| mortality associated with renal and intestinal coccidiosis in juvenile eiders in iceland. | the cause of unusual mortality observed in late june 1993 among hundreds of eider-ducklings (somateria mollissima) originating from a colony of approximately 600 breeding eider ducks at bildudalur, west-iceland, was studied. the mortality occurred two weeks after a large-scale washing of gravel was initiated in a river-bed close to the colony. as a consequence marked environmental changes occurred in the area when a mud-layer gradually accumulated on the sea-bed around the colony. necropsies, ba ... | 1997 | 9802087 |