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Improvement of the zygote utilization and reduction of the seedling loss in the early stage of seedling production of Sargassum thunbergii (Fucales, Phaeophyta)

  • Biology
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Abstract

Artificial seedling production of Sargassum thunbergii is an effective way to relieve pressure on natural resources. In order to improve the utilization of zygotes and reduce the loss of seedlings, studies on the characteristic of the zygotes release, the development of rhizoids, the attachment of germlings, and the influence of jet washing were conducted. Results show that the percent of zygotes released was increased with time in the first 60 h. The capacity of germlings attached to the substratum was significantly increased, especially coincident with the time of the new rhizoids emerged and elongated. The detachment rate of germlings significantly decreased with the delay of starting time of jet washing or the reduction of jet washing velocity. However, the jet washing at any level applied in the experiment could cause considerable loss of germlings within the 20 days after the attachment. Our study provided some parameters to optimize the operation in the early stage of seedling production.

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Authors and Affiliations

  1. Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China

    Wei Liu  (刘玮) & Delin Duan  (段德麟)

  2. University of Chinese Academy of Sciences, Beijing, 100049, China

    Wei Liu  (刘玮)

  3. Marine Biology Institute of Shandong Province, Qingdao, 266104, China

    Wei Liu  (刘玮), Haiyi Wu  (吴海一) & Mengxia Liu  (刘梦侠)

Authors
  1. Wei Liu  (刘玮)
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  2. Haiyi Wu  (吴海一)
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  3. Mengxia Liu  (刘梦侠)
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  4. Delin Duan  (段德麟)
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Corresponding author

Correspondence to Delin Duan  (段德麟).

Additional information

Supported by the Public Science and Technology Research Funds Projects of Ocean (Nos. 201305021, 201305043, 201305005, 201405040), the National Natural Science Foundation of China (No. 41376129), and the Scientific Funds for Outstanding Young Scientists of Shandong Province Award (No. BS2012HZ013)

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Liu, W., Wu, H., Liu, M. et al. Improvement of the zygote utilization and reduction of the seedling loss in the early stage of seedling production of Sargassum thunbergii (Fucales, Phaeophyta). Chin. J. Ocean. Limnol. 34, 492–497 (2016). https://doi.org/10.1007/s00343-016-5041-1

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  • DOI: https://doi.org/10.1007/s00343-016-5041-1

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