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A large fish-eating anemone attached to a rocky shore with the kelp forest in the background at Point Lobos

Fish-eating anemone

Urticina piscivora

Not on exhibit
Animal type
Invertebrates
Ecosystem
Reefs & pilings
Relatives
Hydroids, corals and jellyfishes; Phylum: Cnidaria
Diet
Invertebrates and small fishes
Range
Alaska to southern California
Size
Up to 8 inches tall (20 cm), 10 inches (25 cm) across

Meet the fish-eating anemone

While more delicate species rake in bits of food, this anemone has sturdy tentacles that bring down big game like shrimps and small fishes. Like other anemones, they grow larger when food's plentiful and "grow" smaller when food is scarce.

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Conservation

Rocky reefs are important homes for many kinds of fish and invertebrates. But "rockhopper" trawls used in commercial fishing can leave reefs a tumbled wasteland, not to recover for decades.

Cool facts

  • Small fish called painted greenlings sometimes lie in fish-eating anemones, much like clownfish do in tropical anemones.

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