Karoline O.A. Pettersen The urchin diver gazes over the waves on ... It so happens that urchins can be found in almost every major marine habitat from the poles to the Equator, and from shallow ...

Barren habitat has lower productivity and absorbs ... of urchins—play a significant role in controlling long-spined urchin populations and in turn, barrens. However, this study found almost ...

The sea urchin population in many coastal areas is on the increase, and this could have a negative impact on recreational activities associated with the coast. In certain areas, hundreds of these ...

HIRONO, Iwate Prefecture--Sea urchin are a culinary delicacy, but because their shells are often seen as too difficult or costly to recycle, they end up getting tossed out in bulk. But a local ...