Do the fluorescent red eyes of the marine fish Tripterygion delaisi stand out? In situ and in vivo measurements at two depths
Do the fluorescent red eyes of the marine fish Tripterygion delaisi stand out? In situ and in vivo measurements at two depths
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海鱼雷公藤德莱西的荧光红眼睛引人注目吗?
DOI:
10.1002/ece3.4025
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发表时间:
2018
影响因子:
2.6
通讯作者:
Michiels N.K.
中科院分区:
文献类型:
--
作者:
Harant U.K;Santon M;Bitton P.-P;Wehrberger F;Griessler T;Meadows M.G;Champ C.M;Michiels N.K.
Since the discovery of red fluorescence in fish, much effort has been invested to elucidate its potential functions, one of them being signaling. This implies that the combination of red fluorescence and reflection should generate a visible contrast against the background. Here, we present in vivo iris radiance measurements ofTripterygion delaisiunder natural light conditions at 5 and 20 m depth. We also measured substrate radiance of shaded and exposed foraging sites at those depths. To assess the visual contrast of the red iris against these substrates, we used the receptor noise model for chromatic contrasts and Michelson contrast for achromatic calculations. At 20 m depth,T. delaisiiris radiance generated strong achromatic contrasts against substrate radiance, regardless of exposure, and despite substrate fluorescence. Given that downwelling light above 600 nm is negligible at this depth, we can attribute this effect to iris fluorescence. Contrasts were weaker in 5 m. Yet, the pooled radiance caused by red reflection and fluorescence still exceeded substrate radiance for all substrates under shaded conditions and all butJania rubensandPadina pavoniaunder exposed conditions. Due to the negative effects of anesthesia on iris fluorescence, these estimates are conservative. We conclude that the requirements to create visual brightness contrasts are fulfilled for a wide range of conditions in the natural environment ofT. delaisi.
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影响因子:
3.7
作者:
Alieva NO;Konzen KA;Field SF;Meleshkevitch EA;Hunt ME;Beltran-Ramirez V;Miller DJ;Wiedenmann J;Salih A;Matz MV
通讯作者:
Matz MV
影响因子:
--
作者:
Harant;Michiels
通讯作者:
Michiels
影响因子:
2.5
作者:
F. Huntingford
通讯作者:
F. Huntingford
影响因子:
1.8
作者:
F. Hester
通讯作者:
F. Hester
影响因子:
2.6
作者:
Marshall, NJ;Jennings, K;Losey, GS
通讯作者:
Losey, GS