魚貝類の石灰化に関する研究-IV : 魚類耳石の透明帯および不透明帯の窒素量の相違について

スポンサーリンク

概要

• 論文の詳細を見る

• The nitrogen content of both the opaque and translucent zones of the otolith was determined by the micro-Kjeldahl method of KING slightly modified, using seven marine and two fresh-water fish. (1) In the case of the otolith which is flat on both its inner and outer sides, two different parts of the opaque and translucent zones of it can be successfully separated by use of a dental excavator equipped with a small diamond disk. (2) The nitrogen content of the otoliths measured was very small, ranging from 0.17 to 0.23% of their total weight. However, the opaque zone was found to contain more nitrogen than the translucent one, ranging from 0.22 to 0.26% and from 0.15 to 0.18%, respectively. (3) Accordingly, the amount of protein deposited on otolith is considered to be an important factor which determines the difference between the opaque and translucent zones of the otolith.

• 公益社団法人 日本水産学会の論文

著者

• 麦谷 泰雄

  Faculty of Fisheries, Hokkaido University

関連論文

• 魚貝類の石灰化に関する研究-VII : 魚類の耳石形成,特にニジマス小嚢耳石及び斑点間の組織化学的類似性
• 魚貝類の石灰化に関する研究-VI : 魚類の耳石輪紋形成に対応する耳石液カルシウムおよびマグネシウム量の季節的変化
• 魚貝類の石灰化に関する研究-IV : 魚類耳石の透明帯および不透明帯の窒素量の相違について
• 魚貝類の石灰化に関する研究-III : 2,3の魚種の耳石不透明帯形成期の耳石液におけるプレアルブミン分画の出現および蛋白量の増加

スポンサーリンク