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- 渡邊 隆司
- 東京海洋大学大学院海洋科学技術研究科
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- 浜崎 活幸
- 東京海洋大学大学院海洋科学技術研究科
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- 横田 賢史
- 東京海洋大学大学院海洋科学技術研究科
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- Strussmann Carlos A.
- 東京海洋大学大学院海洋科学技術研究科
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- 渡邊 精一
- 東京海洋大学大学院海洋科学技術研究科
書誌事項
- タイトル別名
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- Use of lipofuscin age-pigment for estimating age class composition in wild populations of the xanthid crab Leptodius exaratus
- Lipofuscin オ ネンレイ ケイシツ ト シタ オウギガニ ノ ネンキュウグン スイテイ
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The present study aims to examine the age class composition of wild Leptodius exaratus populations, using lipofuscin as an age marker. Stereometrical quantification of lipofuscin granules on histological sections of nervous tissue from wild crabs was conducted using a fluorescence microscope. The highest concentration of lipofuscin was observed in the olfactory lobe cell mass of the brain. Five groups could be distinguished within the normal distribution of lipofuscin concentration values and the mean values for the groups increased linearly. This suggests that lipoftiscin accumulation rate was constant between the groups. Based on the size of the specimens in the group with lowest lipofuscin concentration values (hence group 1), it is surmised that they were born in the previous reproductive season. These results suggest that the lipofuscin groups 1-5 might correspond to the 1-5+ aged groups in wild population of L. exaratus. Examination of the lipofliscin accumulation, number of moltings and growth of captive-reared crabs during a period of one year supported the age class estimation of wild samples.
収録刊行物
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- CANCER
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CANCER 21 (0), 7-12, 2012
日本甲殻類学会
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詳細情報 詳細情報について
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- CRID
- 1390001204425186688
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- NII論文ID
- 110009586378
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- NII書誌ID
- AN10409222
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- ISSN
- 24241407
- 09181989
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- NDL書誌ID
- 024028696
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可