A) Smelling algae B) Finding crayfish C) Seeing fish D) Hearing frogs
A) Fish playing B) Fish trying to dislodge parasites C) Fish signaling to each other D) Fish getting ready to spawn
A) Fish movement B) Wind gust C) Falling leaf D) Submerged rock
A) A deep pool of water B) A large rock in the stream C) A type of algae D) A spawning nest
A) Fine silt B) Clean gravel C) Large boulders D) Organic muck
A) Low oxygen levels B) Pollution C) A healthy food source for fish D) A lack of fish
A) A shallow, slow-moving current B) A straight, unobstructed channel C) Cover such as overhanging vegetation or rocks D) Completely open and sunlit areas
A) Footprints near the stream bank B) Fecal matter near the edge of the stream C) An oily sheen on the water's surface D) Bird activity around the stream
A) Lower water temperature B) Increased pollution C) Lack of predators D) Higher oxygen levels
A) Fish molting B) Spawning behavior C) Predator activity D) Natural shedding
A) Polluted water, no shelter, slow currents B) Muddy water, no food, open space C) Clean water, food, shelter D) Warm water, sunlight, fast currents
A) Successful reproduction and growth B) High pollution levels C) Overcrowding D) Lack of food
A) Anytime equally B) Dawn and dusk C) Midday D) Midnight
A) Too many plants B) Lack of oxygen C) Disturbance of the stream bed, possibly by fish D) Clear and healthy water
A) Kingfisher B) Crow C) Sparrow D) Robin
A) Burying in the sand B) Swimming in schools C) Grazing on algae D) Holding in ambush
A) A deep pool B) A calm area C) A dry section D) A fast-flowing section of the stream
A) Indicates they are ready to reproduce B) Indicates sickness C) Indicates camouflage D) Indicates age
A) A concrete-lined channel B) An undercut bank with roots C) A pool with submerged logs D) A riffle with cobbles
A) Water is polluted B) Fish are absent C) Fish are present D) Birds are feeding
A) Baby fish B) Adult fish C) Type of insect D) Stream algae
A) Refuge from predators and temperature extremes B) Fast-flowing currents for feeding C) Reduced oxygen levels D) Optimal spawning grounds
A) Concrete bank B) Bank with bare soil C) Bank with established vegetation D) Steep, eroding bank
A) Sunlight Levels B) Stream Velocity C) Dissolved Oxygen D) Water Temperature
A) Provides cover and feeding opportunities B) Makes it harder for researchers to study C) Reduces stream flow D) Increases pollution
A) Pollution B) Good water quality C) Low oxygen levels D) High fish population
A) A shallow, fast-flowing area with turbulent water B) A deep, slow-moving area C) A dry streambed D) A stagnant pool
A) Cobble B) Pebbles C) Gravel D) Silt
A) Freshly disturbed gravel beds. B) Leaves in the pools C) Dry stream banks. D) Algae covered rocks.
A) Releases toxins into the stream B) Increases water temperature C) Reduces oxygen levels D) Provides shade and stabilizes banks |