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Australian Spotted Jellyfish Video Stock Footage

True jellyfish go through a two-stage life cycle which consists of a medusa stage (adult) and a polyp stage (juvenile). In the medusa stage male jellyfish release sperm into the water column and the female jellyfish gathers the sperm into her mouth where she holds the eggs. Once fertilization occurs and larvae are formed they leave their mother and settle to the ocean floor. Once on the bottom a polyp form occurs and this form reproduces asexually by "cloning" or dividing itself into other polyps. Jellyfish can live for up to five years in the polyp stage and up to two years in the medusa stage(active). When found in warm waters these jellyfish flourish. They are mostly euryhaline but low salinities may have a negative effect on the species. In times of low salinity these jellyfish exhibit loss of their zooxanthellae. Their dispersal patterns are locally patchy. They have only a mild venom and are not considered a threat to humans. They have a mild or non-noticeable sting which can be cured with vinegar. Salt water can be used as a last resort. The jellyfish has caused much destruction to fisheries and ecosystems.

Learn more about Australian Spotted Jellyfish

Animalia: Cnidaria: Rhizostomeae: Scyphozoa: Mastigiidae: Phyllorhiza punctata

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