Common name: golden sea squirt

Scientific name: Polycarpa aurata (Quoy & Gaimard, 1834)

General information

The Golden Sea Squirt, Polycarpa aurata, is a fascinating invertebrate commonly found in the Indo-Pacific region. It is known for its striking gold-colored incurrent siphon and beautiful translucent body, often adorned with purple or brownish hues. This species is a filter feeder, using its siphon to draw in water and extract plankton and other small particles for nutrition.

Details

Recommended minimum tank volume
100 liter (26 gallons)
Salinity
S.G. 1.023 to 1.026
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
10 cm (4″)
Care level
Moderate to easy Requires stable conditions
Diet
Omnivore Feeds on plankton and detritus
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Chordates
    Chordata
  3. Class
    Sea Squirts
    Ascidiacea
  4. Order
    Sea Cucumbers
    Pleurogona
  5. Family
    Stolidobranch ascidians
    Styelidae
  6. Genus
    Sea Squirts
    Polycarpa
  7. Species
    golden sea squirt
    Polycarpa aurata (Quoy & Gaimard, 1834)
  8. Synonyms
    Ascidia aurata Quoy & Gaimard, 1834
    Pandocia aurata (Quoy & Gaimard, 1834)
    Pandocia botryllifera Michaelsen, 1912
    Pandocia pizoni Hartmeyer, 1909
    Polycarpa sulcata Herdman, 1882
    Styela aurata (Quoy & Gaimard, 1834)
    Styela pneumonodes Sluiter, 1895
    Styela psoloessa Sluiter, 1890

Care

Polycarpa aurata requires a well-established aquarium with stable water conditions and low to moderate water flow. It is essential to provide a diet rich in fine particulate organic matter, such as phytoplankton or foods designed for filter feeders. Regular water changes and efficient filtration are crucial to maintain water quality and support the health of the Golden Sea Squirt.

Reproduction

In the aquarium, Polycarpa aurata may reproduce asexually through budding, where new individuals grow from the parent organism. Sexual reproduction is less common in captivity but involves the release of eggs and sperm into the water column, where fertilization occurs externally.

Habitat

The Golden Sea Squirt is typically found attached to hard substrates in reef environments, often in areas with moderate currents that facilitate its filter-feeding behavior. They are usually seen at depths ranging from shallow waters to about 20 meters deep.

Geographically, Polycarpa aurata is distributed across the Indo-Pacific, from the Red Sea and East Africa to the central Pacific Ocean.