Development of tools for ecological quality assessment in the Polish marine areas according to the Water Framework Directive. Part IV — preliminary assessment Andrzej OsowieckiElżbieta Łysiak-PastuszakWłodzimierz Krzymiński Original Research Paper 29 June 2012 Pages: 1 - 10
Changes in the body composition of Velvet Scoters (Melanitta fusca) wintering in the Gulf of Gdańsk Włodzimierz MeissnerIzabela FischerSzymon Bzoma Original Research Paper 29 June 2012 Pages: 11 - 16
Three new records for diatoms from the Nišava River and its tributary, the Jerma River (Southern Serbia) Jelena Z. AndrejićJelena KrizmanićMirko Cvijan Original Research Paper 29 June 2012 Pages: 17 - 23
Diet of the twaite shad Alosa fallax (Lacépède, 1803) (Clupeidae) in the Gulf of Gdansk, the Baltic Sea Michał E. SkóraMariusz R. SapotaAnna Pawelec Original Research Paper 29 June 2012 Pages: 24 - 32
Methanogenic microbial communities in sediment from the coastal area of puck bay (Southern Baltic) Andrzej R. ReindlJerzy Bolałek Original Research Paper 29 June 2012 Pages: 33 - 39
Methane flux from sediment into near-bottom water in the coastal area of the Puck Bay (Southern Baltic) Andrzej R. ReindlJerzy Bolałek Original Research Paper 29 June 2012 Pages: 40 - 47
Spherical, magnetic grains of extraterrestrial origin, isolated from Pacific sediments Grzegorz Uścinowicz Original Research Paper 29 June 2012 Pages: 48 - 53
Diversity and distribution of cyanobacterial toxins in the Italian subalpine lacustrine district Leonardo CerasinoNico Salmaso Original Research Paper 29 June 2012 Pages: 54 - 63
Polyphasic characterization of the genus Anabaena from the Gulf of Gdańsk (Southern Baltic Sea). Application of DGGE in taxonomic studies on environmental samples Grzegorz SiedlewiczKarolina ForyckaWaldemar Surosz Original Research Paper 29 June 2012 Pages: 64 - 78
How threatened is the Polish wetland flora? Dominik KopećDorota Michalska-Hejduk Review Paper 29 June 2012 Pages: 79 - 89
Long-term changes in the phytoplankton of Lake Charzykowskie Marzena WiśniewskaMarta Luścińska Review Paper 29 June 2012 Pages: 90 - 98
Nematodes found in the European anchovy (Engraulis encrasicolus), a rare visitor to the Baltic Sea Marek KulikowskiLeszek RolbieckiJerzy Rokicki Short Communication 29 June 2012 Pages: 99 - 102