description Strongylocentrotus droebachiensis Overview
Strongylocentrotus droebachiensis, commonly called the green sea urchin, is an extant species of sea urchin belonging to the Strongylocentrotidae family. It inhabits Arctic and subarctic waters. This urchin is notable for its resilience in cold environments and its edible nature. Researchers utilize it in biomedical studies due to its unique physiological adaptations to extreme temperatures.
help Strongylocentrotus droebachiensis FAQ
Why is Strongylocentrotus droebachiensis called the green sea urchin?
Its test and spines commonly have a greenish color, although individuals can also appear brownish or purple-toned. The species is widely known as the green sea urchin in North Atlantic and Arctic waters.
What does the green sea urchin eat?
It grazes heavily on kelp and other algae using a five-toothed feeding structure called Aristotle's lantern. Dense populations can remove kelp and help create rocky areas known as urchin barrens.
Where can Strongylocentrotus droebachiensis be found?
The species occupies cold northern waters, including parts of the North Atlantic and Arctic. It lives on rocky seabeds from shallow coastal zones into deeper water.
Is the green sea urchin harvested for food?
Yes. Its edible gonads are sold as sea urchin roe and have supported fisheries in places such as Maine and Atlantic Canada.
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