A quantitative assessment of the impact of goosander, Mergus merganser,on salmonid populations in two upland river systems in England and Wales
This source preferred by Robert Britton
Authors: Wilson, B.R., Davies, J.M., Holden, T., Feltham, M.J., Harvey, J.P. and Britton, J.R.
Editors: Cowx, I.G.
Publisher: Blackwell Scientific Publications
Place of Publication: Oxford