GENERAL HISTOLOGY

Detailed explanation-1: -Eating purple sea urchins when they’re available is part of a local conservation effort. Purple sea urchins are contributing to the destruction of kelp forests, a key component of the region’s coastal ecosystem that sustains a wide variety of sea life.

Detailed explanation-2: -Sea urchins (/ˈɜːrtʃɪnz/) are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to 5, 000 meters (16, 000 ft; 2, 700 fathoms).

Detailed explanation-3: -“You could call these sea urchins the lawn mowers of the reefs, ” said Patterson, a UF/IFAS associate professor of fisheries and aquatic sciences. “They eat fleshy seaweeds that grow out of control on coral reefs and ultimately smother the corals.”

Detailed explanation-4: -Sea urchins–spiny creatures found on the ocean floor–eat kelp at its roots. If a great number of sea urchins feed on a kelp bed, the seaweed will die and float away. The fish and shellfish that depend on the kelp forest will lose their habitat, and their populations will decline greatly.