Naming
The origin of the genus name ''Chrysaora'' lies in Greek mythology with Chrysaor, brother of Pegasus and son of Poseidon and Medusa. Translated, Chrysaor means “he who has a golden armament.”
Distribution
''Chrysaora fuscescens'' is commonly found along the coasts of California and Oregon, though some reside in the waters north to the Gulf of Alaska, west to the seas around Japan and south to the Baja Peninsula. The populations reach their peak during the late summer. In recent years, ''C. fuscescens'' has become overly abundant off the coast of Oregon, which is thought to be an indicator of climate change. However, others suspect that the population is increasing because of human influences to coastal regions,Habitat
''Chrysaora fuscescens'' is commonly found along the coasts of California and Oregon, though some reside in the waters north to the Gulf of Alaska, west to the seas around Japan and south to the Baja Peninsula. The populations reach their peak during the late summer. In recent years, ''C. fuscescens'' has become overly abundant off the coast of Oregon, which is thought to be an indicator of climate change. However, others suspect that the population is increasing because of human influences to coastal regions,Reproduction
''Chrysaora fuscescens'' is capable of both sexual reproduction in the medusa stage and asexual reproduction in the polyp stage. The life cycle of ''C. fuscescens'' begins when females catch sperm released by the males to fertilize the eggs she has produced and is holding in her mouth. These fertilized eggs remain attached to her oral arms, and there they grow into flat bean-shaped planula. Once they grow into flower-shaped polyps, they are released into the ocean where they attach themselves to a solid surface and undergo asexual reproduction. The polyp makes identical copies of itself this by means of budding, where the new polyp grows from its side. After the new polyp is fully formed, it too is released into the ocean and undergoes metamorphosis as it grows, developing a bell, arms, and tentacles until it is a fully formed medusa.Food
In common with other cnidaria, ''Chrysaora fuscescens'' are carnivorous animals. They catch their prey by means of cnidocyst -laden tentacles that hang down in the water. The toxins in their nematocysts are effective against both their prey and humans, though it is typically nonlethal to the latter. Because ''C. fuscescens'' cannot chase after their prey, they must eat as they drift. By spreading out their tentacles like a large net, the sea nettle is able to catch food as it passes by. When prey brushes up against the tentacles, thousands of nematocysts are released, launching barbed stingers which release a paralyzing toxin into the quarry. The oral arms begin digestion as they transport the prey into the sea nettle’s mouth.''C. fuscescens'' feeds on a wide variety of zooplankton, crustaceans, salps, pelagic snails, small fish as well as their eggs and larvae, and other jellyfish. Due to their growing numbers, they seem to be reducing fish populations and have become nuisances to the fisherman of Oregon by clogging up fishing nets. Their dense swarms have also become problematic for scientific trawls and water intake.
Despite having a potent sting, ''Chrysaora fuscescens'' is prey to many marine birds and large fish.
Predators
In common with other cnidaria, ''Chrysaora fuscescens'' are carnivorous animals. They catch their prey by means of cnidocyst -laden tentacles that hang down in the water. The toxins in their nematocysts are effective against both their prey and humans, though it is typically nonlethal to the latter. Because ''C. fuscescens'' cannot chase after their prey, they must eat as they drift. By spreading out their tentacles like a large net, the sea nettle is able to catch food as it passes by. When prey brushes up against the tentacles, thousands of nematocysts are released, launching barbed stingers which release a paralyzing toxin into the quarry. The oral arms begin digestion as they transport the prey into the sea nettle’s mouth.''C. fuscescens'' feeds on a wide variety of zooplankton, crustaceans, salps, pelagic snails, small fish as well as their eggs and larvae, and other jellyfish. Due to their growing numbers, they seem to be reducing fish populations and have become nuisances to the fisherman of Oregon by clogging up fishing nets. Their dense swarms have also become problematic for scientific trawls and water intake.
Despite having a potent sting, ''Chrysaora fuscescens'' is prey to many marine birds and large fish.
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