Turning up the lights: ocean acidification may increase light intensity of secretory bioluminescent signaling (text & video)

Video created by Tom Iwanicki, PhD Candidate at the University of Hawai’i at Manoa, presented at the annual meeting of the Society for Integrative and Comparative Biology in January 2021 through February 2021. These data are unpublished.

Synopsis: Approximately 75% of pelagic organisms are capable of bioluminescence. Under the IPCC worst-case scenario (RCP8.5), the average ocean pH will decrease from its pre-industrial average of 8.2 to 7.7 by the end of the 21st century. Under these conditions, bioluminescent systems may be affected by this change in the reaction medium (ocean water). This meta-analysis surveyed previously published research and found 49 records including bioluminescent intensity and pH for a wide range of taxa. These data suggest the direction and magnitude of an ocean acidification effect is taxa-specific.

Tom Iwanicki, Vimeo, 25 February 2021. Text & video.

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