Aquatic & Mosquito- Commercial
Category 5.0
List the roles plants play in a healthy aquatic ecosystem. - ✔✔ correct answer -Producing oxygen for
other organisms
-Preventing shoreline erosion
-Lessening excess nutrients
-Stabilizing the lake bottom
-Providing food/habitat
List ways that excessive plant growth can adversely affect the ecology and uses of a water body. - ✔✔
correct answer -Harms the ecology
-Prevents recreational water use
-Makes drinking water smell/taste bad
-Hampers water treatment operations
-Produces toxins that are harmful to drink
Describe the general growth habits of, means of dispersal, and potential problems caused by emergent
aquatic plants. - ✔✔ correct answer Growth habits: arrowhead, cattail
Means of dispersal: underground roots
Problems: purple loosestrife
Describe the general growth habits of, means of dispersal, and potential problems caused by submerged
aquatic plants (both pond weeds and plants with whorled leaves). - ✔✔ correct answer Growth habits:
curly pondweed vs. coontail
Means of dispersal: runners vs. wind/water
Problems: N/A vs. restricts boating and swimming
, Aquatic & Mosquito- Commercial
Category 5.0
Describe the general growth habits of, means of dispersal, and potential problems caused by free-
floating and rooted floating-leaved aquatic plants. - ✔✔ correct answer Growth habits: duckweed vs.
pond lily
Means of dispersal: wind vs. roots
Problems: hard to get rid of vs. N/A
Describe the general growth habits of, means of dispersal, and potential problems caused by free-
floating, filamentous, and "rooted" algae. - ✔✔ correct answer Free-floating: blue-green algae, growth
limited by phosphates, release toxic compounds
Filamentous: anchor themselves to rocks, weeds, etc., long and stringy
Rooted: rooted to bottom with bristly stems and branches, Chara and Nitella
List the advantages and disadvantages of chemical control of aquatic plants and algae. - ✔✔ correct
answer (+) Longer lasting control than mechanical
(+) Less physical labor
(+) Costs less
(+) Selective chemical options
(-) Restrictions on water use
(-) Oxygen depletion, sudden release of nutrients
(-) Risk to people, nontarget organisms
Describe the beneficial roles of Wisconsin's fish populations. - ✔✔ correct answer -Fishing for food and
sport
-Farms/hatcheries for food, feed, fertilizer, bait, and release into state waters
Category 5.0
List the roles plants play in a healthy aquatic ecosystem. - ✔✔ correct answer -Producing oxygen for
other organisms
-Preventing shoreline erosion
-Lessening excess nutrients
-Stabilizing the lake bottom
-Providing food/habitat
List ways that excessive plant growth can adversely affect the ecology and uses of a water body. - ✔✔
correct answer -Harms the ecology
-Prevents recreational water use
-Makes drinking water smell/taste bad
-Hampers water treatment operations
-Produces toxins that are harmful to drink
Describe the general growth habits of, means of dispersal, and potential problems caused by emergent
aquatic plants. - ✔✔ correct answer Growth habits: arrowhead, cattail
Means of dispersal: underground roots
Problems: purple loosestrife
Describe the general growth habits of, means of dispersal, and potential problems caused by submerged
aquatic plants (both pond weeds and plants with whorled leaves). - ✔✔ correct answer Growth habits:
curly pondweed vs. coontail
Means of dispersal: runners vs. wind/water
Problems: N/A vs. restricts boating and swimming
, Aquatic & Mosquito- Commercial
Category 5.0
Describe the general growth habits of, means of dispersal, and potential problems caused by free-
floating and rooted floating-leaved aquatic plants. - ✔✔ correct answer Growth habits: duckweed vs.
pond lily
Means of dispersal: wind vs. roots
Problems: hard to get rid of vs. N/A
Describe the general growth habits of, means of dispersal, and potential problems caused by free-
floating, filamentous, and "rooted" algae. - ✔✔ correct answer Free-floating: blue-green algae, growth
limited by phosphates, release toxic compounds
Filamentous: anchor themselves to rocks, weeds, etc., long and stringy
Rooted: rooted to bottom with bristly stems and branches, Chara and Nitella
List the advantages and disadvantages of chemical control of aquatic plants and algae. - ✔✔ correct
answer (+) Longer lasting control than mechanical
(+) Less physical labor
(+) Costs less
(+) Selective chemical options
(-) Restrictions on water use
(-) Oxygen depletion, sudden release of nutrients
(-) Risk to people, nontarget organisms
Describe the beneficial roles of Wisconsin's fish populations. - ✔✔ correct answer -Fishing for food and
sport
-Farms/hatcheries for food, feed, fertilizer, bait, and release into state waters
