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Composition of phytoplankton in the Puck Bay and the open Baltic Sea

100%
Świacka K., Michnowska A., Maculewicz J., Przednowek I., Ogrodowczyk I., Kozic S.
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
|
2017
EN
The Puck Bay is an area characterised by specific hydrodynamic conditions that determine the distribution and composition of phytoplankton. The aim of this study was to investigate the differences in the phytoplankton composition and the content of photosynthetic pigments between the Puck Bay and open Baltic Sea. The material was collected from four stands which were localised in the inner and outer part of Hel Peninsula. In this study, it has been demonstrated that the composition of individual species of phytoplankton differed between stands in the inner and outer part of the Puck Bay. This investigation has also shown that the number of phytoplankton taxa was similar in three stands and it was much lower on the last stand (Stand 4). The differences in the concentration of photosynthetic pigments between all stands have also been observed.
2

Analiza pozostałości organicznych w ceramice kultury rzucewskiej z Rzucewa

63%
Cramp L. J. E., Król D., Rutter M., Heyd V., Pospieszny Ł.
Pomorania Antiqua
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2019
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vol. Tom XXVIII
s. 245-259
EN
During the lifetime of an unglazed pot, biomolecules from the vessel contents accumulate into pores in the vessel wall. Lipids, especially, survive over millennia and when extracted from archaeological pottery therefore yield diagnostic information regarding its original contents. Here we report the analysis of preserved lipids extracted from 15 Rzucewo culture pottery sherds, including bowls, vases and storage vessels, from Rzucewo, Puck Bay, Poland. This was undertaken in order to gain further insights into the subsistence economy and use of material culture by this Late Neolithic culture, who are thought to practice a mixed economy that incorporated domesticates into a subsistence base focused primarily upon seal-hunting. Lipids recovered from 13 of 15 sherds analysed could be characterised as of predominantly aquatic origin, with more limited evidence for some likely plant waxes from two vessels. The range of stable carbon isotope signatures of the fatty acids reflect a marine through to freshwater origin, which may have derived from animals fished or hunted from brackish waters, as well perhaps as the sea and inland rivers. There was no evidence for processing dairy products, in contrast with the published Rzucewo pottery from Nida, Lithuania (Heron et al. 2015), which may arise from the lack of beakers included in this vessel assemblage. These findings may also be contrasted with previously published studies from related Corded Ware and Globular Amphorae cultures (Cramp et al. 2014a; Heron et al. 2015; Roffet-Salque et al. 2017a; Robson et al. 2019) which reflect greater processing of terrestrial products, particularly ruminants, and including a strong dairying component (Cramp et al. 2014a; Roffet-Salque et al. 2017b). This preliminary study indicates the potential and necessity to investigate greater numbers of Rzucewo culture pottery from different vessel forms and a greater number of sites to gain more nuanced insights into the cultural and economic practices taking place.
3

Wyniki ratowniczych badań wykopaliskowych w Swarzewie stan. 41, gm. Władysławowo

63%
Inga Michalak K. I., Połczyński Ł.
Pomorania Antiqua
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2022
|
vol. Tom XXXI
65–86
EN
The article presents the results of the rescue excavations at the Swarzewo 41 (AZP 03-41/2) settlement site located in Władysławowo commune, ca. 3 km south of the Baltic Sea coastline and 2.5 km west of the Puck Bay (N: 54,778390; E:18,381715). The site has been explored on October 18, 2018, and October 24 – November 09, 2018 by Azupiranu Jakub Prager in advance of the construction of a gas processing plant under the BalticGas Project. In total, an area of 2470 square metres was excavated (Fig. 1). Within the research, a total number of 13 archaeological features were documented and excavated, and 623 pottery shards, two pieces of daub, and one flint were recovered and analysed. Distribution of archaeological features was limited to a small area, mainly in trench 4 (Fig. 2). Pits were grouped in an area of ca. 11 metres radius with six pits with traces of burnt and one fire pit in the central part of this area. No traces of permanent settlement were observed. This probably indicates that Swarzewo 41 was a short-term settlement. The pottery is characteristic of Lusatian-Pomeranian cultural cycle and can be broadly dated to the Late Bronze Age/beginning of Early Iron Age (from the end of Bronze V to Hallstatt D). The pottery underwent macroscopic technological (raw material and admixture), taphonomic (degree of fragmentation and surface damage) and stylistic (characteristic of rims, bases and handles, and types of vessels) analyses. As the analysis demonstrated, pottery fragments were remains of about 66 vessels. Pottery fragmentation was categorized on the basis of shards size (1 cm, 2–3 cm, 4–6 cm, 7–10 cm, 11< cm), the part of the vessel represented (B–body, W–rim, D–base, U–handle, N–leg) and the degree of surface damage (Table 1). Ceramic is highly fragmented and poorly preserved which is typical of the pottery excavated from the settlement sites related to the Lusatian-Pomeranian cultural cycle. The pottery paste contains mineral admixture – mainly a medium grain (1–2 mm) crushed rocks, less frequently sand (Table 2). Five items were made with well-prepared, fine pottery paste without admixture. Among them is a small, highly fragmented bowl (Figs. 4, 5:11). Its original surface coated with engobe has been damaged in the curse of depositional and post-depositional processes. Thanks to this, it is possible to observe traces of the potter's hands and botanical imprints left during the manufacturing of the vessel (Fig. 4). Despite the poor state of preservation and fragmentation it was possible to distinguish following forms of the vessels: a pot, round plates, bowls, and probably a fragment of a reel-like briquetage item (Figs. 5, 6).
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