Flashing spots on the dorsal trunk of hardyhead silverside fish
| Autor: | Iwasaka, Masakazu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Dorsum
light reflection Science structural colour 010402 general chemistry 01 natural sciences Atherinomorus 03 medical and health sciences Flash (photography) Optics Research Articles 030304 developmental biology Physics Hardyhead silverside Physics and Biophysics 0303 health sciences Multidisciplinary Spots biology guanine platelet business.industry light intensity change biology.organism_classification Flashing Trunk Chromatophore 0104 chemical sciences business |
| Zdroj: | Royal Society Open Science, Vol 8, Iss 4 (2021) Royal Society Open Science |
| ISSN: | 2054-5703 |
| DOI: | 10.1098/rsos.201578 |
| Popis: | A large number of living creatures are able to use ambient light effectively in biological signalling. Atherinomorus lacunosus , a teleost fish has alignments of circular spots on its dorsal trunk. The spot consists of iridophores, whose diameters are approximately 7–10 µm. The iridophore contains guanine crystals with diameters of 1–3 µm. Here, it is found that more than one spot with a diameter of approximately 0.1 mm causes a rhythmic flashing of light when viewed under white light. The typical light flash has a pulse width of approximately one second. When a pulsed train of flashes appears, the flash repeats at a typical frequency of 0.5–1 Hz. The observed phenomenon is one example of the evidence for the existence of rapid colour changing teleost fish. |
| Databáze: | OpenAIRE |
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