5.0 AQUATIC AND MOSQUITO FINAL PAPER
2026 QUESTIONS WITH ANSWERS GRADED
A+
◉List ways that excessive plant growth can adversely affect the ecology
and uses of a water body . Answer: Harm the ecology of an aquatic
ecosystem, prevent recreational uses, impart tastes or odors to drinking
water supplies, hamper water treatment, adversely affect aesthetics/
property value, and produce toxins
◉Describe the general growth habits of, means of dispersal, and
potential problems caused by emergent aquatic plants . Answer: growth
extending above the water line, spread by an underground root system
and by seed,. They can exclude recreational pursuits and choke out water
ways in high numbers
◉Describe the general growth habits of, means of dispersal, and
potential problems caused by submergent aquatic plants . Answer:
growth occurring below the water line, spread by vegetative root system,
seed and fracturing, Typically these plants do not cause problems,
besides invasive species
◉Describe the general growth habits of, means of dispersal, and
potential problems caused by free floating and rooted floating aquatic
,plants . Answer: occur on the water surface. free floating with short
roots not attached to the bottom, or rooted plants with large floating
leaves.
Free-floating plants are typically problematic along shorelines because
they are windblown. Very difficult to control in large bodies of water and
b/c they reproduce quickly through cloning
Rooted plants reproduce by seed and through roots and rhizomes. These
plants provide valuable cover for fish and are only rarely a nuisance
◉Describe the general growth habits of, means of dispersal, and
potential problems caused by free floating, rooted, and filamentous algae
. Answer: without stems, leaves, or a water- and food‑conducting
vascular system. found floating or attached to submerged surfaces. As
the summer progresses and the weather becomes warmer, these plants
multiply rapidly. Free-floating algae are responsible for many of the
summer "algae blooms.
◉List the advantages of chemical control of aquatic plants and algae .
Answer: longer lasting control than some mechanical methods., May
involve less physical labor, Some herbicides or algicides at specific rates
may be selective, Can be effective tools in the tool box for the control of
invasive and nuisance plants and algae
,◉List the disadvantages of chemical control of aquatic plants and algae
. Answer: Can lead to restrictions on water use, Large treatments can
lead to too much die-offs leading to oxygen depletion and fish kills.,
Sudden release of nutrients into the water can lead to increases in other
problems, Inherent risk to people and nontarget organisms
◉Describe the beneficial roles of Wisconsin's fish populations .
Answer: help maintain balanced communities by feeding on aquatic
plants, insects, and other fish, and by providing a food source for natural
predators
◉List five types of situations in which fish control may be warranted .
Answer: Eliminating undesirable or competing fish from fish rearing
ponds, Removing exotic (nonnative) or other undesirable species from a
body of water, Thinning stunted fish, Eliminating fish from a hatchery
water supply to prevent a potential reservoir of disease-causing
organisms, Treating fish spawning sites to prevent overpopulation of an
individual species
◉Explain why post-treatment management of fish can be important in
the long-term success of a pesticide treatment project . Answer:
removal or reduction of fish populations is the first step in a total
management program, Determine whether eliminating or reducing all or
only a few species would accomplish the long‑range goal. objective will
help determine which pesticide you use, its concentration, and how and
when you apply it..
, ◉what do you need to do before you can conduct any chemical
treatment for fish control . Answer: get approval from the WDNR
◉List the two main reasons why mosquito control may be warranted .
Answer: nuisance control and vector control
◉Describe the four stages of the mosquito life cycle, including the main
structural features of each . Answer: 1. Egg- 1/25 inch long, light color.
most hatch within 3 days
2. Larvae- 4 developmental stages, segmented, breathing hole
3. Pupae- transitional non feeding stage, lasts a few days, suspended at
surface
4. Adults- females feed on blood, adults on nectar. males have bushier,
longer antennae
◉List the types of information you need about a mosquito species before
you can develop an effective program to control it . Answer:
information on breeding sites, # of generation/ year, host preference,
seasonal population levels, flight range, resting areas, if they can
transmit pathogens, whether the mosquitos carry pathogens
◉Describe the habits and life history of Aedes vexans . Answer:
"inland floodwater mosquito,", roadside puddles; woodland pools;
shallow, open, temporary pools; and river bottoms. Adults commonly
migrate 15 to 20 miles or more from breeding sites and can live for 3 to
4 weeks. Eggs can remain dormant for up to 5 years.
2026 QUESTIONS WITH ANSWERS GRADED
A+
◉List ways that excessive plant growth can adversely affect the ecology
and uses of a water body . Answer: Harm the ecology of an aquatic
ecosystem, prevent recreational uses, impart tastes or odors to drinking
water supplies, hamper water treatment, adversely affect aesthetics/
property value, and produce toxins
◉Describe the general growth habits of, means of dispersal, and
potential problems caused by emergent aquatic plants . Answer: growth
extending above the water line, spread by an underground root system
and by seed,. They can exclude recreational pursuits and choke out water
ways in high numbers
◉Describe the general growth habits of, means of dispersal, and
potential problems caused by submergent aquatic plants . Answer:
growth occurring below the water line, spread by vegetative root system,
seed and fracturing, Typically these plants do not cause problems,
besides invasive species
◉Describe the general growth habits of, means of dispersal, and
potential problems caused by free floating and rooted floating aquatic
,plants . Answer: occur on the water surface. free floating with short
roots not attached to the bottom, or rooted plants with large floating
leaves.
Free-floating plants are typically problematic along shorelines because
they are windblown. Very difficult to control in large bodies of water and
b/c they reproduce quickly through cloning
Rooted plants reproduce by seed and through roots and rhizomes. These
plants provide valuable cover for fish and are only rarely a nuisance
◉Describe the general growth habits of, means of dispersal, and
potential problems caused by free floating, rooted, and filamentous algae
. Answer: without stems, leaves, or a water- and food‑conducting
vascular system. found floating or attached to submerged surfaces. As
the summer progresses and the weather becomes warmer, these plants
multiply rapidly. Free-floating algae are responsible for many of the
summer "algae blooms.
◉List the advantages of chemical control of aquatic plants and algae .
Answer: longer lasting control than some mechanical methods., May
involve less physical labor, Some herbicides or algicides at specific rates
may be selective, Can be effective tools in the tool box for the control of
invasive and nuisance plants and algae
,◉List the disadvantages of chemical control of aquatic plants and algae
. Answer: Can lead to restrictions on water use, Large treatments can
lead to too much die-offs leading to oxygen depletion and fish kills.,
Sudden release of nutrients into the water can lead to increases in other
problems, Inherent risk to people and nontarget organisms
◉Describe the beneficial roles of Wisconsin's fish populations .
Answer: help maintain balanced communities by feeding on aquatic
plants, insects, and other fish, and by providing a food source for natural
predators
◉List five types of situations in which fish control may be warranted .
Answer: Eliminating undesirable or competing fish from fish rearing
ponds, Removing exotic (nonnative) or other undesirable species from a
body of water, Thinning stunted fish, Eliminating fish from a hatchery
water supply to prevent a potential reservoir of disease-causing
organisms, Treating fish spawning sites to prevent overpopulation of an
individual species
◉Explain why post-treatment management of fish can be important in
the long-term success of a pesticide treatment project . Answer:
removal or reduction of fish populations is the first step in a total
management program, Determine whether eliminating or reducing all or
only a few species would accomplish the long‑range goal. objective will
help determine which pesticide you use, its concentration, and how and
when you apply it..
, ◉what do you need to do before you can conduct any chemical
treatment for fish control . Answer: get approval from the WDNR
◉List the two main reasons why mosquito control may be warranted .
Answer: nuisance control and vector control
◉Describe the four stages of the mosquito life cycle, including the main
structural features of each . Answer: 1. Egg- 1/25 inch long, light color.
most hatch within 3 days
2. Larvae- 4 developmental stages, segmented, breathing hole
3. Pupae- transitional non feeding stage, lasts a few days, suspended at
surface
4. Adults- females feed on blood, adults on nectar. males have bushier,
longer antennae
◉List the types of information you need about a mosquito species before
you can develop an effective program to control it . Answer:
information on breeding sites, # of generation/ year, host preference,
seasonal population levels, flight range, resting areas, if they can
transmit pathogens, whether the mosquitos carry pathogens
◉Describe the habits and life history of Aedes vexans . Answer:
"inland floodwater mosquito,", roadside puddles; woodland pools;
shallow, open, temporary pools; and river bottoms. Adults commonly
migrate 15 to 20 miles or more from breeding sites and can live for 3 to
4 weeks. Eggs can remain dormant for up to 5 years.
