Process of true ambicoloration in larval and juvenile Japanese flounder Paralichthys olivaceus: An ultrastructural study
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- HAGA YUTAKA
- Center of Marine Biotechnology, University of Maryland Biotechnology Institute
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- NATAAMI KEI
- Faculty of Marine Science, Tokyo University of Marine Science and Technology
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- TAKEUCHI TOSHIO
- Faculty of Marine Science, Tokyo University of Marine Science and Technology
Bibliographic Information
- Other Title
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- ヒラメParalichthys olivaceus仔稚魚の真の両面有色型黒化の発現過程における無眼側皮膚の超微細構造
- ヒラメ Paralichthys olivaceus シチギョ ノ シン ノ リョウメン ユウショクガタ コッカ ノ ハツゲン カテイ ニ オケル ムガンソク ヒフ ノ チョウビサイ コウゾウ
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Abstract
This study investigated the process of true ambicoloration in larval Japanese flounder Paralichthys olivaceus induced by retinoic acid. Larvae at around F-G stages (TL 8.0±0.75 mm) were immersed in 50 nM all-trans retinoic acid for 5 days and reared until 60 days post hatch (dph) in order to develop true ambicoloration. Skin of fish was sampled every 4 days after immersion and subjected to ultrastructural analysis by transmission electron microscope. Melanophages started to be observed in the skin on the blind side of control fish at 30 dph. However, there were no melanophages in fish treated with atRA at 30 dph. In addition, larval type melanophores were observed under the subepidermal collagenous lamella in the skin on the blind side of fish treated with atRA. Only irridophores existed in skin on the blind side of the control fish at 40 dph. However, all three kinds of chromatophore existed on both sides of the skin of fish treated with atRA at 40 dph. These results suggested that the developmental process of pigmentation on the blind side of fish showing true ambicoloration mimicked that on the ocular side.<br>
Journal
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- NIPPON SUISAN GAKKAISHI
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NIPPON SUISAN GAKKAISHI 71 (5), 782-790, 2005
The Japanese Society of Fisheries Science
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Details 詳細情報について
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- CRID
- 1390282681391744512
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- NII Article ID
- 110003169472
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- NII Book ID
- AN00193422
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- ISSN
- 1349998X
- 00215392
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- NDL BIB ID
- 7492630
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed