What is nematod?

A Nematode is a roundworm, an unsegmented worm with a cylindrical body pointed at both ends. Nematodes are also called roundworms, anguillulas, and threadworms. They range in size from microscopic to long and robust, with some exceeding a meter in length. Nematodes form one of the largest phyla of animals in terms of species diversity.

Nematodes are found in a wide variety of habitats, from the depths of the ocean to the tops of mountains, and from polar regions to deserts. The most numerous nematode species are free-living, inhabiting soil or water. However, some nematodes are parasites of plants, animals, fungi, or bacteria. Parasitic nematodes can have both positive and negative effects on their hosts. Some parasitic nematodes can cause diseases in humans and other animals, while others can be beneficial by helping to control insect populations.

Nematodes are important members of the soil ecosystem, where they play a crucial role in nutrient recycling. Nematodes are decomposers that feed on organic matter, breaking it down and releasing nutrients back into the soil. Nematodes also contribute to soil aeration and help to improve soil structure. Nematodes are also food sources for other organisms, such as birds, insects, and fish.