European Directory of Marine Environmental Data (EDMED)

Data set information

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General
Data set name

Algal toxins in the Gulf of Finland, the Bothnian Sea and the Baltic Proper

Data holding centreFinnish Environment Institute
CountryFinland  Finland
Time period1994-
OngoingYes
Geographical area

The Gulf of Finland, the Bothnian Sea, Northern Baltic Proper

Observations 
Parameters

Concentration of phycotoxins in biota

Instruments

Observers

Description 
Summary

The data set consists of results on algal toxin concentrations in phytoplankton, fish and molluscs. Cyanobacterial hepatotoxins have been analysed in all matrices, the DSP toxin okadaic acid only from mussels and flounders from 1993 and 1996. Phytoplankton was collected from onboard the R/V Aranda or from motorboats. Fish (flounders, salmons, herrings, cods, sticklebacks) were caught with usual fishing nets by fishermen and molluscs collected by SCUBA divers. The samples were freeze-dried and extracted with either water/methanol/n-butanol or 100% methanol. Analysis of extracts was carried out using high-performance liquid chromatography (HPLC), enzyme-linked immunosorbent assay (ELISA), or combination of these two. Okadaic acid was detected in some of the flounders and blue mussels (1993 and 1996 respectively). Cods, herrings and salmons (all areas) have contained only trace amounts of cyanobacterial hepatotoxins, whereas hepatotoxin concentrations in flounders and blue mussels (both from the Gulf of Finland) have reached 0.4 and 2.2 mg/kg respectively. These two species continuously accumulate hepatotoxins with peak concentrations in August-September. Three-spined sticklebacks have contained ca. 40-170 mg/kg of hepatotoxins. Phytoplankton containing Nodularia spumigena filaments has constantly contained ca. 0.1-10 g/kg of hepatotoxic nodularin.

OriginatorsFinnish Institute of Marine Research (FIMR)
Availability 
OrganisationFinnish Environment Institute
AvailabilityUnknown
ContactHarri Kankaanpaa (senior scientist)
Address

Finnish Environment Institute
Mechelininkatu 34a
Helsinki

00260
Finland

Telephone+358 40 182 3185
Emailharri.kankaanpaa@ymparisto.fi
Administration 
Collating centreFinnish Institute of Marine Research (FIMR)
Local identifier19001047
Global identifier2072
Last revised2009-11-24