培養水の塩分がシオミズツボワムシの増殖，培養コスト，栄養強化に及ぼす影響

• 小磯 雅彦

  (社)日本栽培漁業協会奄美事業場

• 日野 明徳

  東京大学大学院農学生命科学研究科

書誌事項

タイトル別名

• Effects of Salinity on Population Growth, Nutritive Value, and Feeding Cost of the Enriched Rotifer, Brachionus plicatilis.
• バイヨウスイ ノ エンブン ガ シオミズツボワムシ ノ ゾウショク バイヨウ コスト エイヨウ キョウカ ニ オヨボス エイキョウ

抄録

The rotifer Brachionus plicatilis was cultured in five salinities (7, 14, 20, 27 and 34 psu). Population growth increased with a decline in salinity, and the daily growth rates at 7, 14 and 20 psu were beyond three times as much as that at 34 psu. The feeding cost for the production of 100 million individuals at 14 and 20 psu dropped to almost half of that at 34 psu. The mean generation time, the spawning interval, and the life span shortened remarkably in low salinities. The percentage of feeding rotifer as an index of hyper salinity tolerance and the nutritive value after 17-hours of enrichment were less when the rotifer was directly transferred from 7 or 14 psu to 34 psu than those when transferred from 20 or 27 psu.<BR>Considering the high population growth and the reduction in feeding cost, rotifer culture in low salinities should be adopted in actual seedling production.

収録刊行物

• 水産増殖

  水産増殖 49 (1), 41-46, 2001

  日本水産増殖学会

キーワード

• <I>Brachionus plicatilis</I>
• Salinity
• Population growth
• Growth characteristics

詳細情報

• CRID: 1390282679694679296
• NII論文ID: 10007305441
• NII論文ID: 10012783030
• NII書誌ID: AN00124667
• DOI: 10.11233/aquaculturesci1953.49.41
• ISSN: 21850194
• ISSN: 03714217
• NDL書誌ID: 5722044
• Web Site: https://agriknowledge.affrc.go.jp/RN/2030630366
• Web Site: http://id.ndl.go.jp/bib/5722044
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5722044
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可