Directional light transmission in the pi
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Nordtug, Trond ;Berg, Ole Kristian ;MelΓΈ, Thor Bernt
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Article
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1994
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John Wiley and Sons
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English
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## Abstract The pineal window of adult Atlantic salmon (__Salmo salar__) (fork length 45β55 cm) is highly transparent, apart from a roofβlike (mean angle 120Β° Β± 5Β°), bony structure formed by the pineal plates. On each side of the bony pineal plates there is a white lining which acts like an optical