Journal of Marine Sciences / 2012 / Article / Fig 3

Research Article

Kelp Forests versus Urchin Barrens: Alternate Stable States and Their Effect on Sea Otter Prey Quality in the Aleutian Islands

Figure 3

Sea urchin biomass per unit area and biomass per individual urchin from remnant kelp forest and urchin barren communities throughout the central and western Aleutian Islands. Significant differences at 𝑃 0 . 0 5 level are indicated by (*).