Article ; Online: Ultraviolet vision in anemonefish improves colour discrimination.
The Journal of experimental biology
2024 Volume 227, Issue 7
Abstract: In many animals, ultraviolet (UV) vision guides navigation, foraging, and communication, but few studies have addressed the contribution of UV signals to colour vision, or measured UV discrimination thresholds using behavioural experiments. Here, we ... ...
| Abstract | In many animals, ultraviolet (UV) vision guides navigation, foraging, and communication, but few studies have addressed the contribution of UV signals to colour vision, or measured UV discrimination thresholds using behavioural experiments. Here, we tested UV colour vision in an anemonefish (Amphiprion ocellaris) using a five-channel (RGB-V-UV) LED display. We first determined that the maximal sensitivity of the A. ocellaris UV cone was ∼386 nm using microspectrophotometry. Three additional cone spectral sensitivities had maxima at ∼497, 515 and ∼535 nm. We then behaviourally measured colour discrimination thresholds by training anemonefish to distinguish a coloured target pixel from grey distractor pixels of varying intensity. Thresholds were calculated for nine sets of colours with and without UV signals. Using a tetrachromatic vision model, we found that anemonefish were better (i.e. discrimination thresholds were lower) at discriminating colours when target pixels had higher UV chromatic contrast. These colours caused a greater stimulation of the UV cone relative to other cone types. These findings imply that a UV component of colour signals and cues improves their detectability, which likely increases the prominence of anemonefish body patterns for communication and the silhouette of zooplankton prey. |
|||||
|---|---|---|---|---|---|---|
| MeSH term(s) | Animals ; Color ; Color Vision ; Retinal Cone Photoreceptor Cells/physiology ; Color Perception/physiology ; Perciformes ; Ultraviolet Rays | |||||
| Language | English | |||||
| Publishing date | 2024-04-08 | |||||
| Publishing country | England | |||||
| Document type | Journal Article | |||||
| ZDB-ID | 218085-6 | |||||
| ISSN | 1477-9145 ; 0022-0949 | |||||
| ISSN (online) | 1477-9145 | |||||
| ISSN | 0022-0949 | |||||
| DOI | 10.1242/jeb.247425 | |||||
| Shelf mark |
|
|||||
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
Full text online
More links
Kategorien
In stock of ZB MED Cologne/Königswinter
| Zs.A 2629: Show issues | Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (2.OG) ab Jg. 2022: Lesesaal (EG) |
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.