Abundance estimates of sea urchins and a suite of predators over multiple spatial scales.

Underwater visual census surveys were conducted at 15 sites in eastern Tasmania to quantify the abundance of the sea urchin Heliocidaris erythrogramma and several putative predators.

本研究在塔斯马尼亚东部的15个采样点开展水下视觉普查（Underwater Visual Census），以量化红纹刻肋海胆（Heliocidaris erythrogramma）及若干推定捕食者的种群丰度。