The visual cell morphology of Pagrus major and its adaptive changes with shift from palagic to benthic habitats.
川村軍蔵， 津田良平， 熊井英水， 大橋伸一 - 日本水産学会誌, 1984 - jlc.jst.go.jp
The visual cell morphology in 2-90mm long larvae and juveniles, and adult of the red sea
bream Pagrus major was examined histologically. The visual system of the larvae is poorly
developed at hatching, but becomes functional in 36 hours. At this time, the eyes are well
pigmented, cones are formed, and optic nerves connect with the optic tectum. The visual
cells of larvae smaller than 10.6 mm are all single cones. At 11mm TL, the single cones fuse
to form twin cones, and rods appear at the same time. Red sea bream shifts from a pelagic to …
bream Pagrus major was examined histologically. The visual system of the larvae is poorly
developed at hatching, but becomes functional in 36 hours. At this time, the eyes are well
pigmented, cones are formed, and optic nerves connect with the optic tectum. The visual
cells of larvae smaller than 10.6 mm are all single cones. At 11mm TL, the single cones fuse
to form twin cones, and rods appear at the same time. Red sea bream shifts from a pelagic to …
The visual cell morphology of Pagrus major and its adaptive changes with shift from pelagic to benthic habitats
G Kawamura, R Tsuda, H Kumai, S Ohashi - Nippon Suisan Gakkaishi, 1984 - jlc.jst.go.jp
Results Larvae and Juveniles In the newly hatched larvae, the eyes are not pigmented and
the lens and retina are poorly dif ferentiated (Plate I. A). The lens cells are ar ranged
spherically and the cells in the inner retinal layer are arranged radially. At 10 hours from
hatching, the lens cells show the first signs of for-
the lens and retina are poorly dif ferentiated (Plate I. A). The lens cells are ar ranged
spherically and the cells in the inner retinal layer are arranged radially. At 10 hours from
hatching, the lens cells show the first signs of for-
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