Respiratory Pigment from the Eggs of a Marine
نویسنده
چکیده
-An apparatus providing continuous artificial illumination of constant intensity directed to the lower surface of flounders is pictured. Pigmentation was developed on the lower normally unpigmented surface in a high percentage of summer flounders in the following experimental situations: (1) Unoperated fishes in black tanks illuminated from below. (2) Blinded dark fishes in black tanks illuminated from below or in white tanks illuminated from above. The observation that flounders blinded in the dark phase developed ventral pigment as readily as unoperated ones indicates that the eyes are not essential to this reaction. Ligbt is a necessary factor in the production of ventral pigment.
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