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富山湾におけるホタルイカ(Watasenia scintillans)来遊量は予測可能か?
https://fra.repo.nii.ac.jp/records/2002429
https://fra.repo.nii.ac.jp/records/2002429dcf4873b-4f41-484d-90df-257fc50e8d54
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||||||||||||
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| 公開日 | 2024-04-23 | |||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||
| タイトル | 富山湾におけるホタルイカ(Watasenia scintillans)来遊量は予測可能か? | |||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||
| タイトル | Possibility of Forecasting the Abundance of the Firefly Squid Watasenia scintillans Immigrating into Toyama Bay, Southern Japan Sea | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 言語 | ||||||||||||||||||||||||
| 言語 | jpn | |||||||||||||||||||||||
| キーワード | ||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||||||
| 主題 | density-dependent effect; density-independent effect; multiple regression analysis; predator; Toyama Bay; Watasenia scintillans; water temperature | |||||||||||||||||||||||
| 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 |
西田, 宏
× 西田, 宏
WEKO
582
× 内山, 勇
× 平川, 和正
WEKO
1940
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| 抄録 | ||||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||||
| 内容記述 | Methods for elucidating the mechanism of interannual variability in the firefly squid (Watasenia scintillans) biomass were examined on the catch data (adult females only) obtained using set nets in Toyama Bay from 1982 to 1995, in relation to changes in both biotic and abiotic factors. It is indicated that the reproductive activity (mean egg abundance from March to May) of the squid in a certain year is not linked to the catch (from March to June) in the following year. Among several environmental factors, water temperature, phytoplankton (diatoms) density and possibly zooplankton biomass in spring (April or May) contribute to a significant increase in the squid catch (April) increasing from 1986 to 1990 (density-independent effect). However, such an effect has not always been recognized from 1991 to 1995 when the peaks and troughs of the squid catch were not synchronized with those of their mantle length in April, and the annual catches decreased gradually due mainly to density-dependent effects. On the other hand, in the light of top-down control, there are significant relationships between the catches of the squid and those of predators such as walleye pollack and mackerel during the period from 1982 to 1995. Results from multiple regression analysis suggest that water temperature (implying plankton biomass as an index of food availability), salinity and predation pressure are valid factors for forecasting the catch of this population immigrating into the bay from spring to early summer. | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 書誌情報 |
ja : 日本海区水産研究所研究報告 en : Bulletin of the Japan Sea National Fisheries Research Institute 巻 48, p. 37-49, ページ数 13, 発行日 1998-03 |
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| 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 National Fisheries Research Institute | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| ISSN | ||||||||||||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||||||||||||
| 収録物識別子 | 0021-4620 | |||||||||||||||||||||||
| 書誌レコードID | ||||||||||||||||||||||||
| 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_48_37_49 | |||||||||||||||||||||||
| 関連サイト | ||||||||||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010571910 | |||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||||||||||||||||||||
