Abstract:
The food habits of yellow perch in Lake Washington were studied over a period
of nine months. Altogether, 549 yellow perch were examined for the stomach
contents. The food consisted mainly of cottids, mysid shrimp, and chironomid
pupae and larvae; the predominant food item being the mysid shrimp.
There was no difference in the food consumed between the different sexes and
between the different size groups. However, a considerable seasonal variation
in the consumption of different food items was seen. Maximum feeding
by perch during the day was observed just before dusk, and the daily ration
was calculated to be about 0.014 grams per gram of body weight.
