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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
Peer-reviewed Journal Articles, etc >
北海道後志沿岸におけるクロソイの年齢と成長
| Title: | 北海道後志沿岸におけるクロソイの年齢と成長 |
| Other Titles: | Age and Growth of Sebastes schlegeli in the Coastal Waters of Shiribeshi Subprefecture, Hokkaido, Japan |
| Authors: | 佐々木, 正義1 Browse this author | | 蜜谷, 法行2 Browse this author | | 西内, 修一3 Browse this author | | 塩川, 文康4 Browse this author | | 高橋, 豊美5 Browse this author |
| Authors(alt): | Sasaki, Masayoshi1 | | Mitsutani, Noriyuki2 | | Nishiuchi, Syuichi3 | | Shiokawa, Fumiyasu4 | | Takahashi, Toyomi5 |
| Keywords: | age | | cross-section method | | growth | | otolith | | Sebastes schlegeli |
| Issue Date: | Nov-2004 |
| Publisher: | 水産海洋学会 |
| Journal Title: | 水産海洋研究 |
| Journal Title(alt): | Bulletin of the Japanese Society of Fisheries Oceanography |
| Volume: | 68 |
| Issue: | 4 |
| Start Page: | 232 |
| End Page: | 238 |
| Abstract: | Age and growth of Sebastes schlegeli collected from the coastal waters of the Shiribeshi subprefecture in Hokkaido were studied. Observations of the otolith margin verified that annuli (outer margins of the opaque zone) were formed chiefly in June. This period accorded approximately with the parturition season (late May-mid-June) that was judged from the seasonal change in gonadosomatic index, occurrence of eyed eggs and histological observations of ovaries. The surface method of otolith aging was found to be inadequate for aging of S. schlegeli older than 7 years because of the underestimation of age. A significant difference was found in the parameters of the growth equations between females and males. Growth of S. schlegeli was expressed by the von Bertalanffy asymptotic growth function as TLt=633.1(1-exp^[-0.160(t+0.965)]) for females and TLt=417.7(1-exp^[-0.363(t+0.368)]) for males, where TLt is the total length (mm) at age t (after parturition in years). Based on previously published data, the growth rate of S. schlegeli in this region was relatively low, especially in males, because of low temperatures during the winter and spring and the shortness of the high growth period of 10-20℃. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/38885 |
| Appears in Collections: | 水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 高橋 豊美
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