<style face="normal" font="default" size="100%">Harlequin ducks Histrionicus histrionicus distribution and stonefly nymph availability in the Maligne Valley watershed - a preliminary study</style>

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<style face="normal" font="default" size="100%">Harlequin ducks Histrionicus histrionicus distribution and stonefly nymph availability in the Maligne Valley watershed - a preliminary study</style>