Comparison of low temperature adaptation ability in three native and two hybrid strains of the rotifer Brachionus plicatilis species complex

• Kim, Hee-Jin

• Iwabuchi, Mutsumi

• Sakakura, Yoshitaka

• Hagiwara, Atsushi

抄録

The low temperature adaptation ability of five selected strains of the Brachionus plicatilis species complex, i.e., three native strains [ Japanese (NH1L), Australian, German] and two hybrid strains [♀NH1L and ♂Australian (N × A) and ♀NH1L and ♂German (N × G),was investigated in terms of life history traits, reproductive characteristics, and mobility under different thermal conditions (12 and 25 °C). The life history traits of these five strains included a longer lifespan, reproduction period and generation times at 12 °C than at 25 °C, combined with reduced lifetime egg and offspring production. At 12 °C, the intrinsic rate of natural increase was higher in NH1L and N × A strains. Reproductive characteristics determined at 12 °C by batch culture showed active population growth for NH1L and N × G strains, while no resting egg production was observed in all of the strains tested. The ratio of swimming rotifers at 12 °C was monitored every hour for 6 h (short term) and every day for 10 days (long term). In the short-term study there was a 81% ratio of swimming rotifers of the NH1L strain, while other strains exhibited low swimming ratios (<60%). In the long-term study NH1L and two hybrid strains showed a >75% swimming ratio from the initial day of the study. These results suggest that outcrossing of rotifer strains is useful to obtain live food resources for the larviculture of cold water fish.

Fisheries Science, 83(1), pp.65-72; 2017

収録刊行物

• Fisheries Science

  Fisheries Science 83 (1), 65-72, 2017-01

  日本水産学会

キーワード

• Brachionus plicatilis sp. complex
• Low temperature adaptation
• Life history
• Swimming activity

詳細情報

• CRID: 1050850247205682048
• NII論文ID: 120006987421
• NII書誌ID: AA10993718
• ISSN: 09199268
• ISSN: 14442906
• DOI: 10.1007/s12562-016-1045-1
• HANDLE: 10069/37768
• NDL書誌ID: 027848665
• Web Site: https://nagasaki-u.repo.nii.ac.jp/records/2550
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027848665
• Web Site: http://link.springer.com/content/pdf/10.1007/s12562-016-1045-1.pdf
• Web Site: http://link.springer.com/article/10.1007/s12562-016-1045-1/fulltext.html
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN