Retinal Tapetum in Three Anchovies (Encrasicholina heteroloba, E. devisi and E. punctifer) from Thai Waters.
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Accession number;01A0448110
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| Title;Retinal Tapetum in Three Anchovies (Encrasicholina heteroloba, E. devisi and E. punctifer) from Thai Waters. |
| Author;
AWAIWANONT K
(Kagoshima Univ., Kagoshima, Jpn)
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Journal Title;Suisan Zoshoku
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Journal Code:Y0285A
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ISSN:0371-4217
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VOL.49;NO.1;PAGE.29-34(2001)
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| Figure&Table&Reference;FIG.4, REF.18 |
| Pub. Country;Japan |
| Language;English |
| Abstract;The histology of retinas of three anchovies, namely shorthead anchovy (Encrasicholina heteroloba), Devis' anchovy (E. devisi), and Buccaneer anchovy (E. punctifer) from Thai waters, were examined under light microscopy and scanning electron microscopy. Their retinas were from a light-adapted state. The visual cell layers contained cones and rods as well as apical processes of the pigment epithelium cells. The single layer of cones was arranged in parallel rows. The outer segments of the cone cells were enrolled by the retinal tapetum. Rods were stacked and densely covered by the retinal tapetum of pigment epithelial cells. Three types of tapetum could be recognized; platelets, needles, and crystallites. This retinal tapetum should subserve their visual systems, to become highly adapted for the dim light environment. (author abst.) |
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