy beaches on the southern coast of the Baltic Sea

2013 ◽  
Vol 42 (3) ◽  
Author(s):  
Zbigniew Mudryk ◽  
Piotr Perliński ◽  
Piotr Skórczewski ◽  
Milena Wielgat ◽  
Marta Zdanowicz
Keyword(s):  
Spatial Distribution ◽  
Baltic Sea ◽  
Filamentous Fungi ◽  
Sandy Beaches ◽  
Subtidal Zone ◽  
Sand Layer ◽  
Southern Coast ◽  
The Baltic Sea ◽  
The Baltic ◽  
Anthropic Pressure

AbstractThe abundance of actinomycetes, filamentous fungi and yeasts in the marine epipsammon habitat and their spatial distribution were studied with conventional plating techniques in two marine beaches (Ustka and Czołpino, southern Baltic Sea) which are characterized by different anthropic pressure levels. Actinomycetes constituted the predominant group of studied microorganisms, while the least numerous were yeasts in the sand of both studied beaches. On both of the beaches researched in this study, the amounts of accumulated actinomycetales, fungi and yeasts were similar. When analyzing the distribution of the microflora along the horizontal beach profiles we found significant differences. In the sand collected along the profile perpendicular to the shoreline in Ustka and Czołpino beaches, the highest numbers of actinomycetes, filamentous fungi and yeasts were noted in the samples from the dune and the lowest in those from the subtidal zone and waterline. Generally, higher numbers of studied microorganisms were observed in the surface than in the subsurface sand layer. The occurrence of actinomycetes, filamentous fungi and yeasts showed considerable seasonal variation.

scholarly journals Spatial Distribution of Energy of Subinertial Baroclinic Motions in the Baltic Sea

2020 ◽  
Vol 8 ◽  
Author(s):  
Andrey Kurkin ◽  
Artem Rybin ◽  
Tarmo Soomere ◽  
Oxana Kurkina ◽  
Ekaterina Rouvinskaya
Keyword(s):  
Spatial Distribution ◽  
Baltic Sea ◽  
The Baltic Sea ◽  
The Baltic
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