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Tetrapygus niger

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description Tetrapygus niger Overview

Tetrapygus niger is a species of sea urchin in the order Camarodonta, found in the eastern Pacific Ocean along the western coast of South America. It is distributed from Peru to Chile, where it inhabits shallow, rocky intertidal and subtidal zones. The species is black in color and is commonly known as the black sea urchin, or erizo negro in Spanish. It is a regular sea urchin that grazes on algae and is harvested commercially in Chile for its edible gonads.

help Tetrapygus niger FAQ

Where does the Tetrapygus niger sea urchin live?

Tetrapygus niger is a species of sea urchin distributed heavily along the coasts of South America. They thrive in the Pacific coastal waters off countries like Chile and Peru.

What ecological role does the Tetrapygus niger play?

This black sea urchin plays a vital ecological role in its native habitat by grazing on algae. This grazing helps maintain the balance of the rocky reef ecosystems.

What color is the Tetrapygus niger sea urchin?

As its common name suggests, the urchin is distinctly black. This dark coloration helps distinguish it from many other shallow-water urchin species.

Is the Tetrapygus niger common in its habitat?

Yes, the Tetrapygus niger is considered a very common species within its range. Populations are heavily concentrated along the western coastline of South America.

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