Do Ducks Eat Duckweed? A Practical Guide to Duckweed and Waterfowl Ecology

Introduction --- The Curious Case of Ducks and Duckweed

If you have ever walked past a pond in July and thought someone spilled a big bucket of green stuff all over the surface you have probably seen duckweed. To people it just looks like a disgusting pond water but duckweed is actually a really interesting part of the world around us. And if you have ever watched ducks gliding over that pond, you might wonder: "do ducks eat duckweed?"

In this article, we will dive into what duckweed plant is, how ducks interact with it, and why this tiny plant matters so much in pond ecosystems.

What Is Duckweed?

What is duckweed exactly?

While Duckweed looks like a layer of slime, it is actually a very small plant with special tiny tubes inside. Duckweed plants do not have stems or large leaves like other plants. Instead duckweed has parts called fronds that are, about the size of a pencil eraser. These fronds float on the water.

Do Ducks Eat Duckweed?

Now back to the question posed at the beginning, 'Do Ducks eat Duckweed?' Yes, they do and you should know that by just looking at the name, duckweed. They consume duckweed because it is easy to access and digest.

Ecological Benefits of Duckweed in Ponds

Duckweed is not just food for Ducks. It does a lot of things for the water. For instance, duckweed plant acts like a filter that helps clean the water. Duckweed is really good at removing nitrates and phosphates from the water. Furthermore, the thick green layer of duckweed plant gives shade to the water and keeps the water cool for fish. Also, duckweed makes it hard for bad algae to grow because it takes all the sunlight that the bad Algae needs to grow before it gets to it.

When Duckweed Becomes a Problem

Despite its benefits, duckweed plant can sometimes become a problem. It grows quickly and can double its size in two days. Once the plant covers the pond, it stops oxygen from getting into the water. And at night the plants start to use up the oxygen in the water thus suffocating the fishes under it.

Aside from that, when it grows fast, It would not let any light get through to the plants that are under the water and this could kill all the plants in the water.

Duckweed also becomes a problem when it starts to make the water smell.

Natural Ways to Manage Duckweed Growth

Managing a duckweed plant infestation is not always about using chemicals.

Sometimes it is as simple as moving the water around making it harder for it to settle and spread. So things like fountains or aerators are really good at moving the duckweed to the edges of the water. Thus making it a lot easier to rake out the duckweed. Note that the duckweed that you rake out can even be used to make a good garden fertilizer as it is very rich in nitrogen. Additionally, planting aquatic vegetation to compete with duckweed for nutrients limits its growth.

Should You Remove All Duckweed?

- You do not have to remove all the duckweed. The duckweed is actually good for the pond because it helps to keep the water clean. Most people who take care of ponds think it is an idea to leave about 20% to 25% of the pond covered with duckweed. This gives the ducks some plants to eat.

- However if there is much duckweed it can be bad for the pond. So you should only remove some of the duckweed if it is really necessary. This way you can still have some of the duckweed to help keep the water clean but not so much that it hurts the pond.

- Encouraging waterfowl like ducks to feed on duckweed is another method to keep the plant's population in check.

- Most importantly, introducing pond aerators or water circulation systems from Poposoap can reduce duckweed plants by disturbing the water surface, making it harder for the plants to settle and spread.

- Additionally, planting aquatic vegetations would make the vegetations compete with duckweed for nutrients, naturally limiting its growth.

Conclusion --- Ducks and Duckweed: A Natural Partnership

You have come to see in the course of this article that Duckweed is really good for a pond as it has many nutrients and helps waterfowl by giving them a lot of protein. In addition, duckweed also keeps the pond water clean. So, while it could become a problem, it can be controlled by just keeping the water moving.

If you're managing a pond and want to maintain a balanced ecosystem with healthy duckweed levels, then explore Solar Pond Aerators and Water Circulation Systems from Poposoap here.

READ MORE: How to Keep a Duck Pond Clean