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Ultraviolet visual pigments in marine fishes of the family pomacentridae.

Authors
  • McFarland, W N
  • Loew, E R
Type
Published Article
Journal
Vision Research
Publisher
Elsevier
Publication Date
Jun 01, 1994
Volume
34
Issue
11
Pages
1393–1396
Identifiers
PMID: 8023448
Source
Medline
License
Unknown

Abstract

Near-UV visual pigments have been reported in single cones of several freshwater and euryhaline fishes. The presence of UV visual pigments in stenohaline marine fishes have, as yet, not been identified. In the pomacentridae near-UV visual pigments are present in single cones from the three species we examined--the tropical coral fishes Dascyllus trimaculatus and Pomacentrus coelestis, and the temperate Chromis punctipinnis. Maximum absorption of the UV pigments is centered around 360 nm. In juvenile Chromis, however, the UV visual pigment is not present. Instead there is a single cone containing a violet-sensitive pigment absorbing maximally around 420 nm. All three species are obligate diurnal planktivores. The UV sensitivity may function to enhance their ability to forage on zooplankton.

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