Mitochondrial DNA analysis of harbour porpoises ( Phocoena phocoena ) in the Baltic Sea, the Kattegat-Skagerrak Seas and off the west coast of Norway

1997 ◽  
Vol 127 (4) ◽  
pp. 531-537 ◽  
Author(s):  
J. Y. Wang ◽  
P. Berggren
Keyword(s):  
Mitochondrial Dna ◽  
Baltic Sea ◽  
West Coast ◽  
Dna Analysis ◽  
Phocoena Phocoena ◽  
The Baltic Sea ◽  
The West ◽  
Mitochondrial Dna Analysis ◽  
The Baltic

scholarly journals Nematode Parasites in Baltic Sea Mammals, Grey Seal (Halichoerus grypus (Fabricius, 1791)) and Harbour Porpoise (Phocoena phocoena (L.)), from the German Coast

2020 ◽  
Author(s):  
Michael Gabel ◽  
Stefan Theisen ◽  
Harry Wilhelm Palm ◽  
Michael Dähne ◽  
Patrick Unger
Keyword(s):  
Baltic Sea ◽  
Parasite Species ◽  
Parasite Fauna ◽  
Eastern Coast ◽  
Halichoerus Grypus ◽  
Phocoena Phocoena ◽  
The Baltic Sea ◽  
Nematode Parasites ◽  
The Baltic ◽  
Anisakid Nematodes

Abstract Purpose Endoparasitic nematodes of six harbour porpoises Phocoena phocoena and four grey seals Halichoerus grypus, stranded at the eastern coast of the Baltic Sea in Germany in winter 2019, were analysed in order to identify nematode parasites and to compare with recent studies from the same area. Methods Endoparasitic nematodes were identified by using both morphological and molecular characters. The successfully obtained sequences of the rDNA marker regions ITS-1, 5.8S, ITS-2 from 29 anisakid and the rDNA marker region ITS-2 of 11 pseudalid nematodes were amplified. Results Analyses revealed the presence of three parasite species, the anisakid nematode Contracaecum osculatum from grey seals and the pseudalid nematodes Pseudalius inflexus and Stenurus minor from the harbour porpoises. Other anisakid nematodes regularly occurring in the Baltic Sea, e.g. Anisakis simplex or Pseudoterranova decipiens, were not found. Conclusions The prevalence of 100% and a severe parasite load in grey seals demonstrated a very high C. osculatum infection of Baltic Sea fish as their regular prey. Prevalence of 33% for parasites in harbour porpoises and minor infection rates, combined with a distinct lack of anisakid nematodes, are typical for the current situation of the porpoise parasite fauna in the Baltic Sea. Invasive parasite species as possible indicators for climate change could not be detected.

scholarly journals Wind of Change

2019 ◽  
Vol 28 (1) ◽  
pp. 78-84 ◽  
Author(s):  
Tanel Rander
Keyword(s):  
Baltic Sea ◽  
Collective Memory ◽  
Home Country ◽  
Local People ◽  
The Baltic Sea ◽  
The West ◽  
Nuclear Missiles ◽  
The Baltic ◽  
The Way ◽  
Led Zeppelin

What remains of the Soviet identity for those who grew up in an empire that started in the Baltic sea and ended in Kamchatka? What kind of post-Soviet cultural combos have been produced afterwards? Was it bizarre to listen to Led Zeppelin and Nirvana while being targeted with nuclear missiles from the West? In a retrospective way and engaging with the collective memory of his home country, Estonia, the author reflects on different narratives of Europeanisation, shame and peripherality and the way local people embodied them.

Post-Glacial immigration of the harbour porpoise (Phocoena phocoena) into the Baltic Sea*

Boreas ◽  
2008 ◽  
Vol 37 (3) ◽  
pp. 458-464 ◽  
Author(s):  
ROBERT S. SOMMER ◽  
JULIANE PASOLD ◽  
ULRICH SCHMÖLCKE
Keyword(s):  
Baltic Sea ◽  
Harbour Porpoise ◽  
Phocoena Phocoena ◽  
The Baltic Sea ◽  
The Baltic

scholarly journals Baltic Sea sediments record anthropogenic loads of Cd, Pb, and Zn

2020 ◽  
Author(s):  
Sina Shahabi-Ghahfarokhi ◽  
Sarah Josefsson ◽  
Anna Apler ◽  
Karsten Kalbitz ◽  
Mats Åström ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Environmental Governance ◽  
Heavy Metal Contamination ◽  
The Baltic Sea ◽  
The West ◽  
Large Spatial Scale ◽  
Bottom Waters ◽  
Baltic Proper ◽  
The Baltic ◽  
Bothnian Bay

Abstract The unsustainable settlement and high industrialization around the catchment of the Baltic Sea has left records of anthropogenic heavy metal contamination in Baltic Sea sediments. Here, we show that sediments record post-industrial and anthropogenic loads of Cd, Zn, and Pb over a large spatial scale in the Baltic Sea. We also demonstrate that there is a control on the accumulation of these metals in relation to oxic/anoxic conditions of bottom waters. The total concentrations of Cd, Zn, and Pb were obtained with the near-total digestion method in thirteen cores collected from the Bothnian Bay, the Bothnian Sea, and the west and central Baltic Proper. The lowest average concentrations of Cd, Zn, and Pb were observed in Bothnian Bay (0.4, 125, 40.2 mg kg−1 DW, respectively). In contrast, the highest concentrations were observed in the west Baltic Proper (5.5, 435, and 56.6 mg kg−1 DW, respectively). The results indicate an increasing trend for Cd, Zn, and Pb from the early nineteenth century until the 1970s, followed by a decrease until 2000–2008. However, surface sediments still have concentrations above the pre-industrial values suggested by the Swedish EPA (Cd is 0.2, Zn is 85, and Pb is 31 mg kg−1 DW). The results also show that the pre-industrial Cd, Zn, and Pb concentrations obtained from 3 cores with ages < 1500 B.C. were 1.8, 1.7, and 1.2 times higher, respectively, than the pre-industrial values suggested by the Swedish EPA. To conclude, accumulations of metals in the Baltic Sea are governed by anthropogenic load and the redox conditions of the environment. The significance of correct environmental governance (measures) can be illustrated with the reduction in the pollution of Pb, Zn, and Cd within the Baltic Sea since the 1980s.

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