Pacific Sea Nettle
Scientific Name: Chrysaora fuscescens
Category: other
Brief Description
A striking large jellyfish known for its long, trailing tentacles and frilly oral arms, often seen in aquariums and off the western coast of North America.
Characteristics
Large, bell-shaped body that can reach 1 meter in diameter. It features a distinctive golden-brown or yellowish bell, many long dark tentacles, and white frilly oral arms under the bell. In this blue aquarium lighting, they appear luminescent blue and purple.
Habitat
Pelagic zones of the open ocean and coastal waters.
When to Find It
Commonly seen in large blooms during late summer and autumn when food is abundant.
Conservation Status
LC (Least Concern)
Ecological Role
A key predator of zooplankton, small fish, and other jellyfish. They are also a primary food source for predators like the Leatherback Sea Turtle.
Easily Confused With
Atlantic Sea Nettle (Chrysaora quinquecirrha), which is smaller and prefers warmer, less salty waters; Purple-striped Jelly (Chrysaora colorata), which has distinct purple stripes on its bell.
Observation Tips
In the wild, avoid touching them as they possess a painful sting. Use a fast shutter speed to capture their graceful movement in aquarium settings.
Interesting Facts
The Pacific Sea Nettle can move by pulsating its bell, but it mostly relies on ocean currents for travel. Their stinging cells, or nematocysts, remain active even if the jellyfish is dead or a tentacle is detached.