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写真画像計測を応用した漁獲物体長測定汎用法 日本海西部海域産キダイの銘柄別体長組成推定への応用
https://fra.repo.nii.ac.jp/records/2011849
https://fra.repo.nii.ac.jp/records/20118498dc114a2-2815-46a6-858e-b7a132f91b94
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
fishu_k_55_123.pdf (1.0 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2024-10-11 | |||||
| タイトル | ||||||
| タイトル | 写真画像計測を応用した漁獲物体長測定汎用法 日本海西部海域産キダイの銘柄別体長組成推定への応用 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | An advanced method for measuring the body length of landed fish using an image analysing technique - An application to estimating body length compsition for each commercial size class of yellow sea bream Dentex tumifrons from western waters of the Sea of | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | age; Dentex tumifrons; image analysing technique; von bertalanffy growth model; yellow sea bream | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 著者 |
今井, 千文
× 今井, 千文× 山本, 圭介 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | An advanced method for measurering the body length of landed fish in polystyrene containers using an image analysing technique, is proposed. The method was applied to fork length (FL) measurements of yellow sea bream Dentex tumifrons, landed at Shimonoseki Port fish wholesale market. The estimated mesurement, FLic was taken from two measurement lines. Applying FLic, the measurement accuracy increased significantly on individuals of FL<20cm. For individuals of FL<17cm, FLic was insufficiently acurate, because the fish were not all aligned pararell to the long sides of the container (expressed as "inclination"). Two correcting functions, FLic1=FLic(0.902+0.08591) (I<1.1) and FLeic2=FLic(0.581+0.4261) (I≧1.1) were taken using an index of fish inclination I. Market surveys were carried out ten timesfrom 1998 to 2002. In total, FLic were measured on 2938 individuals from 367 images. The mean FL (FLN) for each size class N (Number of individuals putting in a container) was closely simulated by an allometry function, FLN=67.1N-338. Using the von Bertalanffy growth model, monthly age-size class key was constructed for ages one to six or more. The catch number at age can be determined using the key and monthly catch number for each size class. | |||||
| 言語 | en | |||||
| 書誌情報 |
ja : 水産大学校研究報告 en : Journal of National Fisheries University 巻 55, 号 4, p. 123-131, ページ数 9, 発行日 2007-03 |
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| 出版者 | ||||||
| 出版者 | 水産大学校 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | National Fisheries University | |||||
| 言語 | en | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0370-9361 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00124678 | |||||
| 情報源 | ||||||
| 識別子タイプ | Local | |||||
| 関連識別子 | fishu_k_55_123 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010750325 | |||||
| 言語 | en | |||||
| 関連名称 | agriknowledge | |||||
