Assertion: kelp | /r/HasProperty | laminaria hyperborean
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text: One biologist reports that in Norway’s dense coastal kelp forests, there are over 100,000 sponges, moss animals, sea squirts, and other invertebrates per square meter that live on kelp (Laminaria hyperborean) stems.2 Pollution, overfishing, and climate change all threaten the health of large kelp forests.