Hallucinogenic fish

Several species of fish are claimed to produce hallucinogenic effects when consumed, a condition known as ichthyoallyeinotoxism.

For example, Sarpa salpa, a species of sea bream referred to as the "dream-fish", is commonly claimed to be hallucinogenic.

In 2006, two men who apparently ate the fish experienced hallucinations lasting for several days (an effect common with some naturally occurring deliriants).

Toxins from the green algae Caulerpa prolifera in the Mediterranean Sea appear to be implicated,[13] as is the seagrass Posidonia oceanica.

[61] "Ichthyoallyeinotoxism is a kind of ichthysarcotoxism (fish flesh poisoning) responsible of an unusual clinical feature: it is the unique case of central nervous system ichthyotoxicity.

Symptoms are dizziness, loss of equilibrium, lack of motor coordination, hallucinations and mental depression.

No fatalities have been reported, and in comparison with other forms of ichthyosarcotoxism, hallucinogenic fish poisoning is relatively mild...