Pot Worms

Pot worms are a group of normally colorless terrestrial worms in the family enchytraeidae. The family is made up of microdrile oligochaetes living mainly in highly organic terrestrial environments. The term microdrile oligocates refers to their small size in combination with their resemblance to earthworms. Like earthworms, pot worms are in the phylum Annelida.

Taxonomy

Pot Worm Taxonomy

Kingdom	Phylum	Class	Order	Family
Animalia	Annelida	Clitellata	Tubificida	Enchitraeidae

Appearance

Image of a pot worm in soil. [2]

Pot worms, while similar in appearance to earthworms, are slim, colorless, and small. Like earthworms, they are segmented annelids. However, they only grow about 5 to 15 mm in length. [3] While they are visible to the naked eye, they are best seen under a microscope due to their small size.

Diet

Similar to megadrile oligochaetes, earthworms, pot worms consume leafy matter and detritus. However, they gain most of their nutrients from consuming fungal hyphae and bacterial material along with excretions from other soil organisms. [1] This occurs because their smaller size makes it harder for them to consume detritus in the same way as earthworms are able to. Small fungal and bacterial materials are more easily consumed by these small annelids.

Ecosystem Impacts

Despite their small size, pot worms contribute to the alteration of soil structures. They serve to alter soil porosity due to burrowing activities. [1] They also produce worm castings mucus secretions which greatly improve the soil quality by influencing the bacterial and mineral content surrounding their burrows. This areas surrounding their burrows is referred to as the driloshpere.

References

Citations

1. “All about Enchytraeidae: White Pot Worms.” A Chaos of Delight , https://www.chaosofdelight.org/enchytraeidae-1.
2. “5 Different Types of Worms in Potted Plants.” India Gardening , 30 Mar. 2021, https://indiagardening.com/lists/types-of-worms-in-potted-plants/.
3. Loynachan, Tom. “Multimedia Gallery | Soil Science Society of America.” Soil Science Society of America , Iowa State University, https://www.soils.org/media-gallery/view/60.