JELLYFISH: ECOLOGY LIFE CYCLES AND GLOBAL IMPACTS

Jellyfish are gelatinous marine organisms belonging mainly to the phylum Cnidaria, notable for their widespread distribution, complex life histories, and ecological impacts on marine ecosystems. They possess distinctive life cycles involving alternating sexual and asexual phases and are capable of forming large population blooms with significant ecological, economic, and social consequences. This article reviews the biology, life cycle, and global ecological implications of jellyfish, particularly focusing on their life history traits and how environmental changes drive population dynamics.