Wisconsin fish predator
What is Northern Pike or Musky?
First sign hatchery technicians can see that fish are developing in eggs
What are eyed-up eggs?
Fin on top of fish contains spines
What is dorsal fin?
Three of six fish senses
What is sight, touch, smell, taste, hearing, lateral line?
Fish blends in with its surroundings
What is camouflage?
Provides energy to plants and plankton to grow
What is the sun?
Newly hatched fish
What is sac fry?
Organ that converts oxygen in water to allow fish to breathe
Three of five places a bullhead has taste buds
What is tongue, lips, skin, barbels, tail?
Body shape of a bluegill
What is pan-shaped or flat and round?
Food for small fish like minnows
What is Plankton?
Fish that eat other animals
What is a predator?
Organ in bony fish that allow them to control their depth in water
What is swim bladder?
Salmon use this keen sense to find their way to home streams to spawn
What is sense of smell?
Cold, clear, fast-moving gravel bottom streams
What is ideal habitat for trout to spawn?
Decomposes dead fish and plants
What is Bacteria?
Place where trout eggs are laid and fertilized in rocky gravel stream bed
What is a redd?
Used to determine the age of a fish
What are scales?
Fish can't see in this direction
What is directly behind?
Parent bass that guards nest when eggs are laid
Aquatic invasive species that consume phytoplankton
What are zebra mussels? quagga mussels
Young fish during critical stage before becoming adult when they imprint into the water
What is a smolt?
Fins located behind the gills that help steer fish from side to side
What are pectoral fins?
Mid-line on fish that have fluid filled tubes that sense predators approaching from side
What is the lateral line?
Limiting factors that may cause decline in natural egg reproduction and fish survival
What is warm water? Pollution, Chemical runoff,