Gulf of Finland’s coastal waters same as last year: Oxygen on deep-sea floors deteriorating

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The oxygen situation on deep-sea floors, in open seas in the Gulf of Finland, has deteriorated compared to last year. Results obtained during an expedition by the research vessel Aranda in early summer shows an increase in salinity stratification in the Gulf of Finland, which has weakened the oxygen situation. At these sites, zoobenthic communities had also declined compared to last year. During the expedition in August, water layers close to the sea floor were found to be anoxic at these same sites. Hydrogen sulphide was found at sites on the Estonian side of the Gulf....
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