Korall

Korall is a term used in several Nordic and Baltic languages to denote coral, the marine invertebrates that form reef structures. In these languages korall refers to the same biological group as the English word coral.

Biology: Corals are colonial marine invertebrates belonging to the phylum Cnidaria and the class Anthozoa. They form calcium carbonate skeletons that can accumulate into reef structures. Many corals host symbiotic algae called zooxanthellae within their tissues, providing energy through photosynthesis. Reproduction occurs through both asexual budding and sexual release of eggs and sperm, often synchronized across colonies.

Ecology: Coral reefs occupy sunlit, shallow marine environments, especially in tropical regions. They support high biodiversity, protect coastlines from waves, and sustain fisheries and tourism. Healthy reefs rely on stable water temperatures and clear, low-nutrient waters.

Threats and conservation: Coral ecosystems are threatened by climate change, ocean warming and acidification, pollution, destructive fishing, and coastal development. Conservation approaches include marine protected areas, reef restoration projects, and efforts to reduce local stressors such as runoff and overfishing.

Name usage: Korall can also appear as a proper noun in Nordic contexts, such as place names or brand names, separate from its linguistic meaning. See also coral, coral reef.