Mauve Stinger

Overview

The Mauve Stinger (Pelagia noctiluca) is a widely distributed, pelagic jellyfish known for its striking coloration and potent sting. It is a bioluminescent species, capable of emitting flashes of light when disturbed, which inspired its scientific name meaning "sea night light."

Distribution & habitat

This species is primarily found in warm and temperate oceanic waters worldwide, including the Mediterranean Sea, the Atlantic Ocean, and parts of the Pacific. While it is an offshore, open-ocean dweller, it frequently drifts into coastal areas, where it can form large aggregations or "blooms" driven by winds and currents.

Appearance

The Mauve Stinger typically features a mushroom-shaped bell that ranges from 3 to 12 cm in diameter, colored in shades of mauve, purple, pink, or light brown. Its surface is covered in numerous small, stinging warts, a feature that distinguishes it from many other jellyfish. It possesses four thick, frilled oral arms and eight long, slender marginal tentacles that can extend up to 3 meters in length, all of which are equipped with nematocysts.

Biology & behavior

Unlike many other scyphozoans, the Mauve Stinger has a direct life cycle that lacks a sessile polyp stage, meaning it remains free-swimming throughout its entire life. It moves through the water column via rhythmic pulsations of its bell. The species is highly opportunistic, feeding on a variety of small organisms including planktonic crustaceans, fish eggs, larvae, and other gelatinous creatures. Contact with its tentacles or bell can cause painful, burning stings to humans, often resulting in lasting skin irritation.