Variegated sea urchins introduced to graze Graceful redweed

Variegated sea urchins were added to the Seagrass Meadow after Graceful redweed and other macroalgae continued spreading across the surface and shading the shoal grass below it. During acclimation, one urchin immediately ate a small piece of Graceful redweed, making this the first direct food-web response to the meadow macroalgae problem.