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Datat kuvaavat toukkahavaintoja (läsnäolo/poissaolo) ja mallinnettuja toukkien tuotantoalueita Suomen rannikkoalueella. Havaintotiedot on kerätty kalastustutkimuksina vuosina...
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The occurrence of sea-spawning whitefish and vendace larvae was surveyed in the Intersik project in the Gulf of Bothnia at 653 sampling sites in years 2009-2011 and in the VELMU...
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Baltic grey seal censuses are carried out during the annual molting season in May-June. The main haul-out locations are surveyed two or three times during the census period and...