Behavioural and fitness consequences of direct and indirect non-lethal disturbances in a catch-and-release northern pike (Esox lucius) fisheryT. Klefoth, A. Kobler and R. ArlinghausKnowl. Managt. Aquatic Ecosyst., 403 (2011) 11DOI: https://doi.org/10.1051/kmae/2011072