Feeding Behavior

Trout tend to feed in three different places in the tank:

1.   Surface:  These trout are a decent size (1.5-2inches) and seem to be more aggressive.  One looks like he had a few “fish dinners”.
2.   Subsurface: Trout eating food as it sinks/drifts to the bottom (our smaller fish who like to stay close to cover)
3.   Bottom:  Some of our trout roam the bottom and feed on food nestled between the gravel.  Again, these trout tend to be smaller and stay close to cover. 
 
Making the connection:

Student observation: feeding behaviors of brook trout in the aquarium and in the stream
o   Compare to feeding behaviors in the stream: types of insects/fish they would be eating, where they eat and why
o   Compare to recreational fishing techniques: type of equipment (rods, reels) and tackle used (flies, bait, spinners)
 
Example food comparison:
o   Surface = terrestrials (beetles, ants, inch worms) adult = mayflies, stoneflies, caddis flies, midges;
o   Subsurface = nymphs/larvae (stone fly, may fly, caddis fly, crane fly); crest bugs; freshwater
   shrimp; smaller fish;
o   Bottom =   nymphs/larvae; sculpins; crest bugs; freshwater shrimp

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