Estimation of export production in the coastal Baltic Sea: effect of resuspension and microbial decomposition on sedimentation measurements

Hydrobiologia ◽  
1995 ◽  
Vol 316 (3) ◽  
pp. 211-224 ◽  
Author(s):  
Anna-Stiina Heiskanen ◽  
Juha-Markku Lepp�nen
Keyword(s):  
Baltic Sea ◽  
Microbial Decomposition ◽  
Export Production

scholarly journals Erosion Induced Heterogeneity of Soil Organic Matter in Catenae from the Baltic Sea Catchment

Soil Systems ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 42 ◽  
Author(s):  
Gerald Jandl ◽  
Christel Baum ◽  
Goswin Heckrath ◽  
Mogens H. Greve ◽  
Arno Kanal ◽  
...  
Keyword(s):  
Organic Matter ◽  
Chemical Composition ◽  
Soil Organic Matter ◽  
Baltic Sea ◽  
The Baltic Sea ◽  
Microbial Decomposition ◽  
Organic C ◽  
C Stocks ◽  
Arable Fields ◽  
The Baltic

Soil organic matter (SOM) is unevenly distributed in arable fields in undulated landscapes, but the chemical composition resulting from their turnover, transport and deposition processes is insufficiently known. Therefore, we aimed at disclosing the molecular-chemical composition of SOM in four different catenae at shoulderslope, backslope and footslope positions in arable fields in the Baltic Sea catchment, Europe. The backslope positions always had the lowest organic C-contents (Corg) (1.6…11.8 g·kg−1) and C-stocks (3.8…8.5 kg·m−2) compared to the shoulderslopes and footslopes (1.7…17.7 g·Corg·kg−1, 5.4…15 kg·Corg·m−2). In the SOM-poor backslope positions, the organic matter was characterized by relatively high proportions of carbohydrates, phenols + lignin monomers, alkylaromatic compounds, N-compounds and amides, indicating intensive microbial decomposition. By contrast, the footslopes had the largest Corg-contents (9.3…16.5 g·kg−1) and C-stocks (8.9…15 kg·m−2) in the catenae and particular enrichments in lipids, lignin dimers, sterols and free fatty acids. These relatively stabile SOM compound classes are interpreted as leftovers from erosive downslope transport and concurrent microbial decomposition, e.g., they are pronounced at backslope positions, followed by restricted microbial decomposition. This heterogeneous SOM distribution calls for an adapted soil management that reduces erosion and places amendments to field areas, such as the shoulderslope and backslope.

Temporal and spatial sedimentation rate variabilities in the eastern Gotland Basin, the Baltic Sea

Boreas ◽  
2002 ◽  
Vol 31 (1) ◽  
pp. 65-74 ◽  
Author(s):  
Christian Christiansen ◽  
Helmar Kunzendorf ◽  
Kay-Christian Emeis ◽  
Rudolf Endler ◽  
Ulrich Struck ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Sedimentation Rate ◽  
The Baltic Sea ◽  
Gotland Basin ◽  
Temporal And Spatial ◽  
The Baltic

Russian Oil: Production and Exports

2003 ◽  
pp. 136-146
Author(s):  
K. Liuhto
Keyword(s):  
Baltic Sea ◽  
Statistical Data ◽  
Oil Production ◽  
The Baltic Sea ◽  
North West ◽  
The North ◽  
Oil Transportation ◽  
Sea Ports ◽  
The Baltic

Statistical data on reserves, production and exports of Russian oil are provided in the article. The author pays special attention to the expansion of opportunities of sea oil transportation by construction of new oil terminals in the North-West of the country and first of all the largest terminal in Murmansk. In his opinion, one of the main problems in this sphere is prevention of ecological accidents in the process of oil transportation through the Baltic sea ports.

Response and recovery of Baltic Sea blue mussels from exposure to pharmaceuticals

2015 ◽  
Vol 526 ◽  
pp. 89-100 ◽  
Author(s):  
L Kumblad ◽  
H Oskarsson ◽  
C Palmer ◽  
AKE Wiklund
Keyword(s):  
Baltic Sea ◽  
Blue Mussels ◽  
Response And Recovery

Trophic decoupling of mesozooplankton production and the pelagic planktivores sprat Sprattus sprattus and herring Clupea harengus in the Central Baltic Sea

2018 ◽  
Vol 592 ◽  
pp. 181-196 ◽  
Author(s):  
M Bernreuther ◽  
J Peters ◽  
C Möllmann ◽  
J Renz ◽  
J Dutz ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Clupea Harengus ◽  
Sprattus Sprattus

Seasonal occurrence and hatching of calanoid eggs in sediments of the northern Baltic Sea

1998 ◽  
Vol 171 ◽  
pp. 133-143 ◽  
Author(s):  
T Katajisto ◽  
M Viitasalo ◽  
M Koski
Keyword(s):  
Baltic Sea ◽  
Seasonal Occurrence
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