For example, zebra mussels can lower the amount of dissolved oxygen in the river through respiration, while plants can both increase the amount of dissolved oxygen in the river through photosynthesis and decrease it during respiration.
What is one effect zebra mussels could have on the river’s ecosystem?
The zebra mussel invasion has had profound effects on the Hudson River ecosystem. The food web changes that the mussel has caused compare in magnitude to disturbances in other aquatic ecosystems caused by toxins, nutrient pollution, or acid rain.
How have zebra mussels affected ecosystem services?
In spite of their small size (often no bigger than a penny) zebra mussels cause far-reaching damage to water structures and native ecosystems. … They also negatively impact aquatic ecosystems by harming native organisms. In huge numbers, they out-compete other filter feeders, starving them.
What is the effect of the zebra mussel on the ecosystems current food web?
Zebra mussels negatively impact ecosystems in many ways. They filter out algae that native species need for food and they attach to–and incapacitate–native mussels. Power plants must also spend millions of dollars removing zebra mussels from clogged water intakes.
How has the invasion of zebra mussels in the Hudson River affected one biotic and abiotic factor in the river ecosystem?
They lower probes into the river to measure abiotic (chemical or physical) factors such as the water’s temperature, oxygen and pH levels, current, speed, and cloudiness of the water (called turbidity). They also collect water and zebra mussels to test back in the lab.
How do zebra mussels affect the economy?
Maintenance of pipes clogged with zebra mussels costs the power industry up to $60 million per year and temporary shutdowns due to insufficient water flow can cost over $5,000 per hour. The total cost to the United States of the zebra mussel invasion is estimated at $3.1 billion over the next ten years.
Why is zebra mussels a problem?
zebra mussels are a huge problem because they harm Native Species. In order for a zebra mussel to live, it must attach itself to a hard object. … Zebra mussels contribute to biomagnification—the toxins that they filter out of the water are concentrated in their bodies, and passed on to their predators.
What is a zebra mussels habitat?
What kind of habitat do they need? Zebra mussels live in still or slow-moving freshwater, and attach themselves to any hard surface under water, natural or man-made, including rocks, submerged wood, boat hulls, buoys, docks, and water intake pipes.
Where is the zebra mussel invading?
The first established population was discovered in 1988 at Lake St. Clair, which straddles the border between the U.S. and Canada and which connects to Lake Erie and Lake Huron. They quickly spread across the Great Lakes, and are now present in the Mississippi and St. Croix Rivers as far north as Stillwater.
Do zebra mussels have predators?
Do zebra mussels have any predators? Zebra mussels do not have many natural predators in North America. But, it has been documented that several species of fish and diving ducks have been known to eat them.
What are 2 positive effects that zebra mussels have on an ecosystem?
Interestingly, invasions by quagga and zebra mussels have been documented as having some positive affects on receiving ecosystems. For example, filtration of water by mussels as they extract food removes particulate matter. This filtration has improved water clarity, and reduced the eutrophication of polluted lakes.
How did the zebra mussel arrive in its new ecosystem?
Zebra Mussels entered the Great Lakes in the late 1980s through ballast water discharged from ships. Since then, they have spread through much of eastern Canada and the United States.
How did the zebra mussel get to Ontario?
Both Zebra and quagga mussels are native to the Black Sea in Eurasia and were introduced to Ontario in the late 1980s via ship ballast. They both have the capability to densely colonize hard and soft surfaces of lake bottoms. … Both mussels can have significant impacts on lake ecosystems!
How do the effects of zebra mussels in the Hudson river relate to stability and change in ecosystems?
In the short-term the zebra mussels caused many factors in the Hudson River ecosystem to change, such as large decreases in the phytoplankton, zooplankton, and native mussel populations. Over the long- term some of the factors that changed seem to be getting more stable and recovering, like the zooplankton population.
How did the zebra mussels affect turbidity in the Hudson river?
Part 1: List at least three abiotic factors that shape the Hudson River ecosystem. … I think the invasion of zebra mussels will decrease the turbidity of the water in the Hudson River, because the zebra mussels are continuously filtering particles from the water column that would otherwise make the water very cloudy.
Why are zebra mussels bad for the Hudson river?
Zebra mussels and quagga mussels cause profound change in the aquatic ecosystems that they invade. They are filter feeders and because they can multiply in abundance they can severely deplete phytoplankton and zooplankton in the water column.