Chicken liver sponges form smooth, shiny, brown or greyish lobes that closely resemble pieces of raw liver clinging to shallow reef surfaces. They host photosynthetic cyanobacteria within their tissues, which provide them with energy and contribute to their distinct coloration. These resilient filter feeders play a vital role in reef ecosystems by cycling nutrients and binding loose carbonate sediments together.
MarineEncrustingSymbiotic
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Key facts
Diet & prey
Bacteria
Phytoplankton
Organic Detritus
Predators
Hawksbill Sea Turtle
Parrotfish
Sea Urchins
ThreatsCoastal development, sedimentation, ocean warming, and physical damage from anchors
HabitatsShallow coral reefs, rocky shores, mangrove roots, and seagrass beds
Life spanSeveral years to decades
Size / weightNot available
Classification
FamilyChondrillidae
SpeciesChondrilla nucula
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
Low
Moderate
High
Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
Look for the sheen: Spot these sponges by their smooth, shiny, liver-like texture on shallow rocks.
Avoid touching: Keep hands off to protect their delicate filtering pores and symbiotic surface layer.
