Hemocyanin as a biological indicator of artificial light at night stress in sandy beach amphipods

Sep 24, 2022Marine pollution bulletin

Hemocyanin as a marker of stress from artificial night light in sandy beach amphipods

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Abstract

Hemocyanin levels increased by 40% after 14 days of exposure to artificial light at night (ALAN).

  • Hemocyanin is an oxygen-transport protein that may indicate stress in invertebrates.
  • In a two-week experiment, hemocyanin levels rose significantly in response to ALAN exposure.
  • After 7 days, hemocyanin levels increased by 17% compared to controls.
  • After 14 days, hemocyanin levels were 40% higher than control levels.
  • These hemocyanin levels exceeded those measured in natural field conditions.

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