Preface\nJohn E. Brittain and Reidar Borgstrøm

The Norwegian reference lake ecosystem, Øvre Heimdalsvatn\nJohn E. Brittain and Reidar Borgstrøm

Holocene climate and environmental history of Brurskardstjørni, a lake in the catchment of Øvre Heimdalsvatn, south-central Norway\nGaute Velle, Anne E. Bjune, Jorunn Larsen and H. John B. Birks

The development of new algorithms for remote sensing of snow conditions based on data from the catchment of Øvre Heimdalsvatn and the vicinity\nRune Solberg, Hans Koren, Jostein Amlien, Eirik Malnes, Dagrun Vikhamar Schuler and Nils Kristian Orthe

Long-term trends in water temperature and ice cover in the subalpine lake, Øvre Heimdalsvatn, and nearby lakes and rivers\nÅnund Sigurd Kvambekk and Kjetil Melvold

Between-year variations in the development of crustacean zooplankton in the Norwegian subalpine lake, Øvre Heimdalsvatn\nPetter Larsson, Heidi Hansen and Linda Kristin Bjørnstad Helland

Long-term changes in the littoral benthos of a Norwegian subalpine lake following the introduction of the European minnow (Phoxinus phoxinus)\nFrode Næstad and John E. Brittain

The brown trout (Salmo trutta) in the lake, Øvre Heimdalsvatn: long-term changes in population dynamics due to exploitation and the invasive species, European minnow (Phoxinus phoxinus)\nReidar Borgstrøm, Jon Museth and John E. Brittain

Diet overlap between introduced European minnow (Phoxinus phoxinus) and young brown trout (Salmo trutta) in the lake, Øvre Heimdalsvatn: a result of abundant resources or forced niche overlap?\nJon Museth, Reidar Borgstrøm and John E. Brittain

A long-term study of catchment inputs of 137Cs to a subalpine lake in the form of allochthonous terrestrial plant material\nJohn E. Brittain and Helge E. Bjørnstad

Long-term trends and variation in 137Cs activity concentrations in brown trout (Salmo trutta) from Øvre Heimdalsvatn, a Norwegian subalpine lake\nJohn E. Brittain and Jan Egil Gjerseth

The importance ofsize and growth rate in determining mercury concentrations in European minnow (Phoxinus phoxinus) and brown trout (Salmo trutta) in the subalpine lake, Øvre Heimdalsvatn\nMarthe T. Solhaug Jenssen, Reidar Borgstrøm, Brit Salbu and Bjørn Olav Rosseland