Archaeologia Baltica

The Baltic Sea Region (BSR) appears as a specific space in which ports, maritime transport and the entire shipping cluster are crucially important. The BSR is one of the most heavily trafficked seas in the world, and maritime transport has contributed to its prosperity. After the collapse of the USSR, the Baltic Sea recovered its role as a contact and transit area. The opening up of the eastern shore to the market economy has brought about the reactivation of its maritime system, which over the years never stopped being a major element in the production of regional integration. Discourses on Baltic unity are often based on the importance of maritimity and maritime trade, but there is also a significant regional diversity in the shipping industry. Nowadays, the emergence of new directions in specialisation, and of new decision makers in ports, allows for new expectations and issues for Baltic ports. The author shows how, in this special Baltic context, ports and maritime stakeholders interact, participating in regional development and integration, but also by pursuing differentiated trajectories.

The research analyses the beach litter monitoring programme in Latvia and provides suggestions for its improvement seeking to provide necessary information for effective marine litter management on the Latvian coastline of the Baltic Sea. The beach litter monitoring programme has been enacted since 2012 by NGO “FEE Latvia” and current research has been focused on the situation assessment and particularly provides analyses on a number and distribution of the surveyed beaches, the frequency and timing of the monitoring, litter classification and counting methodology, as well as the possible programme development using the NGO work based on the citizen science approach. The results allow to elaborate several suggestions on how to improve the programme in order to provide lacking information in Latvia on the implementation of the Marine Strategy Framework directive of European Union, and to advise local municipalities in their coastal waste management practices. The suggestions include the increasing number of monitoring sites, a prioritization of the EU Master list classification protocol and an increase of sites with higher frequency of monitoring (3 times per year). Moreover, in the conducted public survey, the beach visitors demonstrated good understanding of marine litter and highly prioritized the issue. The increased interest can add public participation to further development of this applied here citizen science approach.

Physical and chemical parameters were measured in a mostly freshwater estuarine lagoon in the SE Baltic. Present paper demonstrates an attempt to trace the sources and analyse the seasonal and spatial patterns of distribution of POC, DIC and DOC in the Curonian lagoon mostly by the isotopic content in different forms of carbon. Samples were collected in 2012-2014 in 9 stations in the Curonian lagoon including riverine and marine input/output stations. Riverine inputs and summarizing outflow to the Baltic sea locations (Nemunas river delta and Klaipeda channel stations were sampled monthly, while POC, DIC and DOC samples in other stations were collected on a seasonal basis. The observed results allow easily differentiate between estuarine and riverine POM samples, while the differences in DOC δ13C content between sampling stations were found to be not statistically reliable. The high biological productivity of the Nemunas river along with the minor contribution of the Baltic Sea inflows to the overall hydrodynamics of the lagoon explain similarity of content between riverine and estuarine material in the spring and autumn. However, the δ13C content of DIC and DOC could serve as indicator of external inputs only in connection with seasonal water residence variations.

Ostrow Lednicki, an island situated in Lake Lednica between Gniezno and Poznań, is an important archaeological site from the period of the beginnings of the Polish state. In the tenth and 11th centuries, apart from Gniezno, Poznań and Giecz, the town, which has been preserved together with the remains of a stone palace, was one of the main towns of the state of Mieszko I and Bolesław I the Brave. The significance of Ostrow Lednicki in the Early Middle Ages is also emphasised by two bridges leading to the island, the Gniezno bridge from the east, and, the Poznań bridge from the west, which mark an important communication route in that period between Poznań and Gniezno. With the exception of towns, bridges like this were the largest engineering constructions of the epoch in the Slavic world. Systematic underwater studies of the remains of the bridges were undertaken in 1982, and have been carried out with intervals until today. In 2000 and 2001, the exploration of the west bridge was supported financially by the Foundation for Polish Science. It was concerned in particular with building a special apparatus for the conservation of movable monuments after excavating them during underwater studies in the area of the bridge’s location and found by means of metal detectors used in the close vicinity of the west bridge. These studies yielded a large number of artefacts, enriching our knowledge of the material culture of the Early Middle Ages. The military finds, consisting, so far, of over 150 axes and several dozen spearheads and javelins, are exceptionally important. This unique collection of military objects has no counterpart in European archaeology.

The article presents the latest data on ships sunk in Lithuanian territorial waters of the Baltic Sea obtained during archaeological research conducted by the Underwater Archaeology Group of Klaipėda University. The article contains detailed descriptions of the ways these ships were wrecked as found in historical sources from the 14th to the early 20th century, the localisation of newly found remains of wooden ships, data of their study and possibilities for dating them.