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Use of Mechanistic Information in Risk Assessment - Proceedings of the 1993 EUROTOX Congress Meeting Held in Uppsala, Sweden, June 30-July 3, 1993 (Paperback, Softcover reprint of the original 1st ed. 1994)
Loot Price: R2,796
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Use of Mechanistic Information in Risk Assessment - Proceedings of the 1993 EUROTOX Congress Meeting Held in Uppsala, Sweden, June 30-July 3, 1993 (Paperback, Softcover reprint of the original 1st ed. 1994)
Series: Archives of Toxicology, 16
Expected to ship within 10 - 15 working days
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M. Pliftski Institute of Oceanography, GdaJisk University 46
Pilsudskiego Av. 81-378 Gdynia, Poland 2 The Baltic Sea with
366,000 km is only 0. 1% of the world's oceans but nevertheless,
unique in many ways. The Baltic Sea is the largest area of brackish
water in the world. As a formation of nature, it is a sea that in
many ways resembles a lake. This makes its flora and fauna
interesting and well adapted to the brackish water environment. The
recent stage of biocoenosis composition is influenced by several
features. Historically, during the last glaciation, when the Baltic
was sometimes a huge marine bay and sometimes a large, freshwater
lake, several ecosystems developed and were successively replaced.
The flora and fauna composition of those previous biocoenosis was
discovered from the geological layers corresponding to the Yoldic
Sea, the Ancylus Lake and the Littorina Sea periods. Recently the
marine influence has come from the North Sea water inflow, which
greatly affects the salinity of the deep water. The freshwater
influence comes from the fluvial water which gives the surface
layer a lower salinity value. Salinity in the Baltic regions varies
greatly - Gulf of Bothnia 2-4%0, the central Baltic proper 7-13%0,
the Kattegat 15-300/00 in the surface water and 32- 34%0 in the
bottom water, the Skagerrak 20-300/00 in the surface and 32-35%0 in
the bottom water.
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