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Abstract
Artificial light at night may significantly alter the locomotor behavior of the Mediterranean sea urchin, Paracentrotus lividus.
- Sea urchins exhibited a tendency to move away from light sources in illuminated conditions.
- In dark conditions, the movement direction of sea urchins was consistent and uniform.
- Increased light intensity was associated with shorter latency times and higher movement speeds.
- Locomotor performance showed lower sinuosity when exposed to artificial light.
- These behavioral changes may have cascading effects on marine ecosystems.
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