scholarly journals Case study of the diet and parasite fauna of and extremely rare fish species Lumpenus lampraeteformis (Perciformes, Stichaeidae) from the Gulf of Gdañsk (south Baltic Proper)

2018 ◽  
Vol 26 (1) ◽  
pp. 73-77
Author(s):  
Beata Więcaszek ◽  
Ewa Sobecka ◽  
Marek Szulc ◽  
Klaudia Górecka
Keyword(s):  
Baltic Sea ◽  
Gonadosomatic Index ◽  
Stomach Contents ◽  
Parasite Fauna ◽  
Ice Age ◽  
Gulf Of Gdańsk ◽  
The Baltic Sea ◽  
Gulf Of Gdansk ◽  
The Baltic ◽  
First Time

Abstract The snakeblenny, Lumpenus lampretaeformis, is a post glacial relict from the last ice age in the Baltic Sea. Reliable data on its diet, parasite fauna, distribution, population size, and population trends in the Baltic Sea are lacking. In the Polish zone it has been observed only in ICES subdivisions 25 (Slupsk Furrow) and 26 (Puck Bay, Krynica Morska, Władysławowo and Vistula mouth fishing grounds) at depths of 30-70 m; however, in recent decades only one finding of snakeblenny in Polish waters has been reported. This paper reports the record of one female specimen from the Gulf of Gdañsk. The individual’s morphological characters, stomach contents, parasitic fauna, age and gonadosomatic index were examined. The parasitological examination, which was undertaken for the first time on a specimen from the Baltic Sea since the 1930s, revealed that L. lampretaeformis was the host of one parasite species, namely a juvenile acanthocephalan Echinorhynchus gadi. Additionally, Pontoporeia fermorata and Halicryptus spinulosus were recorded in the stomach of snakeblenny for the first time in the Baltic Sea.

Holocene diatom biostratigraphy of the SW Gulf of Gdańsk, Southern Baltic Sea (part III)

2008 ◽  
Vol 37 (4) ◽  
Author(s):  
Małgorzata Leśniewska ◽  
Małgorzata Witak
Keyword(s):  
Baltic Sea ◽  
The South ◽  
Gulf Of Gdańsk ◽  
The Baltic Sea ◽  
Southern Baltic Sea ◽  
Gulf Of Gdansk ◽  
Southern Baltic ◽  
The Baltic ◽  
Palaeoenvironmental Changes

Holocene diatom biostratigraphy of the SW Gulf of Gdańsk, Southern Baltic Sea (part III)The palaeoenvironmental changes of the south-western part of the Gulf of Gdańsk during the last 8,000 years, with reference to the stages of the Baltic Sea, were reconstructed. Diatom analyses of two cores taken from the shallower and deeper parts of the basin enabled the conclusion to be drawn that the microflora studied developed in the three Baltic phases: Mastogloia, Littorina and Post-Littorina. Moreover, the so-called anthropogenic assemblage was observed in subbottom sediments of the study area.

scholarly journals Draft Genome Sequence of Paracoccus sp. Strain 228, Isolated from Surface Water of the Gulf of Gdańsk in the Baltic Sea

2019 ◽  
Vol 8 (29) ◽  
Author(s):  
Joanna Karczewska-Golec ◽  
Maja Kochanowska-Łyżen ◽  
Magdalena Bałut ◽  
Arkadiusz Piotrowski ◽  
Piotr Golec ◽  
...  
Keyword(s):  
Surface Water ◽  
Baltic Sea ◽  
Genome Sequence ◽  
Draft Genome ◽  
Draft Genome Sequence ◽  
Gulf Of Gdańsk ◽  
The Baltic Sea ◽  
Content Type ◽  
Gulf Of Gdansk ◽  
The Baltic

We present here the draft genome sequence of Paracoccus sp. strain 228, isolated from the Gulf of Gdańsk in the southern part of the Baltic Sea. The assembly contains 4,131,609 bp in 32 scaffolds.

scholarly journals Elemental composition of invertebrates shells composed of different CaCO<sub>3</sub> polymorphs at different ontogenetic stages: a case study from the brackish Gulf of Gdansk (the Baltic Sea)

2019 ◽  
Author(s):  
Anna Piwoni-Piórewicz ◽  
Stanislav Strekopytov ◽  
Emma Humphreys-Williams ◽  
Piotr Kukliński
Keyword(s):  
Biological Control ◽  
Trace Elements ◽  
Environmental Factors ◽  
Baltic Sea ◽  
Older Individuals ◽  
Gulf Of Gdańsk ◽  
The Baltic Sea ◽  
Gulf Of Gdansk ◽  
The Baltic

Abstract. In this study, the concentrations of 12 metals: Ca, Na, Sr, Mg, Ba, Mn, Cu, Pb, V, Y, U and Cd in shells of bivalve molluscs (aragonitic: Cerastoderma glaucum, Mya arenaria and Limecola balthica and bimineralic: Mytilus trossulus) and arthropods (calcitic: Amphibalanus improvisus) were obtained. The main goal was to determine the incorporation patterns of shells built with different calcium carbonate polymorphs. The role of potential biological control on the shell chemistry was assessed by comparing the concentrations of trace elements between younger and older individuals (different size classes). The potential impact of environmental factors on the observed elemental concentrations in the studied shells is discussed. Specimens were collected from brackish waters of the Baltic Sea (the Gulf of Gdansk). For every species, 40 individuals (ten in each size class) were selected. Pre-cleaned shells were analysed by ICP-OES and ICP-MS to determine the concentrations of metals. The distributions of elements both differ between species and exhibit high intraspecific variability. Calcitic shells preferentially incorporated Mg > Sr > Na, aragonitic shells incorporated Na > Sr > Mg, and bimineralic shells accumulated Na approximately two times more intensively, than Mg and Sr which remained at similar levels. Among all species, the calcitic shells of A. improvisus most effectively concentrated the majority of the studied elements, especially Mg > Mn > Ba, which was contrary to the shells of aragonitic molluscs that contained the lowest levels of trace elements. The size-dependent distributions of elements in shells did not exhibit a consistent pattern. The highest significant differences were found for the bimineralic shells of M. trossulus, while the smallest were found for aragonitic shells; if any variability occurred, it was observed in heavy metals (Pb, Cd). Our results indicate that elemental variability, especially that of Mg and Sr, is dominated by the properties of the crystal lattice. The inconsistent variability of trace element concentrations between species and within single populations supports the important role of species-specific biological control of the biomineralization process and indicates that environmental factors have a significant influence on the incorporation of trace elements into the shells.

scholarly journals The flies (Diptera) say that amber from the Gulf of Gdańsk, Bitterfeld and Rovno is the same Baltic amber

2013 ◽  
Vol 82 (4) ◽  
pp. 379-388 ◽  
Author(s):  
Jacek Szwedo ◽  
Elżbieta Sontag
Keyword(s):  
Species Composition ◽  
Baltic Sea ◽  
Geographical Origin ◽  
Baltic Amber ◽  
Gulf Of Gdańsk ◽  
The Baltic Sea ◽  
Biting Midges ◽  
Gulf Of Gdansk ◽  
The Baltic ◽  
Sea Coast

ABSTRACT Amber and its inclusions have been studied for over 200 years. Particular reverence was accorded the amber from the deposits around the Gulf of Gdańsk. As knowledge of amber increased, the problem of distinguishing amber from the various deposits along the Baltic Sea coast, but also in Germany, Belarus and Ukraine arose. Here we discuss the species composition of biting midges (Ceratopogonidae) from amber derived from different deposits, and discuss the use of regional names for Baltic amber yielding inclusions from the same taphocoenosis but of different geographical origin.

scholarly journals The supply of total nitrogen and total phosphorus from small urban catchments into the Gulf of Gdańsk

Baltica ◽  
2019 ◽  
Vol 31 (2) ◽  
pp. 154-164
Author(s):  
Roman Cieśliński ◽  
Alicja Olszewska ◽  
Łukasz Pietruszyński ◽  
Marta Budzisz ◽  
Katarzyna Jereczek-Korzeniewska ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Total Nitrogen ◽  
Total Phosphorus ◽  
Gulf Of Gdańsk ◽  
The Baltic Sea ◽  
Small Streams ◽  
Urban Catchments ◽  
Gulf Of Gdansk ◽  
The Baltic ◽  
The City

The main goal of work was to quantify the nitrogen and phosphorus loads transported by small streams to the Gulf of Gdańsk. The research aims to determine wastewater release volumes over time, instead of focusing only on spatial distributions. Another aim is to identify the main determinants potentially affecting water quality in rivers flowing across the city of Sopot. The study area consists of six small river catchments located in the city of Sopot, each with an open flow channel, which lies along the bay. Studies were conducted 12 times per year in the period from March 2014 to February 2015. Laboratory analyses were performed to determine the concentration of both total nitrogen and total phosphorus. In order to calculate pollutant loads, discharge was also measured in each of studied rivers. Conducted research has shown that all analyzed streams were characterized by low total nitrogen and total phosphorus concentrations. The mean annual values ranged from 0.60 to 1.28 mg·dm-3 in case of total nitrogen and from 0.066 to 0.100 mg·dm-3 in case of total phosphorus. In 2012, the total nitrogen load from Poland to the Baltic Sea was 210.768.000 kg N while the total phosphorus load was 15.269.000 kg P, which means that streams analyzed in this paper supplied barely 0.002 % of the biogenic load supplied to the Baltic Sea by Poland as a whole.

scholarly journals Seasonal and Spatial Changes of Primary Production in the Baltic Sea (Europe) Based on in situ Measurements in the Period of 1993–2018

2021 ◽  
Vol 7 ◽  
Author(s):  
Agnieszka Zdun ◽  
Joanna Stoń-Egiert ◽  
Dariusz Ficek ◽  
Mirosława Ostrowska
Keyword(s):  
Primary Production ◽  
Baltic Sea ◽  
Spring Bloom ◽  
Gulf Of Gdańsk ◽  
The Baltic Sea ◽  
Production Values ◽  
Spatial Changes ◽  
Gulf Of Gdansk ◽  
The Baltic

The seasonal and spatial variability of primary production (PP) measured using 14C method in two regions: open waters of the Baltic Sea and the Gulf of Gdansk were discussed. The statistical analyses of 26-years dataset (from 1993 to 2018) allow to confirm some regularities of productivity and find some features resulting mainly from changing environmental conditions like solar insolation, temperature, and chlorophyll a concentration. In the dataset, production values varied from 0.005 to 7.8 g C m–2 day–1 in open waters and from 0.07 to 12.9 g C m–2 day–1 in the Gulf of Gdansk. Analysis showed that PP in open waters were 6–17% lower than in Gulf of Gdansk in most of the cases. In both regions, the periods of intense productivity in spring and autumn were observed, but vegetation begins a month earlier in the Gulf of Gdansk than in open waters. Probably the accumulation of nutrients after the winter causes the spring bloom (April–May) in both regions to be more intense (even two times higher) than the autumn bloom (September–October) associated with favorable hydrological conditions resulting from summer insolation. The presented results showed slight downward trends in productivity in both regions, the most visible in the spring in the Bay of Gdansk. This confirms the recent reports on a possible improvement in the eutrophication state of the Baltic Sea.

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