A) Finding crayfish B) Seeing fish C) Hearing frogs D) Smelling algae
A) Fish trying to dislodge parasites B) Fish getting ready to spawn C) Fish playing D) Fish signaling to each other
A) Wind gust B) Submerged rock C) Falling leaf D) Fish movement
A) A type of algae B) A deep pool of water C) A large rock in the stream D) A spawning nest
A) Fine silt B) Organic muck C) Clean gravel D) Large boulders
A) Pollution B) A healthy food source for fish C) A lack of fish D) Low oxygen levels
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) Bird activity around the stream C) An oily sheen on the water's surface D) Fecal matter near the edge of the stream
A) Higher oxygen levels B) Lower water temperature C) Lack of predators D) Increased pollution
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) Warm water, sunlight, fast currents D) Clean water, food, shelter
A) Successful reproduction and growth B) Lack of food C) Overcrowding D) High pollution levels
A) Midday B) Midnight C) Dawn and dusk D) Anytime equally
A) Disturbance of the stream bed, possibly by fish B) Too many plants C) Lack of oxygen D) Clear and healthy water
A) Kingfisher B) Crow C) Robin D) Sparrow
A) Grazing on algae B) Burying in the sand C) Holding in ambush D) Swimming in schools
A) A dry section B) A deep pool C) A fast-flowing section of the stream D) A calm area
A) Indicates age B) Indicates camouflage C) Indicates sickness D) Indicates they are ready to reproduce
A) A pool with submerged logs B) An undercut bank with roots C) A riffle with cobbles D) A concrete-lined channel
A) Water is polluted B) Fish are absent C) Fish are present D) Birds are feeding
A) Type of insect B) Adult fish C) Baby fish D) Stream algae
A) Optimal spawning grounds B) Fast-flowing currents for feeding C) Refuge from predators and temperature extremes D) Reduced oxygen levels
A) Bank with bare soil B) Bank with established vegetation C) Concrete bank D) Steep, eroding bank
A) Water Temperature B) Dissolved Oxygen C) Sunlight Levels D) Stream Velocity
A) Increases pollution B) Reduces stream flow C) Provides cover and feeding opportunities D) Makes it harder for researchers to study
A) High fish population B) Low oxygen levels C) Good water quality D) Pollution
A) A deep, slow-moving area B) A stagnant pool C) A shallow, fast-flowing area with turbulent water D) A dry streambed
A) Cobble B) Silt C) Gravel D) Pebbles
A) Algae covered rocks. B) Freshly disturbed gravel beds. C) Dry stream banks. D) Leaves in the pools
A) Releases toxins into the stream B) Reduces oxygen levels C) Increases water temperature D) Provides shade and stabilizes banks |