They have no impact on the food chain.

They reduce the food available for native species.

They increase the food available for native species.

They only affect the food chain for a short period of time.

Help native species thrive by providing competition

Outcompete native species for food and habitat, leading to a decline in native populations

Provide more food and habitat for native species, leading to an increase in native populations

Have no impact on native species

By releasing oxygen into the water, which can lead to increased algae growth and decreased water clarity.

By filtering out plankton and other particles, which can lead to clearer water but also disrupt the food chain and ecosystem balance.

By consuming excess nutrients in the water, which can lead to improved water quality and healthier aquatic life.

By producing toxins that can kill off other aquatic species and disrupt the natural balance of the ecosystem.

Increased water quality and improved ecosystem balance

Reduced maintenance costs and positive effects on fisheries and tourism

No impact on human activities

Damage to water infrastructure, increased maintenance costs, and negative effects on fisheries and tourism

Zebra mussels have a moderate reproductive rate, with each female capable of producing 500,000 eggs per year, allowing them to slowly expand their range and have minimal impact on ecosystems.

Zebra mussels have no reproductive capabilities, making them unable to establish large populations and affect native species.

Zebra mussels have a low reproductive rate, with each female capable of producing only 100 eggs per year, limiting their ability to spread and impact ecosystems.

Zebra mussels have a high reproductive rate, with each female capable of producing up to 1 million eggs per year, allowing them to quickly colonize new areas and outcompete native species.

By building nests and blocking the access of native species to resources

By reproducing rapidly and consuming large amounts of phytoplankton

By forming alliances with other invasive species to overpower native species

By emitting toxins that kill off native species

Zebra mussels have no impact on nutrient concentration and harmful algal blooms.

Zebra mussels increase nutrient concentration that promotes harmful algal blooms.

Zebra mussels decrease nutrient concentration that prevents harmful algal blooms.

Zebra mussels consume harmful algal blooms and reduce their spread.

Building more dams

Introducing more predators to the ecosystem

Encouraging the growth of zebra mussel populations

Chemical treatment, physical removal, biological control, and prevention measures

Zebra mussels can disrupt ecosystems by outcompeting native species for food and habitat, leading to declines in biodiversity and changes in nutrient cycling.

Zebra mussels help increase biodiversity in ecosystems

Zebra mussels improve nutrient cycling in ecosystems

Zebra mussels have no impact on ecosystems