The proportion of individuals in each treatment group in which damage to the upper jaw was present and absent. Non-hatched and hatched bars indicate northern pike captured and held at 14 ◦ C (mid-April) and 17 ◦ C (late May), respectively.
The proportion of individuals in each treatment group in which damage to theupper jaw was present and absent. Non-hatched and hatched bars indicate northernpike captured and held at 14 ◦ C (mid-April) and 17 ◦ C (late May), respectively.