Temporal trends of PBDD/Fs, PCDD/Fs, PBDEs and PCBs in ringed seals from the Baltic Sea (Pusa hispida botnica) between 1974 and 2015

2018 ◽  
Vol 616-617 ◽  
pp. 1374-1383 ◽  
Author(s):  
F. Bjurlid ◽  
A. Roos ◽  
I. Ericson Jogsten ◽  
J. Hagberg
Keyword(s):  
Baltic Sea ◽  
Temporal Trends ◽  
The Baltic Sea ◽  
Ringed Seals ◽  
Pusa Hispida ◽  
The Baltic

Comparison between spring and autumn infection by Corynosoma (Acanthocephala) in the ringed seal Pusa hispida in the Bothnian Bay of the Baltic Sea

Parasitology ◽  
1981 ◽  
Vol 82 (2) ◽  
pp. 287-296 ◽  
Author(s):  
Eero Helle ◽  
E. Tellervo Valtonen
Keyword(s):  
Baltic Sea ◽  
Feeding Habits ◽  
Ringed Seal ◽  
The Other ◽  
The Baltic Sea ◽  
Rate Of Development ◽  
Ringed Seals ◽  
Pusa Hispida ◽  
The Baltic ◽  
Bothnian Bay

SUMMARYCorynosoma spp. (Acanthocephala) infection in ringed seals (Pusa hispida) is compared in spring and in autumn in the Bothnian Bay, northern Baltic Sea. The material consists of more than 13400 specimens: 7590 from the intestines of 13 seals captured in April and May 1978 and 5850 from 29 seals captured in October and November.Corynosoma strumosum infection had approximately the same intensity in spring and autumn (mean 76 and 66 individuals/infected seal, maxmum 313 and 324 individuals, respectively). C. semerme specimens, on the other hand, were 37 times more numerous in spring than in autumn (504 compared with 136/infected seal, maximum 1700 and 1230 individuals, respectively). The ratio of C. strumosum to C. semerme was 1:6·3 in spring and 1:2·0 in autumn, as calculated from the total material. Corynosoma infection was more recent on average in spring than in autumn, as judged both from the proportion of males and immature females and from the distribution of C. semerme in the intestine. The feeding habits of the ringed seals and the rate of development of Corynosoma infection are discussed.

Radioactivity in the Baltic Sea: inventories and temporal trends of 137Cs and 90Sr in water and sediments

2009 ◽  
Vol 282 (2) ◽  
pp. 419-425 ◽  
Author(s):  
Tarja Katri Ikäheimonen ◽  
Iisa Outola ◽  
Vesa-Pekka Vartti ◽  
Pekka Kotilainen
Keyword(s):  
Baltic Sea ◽  
Temporal Trends ◽  
The Baltic Sea ◽  
The Baltic

Biotransformation of PCBs in Relation to Phase I and II Xenobiotic-Metabolizing Enzyme Activities in Ringed Seals (Phoca hispida) from Svalbard and the Baltic Sea

2008 ◽  
Vol 42 (23) ◽  
pp. 8952-8958 ◽  
Author(s):  
Heli Routti ◽  
Robert J. Letcher ◽  
Augustine Arukwe ◽  
Bert van Bavel ◽  
Nigel G. Yoccoz ◽  
...  
Keyword(s):  
Phase I ◽  
Baltic Sea ◽  
Enzyme Activities ◽  
Phoca Hispida ◽  
The Baltic Sea ◽  
Ringed Seals ◽  
Metabolizing Enzyme ◽  
The Baltic ◽  
Phase I And Ii

Reprint of: Temporal trends of polyfluoroalkyl compounds (PFCs) in liver tissue of grey seals (Halichoerus grypus) from the Baltic Sea, 1974–2008

Chemosphere ◽  
2011 ◽  
Vol 85 (2) ◽  
pp. 253-261 ◽  
Author(s):  
Johanna Kratzer ◽  
Lutz Ahrens ◽  
Anna Roos ◽  
Britt-Marie Bäcklin ◽  
Ralf Ebinghaus
Keyword(s):  
Baltic Sea ◽  
Liver Tissue ◽  
Temporal Trends ◽  
Halichoerus Grypus ◽  
The Baltic Sea ◽  
Polyfluoroalkyl Compounds ◽  
The Baltic

Polybrominated Diphenyl Ethers and Their Hydroxylated Analogues in Ringed Seals (Phoca hispida) from Svalbard and the Baltic Sea

2009 ◽  
Vol 43 (10) ◽  
pp. 3494-3499 ◽  
Author(s):  
Heli Routti ◽  
Robert J. Letcher ◽  
Shaogang Chu ◽  
Bert van Bavel ◽  
Geir W. Gabrielsen
Keyword(s):  
Baltic Sea ◽  
Polybrominated Diphenyl Ethers ◽  
Phoca Hispida ◽  
The Baltic Sea ◽  
Ringed Seals ◽  
Diphenyl Ethers ◽  
The Baltic

scholarly journals Temporal Trends in Phosphorus Concentrations and Losses from Agricultural Monitoring Sites in Latvia

2021 ◽  
Vol 25 (1) ◽  
pp. 233-242
Author(s):  
Ieva Siksnane ◽  
Ainis Lagzdins
Keyword(s):  
Baltic Sea ◽  
Water Discharge ◽  
Temporal Trends ◽  
Agricultural Runoff ◽  
Trend Test ◽  
The Baltic Sea ◽  
Nitrogen And Phosphorus ◽  
Study Sites ◽  
The Baltic ◽  
Statistical Trends

Abstract The Baltic Sea is the youngest sea on our planet, the environment of the sea is considered to be unique and fragile. It is affected by various human activities resulting in the impairment of water quality. Riverine nutrient (nitrogen and phosphorus) loads are among the major causes of eutrophication of the Baltic Sea. This study examines temporal trends in water discharge, total phosphorus (TP) and orthophosphate-phosphorus (PO4-P) concentrations and losses from three agricultural runoff monitoring sites in Latvia including Berze, Mellupite, and Vienziemite. The annual datasets of TP and PO4-P concentrations and losses were tested for statistical trends using a nonparametric test - the Mann-Kendall trend test. The timeframe of this study was from 1995 until 2018. The results show a large variety of annual mean concentrations and losses of TP and PO4-P in the study period. No statistically significant trend was detected for TP losses. Meanwhile, statistically significant downward trends were observed for TP concentrations in four out of six study sites and in two study sites for PO4-P concentrations.

Comparative endocrine disruptive effects of contaminants in ringed seals (Phoca hispida) from Svalbard and the Baltic Sea

2010 ◽  
Vol 152 (3) ◽  
pp. 306-312 ◽  
Author(s):  
Heli Routti ◽  
Augustine Arukwe ◽  
Bjørn Munro Jenssen ◽  
Robert J. Letcher ◽  
Madeleine Nyman ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Phoca Hispida ◽  
The Baltic Sea ◽  
Ringed Seals ◽  
The Baltic
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