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  1. Belgian Register of Marine Species - Coronula diadema (Linnaeus, ā€¦

  2. Coronula diadema (Linnaeus, 1767) - World Register of Marine ā€¦

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    As herbivorous grazers, they keep the growth of marine algae in check and prevent it from overgrowing and smothering corals. Globally, at least eight unique species of Diadema are known to exist: D. africanum, D. antillarum, D. clarki, D. mexicanum, D. palmeri, D. paucispinum, D. savignyi, and D. setosum .
    Diadema antillarum, the long-spined sea urchin, is an ecologically important species in Caribbean coral reef habitats where it controls algal growth and coverage and helps keep reef surfaces clear for corals to grow and settle. Sea urchins in the genus Diadema serve critical ecosystem functions within coral reef environments.
    Diadema antillarum scuticociliatosis (DaSc) is an emerging infectious disease affecting sea urchins of the genus Diadema. Caused by a ciliate most closely related to Philaster apodigitiformis, the infection caused mass mortalities of urchins in the Caribbean and Mediterranean Seas in 2022-2023. Sources/Usage: Public Domain. View Media Details
    On St Maarten, Diadema loss has been recorded on the dive sites Little Bay (fort Amsterdam), Frenchmanā€™s Reef and Cowboy Reef (Indigo Bay). In Curaçao, the first sightings of diseased sea urchins were reported in early June. Two weeks later, more than 90% of the surveyed populations had disappeared.
  4. Belgian Register of Marine Species

  5. MarBEF Data System - ERMS - Coronula Lamarck, 1802

  6. WEB6 dagen geleden · Other external parasites include barnacles such as Coronula diadema, Coronula reginae, and Cryptolepas rhachianecti, which latch on their skin deep enough to leave behind a pit if removed. ā€¦

  7. Why Do Humpback Whales Have Barnacles? - natureweb.co

  8. diadema | Dutch Caribbean Biodiversity Database

  9. Barnacles On Whales - futureandeducation.com

  10. Diadema antillarum Mass Mortality | U.S. Geological Survey

  11. DiatomBase - Diadema K.-D. Kemp & T.B.B. Paddock, 1989