Positive And Negative Effects Of Sea Otters On Kelp Forest

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What does the otter eat? Sea Urchins How does the consumption by the otter effect the growth of the Kelp forest? The major threat to kelp forests is presented by sea urchins, which can eliminate the forest. Sea otters are the main predators of sea urchins and keep the urchin population in check. Is this a direct or indirect effect? Direct effect - sea otters on sea Urchins. So this is, indirect effect- sea otters on Kelp as they do not have direct relationship. Is this a positive or negative effect? Sea otters have a strong direct negative effect on species that depend on kelp forest. So, this direct negative effect results in a strong indirect positive effect on kelp forest (abundance/distribution). What happened to the kelp forest