Characteristics of Dissolved Organic Matter in Baltic Coastal Sea Ice : Allochthonous or Autochthonous Origins ?

C O L I N A . S T E D M O N , * , † D A V I D N . T H O M A S , ‡ M A T S G R A N S K O G , § H E R M A N N I K A A R T O K A L L I O , | , ⊥ S T A T H Y S P A P A D I M I T R I O U , ‡ A N D H A R R I K U O S A # Department of Marine Ecology, National Environmental Research Institute, University of Aarhus, Frederiksborgvej 399, 4000 Roskilde, Denmark, Ocean Sciences, College of Natural Sciences, University of Wales-Bangor, Menai Bridge, Anglesey, LL59 5AB, United Kingdom, Arctic Centre, University of Lapland, POB 122, 96101 Rovaniemi, Finland, Finnish Institute of Marine Research, POB 2, 00561 Helsinki, Finland, Department of Biological and Environmental Sciences, POB 56, 00014 University of Helsinki, Finland, and Tvärminne Zoological Station, J.A. Palménin tie 260, 16900 Hanko, Finland