| |
 |
 |
In
this research, I am using the rainbow trout, Oncorhynchus
mykiss, in an attempt to determine if they expend
more energy in capturing elusive versus non-elusive prey;
a test of the Optimal Foraging Theory. The Optimal Foraging
Theory is defined as the maximum possible energy return
under different conditions (i.e. using less energy to
catch a stationary prey item and more energy to catch
an active prey item). |
| |
|
Rainbow trout were obtained from Cold Spring Harbor fish
hatchery. Individuals were maintained in a 46cm x 183cm
experimental arena. In this study, the individuals are
then fed every 48 hours using immobile house crickets
and mobile minnows. Feeding sequences are videotaped using
a NAC HSV-500, recording at 250 frames s-1, at a distance
of 3m from the tank. Two filming lights are used to illuminate
the ventral and lateral views during videotaping. |
|
|
