J. Pirhonen et al., DIFFERENCES IN FEEDING BETWEEN 1+ AND 2+ HATCHERY BROWN TROUT EXPOSEDTO LOW WATER TEMPERATURE, Journal of Fish Biology, 50(3), 1997, pp. 678-681
Both 1+ and 2+ brown trout fed during the day and at night when held i
n hatchery tanks at low temperatures (2.7-3 degrees C). Over 60% of th
e daily ration was consumed during daylight hours, but there were diff
erences in feeding behaviour between fish of the two age groups: the 1
+ trout had greater feeding activity at night than the 2+ fish. (C) 19
97 The Fisheries Society of the British Isles.