scholarly journals Dynamic adaptations of the Mesolithic pioneers of Gotland in the Baltic Sea

2020 ◽  
Vol 47 ◽  
pp. 6-26
Author(s):  
Jan Apel ◽  
Jan Storå

Mesolithic pioneers reached Gotland around 9200 cal BP and adopted seal-hunting. The subsistence economy was flexible, and the importance of freshwater fish is reflected in the location of settlements and available stable isotope data. Overgrowing lakes provided an important subsistence base, and marine resources were mainly related to raw material needs. The narrower breadth of resources is reflected in the osseous production, where implements were made from seal bones. The lithic technology exhibits local adaptations over time – in the form of a simplification of the technology – that we relate to sedentism and increases in risk management and external networks.

2017 ◽  
Vol 18 (4) ◽  
pp. 275-281
Author(s):  
Darius Bazaras ◽  
Ramūnas Palšaitis ◽  
Artūras Petraška ◽  
Andrejs Zvaigzne

Abstract This paper reviews the principles of transportation risk assessment in the Baltic Sea ports and hinterland. The essential steps of assessment are the identification of primary criterions, the determining the underlying criterion groups and quantitative assessment of international environment indicators and nature, infrastructure indicators and organizational indicators on the basis of the multiple-criteria evaluation methods. Designed system of criteria creates a possibility for objective evaluation of risk management processes and allows planning objectively long-term risk management strategy in the ports according to certain economic development circumstances.


2013 ◽  
Vol 23 (2) ◽  
pp. 227-239 ◽  
Author(s):  
Fredrik Fahlander

This article explores the potential of studying the social dimensions of old age and aged bodies in the past. Because old age is relative to life-expectancy figures, diet and lifestyle, calendric years are avoided when defining old age. Instead a composite approach is advocated that includes, for example, traces of wear and joint diseases to identify a threshold between adulthood and a period of seniority. The approach is applied to the Middle Neolithic burial ground Ajvide on the island of Gotland in the Baltic Sea. Eleven individuals (six men, five women, or 18 per cent of the 62 analysed burials) are regarded as ‘aged bodies’. At Ajvide a majority of these individuals are buried in graves that overlap earlier burials containing younger individuals of the same sex. It is argued that this pattern is due to eschatological ideas of ‘generational merging’ of bodies. This practice changes over time, which is suggested to be a part of the overall hybridization processes at the site.


2019 ◽  
Vol 10 (1 (32)) ◽  
pp. 21-33
Author(s):  
Magdalena Gielo-Politewicz

The aim of the paper is to present issues connected with responsibility in the fishery industry. The paper discusses the ‘tragedy of common.’ An attempt was made to formulate proposals for how to increase the efficiency of marine resource management and reduce the problem of declining fisheries. The publication analyses the current Common Fisheries Policy in the context of overfishing. It will take a great deal of serious effort for fishermen, scientists and politicians to solve the problem of the Baltic Sea. The rebirth of fish stocks will create healthier ecosystems and greater reproduction of fish populations. A higher number of fish schools may result in more balanced catch figures. It is expected that profits will increase and thereby result in more jobs and higher salaries, leading to a greater overall profitability of the fishing sector. JEL classification: Q 22


Author(s):  
David Chicoine ◽  
Carol Rojas ◽  
Víctor Vásquez ◽  
Teresa Rosales

Chapter 7 reviews results of zooarchaeological research at Caylán, a large Early Horizon center located 15 km inland in the Nepeña valley on the Peruvian north coast. This dense, urban site was occupied in the Nepeña Phase (800–450 cal BC) the Samanco Phase (450–150 cal BC). Much of the plant and animal food was supplied by external producers or foragers. Marine resources were always important at the site but over time the inhabitants increasingly relied on domestic animals. The authors see little evidence for top-down control of the subsistence economy; animal products moved through multiple networks structured by kinship and other exchange mechanisms.


Author(s):  
Jørgen S. Steenfelt

For offshore, nearshore and harbour structures ice loading is often a decisive ULS load. However, the Code requirements, the regulations and design practices vary considerably across the Baltic Sea region and beyond. This result in incommensurable values of the compressive strength of the ice and the resulting recommended/prescribed design loads. The paper examines these differences over time and in-between countries and elucidates the effects on the design for a number of case histories. The Danish rules show a pronounced trend of increasing values of compressive ice strength (five-fold from 1945 to 2015). Surprisingly, this is commensurate with the trend of less severe winters with time. In conclusion, the Danish code requirements need critical review to better match reality and to reduce the cost of foundation structures subject to ice loading.


AMBIO ◽  
2021 ◽  
Author(s):  
Tore Söderqvist ◽  
Hanna Nathaniel ◽  
Daniel Franzén ◽  
Frida Franzén ◽  
Linus Hasselström ◽  
...  

AbstractHarvesting beach-cast can help mitigate marine eutrophication by closing land-marine nutrient loops and provide a blue biomass raw material for the bioeconomy. Cost–benefit analysis was applied to harvest activities during 2009–2018 on the island of Gotland in the Baltic Sea, highlighting benefits such as nutrient removal from the marine system and improved recreational opportunities as well as costs of using inputs necessary for harvest. The results indicate that the activities entailed a net gain to society, lending substance to continued funding for harvests on Gotland and assessments of upscaling of harvest activities to other areas in Sweden and elsewhere. The lessons learnt from the considerable harvest experience on Gotland should be utilized for developing concrete guidelines for carrying out sustainable harvest practice, paying due attention to local conditions but also to what can be generalized to a wider national and international context.


Boreas ◽  
2002 ◽  
Vol 31 (1) ◽  
pp. 65-74 ◽  
Author(s):  
Christian Christiansen ◽  
Helmar Kunzendorf ◽  
Kay-Christian Emeis ◽  
Rudolf Endler ◽  
Ulrich Struck ◽  
...  

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