description Arbacia punctulata Overview
Arbacia punctulata, commonly known as the Atlantic purple sea urchin, is a marine echinoderm native to the western Atlantic Ocean and the Gulf of Mexico. Described by Jean-Baptiste Lamarck in 1816, the species features a spherical, purple test covered in sharp, defensive spines used to navigate the ocean floor. It is widely utilized in biological research as a model organism, particularly in the fields of embryology and fertilization. The sea urchin's large, easily observable gametes and synchronous embryonic development make it highly valuable for cell biology studies.
help Arbacia punctulata FAQ
Where is Arbacia punctulata found?
Arbacia punctulata is native to the western Atlantic Ocean and the Gulf of Mexico. It is commonly called the Atlantic purple sea urchin or purple-spined sea urchin.
Why is Arbacia punctulata important to marine researchers?
It is used as a model species in toxicology and marine biology research. Studies have examined its feeding, reproduction, physiology, and potential for aquaculture.
Who described Arbacia punctulata?
The species was described by Jean-Baptiste Lamarck in 1816. Its scientific name remains Arbacia punctulata, although older sources may list historical taxonomic combinations.
What does the Atlantic purple sea urchin look like?
It has a rounded purple test covered with sharp defensive spines. Like other sea urchins, it is an echinoderm and uses its mouth and Aristotle's lantern structure to graze on food.
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