"Accessory corner cones"as putative UV-sensitive photoreceptors in the retinas of seven adult nototheniid fishes

We describe "accessory corner cones" contained in the retinas of sevenspecies of Antarctic adult nototheniid fishes (Nototheniidae, Perciformes)and suggest, on the basis of morphology, that they are UV-sensitivephotoreceptors. The potential significance of the presence of UV-sensitivityin...

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Bibliographic Details
Main Authors: Miyazaki Taeko, Iwami Tetsuo, Yamauchi Masatake, Somiya Hiroaki
Format: Article in Journal/Newspaper
Language:English
Published: 2001
Subjects:
Antarctic
Antarc*
Euphausia superba
Polar Biology
Online Access:https://repo.qst.go.jp/?action=repository_uri&item_id=43112
http://id.nii.ac.jp/1657/00043099/
Description
Summary:We describe "accessory corner cones" contained in the retinas of sevenspecies of Antarctic adult nototheniid fishes (Nototheniidae, Perciformes)and suggest, on the basis of morphology, that they are UV-sensitivephotoreceptors. The potential significance of the presence of UV-sensitivityin Antarctic fish is that it might increase foraging efficiency by enhancingthe contrast of important prey. Krill (Euphausia superba), for example, areprobably silhouetted against UV-background space light during the Antarcticsummer.

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