RASKEMETALLIDE MÄÄRAMINE AHVENAS
Because of data about Baltic herring used also for characterization of Baltic Sea
(specially high sea), the indicator organism for coastal region is practically
nonexistent.
In Estonia for monitoring the coastal sea perch with sedentary habits could be used as
indicator organism. In HELCOM COMBINE methodics namely perch is brought out
as coastal sea indicator species. /40/
One purpose for monitoring programme of priority hazardous substances is
scientifically legitimated valuation for pollution level in Estonian water bodies.
Perch meat contains very few fats. 49% of gross weight is eatable and metabolism of
meat is 68% in human organism. /29/ Results indicated, that by content of heavy
metals perch meat is absolutely harmless for eating.
In conclusion, contents of heavy metals are not contrary to the ratio prescribed by EU.
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Kasutatud kirjandus
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