Bioluminescence Maintenance in Juvenile Porichthys notatus

The Biological Bulletin
A F Mensinger, J F Case

Abstract

Bioluminescence in the midshipman fish, Porichthys notatus from the Santa Barbara coastal region, was quantified from onset through the first two years of life. Maximum light emission was 2.5 x 109 photons s-1 upon leaving the nest and reached 2.0 x 1010 photons s-1 within the first year. These intensities may be sufficient for counterillumination in moon or starlight over most of the depth range of the fish. The bioluminescence of juveniles recently detached from the nest was depleted by multiple topical applications of a dilute noradrenalin solution. A luciferin-free diet also exhausted luminescence in 10-18 months. Bioluminescence was restored within 24 h after feeding depleted fish with dried specimens of the bioluminescent marine ostracod Vargula hilgendorfii, and light emission capacity was correlated with the amount consumed. Predation by second year fish (18 months) upon juvenile P. notatus (3 months) or upon live V. tsujii also restored luminescence. After restoration, luminescence gradually disappeared within several months. Consumption of luciferin-containing organisms by already competent fish did not increase light intensity. Juvenile P. notatus from the Santa Barbara coastal region require exogenous luciferin to r...Continue Reading

Citations

Jan 22, 2013·Journal of Fish Biology·M P Lynch, A F Mensinger
Apr 8, 2015·Journal of Fish Biology·K M CogliatiS Balshine
Aug 14, 2009·Zoology : Analysis of Complex Systems, ZACS·Julien M Claes, Jérôme Mallefet
Oct 30, 2021·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Chatragadda Ramesh, Manabu Bessho-Uehara

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