Red nematodes and earthworms are the same organism, also known as silk earthworms, red silkworms, red filarias, etc., which belong to the collective name of the animal kingdom, link animal phylum, oligochaete and aquatic oligochaete in biological classification. They also differ greatly in terms of living habits, anatomical structure and ecological roles.
Red nematodes or water earthworms are common freshwater organisms found in rivers, lakes, and other bodies of water. Earthworms are invertebrates belonging to the oligochaete order of the phylum of link animals, and common species include orthotremor, Chinese trembling worm, Huofu water silkworm, Su's tail gill worm, etc. In appearance, erythroworms or water earthworms are red or brown in color, have many links, have a linear body, usually feed on debris in water, and are important decomposers.
Earthworms are small , similar to terrestrial earthworms , and their bodies are composed of many body segments , usually with bundles of bristles , and some with only a single bristle. Earthworms generally do not have specialized respiratory organs, blood is red or yellow, do not have red blood cells, and are dissolved in plasma with hemoglobin.
Water earthworms mostly live in the gutter sludge that discharges sewage or wastewater, dense on the surface of the sludge, one end is fixed in the sludge, and the other end extends the sludge to vibrate in the water. Earthworms are creatures with high nutritional value, which can be used as food for ornamental fish such as goldfish and koi, as well as the main food for eel seedlings and young turtles. In some areas, it is even used for fishing. However, they can also carry large amounts of bacteria that can cause disease if fed directly to fish without sterilization.
Red worms or water earthworms, as a freshwater organism, play an important role in ecosystems. They are prey for many fish and other aquatic life, and are important maintainers of water cleanliness. Below I will continue to explore the characteristics and role of red nematodes or water earthworms in other aspects.
First of all, red nematodes or water earthworms have some special features in terms of living habits. They usually live in slow-flowing or still water, preferring to inhabit waters rich in organic matter, such as the edges of rivers, the bottom of lakes, ditches in agricultural fields, etc. In water with a suitable temperature, they can multiply in large numbers, forming a dense biome, which plays an important role in maintaining the ecological balance of the water body.
Secondly, red nematodes or earthworms also have some anatomical characteristics. Their bodies are linear and divided into ring-shaped links, each covered by a layer of keratinocytes that help them maintain the body's water balance in different water environments. In addition, they have a pair of hooked antennae at the front end of their bodies and a long tail at the back end, features that allow them to swim or contract freely in the water.
In addition, red worms or water earthworms have some special functions and functions. For example, they feed on debris in the water, which can help keep the water clean. At the same time, they can also serve as indicator organisms for water pollution. If a body of water is polluted, the number and species of red worms or earthworms are affected, and their appearance or disappearance can reflect the degree of pollution of the water body.
In addition, red worms or water earthworms can also be used as food for many fish and other aquatic organisms in water bodies. For example, many aquarium fish like to eat red worms or water earthworms, so they are often used as food for aquarium fish. In addition, red worms or water earthworms are also one of the commonly used baits when fishing.
In short, red nematodes and earthworms are different names for the same organism, and they play an important role in the ecosystem. Understanding their characteristics, roles and habits can help us better protect and utilize these important freshwater organisms.