Multifocal lenses in coral reef fishes
Författare
Summary, in English
The optical properties of crystalline lenses were studied in eleven species of coral reef fish from the Red Sea in Eilat, Israel. Three species each of diurnal planktivores, nocturnal planktivores and diurnal herbivores constituted three groups of animals with little within-group variability. In addition we studied two predators, which differed with respect to body size, prey preference, hunting method and diel activity period. All species studied have multifocal lenses. There were statistically significant differences in the optical properties of the lenses between the first three groups and between the predatory species. The properties of the lenses correlate well with known complements of visual pigments and feeding habits. Lenticular zones focusing ultraviolet light were found in two diurnal planktivores. The optical properties of the lens seem to be specifically adapted to the visual needs of each species.
Avdelning/ar
Publiceringsår
2007
Språk
Engelska
Sidor
2923-2931
Publikation/Tidskrift/Serie
Journal of Experimental Biology
Volym
210
Issue
16
Dokumenttyp
Artikel i tidskrift
Förlag
The Company of Biologists Ltd
Ämne
- Zoology
Nyckelord
- Red Sea
- spherical aberration
- chromatic aberration
- physiological optics
- color vision
- visual pigments
Status
Published
Forskningsgrupp
- Lund Vision Group
ISBN/ISSN/Övrigt
- ISSN: 1477-9145