10/17/2026
Light pollution is not one of the Indian River Lagoon’s biggest threats...nutrient pollution, stormwater runoff, algal blooms, poor water clarity, and habitat loss are more significant.
However, artificial light at night can disrupt feeding, hiding, migration, reproduction, and predator–prey interactions, potentially affecting the lagoon’s food web.
Waterfront properties can reduce impacts by:
- Turning off unnecessary lights
- Using warm/amber lighting instead of blue-white
- Shielding fixtures and directing light downward
- Keeping lights low and away from the water
- Closing blinds facing nesting beaches
photo credit: E. Irvin
Zapata, M.J., Sullivan, S.M.P. & Gray, S.M. Artificial Lighting at Night in Estuaries—Implications from Individuals to Ecosystems. Estuaries and Coasts 42, 309–330 (2019). https://doi.org/10.1007/s12237-018-0479-3
Becker, A., Whitfield, A.K., Cowley, P.D., Järnegren, J. and Næsje, T.F. (2013), Potential effects of artificial light associated with anthropogenic infrastructure on the abundance and foraging behaviour of estuary-associated fishes. J Appl Ecol, 50: 43-50. https://doi.org/10.1111/1365-2664.12024
Marangoni LFB, Davies T, Smyth T, Rodríguez A, Hamann M, Duarte C, Pendoley K, Berge J, Maggi E, Levy O. Impacts of artificial light at night in marine ecosystems-A review. Glob Chang Biol. 2022 Sep;28(18):5346-5367. doi: 10.1111/gcb.16264. Epub 2022 Jun 14. PMID: 35583661; PMCID: PMC9540822.