WEKO3
アイテム
Norpacネット鉛直びき採集におけるワイヤ長とろ過水量との関係
https://fra.repo.nii.ac.jp/records/2002546
https://fra.repo.nii.ac.jp/records/20025463ea1fac4-1b2c-4a29-8a1d-477f65bd1bbc
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2024-04-23 | |||||
| タイトル | ||||||
| タイトル | Norpacネット鉛直びき採集におけるワイヤ長とろ過水量との関係 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Relationship between the Length of Wire out and the Volume of Water Filtered by the Norpac Net Vertical Haulings | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
森岡, 泰三
× 森岡, 泰三 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In the Norpac net standard sampling (Norpac net: 45 cm in mouth dia., 180 cm in side length, and 0.33x0. 36 mm mesh aperture), it is assured that the net is to be lowered down to a depth of 150 m, paying out an additional length of wire when the line is inclined. The relationship between the volume of water filtered and the wire length actually paid out was studied, employing 123 examples in good sampling conditions at various times and in places of the Japan Sea. The regression equation obtained was, V =- 15.46+0.2487 l where V: volume of water filtered (m3) when the net was hauled with l (m) length of wire. The t-test revealed that all the intercept, regression coefficients and correlation coefficients (0. 864) are significant (p<0.01). It is shown that the filtering efficiency of the net is 0.916 in general in the present examination. It is emphasized that the above equation can be applied to estimating the volume of water filtered when a flow-meter is not equipped to the net and the filtered water volume cannot be calculated directly. A table showing wire length/angle-volume of water relation is given, assuming filtering efficiencies of 100, 90 and 75%. | |||||
| 言語 | en | |||||
| bibliographic_information |
ja : 日本海区水産研究所研究報告 en : Bulletin of the Japan Sea Regional Fisheries Research Laboratory 巻 33, p. 159-162, ページ数 4, 発行日 1982-12 |
|||||
| 出版者 | ||||||
| 出版者 | 日本海区水産研究所 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | Japan Sea Regional Fisheries Research Laboratory | |||||
| 言語 | en | |||||
| item_10002_source_id_9 | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0021-4620 | |||||
| item_10002_source_id_11 | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00186380 | |||||
| 情報源 | ||||||
| 識別子タイプ | Local | |||||
| 関連識別子 | js_k_33_159_162 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010263734 | |||||
| 言語 | ja | |||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||
