Styela clava

Styela clava is a species of tunicate or sea squirt, a marine invertebrate animal. It is native to the northwest Pacific Ocean but has spread to other parts of the world and is an invasive species in some areas.

Taxonomy

The taxonomic classification of Styela clava is as follows:

• Kingdom: Animalia
• Phylum: Chordata
• Class: Ascidiacea
• Order: Stolidobranchia
• Family: Styelidae
• Genus: Styela
• Species: Styela clava

Description

Styela clava is a solitary tunicate, with a tough, leathery outer covering known as a tunic. It has a club-shaped body, with a large, bulbous lower end and a narrower upper end. The body is covered with small bumps or warts. The color varies from light brown to dark brown or black.

Distribution and habitat

Styela clava is native to the northwest Pacific Ocean, including the coasts of Japan, Korea, and China. It has spread to other parts of the world, including the Atlantic Ocean, the Mediterranean Sea, and the coasts of Australia and New Zealand. It is considered an invasive species in some areas.

Ecology

Styela clava is a filter feeder, extracting plankton and other small particles from the water. It is preyed upon by a variety of marine animals, including fish, crabs, and sea stars.

Impact as an invasive species

As an invasive species, Styela clava can have significant impacts on local ecosystems. It can outcompete native species for space and resources, and can alter the structure of marine communities.

References

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